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1. WO2000040667 - FLUIDS AND TECHNIQUES FOR HYDROCARBON WELL COMPLETION

Publication Number WO/2000/040667
Publication Date 13.07.2000
International Application No. PCT/US1999/029011
International Filing Date 08.12.1999
Chapter 2 Demand Filed 22.06.2000
IPC
C09K 8/52 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
CPC
C09K 2208/24
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2208Aspects relating to compositions of drilling or well treatment fluids
24Bacteria or enzyme containing gel breakers
C09K 8/52
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
52Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
Y10S 507/925
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
507Earth boring, well treating, and oil field chemistry
925Completion or workover fluid
Applicants
  • SCHLUMBERGER TECHNOLOGY CORPORATION [US/US]; 110 Schlumberger Drive, MD-1 Sugar Land, TX 77478, US
Inventors
  • TIBBLES, Raymond, J.; US
  • PARLAR, Mehmet; US
  • CHANG, Frank, F.; US
  • FU, Diankui; US
  • DAVISON, Mark; GB
  • MORRIS, Elizabeth, W., A.; GB
  • WIERENGA, Antje, M.; NL
  • VINOD, Palathinkara; US
Agents
  • Y'BARBO, Douglas ; 110 Schlumberger Drive, MD-1 Sugar Land, TX 77478, US
  • NAVA, Robin, C.; Schlumberger Technology Corporation 110 Schlumberger Drive, MD1 Sugar Land, Tx 77478, US
Priority Data
09/224,44031.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FLUIDS AND TECHNIQUES FOR HYDROCARBON WELL COMPLETION
(FR) FLUIDES ET TECHNIQUES DE COMPLETION DE PUITS D'HYDROCARBURES
Abstract
(EN)
The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., 'completion fluids'), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations ('filtercake'); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
(FR)
L'invention concerne de nouveaux fluides et techniques qui permettent d'optimiser/de renforcer la production d'hydrocarbures à partir de formations souterraines (par exemple, des 'fluides de complétion'). Elle concerne en particulier des fluides et des techniques qui permettent d'éliminer les dégâts au puits de forage et à proximité du puits de forage sous la forme de revêtement résultant d'opérations liées au forage et à la production ('gâteau de filtration'). Lesdites techniques sont applicables telles qu'elles ou conjointement avec d'autres opérations de complétion, telles que le gravillonnage de crépines. Les modes de réalisations préférés sont un agent chélateur et des systèmes d'enzymes dans une matrice de tensioactifs viscoélastiques.
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