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, Form 5 or Form 144, 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, 5 and 144.


April 30,2008                    /s/ Satish Pai
					Satish Pai