GB2287266B - Wellbore fluid - Google Patents

Wellbore fluid

Info

Publication number
GB2287266B
GB2287266B GB9425850A GB9425850A GB2287266B GB 2287266 B GB2287266 B GB 2287266B GB 9425850 A GB9425850 A GB 9425850A GB 9425850 A GB9425850 A GB 9425850A GB 2287266 B GB2287266 B GB 2287266B
Authority
GB
United Kingdom
Prior art keywords
wellbore fluid
wellbore
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9425850A
Other versions
GB9425850D0 (en
GB2287266A (en
Inventor
Christopher Alan Sawdon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sofitech NV
Original Assignee
Sofitech NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB939318100A external-priority patent/GB9318100D0/en
Priority claimed from GB9413075A external-priority patent/GB9413075D0/en
Application filed by Sofitech NV filed Critical Sofitech NV
Priority to GB9425850A priority Critical patent/GB2287266B/en
Priority claimed from PCT/GB1994/001878 external-priority patent/WO1995006695A1/en
Publication of GB9425850D0 publication Critical patent/GB9425850D0/en
Publication of GB2287266A publication Critical patent/GB2287266A/en
Application granted granted Critical
Publication of GB2287266B publication Critical patent/GB2287266B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/34—Organic liquids
GB9425850A 1993-09-01 1994-08-30 Wellbore fluid Expired - Fee Related GB2287266B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9425850A GB2287266B (en) 1993-09-01 1994-08-30 Wellbore fluid

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB939318100A GB9318100D0 (en) 1993-09-01 1993-09-01 Wellbore fluid
GB9413075A GB9413075D0 (en) 1994-06-29 1994-06-29 Wellbore fluid
PCT/GB1994/001878 WO1995006695A1 (en) 1993-09-01 1994-08-30 Wellbore fluid
GB9425850A GB2287266B (en) 1993-09-01 1994-08-30 Wellbore fluid

Publications (3)

Publication Number Publication Date
GB9425850D0 GB9425850D0 (en) 1995-07-19
GB2287266A GB2287266A (en) 1995-09-13
GB2287266B true GB2287266B (en) 1997-07-30

Family

ID=27266831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9425850A Expired - Fee Related GB2287266B (en) 1993-09-01 1994-08-30 Wellbore fluid

Country Status (1)

Country Link
GB (1) GB2287266B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325466A2 (en) * 1988-01-19 1989-07-26 Coastal Mud, Inc. The use of polyalphaolefin in downhole drilling
EP0449257A2 (en) * 1990-03-30 1991-10-02 M-I Drilling Fluids Company Oil based synthetic hydrocarbon drilling fluid
GB2258258A (en) * 1991-07-27 1993-02-03 David Brankling Drilling fluid emulsion composition
WO1994016030A1 (en) * 1993-01-14 1994-07-21 M-I Drilling Fluids Company Non-fluorescing oil-based drilling fluid
EP0627481A1 (en) * 1993-06-01 1994-12-07 Albemarle Corporation Invert drilling fluids
WO1995009215A1 (en) * 1993-09-29 1995-04-06 Mobil Oil Corporation Non toxic, biodegradable well fluids
WO1995021226A1 (en) * 1994-02-02 1995-08-10 Chevron Chemical Company Drilling fluids comprising mostly linear olefins

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0325466A2 (en) * 1988-01-19 1989-07-26 Coastal Mud, Inc. The use of polyalphaolefin in downhole drilling
EP0449257A2 (en) * 1990-03-30 1991-10-02 M-I Drilling Fluids Company Oil based synthetic hydrocarbon drilling fluid
GB2258258A (en) * 1991-07-27 1993-02-03 David Brankling Drilling fluid emulsion composition
WO1994016030A1 (en) * 1993-01-14 1994-07-21 M-I Drilling Fluids Company Non-fluorescing oil-based drilling fluid
EP0627481A1 (en) * 1993-06-01 1994-12-07 Albemarle Corporation Invert drilling fluids
WO1995009215A1 (en) * 1993-09-29 1995-04-06 Mobil Oil Corporation Non toxic, biodegradable well fluids
WO1995021226A1 (en) * 1994-02-02 1995-08-10 Chevron Chemical Company Drilling fluids comprising mostly linear olefins

Also Published As

Publication number Publication date
GB9425850D0 (en) 1995-07-19
GB2287266A (en) 1995-09-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000830