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WO2001012949A3 - Downhole flapper valve assembly - Google Patents

Downhole flapper valve assembly Download PDF

Info

Publication number
WO2001012949A3
WO2001012949A3 PCT/GB2000/003200 GB0003200W WO0112949A3 WO 2001012949 A3 WO2001012949 A3 WO 2001012949A3 GB 0003200 W GB0003200 W GB 0003200W WO 0112949 A3 WO0112949 A3 WO 0112949A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
sleeves
flap
housing
recess
Prior art date
Application number
PCT/GB2000/003200
Other languages
French (fr)
Other versions
WO2001012949A2 (en
Inventor
Clive John French
Original Assignee
French Oilfield Services Ltd
Clive John French
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
Application filed by French Oilfield Services Ltd, Clive John French filed Critical French Oilfield Services Ltd
Priority to AU67078/00A priority Critical patent/AU6707800A/en
Priority to EP00954718A priority patent/EP1144803A3/en
Publication of WO2001012949A2 publication Critical patent/WO2001012949A2/en
Publication of WO2001012949A3 publication Critical patent/WO2001012949A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Pipe Accessories (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

A tool assembly is disclosed which, in a preferred embodiment, is an isolation valve (10). The valve (10) is configurable in closed and open configurations and allows, for example, pressure testing of tubing above the valve (10) and isolation of upper and lower sections of the tubing. The valve (10) generally includes a concave valve flap (12), tubular housing (14), upper sleeve (16), annular seal assembly (18), first and second lower sleeves (20, 22) and a lower sleeve locking assembly (24). The valve flap (12) is movable from a closed configuration, where it lies substantially perpendicular to the housing (14), to an open configuration, where it lies in a recess (84) in the housing (14). This is achieved by supplying hydraulic control fluid through control conduits (17, 19) to move the sleeves (16, 20, 22) and displace the flap (12) into the recess (84), which is uncovered by the lower sleeves (20, 22).
PCT/GB2000/003200 1999-08-17 2000-08-17 Downhole flapper valve assembly WO2001012949A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU67078/00A AU6707800A (en) 1999-08-17 2000-08-17 Tool assembly
EP00954718A EP1144803A3 (en) 1999-08-17 2000-08-17 Downhole flapper valve assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9919270.0 1999-08-17
GBGB9919270.0A GB9919270D0 (en) 1999-08-17 1999-08-17 Tool assembly

Publications (2)

Publication Number Publication Date
WO2001012949A2 WO2001012949A2 (en) 2001-02-22
WO2001012949A3 true WO2001012949A3 (en) 2001-08-30

Family

ID=10859177

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/003200 WO2001012949A2 (en) 1999-08-17 2000-08-17 Downhole flapper valve assembly

Country Status (4)

Country Link
EP (1) EP1144803A3 (en)
AU (1) AU6707800A (en)
GB (1) GB9919270D0 (en)
WO (1) WO2001012949A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6328109B1 (en) * 1999-11-16 2001-12-11 Schlumberger Technology Corp. Downhole valve
US7537061B2 (en) 2006-06-13 2009-05-26 Precision Energy Services, Inc. System and method for releasing and retrieving memory tool with wireline in well pipe
US10794143B2 (en) * 2017-10-06 2020-10-06 Baker Hughes, A Ge Company, Llc Sub-surface safety valve flapper sleeve
CN112065324B (en) * 2019-06-10 2024-08-06 中国石油化工股份有限公司 Leak-proof valve well completion tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696868A (en) * 1970-12-18 1972-10-10 Otis Eng Corp Well flow control valves and well systems utilizing the same
US4149698A (en) * 1977-04-13 1979-04-17 Otis Engineering Corporation Surface controlled subsurface safety valve
US4531587A (en) * 1984-02-22 1985-07-30 Baker Oil Tools, Inc. Downhole flapper valve
WO1997047852A1 (en) * 1996-06-13 1997-12-18 Pes, Inc. Downhole lubricator valve
EP0915230A2 (en) * 1997-11-10 1999-05-12 Halliburton Energy Services, Inc. Safety valve utilizing an isolation valve
US6003605A (en) * 1997-12-01 1999-12-21 Halliburton Enery Services, Inc. Balanced line tubing retrievable safety valve
WO2000029710A2 (en) * 1998-11-17 2000-05-25 Camco International Inc. Wellbore flow control device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9913557D0 (en) 1999-06-10 1999-08-11 French Oilfield Services Ltd Hydraulic control assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696868A (en) * 1970-12-18 1972-10-10 Otis Eng Corp Well flow control valves and well systems utilizing the same
US4149698A (en) * 1977-04-13 1979-04-17 Otis Engineering Corporation Surface controlled subsurface safety valve
US4531587A (en) * 1984-02-22 1985-07-30 Baker Oil Tools, Inc. Downhole flapper valve
WO1997047852A1 (en) * 1996-06-13 1997-12-18 Pes, Inc. Downhole lubricator valve
EP0915230A2 (en) * 1997-11-10 1999-05-12 Halliburton Energy Services, Inc. Safety valve utilizing an isolation valve
US6003605A (en) * 1997-12-01 1999-12-21 Halliburton Enery Services, Inc. Balanced line tubing retrievable safety valve
WO2000029710A2 (en) * 1998-11-17 2000-05-25 Camco International Inc. Wellbore flow control device

Also Published As

Publication number Publication date
GB9919270D0 (en) 1999-10-20
WO2001012949A2 (en) 2001-02-22
EP1144803A3 (en) 2002-09-11
EP1144803A2 (en) 2001-10-17
AU6707800A (en) 2001-03-13

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