IT1013232B - SUB-SURFACE SAFETY VALVE - Google Patents

SUB-SURFACE SAFETY VALVE

Info

Publication number
IT1013232B
IT1013232B IT5119874A IT5119874A IT1013232B IT 1013232 B IT1013232 B IT 1013232B IT 5119874 A IT5119874 A IT 5119874A IT 5119874 A IT5119874 A IT 5119874A IT 1013232 B IT1013232 B IT 1013232B
Authority
IT
Italy
Prior art keywords
sub
safety valve
surface safety
valve
safety
Prior art date
Application number
IT5119874A
Other languages
Italian (it)
Original Assignee
Baker Oil Tools Inc
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 Baker Oil Tools Inc filed Critical Baker Oil Tools Inc
Application granted granted Critical
Publication of IT1013232B publication Critical patent/IT1013232B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B34/101—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for equalizing fluid pressure above and below the valve
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow
IT5119874A 1973-06-15 1974-05-24 SUB-SURFACE SAFETY VALVE IT1013232B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US37035473 US3868995A (en) 1973-06-15 1973-06-15 Sub-surface safety valve

Publications (1)

Publication Number Publication Date
IT1013232B true IT1013232B (en) 1977-03-30

Family

ID=23459272

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5119874A IT1013232B (en) 1973-06-15 1974-05-24 SUB-SURFACE SAFETY VALVE

Country Status (10)

Country Link
US (1) US3868995A (en)
JP (1) JPS5442323B2 (en)
CA (1) CA997676A (en)
DE (2) DE2462473C3 (en)
FR (1) FR2233547A1 (en)
GB (2) GB1461641A (en)
IT (1) IT1013232B (en)
NO (2) NO140115C (en)
RO (1) RO71655A (en)
SU (1) SU641876A3 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971438A (en) * 1975-03-03 1976-07-27 Baker Oil Tools, Inc. Wireline safety valve with split ball
US4036296A (en) * 1975-05-23 1977-07-19 Hydril Company Subsurface well apparatus
US3993136A (en) * 1975-08-25 1976-11-23 Hydril Company Apparatus for operating a closure element of a subsurface safety valve and method of using same
US4062406A (en) * 1976-10-15 1977-12-13 Baker International Corporation Valve and lubricator apparatus
US4149698A (en) * 1977-04-13 1979-04-17 Otis Engineering Corporation Surface controlled subsurface safety valve
US4144937A (en) * 1977-12-19 1979-03-20 Halliburton Company Valve closing method and apparatus for use with an oil well valve
US4214606A (en) * 1978-05-08 1980-07-29 Otis Engineering Corporation Subsurface safety valve
US4340088A (en) * 1980-06-09 1982-07-20 Daniel Industries, Inc. Pressure balanced safety valve for wells and flow lines
US4476933A (en) * 1983-04-11 1984-10-16 Baker Oil Tools, Inc. Lubricator valve apparatus
US4552219A (en) * 1983-10-05 1985-11-12 Hydril Company Subsurface safety valve
US4706933A (en) * 1985-09-27 1987-11-17 Sukup Richard A Oil and gas well safety valve
US5052657A (en) * 1990-11-02 1991-10-01 Shaw Industries, Ltd. Ball valve
GB9117119D0 (en) * 1991-08-08 1991-09-25 Exploration And Production Nor Tubing test valve
WO1998055732A1 (en) * 1997-06-03 1998-12-10 Camco International Inc. Pressure equalizing safety valve for subterranean wells
US6283217B1 (en) 1998-08-06 2001-09-04 Schlumberger Technology Corp. Axial equalizing valve
US6296061B1 (en) 1998-12-22 2001-10-02 Camco International Inc. Pilot-operated pressure-equalizing mechanism for subsurface valve
GB2368079B (en) * 2000-10-18 2005-07-27 Renovus Ltd Well control
US8875810B2 (en) * 2006-03-02 2014-11-04 Baker Hughes Incorporated Hole enlargement drilling device and methods for using same
US8225871B2 (en) * 2006-11-09 2012-07-24 Baker Hughes Incorporated Bidirectional sealing mechanically shifted ball valve for downhole use
US8534361B2 (en) * 2009-10-07 2013-09-17 Baker Hughes Incorporated Multi-stage pressure equalization valve assembly for subterranean valves
US8336628B2 (en) * 2009-10-20 2012-12-25 Baker Hughes Incorporated Pressure equalizing a ball valve through an upper seal bypass
CN102877814A (en) * 2012-10-18 2013-01-16 蒙善祥 Composite sealing plug valve with automatic control and manual control double control functions
AU2013378758B2 (en) * 2013-02-25 2016-12-15 Halliburton Energy Services, Inc. Pressure equalization for dual seat ball valve
EP3074588A4 (en) * 2013-06-21 2018-01-03 Tam International Inc. Hydraulic anchor for downhole packer
CN105178912B (en) * 2014-06-18 2018-03-30 中国石油化工股份有限公司 A kind of drilling tool by-passing valve
GB2543077B (en) * 2015-10-08 2021-12-22 Welleng Science & Tech Ltd Downhole valve
RU2704161C1 (en) * 2018-11-29 2019-10-24 Общество с ограниченной ответственностью "Газпром 335" Upper isolating valve
AU2019466462A1 (en) * 2019-09-17 2022-02-03 Halliburton Energy Services, Inc. Double acting boost arrangement
US20230142178A1 (en) * 2021-11-06 2023-05-11 Danny T. Williams Valve apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310114A (en) * 1964-07-01 1967-03-21 Otis Eng Co Pressure operated safety valve
US3543793A (en) * 1965-01-29 1970-12-01 Otis Eng Corp Well tools
US3703193A (en) * 1970-12-28 1972-11-21 Otis Eng Corp Valves
US3741249A (en) * 1971-03-22 1973-06-26 Baker Oil Tools Inc Ball valve with resilient seal

Also Published As

Publication number Publication date
NO140115B (en) 1979-03-26
NO784088L (en) 1974-12-12
DE2462473B2 (en) 1980-03-06
JPS5016923A (en) 1975-02-22
DE2428804A1 (en) 1975-01-09
GB1461641A (en) 1977-01-13
JPS5442323B2 (en) 1979-12-13
US3868995A (en) 1975-03-04
DE2462473C3 (en) 1980-10-30
NO740978L (en) 1975-01-13
NO140115C (en) 1979-07-04
DE2428804C3 (en) 1979-04-12
GB1461642A (en) 1977-01-13
CA997676A (en) 1976-09-28
DE2462473A1 (en) 1977-05-12
DE2428804B2 (en) 1978-08-17
FR2233547A1 (en) 1975-01-10
RO71655A (en) 1982-05-10
SU641876A3 (en) 1979-01-05

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