CN105840112A - Surface casing well cementing assembly - Google Patents

Surface casing well cementing assembly Download PDF

Info

Publication number
CN105840112A
CN105840112A CN201610171821.0A CN201610171821A CN105840112A CN 105840112 A CN105840112 A CN 105840112A CN 201610171821 A CN201610171821 A CN 201610171821A CN 105840112 A CN105840112 A CN 105840112A
Authority
CN
China
Prior art keywords
casing
sleeve pipe
hand member
right end
joint
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.)
Pending
Application number
CN201610171821.0A
Other languages
Chinese (zh)
Inventor
张永
艾教银
吴岩柱
王征
刘冬雪
向庭庆
李永双
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.)
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
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 Daqing Oilfield Co Ltd, China Petroleum and Natural Gas Co Ltd filed Critical Daqing Oilfield Co Ltd
Priority to CN201610171821.0A priority Critical patent/CN105840112A/en
Publication of CN105840112A publication Critical patent/CN105840112A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/08Casing joints

Abstract

A surface casing well cementing assembly mainly solves the problems in an existing oil field shallow gas zone inclination well repairing process that a surface casing and an oil string casing cannot be connected; the features are that a casing stop ring (2) is fixed outside an upper joint (1) through an annular key (5); the right end of the casing stop ring (2) is fixedly provided with a casing buckle head (6); the right end of the casing buckle head (6) is connected with a lower joint (7); the right end of the lower joint (7) is provided with an inner thread matched with the surface casing; the right end of the upper joint (1) is connected with an inner joint (3); the inner joint (3) is arranged in the casing buckle head (6); the right end of the inner joint (3) is provided with an inner thread matched with the oil string casing. The surface casing well cementing assembly can connect the surface casing with the oil string casing, so the oil field shallow gas zone inclination well repairing work is convenient.

Description

Surface pipe well cementation assembly
Technical field
The present invention relates to oilfield, the surface pipe well cementation assembly of a kind of oil well.
Background technology
The slant well in Qian Qi district, oil field is when well workover at present, and surface pipe and production string connect inconvenience, it is impossible to construction.
Summary of the invention
In order to overcome Qian Qi district, the existing oil field slant well deficiency that surface pipe and production string cannot connect when well workover, the present invention provides a kind of surface pipe well cementation assembly, this surface pipe well cementation assembly achieves surface pipe and production string connects, and the slant well workover operation construction in Shi Qianqi district is convenient.
The technical scheme is that a kind of surface pipe well cementation assembly, including top connection, lower contact, described top connection is outside is fixed with sleeve pipe baffle ring by annular key, sleeve pipe baffle ring right-hand member is fixed with sleeve pipe discount, sleeve pipe discount right-hand member connects lower contact, and lower contact right-hand member is provided with the female thread matched with surface pipe;Described top connection right-hand member connects has nipple, nipple to be positioned at inside sleeve pipe discount, and nipple right-hand member is provided with the female thread matched with production string.
It is provided with sealing gasket between described top connection and sleeve pipe baffle ring.
There is advantages that owing to taking such scheme, this device is connected with Φ 139.7 sleeve pipe by top connection, and respectively by lower contact is connected with surface pipe, nipple is connected with production string, thus realize the connection between surface pipe and production string and consolidating superficial resistance layer, the slant well workover operation construction in Shi Qianqi district is convenient, improves working performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
1-top connection in figure, 2-sleeve pipe baffle ring, 3-nipple, 4-sealing gasket, 5-annular key, 6-sleeve pipe discount, 7-lower contact.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of surface pipe well cementation assembly, including top connection 1, lower contact 7, top connection 1 left end is provided with the female thread matched with Φ 139.7 sleeve pipe, can be connected with production string.It is cased with sleeve pipe baffle ring 2 at described top connection 1 outer steps, and sleeve pipe baffle ring 2 right-hand member is spacing by annular key 5, and when surface pipe and production string are dismantled, annular key 5 is also prevented from two kinds of sleeve pipes and rotates and the generation of back-off simultaneously, facilitates this instrument and surface pipe and the connection of Φ 139.7 sleeve pipe.Being provided with sealing gasket 4 between top connection 1 and sleeve pipe baffle ring 2, it is possible to achieve the sealing between two kinds of gauge cannula, when preventing consolidating superficial resistance layer, liquid flows out between two kinds of sleeve pipes.Sleeve pipe baffle ring 2 right-hand member is fixed with sleeve pipe discount 6, and sleeve pipe discount 6 right-hand member connects lower contact 7, and lower contact 7 right-hand member is provided with the female thread matched with surface pipe, can be connected with surface pipe.Described top connection 1 right-hand member connects has nipple 3, nipple 3 to be positioned at sleeve pipe discount 6 inside, and nipple 3 right-hand member is provided with the female thread matched with production string, can connect production string.
In this surface pipe well cementation assembly, lower contact 7 can be connected with surface pipe, top connection 1 left end can be connected with Φ 139.7 sleeve pipe, nipple 3 can be connected with production string (Φ 139.7), it is achieved thereby that the connection between surface pipe and production string, Φ 139.7 sleeve pipe.

Claims (2)

1. a surface pipe well cementation assembly, including top connection (1), lower contact (7), it is characterized in that: described top connection (1) is outside is fixed with sleeve pipe baffle ring (2) by annular key (5), sleeve pipe baffle ring (2) right-hand member is fixed with sleeve pipe discount (6), sleeve pipe discount (6) right-hand member connects lower contact (7), and lower contact (7) right-hand member is provided with the female thread matched with surface pipe;Described top connection (1) right-hand member connects has nipple (3), nipple (3) to be positioned at sleeve pipe discount (6) inside, and nipple (3) right-hand member is provided with the female thread matched with production string.
Surface pipe the most according to claim 1 well cementation assembly, it is characterised in that: it is provided with sealing gasket (4) between described top connection (1) and sleeve pipe baffle ring (2).
CN201610171821.0A 2016-03-24 2016-03-24 Surface casing well cementing assembly Pending CN105840112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610171821.0A CN105840112A (en) 2016-03-24 2016-03-24 Surface casing well cementing assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610171821.0A CN105840112A (en) 2016-03-24 2016-03-24 Surface casing well cementing assembly

Publications (1)

Publication Number Publication Date
CN105840112A true CN105840112A (en) 2016-08-10

Family

ID=56583167

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610171821.0A Pending CN105840112A (en) 2016-03-24 2016-03-24 Surface casing well cementing assembly

Country Status (1)

Country Link
CN (1) CN105840112A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106761467A (en) * 2017-03-15 2017-05-31 中国海洋石油总公司 A kind of integrated joint and the deep water cementing method implemented using the integrated joint

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193920Y (en) * 1993-09-11 1995-04-05 田炳周 Simple casing joint
CN2835527Y (en) * 2005-07-22 2006-11-08 新疆石油管理局钻井工艺研究院 Thermal recovery casing head
WO2011044691A1 (en) * 2009-10-12 2011-04-21 Kai Services Inc. Pipe for the technical casing of a geological prospecting drilling rig
CN202215164U (en) * 2011-07-01 2012-05-09 沧州市圣达利机械制造有限公司 Novel petroleum surface casing
CN203515362U (en) * 2013-05-27 2014-04-02 中宏兴石油设备(北京)有限公司 Coupling for petroleum casing pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2193920Y (en) * 1993-09-11 1995-04-05 田炳周 Simple casing joint
CN2835527Y (en) * 2005-07-22 2006-11-08 新疆石油管理局钻井工艺研究院 Thermal recovery casing head
WO2011044691A1 (en) * 2009-10-12 2011-04-21 Kai Services Inc. Pipe for the technical casing of a geological prospecting drilling rig
CN202215164U (en) * 2011-07-01 2012-05-09 沧州市圣达利机械制造有限公司 Novel petroleum surface casing
CN203515362U (en) * 2013-05-27 2014-04-02 中宏兴石油设备(北京)有限公司 Coupling for petroleum casing pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106761467A (en) * 2017-03-15 2017-05-31 中国海洋石油总公司 A kind of integrated joint and the deep water cementing method implemented using the integrated joint
CN106761467B (en) * 2017-03-15 2018-12-25 中国海洋石油集团有限公司 A kind of integration connector and the deep water cementing method using integration connector implementation

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PB01 Publication
C10 Entry into substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160810