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(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT
COOPERATION TREATY (PCT)
(19) World Intellectual Property OrganizationInternational
Bureau
(43) International Publication Date4 September 2003
(04.09.2003)
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(51) International Patent Classification":49/00
peT(10) International Publication NumberWO 03/072907 At
E21B 44/00, (71) Applicant (jar CA only): SCHLUMBERGER
CANADALIMITED rCA/CAl; 525-3rd Ave S.w., Calgary, AlbertaT2P OG4
(CA).
(21) International Application Number: PCTIIB03/00680
(25) Filing Language:(22) International Filing Date: 24 February
2003 (24.02.2003)
English(26) Publication Language:
(30) Priority Data:10/085,808
English
28 February 2002 (28.02.2002) US(71) Applicant (jar BR only):
SCHLUMBERGER
SURENCO SA. [PAIPA]; 8 Calle Aquilino de la Guardia,Panama City
(PA).
-(71) Applicant (jar BF, BJ, CF, CG, CI, CM, GA, GN, GQ, o w
.IN, LT, MA, ML, MR, NE, SN, TD, TG, TN, IT, VN only):PRAD RESEARCH
&DEVELOPMENT NY. [NLINL];De Ruyterkade 62, Willemstad, Curacao
(NL).-iiiiiiiiiiiiiii
(71) Applicant (jar GB, Ji; NL only): SCHLUMBERGERHOLDINGS
LIMITED [-/-]; P.O. Box 71, CraigmuirChambers, Road Town, Tortola
(VG).
(71) Applicant (jar FR only): SERVICES PETROLIERSSCHLUMBERGER
[FRIFR]; 42, rue Saint-Dominique,F-75007 Paris (FR).
(71) Applicant (jar all designated States except BF, BJ, BR,CA,
CF, CG, ct. CM, CZ, DZ, EC, FR, GA, GB, GN,GQ, Gw, IN, n: LT, MA,
ML, MR, NE, NL, SN, TD, TG,TN, TT, VN): SCHLUMBERGER TECHNOLOGY
BV[NLINL]; Parkstaat 83-89, NL-2514 JG The Hague (NL).
(72) Inventors: YOUNES JALALI-YAZDI; 3 PenarthPlace, Cambridge,
CB3 9LU (GB). SHEKHAR SINHA;60 Petersfield Mansions, Cambridge, CB3
9LU (GB).ALLYSON GAJRAJ; 22 Thorncroft, Saffron Walden,Essex, CB 10
2AZ (GB). SORAYA BENTANCOURT; 2
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(54) Title: METHOD FOR DESINGING A WELL COMPLETION
t'-Q0\Mt'-Q- . . . . .~Q57) Abstract: A method and apparatus for
performing well planning and design includes performing a
general-level design. Theo general-level design involves generating
a proposed well configuration based on inputs from a user. The
proposed configuration,> generated by a software module,
includes a well trajectory, the reservoir-wellbore interface, and
completion equipment. The pro-~ posed configuration is refined by
an optimizer based on a performance measure or a target
constraint.
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