CN105840112A - surface casing cementing assembly - Google Patents
surface casing cementing assembly Download PDFInfo
- 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
- sleeve pipe
- sleeve
- casing
- right end
- hand member
- 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
Links
- 210000002445 nipple Anatomy 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A surface casing well cementation assembly mainly solves the problem that a surface casing and an oil layer casing cannot be connected when a conventional oil field shallow gas area inclined well is repaired. The method is characterized in that: a sleeve retaining ring (2) is fixed on the outer portion of the upper connector (1) through an annular key (5), a sleeve buckle head (6) is fixed at the right end of the sleeve retaining ring (2), a lower connector (7) is connected at the right end of the sleeve buckle head (6), and an internal thread matched with a surface sleeve is arranged at the right end of the lower connector (7); the right end of the upper joint (1) is connected with an inner joint (3), the inner joint (3) is located inside the casing pipe buckle (6), and the right end of the inner joint (3) is provided with an internal thread matched with an oil casing pipe. The surface casing well cementation assembly realizes the connection of the surface casing and the oil layer casing, and facilitates the construction of the inclined shaft well repair operation in the shallow gas area.
Description
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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171821.0A CN105840112A (en) | 2016-03-24 | 2016-03-24 | surface casing 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 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 cementing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840112A (en) |
Cited By (1)
| 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)
| 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 |
-
2016
- 2016-03-24 CN CN201610171821.0A patent/CN105840112A/en active Pending
Patent Citations (5)
| 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)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |