<SEC-DOCUMENT>0000928054-18-000016.txt : 20180212
<SEC-HEADER>0000928054-18-000016.hdr.sgml : 20180212
<ACCEPTANCE-DATETIME>20180212190517
ACCESSION NUMBER:		0000928054-18-000016
CONFORMED SUBMISSION TYPE:	5/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180212
DATE AS OF CHANGE:		20180212

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hardy Carla S.
		CENTRAL INDEX KEY:			0001576961

	FILING VALUES:
		FORM TYPE:		5/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13270
		FILM NUMBER:		18598529

	MAIL ADDRESS:	
		STREET 1:		10603 W. SAM HOUSTON PKWY N.
		STREET 2:		SUITE 300
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FLOTEK INDUSTRIES INC/CN/
		CENTRAL INDEX KEY:			0000928054
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				900023731
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10603 W. SAM HOUSTON PARKWAY N
		STREET 2:		SUITE 300
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043
		BUSINESS PHONE:		7138499911

	MAIL ADDRESS:	
		STREET 1:		10603 W. SAM HOUSTON PARKWAY N
		STREET 2:		SUITE 300
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77043
</SEC-HEADER>
<DOCUMENT>
<TYPE>5/A
<SEQUENCE>1
<FILENAME>wf-form5a_151848030200423.xml
<DESCRIPTION>FORM 5/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>5/A</documentType>

    <periodOfReport>2017-12-31</periodOfReport>

    <dateOfOriginalSubmission>2018-02-12</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000928054</issuerCik>
        <issuerName>FLOTEK INDUSTRIES INC/CN/</issuerName>
        <issuerTradingSymbol>FTK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001576961</rptOwnerCik>
            <rptOwnerName>Hardy Carla S.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10603 W. SAM HOUSTON PKWY N.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77064</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By William M. Hardy V Irrevocable Trust</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Ms. Hardy has previously reported a beneficial interest in shares of common stock of the Company held by an irrevocable trust for the benefit of a dependent child. This child is no longer a dependent of Ms. Hardy and, as a result, Ms. Hardy no longer has any beneficial interest in the shares of common stock of the Company owned by the trust and such shares are no longer included herein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Carla Schulz Hardy</signatureName>
        <signatureDate>2018-02-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
