SCHLUMBERGER LIMITED POWER OF ATTORNEY

       The undersigned, in his capacity as a director or
officer, or both, of Schlumberger Limited, a Curacao
corporation (the "Company"), does hereby appoint each of
Saul Laureles, Samantha Blons, and Grace Holmes, or
any of them acting singly, his 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.

October 2, 2019

/s/ Rajeev Sonthalia
Rajeev Sonthalia