GB1199086A - Retrivable Well Packer - Google Patents

Retrivable Well Packer

Info

Publication number
GB1199086A
GB1199086A GB5120668A GB5120668A GB1199086A GB 1199086 A GB1199086 A GB 1199086A GB 5120668 A GB5120668 A GB 5120668A GB 5120668 A GB5120668 A GB 5120668A GB 1199086 A GB1199086 A GB 1199086A
Authority
GB
United Kingdom
Prior art keywords
mandrel
pressure
piston
tubing
packing means
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
GB5120668A
Inventor
David E Young
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.)
Schlumberger Technology Corp
Original Assignee
Schlumberger Technology Corp
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 Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Priority to GB5120668A priority Critical patent/GB1199086A/en
Publication of GB1199086A publication Critical patent/GB1199086A/en
Expired legal-status Critical Current

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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1291—Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1294—Packers; Plugs with mechanical slips for hooking into the casing characterised by a valve, e.g. a by-pass valve

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)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

1,199,086. Well packers. SCHLUMBERGER TECHNOLOGY CORP. 29 Oct., 1968, No. 51206/68. Heading E1F. A well packer comprises a mandrel 11, a hollow tubular body 23 slidably positioned on the mandrel, packing means 28, anchor means (36) below the packing means, fluid by-pass passage 72 extending along the mandrel and communicating with the well bore above, at 74, and below the packing means, valve means 79 on the mandrel and engageable with a valve seat 75 on the body 23 to close the passage, a piston 109 connected to the mandrel and operative in response to the tubing pressure - i.e. the pressure below the packing means - exceeding the annulus pressure - i.e. the pressure above the packing means -to exert a force on the mandrel to oppose the force thereon of this pressure difference, and a piston 112 operative in response to the annulus pressure exceeding the tubing pressure to exert force on the mandrel to counterbalance the force thereon exerted by the pressure difference. The piston 109 is slidable within the body 23 and has the annulus pressure applied to the bottom surface through openings 74 in the body, and the tubing pressure applied to the top surface thereof through bypass passage 72, passageway 101 and bore 116. The piston 112 has the annulus pressure applied to the top surface thereof and the tubing pressure applied to the bottom surface. Accordingly when the annulus pressure exceeds the tubing pressure, piston 112 bears against piston 109 or as shown, or alternatively against a shoulder on the mandrel with the effective difference D in area between the two pistons being chosen to be equal to .the effective horizontal cross-sectional area of the mandrel on which the annulus pressure acts so that there is no net force on the mandrel. Above piston 112 slips are provided and are moved outwardly to engage the casing P by another double piston when the tubing pressure through passageway 101 exceeds the annulus pressure. Beneath the packer the tubular body 23 is jayed to the mandrel and has drag blocks which on un-jaying prevents the bottom portion moving downwardly with the mandrel so that the anchor means (36) can be set, and the tubing string weight applied to the packing means to set the packer.
GB5120668A 1968-10-29 1968-10-29 Retrivable Well Packer Expired GB1199086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5120668A GB1199086A (en) 1968-10-29 1968-10-29 Retrivable Well Packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5120668A GB1199086A (en) 1968-10-29 1968-10-29 Retrivable Well Packer

Publications (1)

Publication Number Publication Date
GB1199086A true GB1199086A (en) 1970-07-15

Family

ID=10459066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5120668A Expired GB1199086A (en) 1968-10-29 1968-10-29 Retrivable Well Packer

Country Status (1)

Country Link
GB (1) GB1199086A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292400A (en) * 1994-08-18 1996-02-21 Nodeco Ltd Downhole packer
CN102200001A (en) * 2011-05-12 2011-09-28 中国石油化工集团公司 Bidirectional anchor packer
CN106761536A (en) * 2016-12-10 2017-05-31 牡丹江市金环石化设备有限公司 A kind of pumpingh well downhole hardware
CN107420031A (en) * 2017-05-11 2017-12-01 能诚集团有限公司 Churn drilling tools and the percussive drill with the churn drilling tools
CN110836104A (en) * 2019-11-28 2020-02-25 中国石油集团川庆钻探工程有限公司 Bidirectional slip hydraulic permanent packer
CN110905439A (en) * 2019-11-28 2020-03-24 中国石油集团川庆钻探工程有限公司 Integrated downhole operation tool based on bidirectional slip hydraulic permanent packer
CN112983340A (en) * 2019-12-13 2021-06-18 中国石油化工股份有限公司 Packer for ultra-deep well
CN114934759A (en) * 2022-06-01 2022-08-23 天津东拓油田技术服务有限公司 N-type removable inner bridge plug of oil pipe
CN117211727A (en) * 2023-11-06 2023-12-12 中石化西南石油工程有限公司 Double-packer annulus pressure balancing device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292400A (en) * 1994-08-18 1996-02-21 Nodeco Ltd Downhole packer
CN102200001A (en) * 2011-05-12 2011-09-28 中国石油化工集团公司 Bidirectional anchor packer
CN102200001B (en) * 2011-05-12 2014-09-17 中国石油化工集团公司 Bidirectional anchor packer
CN106761536A (en) * 2016-12-10 2017-05-31 牡丹江市金环石化设备有限公司 A kind of pumpingh well downhole hardware
CN106761536B (en) * 2016-12-10 2018-10-23 牡丹江市金环石化设备有限公司 A kind of pumpingh well downhole hardware
CN107420031A (en) * 2017-05-11 2017-12-01 能诚集团有限公司 Churn drilling tools and the percussive drill with the churn drilling tools
CN110836104A (en) * 2019-11-28 2020-02-25 中国石油集团川庆钻探工程有限公司 Bidirectional slip hydraulic permanent packer
CN110905439A (en) * 2019-11-28 2020-03-24 中国石油集团川庆钻探工程有限公司 Integrated downhole operation tool based on bidirectional slip hydraulic permanent packer
CN110836104B (en) * 2019-11-28 2021-09-24 中国石油集团川庆钻探工程有限公司 Bidirectional slip hydraulic permanent packer
CN110905439B (en) * 2019-11-28 2022-03-01 中国石油集团川庆钻探工程有限公司 Integrated downhole operation tool based on bidirectional slip hydraulic permanent packer
CN112983340A (en) * 2019-12-13 2021-06-18 中国石油化工股份有限公司 Packer for ultra-deep well
CN114934759A (en) * 2022-06-01 2022-08-23 天津东拓油田技术服务有限公司 N-type removable inner bridge plug of oil pipe
CN114934759B (en) * 2022-06-01 2024-05-14 天津东拓油田技术服务有限公司 N-type removable oil pipe inner bridge plug
CN117211727A (en) * 2023-11-06 2023-12-12 中石化西南石油工程有限公司 Double-packer annulus pressure balancing device
CN117211727B (en) * 2023-11-06 2024-02-27 中石化西南石油工程有限公司 Double-packer annulus pressure balancing device

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Legal Events

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