<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>3
<FILENAME>poapherdehirt.txt
<DESCRIPTION>EDGAR SUPPORTING DOCUMENT
<TEXT>
SCHLUMBERGER LIMITED

POWER OF ATTORNEY


The undersigned in his capacity as a director or officer or both of
Schlumberger Limited,a Netherlands Antilles corporation (the "Company"),
does hereby appoint Janet B. Glassmacher, Lynda M. Quagliara and Ellen
Summer, and each of them severally, his true and lawful attorney-in-
fact with power to act with or without the other and with full power
of substitution and resubstitution, to execute for him and in his name,
place and stead, in his capacity as a director or officer or both of
the Company, a statement of beneficial ownership on Form 3, Form 4 or
Form 5, and to file the same or cause the same to be filed with the
Securities and Exchange Commission.  This Power of Attorney shall
remain in full force and effect until the undersigned is no longer
required to file Forms 3, 4 and 5.

June 27, 2003	/s/ Doug Pferdehirt
	          Doug Pferdehirt













</TEXT>
</DOCUMENT>
