<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
<!--Generated by ThunderDome XBRL - 05:05PM UTC 2021-08-05--><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:country="http://xbrl.sec.gov/country/2021" xmlns:currency="http://xbrl.sec.gov/currency/2021" xmlns:dei="http://xbrl.sec.gov/dei/2021" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:exch="http://xbrl.sec.gov/exch/2021" xmlns:fi="http://franksinternational.com/20210630" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:naics="http://xbrl.sec.gov/naics/2021" xmlns:sic="http://xbrl.sec.gov/sic/2021" xmlns:srt="http://fasb.org/srt/2021-01-31" xmlns:srt-types="http://fasb.org/srt-types/2021-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2021" xmlns:us-gaap="http://fasb.org/us-gaap/2021-01-31" xmlns:us-types="http://fasb.org/us-types/2021-01-31" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://franksinternational.com/20210630">
  <xsd:import namespace="http://xbrl.sec.gov/country/2021" schemaLocation="https://xbrl.sec.gov/country/2021/country-2021.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/naics/2021" schemaLocation="https://xbrl.sec.gov/naics/2021/naics-2021.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xsd:import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd"/>
  <xsd:import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/dei/2021" schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2021" schemaLocation="https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/sic/2021" schemaLocation="https://xbrl.sec.gov/sic/2021/sic-2021.xsd"/>
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/exch/2021" schemaLocation="https://xbrl.sec.gov/exch/2021/exch-2021.xsd"/>
  <xsd:import namespace="http://fasb.org/us-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd"/>
  <xsd:import namespace="http://xbrl.sec.gov/currency/2021" schemaLocation="https://xbrl.sec.gov/currency/2021/currency-2021.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xsd:import namespace="http://fasb.org/srt-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd"/>
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="fi-20210630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="fi-20210630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="fi-20210630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="fi-20210630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="statement-document-and-entity-information" roleURI="http://franksinternational.com/20210630/role/statement-document-and-entity-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-balance-sheets-current-period-unaudited" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">001 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-balance-sheets-current-period-unaudited-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">002 - Statement - Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-operations-unaudited" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-statements-of-operations-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">003 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-comprehensive-loss" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-statements-of-comprehensive-loss">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">004 - Statement - Condensed Consolidated Statements of Comprehensive Loss</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-stockholders-equity-unaudited" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-statements-of-stockholders-equity-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">005 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-condensed-consolidated-statements-of-cash-flows-unaudited" roleURI="http://franksinternational.com/20210630/role/statement-condensed-consolidated-statements-of-cash-flows-unaudited">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation" roleURI="http://franksinternational.com/20210630/role/statement-note-1-basis-of-presentation">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">007 - Disclosure - Note 1 - Basis of Presentation</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-cash-cash-equivalents-and-restricted-cash" roleURI="http://franksinternational.com/20210630/role/statement-note-2-cash-cash-equivalents-and-restricted-cash">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">008 - Disclosure - Note 2 - Cash, Cash Equivalents and Restricted Cash</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-accounts-receivable-net" roleURI="http://franksinternational.com/20210630/role/statement-note-3-accounts-receivable-net">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">009 - Disclosure - Note 3 - Accounts Receivable, Net</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-inventories-net" roleURI="http://franksinternational.com/20210630/role/statement-note-4-inventories-net">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">010 - Disclosure - Note 4 - Inventories, Net</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-property-plant-and-equipment" roleURI="http://franksinternational.com/20210630/role/statement-note-5-property-plant-and-equipment">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">011 - Disclosure - Note 5 - Property, Plant and Equipment</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-goodwill-and-intangible-assets" roleURI="http://franksinternational.com/20210630/role/statement-note-6-goodwill-and-intangible-assets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">012 - Disclosure - Note 6 - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-other-assets" roleURI="http://franksinternational.com/20210630/role/statement-note-7-other-assets">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">013 - Disclosure - Note 7 - Other Assets</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-accounts-payable-and-accrued-liabilities" roleURI="http://franksinternational.com/20210630/role/statement-note-8-accounts-payable-and-accrued-liabilities">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">014 - Disclosure - Note 8 - Accounts Payable and Accrued Liabilities</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt" roleURI="http://franksinternational.com/20210630/role/statement-note-9-debt">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">015 - Disclosure - Note 9 - Debt</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements" roleURI="http://franksinternational.com/20210630/role/statement-note-10-fair-value-measurements">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">016 - Disclosure - Note 10 - Fair Value Measurements</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-related-party-transactions" roleURI="http://franksinternational.com/20210630/role/statement-note-11-related-party-transactions">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">017 - Disclosure - Note 11 - Related Party Transactions</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-loss-per-common-share" roleURI="http://franksinternational.com/20210630/role/statement-note-12-loss-per-common-share">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">018 - Disclosure - Note 12 - Loss Per Common Share</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-income-taxes" roleURI="http://franksinternational.com/20210630/role/statement-note-13-income-taxes">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">019 - Disclosure - Note 13 - Income Taxes</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-14-commitments-and-contingencies" roleURI="http://franksinternational.com/20210630/role/statement-note-14-commitments-and-contingencies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">020 - Disclosure - Note 14 - Commitments and Contingencies</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-severance-and-other-charges-net" roleURI="http://franksinternational.com/20210630/role/statement-note-15-severance-and-other-charges-net">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">021 - Disclosure - Note 15 - Severance and Other Charges, Net</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">022 - Disclosure - Note 16 - Segment Information</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-significant-accounting-policies-policies" roleURI="http://franksinternational.com/20210630/role/statement-significant-accounting-policies-policies">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">023 - Disclosure - Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-cash-cash-equivalents-and-restricted-cash-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-2-cash-cash-equivalents-and-restricted-cash-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">024 - Disclosure - Note 2 - Cash, Cash Equivalents and Restricted Cash (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-accounts-receivable-net-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-3-accounts-receivable-net-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">025 - Disclosure - Note 3 - Accounts Receivable, Net (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-inventories-net-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-4-inventories-net-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">026 - Disclosure - Note 4 - Inventories, Net (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-property-plant-and-equipment-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-5-property-plant-and-equipment-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">027 - Disclosure - Note 5 - Property, Plant and Equipment (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-goodwill-and-intangible-assets-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-6-goodwill-and-intangible-assets-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">028 - Disclosure - Note 6 - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-other-assets-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-7-other-assets-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">029 - Disclosure - Note 7 - Other Assets (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-accounts-payable-and-accrued-liabilities-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-8-accounts-payable-and-accrued-liabilities-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">030 - Disclosure - Note 8 - Accounts Payable and Accrued Liabilities (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-10-fair-value-measurements-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">031 - Disclosure - Note 10 - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-loss-per-common-share-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-12-loss-per-common-share-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">032 - Disclosure - Note 12 - Loss Per Common Share (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-severance-and-other-charges-net-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-15-severance-and-other-charges-net-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">033 - Disclosure - Note 15 - Severance and Other Charges, Net (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information-tables" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information-tables">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">034 - Disclosure - Note 16 - Segment Information (Tables)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-1-basis-of-presentation-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-1-basis-of-presentation-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">035 - Disclosure - Note 1 - Basis of Presentation (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-cash-cash-equivalents-and-restricted-cash-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-2-cash-cash-equivalents-and-restricted-cash-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">036 - Disclosure - Note 2 - Cash, Cash Equivalents and Restricted Cash (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-2-cash-cash-equivalents-and-restricted-cash-summary-of-cash-cash-equivalents-and-restricted-cash-details" roleURI="http://franksinternational.com/20210630/role/statement-note-2-cash-cash-equivalents-and-restricted-cash-summary-of-cash-cash-equivalents-and-restricted-cash-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">037 - Disclosure - Note 2 - Cash, Cash Equivalents and Restricted Cash - Summary of Cash, Cash Equivalents and Restricted Cash (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details" roleURI="http://franksinternational.com/20210630/role/statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">038 - Disclosure - Note 3 - Accounts Receivable, Net - Summary of Accounts Receivable, Net (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details-parentheticals" roleURI="http://franksinternational.com/20210630/role/statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">039 - Disclosure - Note 3 - Accounts Receivable, Net - Summary of Accounts Receivable, Net (Details) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-inventories-net-summary-of-inventories-details" roleURI="http://franksinternational.com/20210630/role/statement-note-4-inventories-net-summary-of-inventories-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">040 - Disclosure - Note 4 - Inventories, Net - Summary of Inventories (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-4-inventories-net-summary-of-inventories-details-parentheticals" roleURI="http://franksinternational.com/20210630/role/statement-note-4-inventories-net-summary-of-inventories-details-parentheticals">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">041 - Disclosure - Note 4 - Inventories, Net - Summary of Inventories (Details) (Parentheticals)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-property-plant-and-equipment-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-5-property-plant-and-equipment-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">042 - Disclosure - Note 5 - Property, Plant and Equipment (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" roleURI="http://franksinternational.com/20210630/role/statement-note-5-property-plant-and-equipment-summary-of-property-plant-and-equipment-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">043 - Disclosure - Note 5 - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-5-property-plant-and-equipment-depreciation-and-amortization-expense-details" roleURI="http://franksinternational.com/20210630/role/statement-note-5-property-plant-and-equipment-depreciation-and-amortization-expense-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">044 - Disclosure - Note 5 - Property, Plant and Equipment - Depreciation and Amortization Expense (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-goodwill-and-intangible-assets-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-6-goodwill-and-intangible-assets-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">045 - Disclosure - Note 6 - Goodwill and Intangible Assets (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-6-goodwill-and-intangible-assets-summary-of-intangible-assets-details" roleURI="http://franksinternational.com/20210630/role/statement-note-6-goodwill-and-intangible-assets-summary-of-intangible-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">046 - Disclosure - Note 6 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-7-other-assets-summary-of-other-assets-details" roleURI="http://franksinternational.com/20210630/role/statement-note-7-other-assets-summary-of-other-assets-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">047 - Disclosure - Note 7 - Other Assets - Summary of Other Assets (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-8-accounts-payable-and-accrued-liabilities-summary-of-accounts-payable-and-accrued-liabilities-details" roleURI="http://franksinternational.com/20210630/role/statement-note-8-accounts-payable-and-accrued-liabilities-summary-of-accounts-payable-and-accrued-liabilities-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">048 - Disclosure - Note 8 - Accounts Payable and Accrued Liabilities - Summary of Accounts Payable and Accrued Liabilities (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-9-debt-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-9-debt-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">049 - Disclosure - Note 9 - Debt (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-10-fair-value-measurements-summary-of-financial-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details" roleURI="http://franksinternational.com/20210630/role/statement-note-10-fair-value-measurements-summary-of-financial-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">050 - Disclosure - Note 10 - Fair Value Measurements - Summary of Financial Assets and Liabilities Measured At Fair Value On a Recurring Basis (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-11-related-party-transactions-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-11-related-party-transactions-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">051 - Disclosure - Note 11 - Related Party Transactions (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-12-loss-per-common-share-calculation-of-basic-and-diluted-loss-per-share-details" roleURI="http://franksinternational.com/20210630/role/statement-note-12-loss-per-common-share-calculation-of-basic-and-diluted-loss-per-share-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">052 - Disclosure - Note 12 - Loss Per Common Share - Calculation of Basic and Diluted Loss Per Share (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-13-income-taxes-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-13-income-taxes-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">053 - Disclosure - Note 13 - Income Taxes (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-severance-and-other-charges-net-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-15-severance-and-other-charges-net-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">054 - Disclosure - Note 15 - Severance and Other Charges, Net (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-15-severance-and-other-charges-net-summary-of-severance-and-other-charges-net-details" roleURI="http://franksinternational.com/20210630/role/statement-note-15-severance-and-other-charges-net-summary-of-severance-and-other-charges-net-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">055 - Disclosure - Note 15 - Severance and Other Charges, Net - Summary of Severance and Other Charges, Net (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information-details-textual" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information-details-textual">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">056 - Disclosure - Note 16 - Segment Information (Details Textual)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information-disaggregation-of-revenue-by-revenue-source-and-geography-details" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information-disaggregation-of-revenue-by-revenue-source-and-geography-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">057 - Disclosure - Note 16 - Segment Information - Disaggregation of Revenue by Revenue Source and Geography (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information-reconciliation-of-adjusted-earnings-before-interest-taxes-depreciation-and-amortization-from-segments-to-net-loss-details" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information-reconciliation-of-adjusted-earnings-before-interest-taxes-depreciation-and-amortization-from-segments-to-net-loss-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">058 - Disclosure - Note 16 - Segment Information - Reconciliation of Adjusted Earnings Before Interest, Taxes, Depreciation, and Amortization From Segments to Net Loss (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
      <link:roleType id="statement-note-16-segment-information-financial-information-with-respect-to-reportable-segments-details" roleURI="http://franksinternational.com/20210630/role/statement-note-16-segment-information-financial-information-with-respect-to-reportable-segments-details">
        <link:definition xmlns="http://www.xbrl.org/2003/linkbase">059 - Disclosure - Note 16 - Segment Information - Financial Information with Respect to Reportable Segments (Details)</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="fi_ABLCreditFacilityMember" name="ABLCreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_AccruedPurchaseOrders" name="AccruedPurchaseOrders" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fi_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" name="AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_AlternateBaseRateMember" name="AlternateBaseRateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_CementingEquipmentMember" name="CementingEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_CommonStockOutstandingMember" name="CommonStockOutstandingMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_CumulativeEarningsDeficitPeriod" name="CumulativeEarningsDeficitPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_DebtInstrumentAdditionalBasisSpreadOnVariableRate" name="DebtInstrumentAdditionalBasisSpreadOnVariableRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_DebtInstrumentCovenantFixedChargeCoverageRatio" name="DebtInstrumentCovenantFixedChargeCoverageRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_DepreciationAndAmortizationExpenseTableTextBlock" name="DepreciationAndAmortizationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_ExproMember" name="ExproMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_FederalFundsEffectiveRateInterestRateFloor" name="FederalFundsEffectiveRateInterestRateFloor" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_FinancialLiabilitiesFairValueDisclosureDeferredCompensationPlans" name="FinancialLiabilitiesFairValueDisclosureDeferredCompensationPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fi_FinishedGoodsMember" name="FinishedGoodsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_FurnitureFixturesAndComputersMember" name="FurnitureFixturesAndComputersMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_InventoryPipeAndConnectors" name="InventoryPipeAndConnectors" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fi_InvestigationRelatedMattersExpense" name="InvestigationRelatedMattersExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fi_LineOfCreditFacilityCovenantTermMinimumFixedCharges" name="LineOfCreditFacilityCovenantTermMinimumFixedCharges" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fi_LineOfCreditFacilityCovenantTermMinimumFixedChargesPercentage" name="LineOfCreditFacilityCovenantTermMinimumFixedChargesPercentage" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="fi_LineOfCreditFacilityCovenantTermsPostTriggeringEventRemainingBorrowingCapacityThresholdConsecutiveDays" name="LineOfCreditFacilityCovenantTermsPostTriggeringEventRemainingBorrowingCapacityThresholdConsecutiveDays" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_LineOfCreditFacilityCovenantTermsTriggeringEventRemainingBorrowingCapacityThresholdConsecutiveDays" name="LineOfCreditFacilityCovenantTermsTriggeringEventRemainingBorrowingCapacityThresholdConsecutiveDays" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_LineOfCreditFacilityMaximumBorrowingCapacityPotentialIncrease" name="LineOfCreditFacilityMaximumBorrowingCapacityPotentialIncrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_LongTermTreasuryRateMember" name="LongTermTreasuryRateMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_MergerExchangeRatio" name="MergerExchangeRatio" nillable="true" substitutionGroup="xbrli:item" type="xbrli:pureItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_MergerPercentageOfPostMergerStockOfCombinedCompanyOwnedByReportingEntityShareholders" name="MergerPercentageOfPostMergerStockOfCombinedCompanyOwnedByReportingEntityShareholders" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="fi_MergerPercentageOfPostMergerStockOfCombinedCompanyOwnedByTheOtherEntitysShareholders" name="MergerPercentageOfPostMergerStockOfCombinedCompanyOwnedByTheOtherEntitysShareholders" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fi_MergerWithExproMember" name="MergerWithExproMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_MosingHoldingsMember" name="MosingHoldingsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_NumberOfContinentsInWhichEntityOperates" name="NumberOfContinentsInWhichEntityOperates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="fi_OtherChargesCredits" name="OtherChargesCredits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_OtherGeographicalAreasMember" name="OtherGeographicalAreasMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_PercentageOfTaxBenefitsRealizedPayableUnderTaxReceivableAgreement" name="PercentageOfTaxBenefitsRealizedPayableUnderTaxReceivableAgreement" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="fi_PercentageOfTaxBenefitsRetainedUnderTaxReceivableAgreement" name="PercentageOfTaxBenefitsRetainedUnderTaxReceivableAgreement" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_PipeAndConnectorsMember" name="PipeAndConnectorsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_PotentialTerminationOfMergerAgreementUnderSpecifiedCircumstancesPotentialTerminationFeePayable" name="PotentialTerminationOfMergerAgreementUnderSpecifiedCircumstancesPotentialTerminationFeePayable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="fi_PotentialTerminationOfMergerAgreementUnderSpecifiedCircumstancesPotentialTerminationFeeReceivable" name="PotentialTerminationOfMergerAgreementUnderSpecifiedCircumstancesPotentialTerminationFeeReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="fi_ReconciliationOfAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationFromSegmentsToConsolidatedTableTextBlock" name="ReconciliationOfAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationFromSegmentsToConsolidatedTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_RestructuringSettlementAndImpairmentProvisionsCredits" name="RestructuringSettlementAndImpairmentProvisionsCredits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fi_SensitivityAnalysisOfFairValueGoodwillImpairmentLossImpactOf50BasisPointsAdverseChangeInDiscountRate" name="SensitivityAnalysisOfFairValueGoodwillImpairmentLossImpactOf50BasisPointsAdverseChangeInDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="fi_SensitivityAnalysisOfFairValueGoodwillImpairmentLossPotentialIncreaseDecreaseOnBasisSpreadOfDiscountRate" name="SensitivityAnalysisOfFairValueGoodwillImpairmentLossPotentialIncreaseDecreaseOnBasisSpreadOfDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_TaxReceivableAgreementBasisSpreadOnVariableRate" name="TaxReceivableAgreementBasisSpreadOnVariableRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_TaxReceivableAgreementCashPaymentForSettlementOfEarlyTerminationPaymentObligation" name="TaxReceivableAgreementCashPaymentForSettlementOfEarlyTerminationPaymentObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fi_TaxReceivableAgreementConditionOfEarlyTerminationPaymentObligationSettlementFutureContingentPaymentsCashTaxSavingsThreshold" name="TaxReceivableAgreementConditionOfEarlyTerminationPaymentObligationSettlementFutureContingentPaymentsCashTaxSavingsThreshold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="fi_TaxReceivableAgreementConditionOfEarlyTerminationPaymentObligationSettlementPeriodOverWhichFutureContingentPaymentsMayBeMade" name="TaxReceivableAgreementConditionOfEarlyTerminationPaymentObligationSettlementPeriodOverWhichFutureContingentPaymentsMayBeMade" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_TaxReceivableAgreementLiabilityDiscountRate" name="TaxReceivableAgreementLiabilityDiscountRate" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="fi_TaxReceivableAgreementLiabilityEstimatedTerminationPayment" name="TaxReceivableAgreementLiabilityEstimatedTerminationPayment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="fi_TubularRunningServicesMember" name="TubularRunningServicesMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_TubularsMember" name="TubularsMember" nillable="true" substitutionGroup="xbrli:item" type="dtr-types:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="fi_UnrealizedAndRealizedGainsLosses" name="UnrealizedAndRealizedGainsLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-10-fair-value-measurements-summary-of-financial-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details" name="statement-statement-note-10-fair-value-measurements-summary-of-financial-assets-and-liabilities-measured-at-fair-value-on-a-recurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-10-fair-value-measurements-tables" name="statement-statement-note-10-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-12-loss-per-common-share-calculation-of-basic-and-diluted-loss-per-share-details" name="statement-statement-note-12-loss-per-common-share-calculation-of-basic-and-diluted-loss-per-share-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-12-loss-per-common-share-tables" name="statement-statement-note-12-loss-per-common-share-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-15-severance-and-other-charges-net-summary-of-severance-and-other-charges-net-details" name="statement-statement-note-15-severance-and-other-charges-net-summary-of-severance-and-other-charges-net-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-15-severance-and-other-charges-net-tables" name="statement-statement-note-15-severance-and-other-charges-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-16-segment-information-disaggregation-of-revenue-by-revenue-source-and-geography-details" name="statement-statement-note-16-segment-information-disaggregation-of-revenue-by-revenue-source-and-geography-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-16-segment-information-financial-information-with-respect-to-reportable-segments-details" name="statement-statement-note-16-segment-information-financial-information-with-respect-to-reportable-segments-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-16-segment-information-reconciliation-of-adjusted-earnings-before-interest-taxes-depreciation-and-amortization-from-segments-to-net-loss-details" name="statement-statement-note-16-segment-information-reconciliation-of-adjusted-earnings-before-interest-taxes-depreciation-and-amortization-from-segments-to-net-loss-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-16-segment-information-tables" name="statement-statement-note-16-segment-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-2-cash-cash-equivalents-and-restricted-cash-summary-of-cash-cash-equivalents-and-restricted-cash-details" name="statement-statement-note-2-cash-cash-equivalents-and-restricted-cash-summary-of-cash-cash-equivalents-and-restricted-cash-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-2-cash-cash-equivalents-and-restricted-cash-tables" name="statement-statement-note-2-cash-cash-equivalents-and-restricted-cash-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details" name="statement-statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details-parentheticals" name="statement-statement-note-3-accounts-receivable-net-summary-of-accounts-receivable-net-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-3-accounts-receivable-net-tables" name="statement-statement-note-3-accounts-receivable-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-4-inventories-net-summary-of-inventories-details" name="statement-statement-note-4-inventories-net-summary-of-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-4-inventories-net-summary-of-inventories-details-parentheticals" name="statement-statement-note-4-inventories-net-summary-of-inventories-details-parentheticals" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-4-inventories-net-tables" name="statement-statement-note-4-inventories-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-5-property-plant-and-equipment-depreciation-and-amortization-expense-details" name="statement-statement-note-5-property-plant-and-equipment-depreciation-and-amortization-expense-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-5-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" name="statement-statement-note-5-property-plant-and-equipment-summary-of-property-plant-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-5-property-plant-and-equipment-tables" name="statement-statement-note-5-property-plant-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-6-goodwill-and-intangible-assets-summary-of-intangible-assets-details" name="statement-statement-note-6-goodwill-and-intangible-assets-summary-of-intangible-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-6-goodwill-and-intangible-assets-tables" name="statement-statement-note-6-goodwill-and-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-7-other-assets-summary-of-other-assets-details" name="statement-statement-note-7-other-assets-summary-of-other-assets-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-7-other-assets-tables" name="statement-statement-note-7-other-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-8-accounts-payable-and-accrued-liabilities-summary-of-accounts-payable-and-accrued-liabilities-details" name="statement-statement-note-8-accounts-payable-and-accrued-liabilities-summary-of-accounts-payable-and-accrued-liabilities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-note-8-accounts-payable-and-accrued-liabilities-tables" name="statement-statement-note-8-accounts-payable-and-accrued-liabilities-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="fi_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
