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 each of Saul R. Laureles
and Lynda M. Quagliara, or either of them acting singly, his/her true
and lawful attorney in fact with full power of substitution, to (a) prepare,
execute in the undersigneds name and on the undersigneds behalf,
and submit to the U.S. Securities and Exchange Commission (the SEC)
a Form ID, including amendments thereto, and any other documents
necessary or appropriate to obtain codes, passwords and passphrases
enabling the undersigned to make electronic filings with the SEC of reports
required by Section 16(a) of the Securities Exchange Act of 1934, as
amended (the Exchange Act), or any rule or regulation of the SEC, and
(b) execute for and on behalf of the undersigned, in the undersigneds
capacity as a director or officer, or both, of the Company, Forms 3, 4 and
5 in accordance with Section 16 of the Exchange Act, as well as Forms 144,
and complete and execute any amendment or amendments thereto, and to
file the same or cause the same to be filed with the SEC.
	This Power of Attorney supersedes any and all prior and existing
powers of attorney signed by the undersigned with respect to the subject matter
hereof, and shall remain in full force and effect until the undersigned is no
longer required to file Forms 3, 4, 5 or 144 with respect to the undersigneds
holdings of and transactions in securities issued by the Company, unless
earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys in fact.
July 27, 2010 	/s/ Olivier Le Peuch
144 with respect to the u