GB1422393A - Subsurface well apparatus - Google Patents

Subsurface well apparatus

Info

Publication number
GB1422393A
GB1422393A GB65673A GB65673A GB1422393A GB 1422393 A GB1422393 A GB 1422393A GB 65673 A GB65673 A GB 65673A GB 65673 A GB65673 A GB 65673A GB 1422393 A GB1422393 A GB 1422393A
Authority
GB
United Kingdom
Prior art keywords
bore
line
valve
piston
sleeve
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
Application number
GB65673A
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.)
Hydril LLC
Original Assignee
Hydril LLC
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 Hydril LLC filed Critical Hydril LLC
Priority to GB65673A priority Critical patent/GB1422393A/en
Publication of GB1422393A publication Critical patent/GB1422393A/en
Expired legal-status Critical Current

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
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • 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
    • E21B34/105—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid
    • E21B34/106—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid the retrievable element being a secondary control fluid actuated valve landed into the bore of a first inoperative control fluid actuated 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

Abstract

1422393 Wells &c HYDRIL CO 4 Jan 1973 656/73 Heading E1F A subsurface well apparatus for connection in a production tubing to control flow of fluid through the tubing bore has a housing 130, Fig. 1c, having a bore 140 therethrough communicating with the tubing bore, and a movable control member 163, Fig. 1B, 164 disposed in the housing bore for cooperating with a flow control device 185, Fig. 4B, introduced into the housing bore through the production tubing bore, to move the device between an open condition and a closed flowblocking condition. Flow of liquid is normally controlled by means of a ball valve 150, Fig. 1C, rotatable about pins 167f fixed to -the housing, the valve having a slotted connection with the pins such that axial movement causes rotation. The ball valve is biassed into the closed condition by means of a spring-biased sleeve 166 and is rotated into the open condition by the application of pressurised control fluid via line 122, Fig. 1B, on a piston 163 which in turn acts via a sleeve 164 on the valve seat ring 155, a line 123 being vented. In the event of a malfunction of this ball valve 150 the ball valve is locked open by venting of the line 122 and pressurisation of the line 123 to operate a mechanism 170, 171, Fig. 1B, latching the sleeve 164, and the flow control device is run into the bore 140 by means of a tool (195), Fig. 4A (not shown), which is pumped down the bore, the ball valve 187 of the device being temporarily held closed by a shear pin (295c). When the device engages a ring 175 fluid pressure forces its frame 286a and mover sleeve 288 downwardly relative to a sleeve 290, so that dogs 293 on the device engage a recess 263 in the piston 163. A pin (295) between the tool (195) and the device 185 is sheared, and venting of line 123 causes spring 163a to urge the piston 163 upwardly to move the device so that dogs (294) thereon engage a recess (140c). In operation, the device 185 is controlled by piston 163 through a pin-and-slot connection, pressurised fluid in line 123 moving the piston downwardly to open the valve 187. Reduction of pressure in the line 123 allows spring 163a to close the valve 187. If the device 185 does not function the valve 187 is rotated to the open position and the device is withdrawn by a tool (196), Fig. 7A (not shown).
GB65673A 1973-01-04 1973-01-04 Subsurface well apparatus Expired GB1422393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB65673A GB1422393A (en) 1973-01-04 1973-01-04 Subsurface well apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB65673A GB1422393A (en) 1973-01-04 1973-01-04 Subsurface well apparatus

Publications (1)

Publication Number Publication Date
GB1422393A true GB1422393A (en) 1976-01-28

Family

ID=9708197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB65673A Expired GB1422393A (en) 1973-01-04 1973-01-04 Subsurface well apparatus

Country Status (1)

Country Link
GB (1) GB1422393A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2543077A (en) * 2015-10-08 2017-04-12 Welleng Science & Tech Ltd Downhole valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2543077A (en) * 2015-10-08 2017-04-12 Welleng Science & Tech Ltd Downhole valve
WO2017060707A1 (en) * 2015-10-08 2017-04-13 Welleng Science And Technology Ltd Downhole valve
US10895127B2 (en) 2015-10-08 2021-01-19 Welleng Science And Technology Ltd. Downhole valve
GB2543077B (en) * 2015-10-08 2021-12-22 Welleng Science & Tech Ltd Downhole valve

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee