CN201857934U - Special sealing intubation tube for sealing packer - Google Patents
Special sealing intubation tube for sealing packer Download PDFInfo
- Publication number
- CN201857934U CN201857934U CN2010206053419U CN201020605341U CN201857934U CN 201857934 U CN201857934 U CN 201857934U CN 2010206053419 U CN2010206053419 U CN 2010206053419U CN 201020605341 U CN201020605341 U CN 201020605341U CN 201857934 U CN201857934 U CN 201857934U
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- Prior art keywords
- sealing
- packer
- slip spider
- wall
- tube
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- 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 - Lifetime
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Abstract
The utility model discloses a special sealing intubation tube for a sealing packer, wherein the special sealing intubation tube is applied to an intubation tube type packer at the oil downhole and can realize the sealing of an oil string and a packer. The lower end of an upper joint is connected with a slip seat. A slip is arranged on the outer wall of the slip seat. The lower end of the slip is arranged at the lower part of the upper joint. A lantern ring is arranged on the outer wall of the slip seat. A shear pin is fixed in a screw hole of the lantern ring. The lower end of the slip seat is connected with a central tube. A first group of sealing packing, a support ring, a second group of sealing packing and a compression ring are sequentially sleeved on the outer wall of the central tube from top to bottom. The lower end of the connecting tube is connected with a connecting tube by external thread. The lower end of the connecting tube is connected with a lower joint by external thread. The special sealing intubation tube for the sealing packer has the effects that after the setting of the intubation tube type packer, the special sealing intubation tube is inserted in, and the string is pressed down, so that the sealing intubation tube is inserted into the intubation tube type packer and matched with the intubation tube type packer to realize the annulus of an oil jacket of the packer. The special sealing intubation tube has the characteristics of simple structure, effective sealing, reliable unsealing and the like.
Description
Technical field
The utility model relates to the oilfield exploitation technical field, is a kind of special use sealing intubate that is used to seal the cannula type packer, and intubate and packer fitted seal are separated the oil jacket space, realize the sealing of tubing string and packer.
Background technology
At present, packer is the important downhole tool of oilfield exploitation, and the oil field has the bearing capacity height with the cannula type packer, seals advantages such as reliable.But form and packer that the sealing intubate of cannula type packer adopts the track nail to cooperate with rail groove are realized fixing, and the deblocking mode is for carrying deblocking on the rotation tubing string.Be fixed on the down-hole for a long time, because tension and compression concentrate on track nail and the rail groove, cause the distortion of track nail, the rail groove inside of nipping though moment of torsion can be passed to the down-hole from well head, affacts on the intubate, and intubate can't be rotated, therefore just can't release.Moreover, because hydraulic tongs has the peak torque upper limit and oil pipe to bear torque limited, can't depend merely on the increase moment of torsion and come the deblocking intubate.
The cannula type packer needs special-purpose sealing intubate to be used with it, and guarantees that the sealing intubate is connected with oil pipe.
The utility model content
The purpose of this utility model is: a kind of special use sealing intubate that is used for the seal pack device is provided, is used for docking with the cannula type packer sealing, for the cannula type packer provides reliable sealing tool.
The technical solution adopted in the utility model is: be used for the special use sealing intubate of seal pack device, mainly be made up of top connection, slip spider, slips, the collar, shear pin, central tube, sealed packing, support ring, pressure ring, tube connector and lower contact.There is internal thread the upper end of top connection, can be connected the lower end of tubing string.It is characterized in that: there is internal thread the lower end of top connection, is connected with a slip spider cylindraceous at the lower end of top connection internal thread.Be fixed with horizontal holding screw in top connection and slip spider junction, top connection and slip spider can not released.Between top connection lower end inwall and slip spider outer wall annular space is arranged, on the slip spider outer wall and in the annular space cover slips is being arranged, the lower end of slips is a splitted structure, and the lower end of slips is in the top connection bottom.Be with the collar on the lower end of slips and the outer wall at slip spider, the collar is circular, is evenly distributed with screw on the collar, and shear pin is fixed in the screw of the collar, and the inner of shear pin is embedded in the fixing hole on the slip spider outer wall.In the slip spider lower end external screw thread is arranged, slip spider lower end external screw thread is connected with central tube, is with first group of sealed packing, support ring, second group of sealed packing and pressure ring on the outer wall of central tube from top to bottom successively; In the central tube lower end external screw thread is arranged, central tube lower end external screw thread is connected with tube connector.The upper surface of tube connector compresses pressure ring; On the outer wall of tube connector, be with first group of sealed packing, support ring, second group of sealed packing and pressure ring from top to bottom successively; In the tube connector lower end external screw thread is arranged, tube connector lower end external screw thread is connected with lower contact.The upper surface of lower contact compresses pressure ring.
In order to guarantee accurately to insert packer inside, there is scalene cone (guide shoe) lower end of lower contact.
Summary is used for the operating principle of the special use sealing intubate of seal pack device.Consult Fig. 1.Upper end in the sealing intubate has 2
7/
8" external upset tubing thread is convenient to be connected with tubing string, and there is guide shoe the lower end, guarantees to seal intubate and inserts the cannula type packer smoothly, and there is the center liquid pass hole inside, guarantees the producing well ordinary production.The sealing cannula design has the slips 3 and the collar 4, and relative with the packer sealing position have two groups of sealed packing groups, guarantees that sealing is reliable between packer and the sealing intubate, effective packing oil jacket annular space.
Be with slips 3 on the slip spider 2, completion is the pressuring oil pipe post at present, slips 3 and the interior rectangle threaded engagement of cannula type packer, guarantee that intubate realizes effectively sealing in packer, when needing deblocking, just changeing tubing string, on carry deblocking, case of emergency adopt emergent discharge on put forward the deblocking mode.
The collar 4 is installed below slips 3, plays the effect of supporting slip 3, the collar 4 usefulness shear pins 5 location.
During use, the utility model top is connected with oil pipe, be lowered to the packer setting position after, press down tubing string, slips 3 promptly with the cannula type packer in the rectangle threaded engagement, guarantee that intubate realizes effectively sealing in packer, when needing deblocking, just changeing tubing string, on mention the sealing intubate, realize deblocking, under the case of emergency, put forward the deblocking mode in the emergent release of employing and realize deblocking.
The beneficial effects of the utility model: the utility model is used for the special use sealing intubate of seal pack device, and the intubate class completion tool that uses when being applied to completion behind the cannula type packer setting cooperates the effect of realization packing oil jacket annular space with packer.2 of top connection " be convenient to be connected with oil pipe, and the lower end guide shoe guarantees to seal intubate and inserts the cannula type packer smoothly, realizes packing oil jacket annular space, and the inside center liquid pass hole guarantees the producing well ordinary production by external upset tubing thread.This special use sealing intubate has characteristics such as simple to operate, that sealing is effective, deblocking is reliable.
Description of drawings
Fig. 1 is the special use sealing cannula structures generalized section that the utility model is used for the seal pack device.
Among the figure, 1. top connection, 2. slip spider, 3. slips, the 4. collar, 5. shear pin, 6. central tube, 7. sealed packing, 8. support ring, 9. pressure ring, 10. tube connector, 11. lower contacts.
The specific embodiment
Embodiment 1: with a special use sealing intubate that is used for the seal pack device is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model is used for the special use sealing intubate of seal pack device, is made up of top connection 1, slip spider 2, slips 3, the collar 4, shear pin 5, central tube 6, sealed packing 7, support ring 8, pressure ring 9, tube connector 10 and lower contact 11, and total length is 1032.2 millimeters.
The upper end of top connection 1 has 2
7/
8" external upset tubing internal thread, the external diameter of top connection 1 are 94 millimeters.There is internal thread the lower end of top connection 1, is connected with a slip spider 2 cylindraceous at the lower end of top connection 1 internal thread.Be fixed with four horizontal holding screws in top connection 1 and slip spider 2 junctions.Between top connection 1 lower end inwall and slip spider 2 outer walls annular space is arranged, on slip spider 2 outer walls and in the annular space cover slips 3 is being arranged, the lower end of slips 3 is a splitted structure, and the external surface of slips 3 has slip insert.The lower end of slips 3 is in top connection 1 bottom.In the lower end of slips 3 and be with a collar 4 on the outer wall of slip spider 2, the collar 4 is circular, is evenly distributed with eight screws on the collar 4, and eight shear pins 5 are separately fixed in the screw of the collar 4, and the inner of shear pin 5 is embedded in the fixing hole on slip spider 2 outer walls.In slip spider 2 lower ends external screw thread is arranged, slip spider 2 lower end external screw threads are connected with central tube 6, are with first group of sealed packing 7, support ring 8, second group of sealed packing 7 and pressure ring 9 on the outer wall of central tube 6 from top to bottom successively; In central tube 6 lower ends external screw thread is arranged, central tube 6 lower end external screw threads are connected with tube connector 10.The upper surface of tube connector 10 compresses pressure ring 9; On the outer wall of tube connector 10, be with first group of sealed packing 7, support ring 8, second group of sealed packing 7 and pressure ring 9 from top to bottom successively; In tube connector 10 lower ends external screw thread is arranged, tube connector 10 lower end external screw threads are connected with lower contact 11.The upper surface of lower contact 11 compresses pressure ring 9.There is the guide shoe scalene cone lower end of lower contact 11.
Claims (2)
1. a special use sealing intubate that is used for the seal pack device mainly is made up of top connection (1), slip spider (2), slips (3), the collar (4), shear pin (5), central tube (6), sealed packing (7), support ring (8), pressure ring (9), tube connector (10) and lower contact (11); There is internal thread the upper end of top connection (1), it is characterized in that: there is internal thread the lower end of top connection (1), is connected with a slip spider cylindraceous (2) at the lower end internal thread of top connection (1); Be fixed with horizontal holding screw in top connection (1) and slip spider (2) junction, between top connection (1) lower end inwall and slip spider (2) outer wall, annular space is arranged, on slip spider (2) outer wall and in the annular space cover slips (3) is being arranged, the lower end of slips (3) is a splitted structure, and the lower end of slips (3) is in top connection (1) bottom; In the lower end of slips (3) and on the outer wall of slip spider (2), be with the collar (4), the collar (4) is circular, the collar is evenly distributed with screw on (4), and shear pin (5) is fixed in the screw of the collar (4), and the inner of shear pin (5) is embedded in the fixing hole on slip spider (2) outer wall; In slip spider (2) lower end external screw thread is arranged, slip spider (2) lower end external screw thread is connected with central tube (6), is with first group of sealed packing (7), support ring (8), second group of sealed packing (7) and pressure ring (9) on the outer wall of central tube (6) from top to bottom successively; In central tube (6) lower end external screw thread is arranged, central tube (6) lower end external screw thread is connected with tube connector (10), and the upper surface of tube connector (10) compresses pressure ring (9); On the outer wall of tube connector (10), be with first group of sealed packing (7), support ring (8), second group of sealed packing (7) and pressure ring (9) from top to bottom successively; In tube connector (10) lower end external screw thread is arranged, tube connector (10) lower end external screw thread is connected with lower contact (11); The upper surface of lower contact (11) compresses pressure ring (9).
2. the special use sealing intubate that is used for the seal pack device according to claim 1, it is characterized in that: there is scalene cone the lower end of lower contact (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206053419U CN201857934U (en) | 2010-11-11 | 2010-11-11 | Special sealing intubation tube for sealing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206053419U CN201857934U (en) | 2010-11-11 | 2010-11-11 | Special sealing intubation tube for sealing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857934U true CN201857934U (en) | 2011-06-08 |
Family
ID=44103744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206053419U Expired - Lifetime CN201857934U (en) | 2010-11-11 | 2010-11-11 | Special sealing intubation tube for sealing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857934U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086939A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | Y-TOOL bypasses blanking plug |
| CN114382436A (en) * | 2020-10-22 | 2022-04-22 | 中国石油天然气集团有限公司 | Slip mechanism |
-
2010
- 2010-11-11 CN CN2010206053419U patent/CN201857934U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086939A (en) * | 2017-12-11 | 2018-05-29 | 中国海洋石油集团有限公司 | Y-TOOL bypasses blanking plug |
| CN114382436A (en) * | 2020-10-22 | 2022-04-22 | 中国石油天然气集团有限公司 | Slip mechanism |
| CN114382436B (en) * | 2020-10-22 | 2024-03-01 | 中国石油天然气集团有限公司 | Slip mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |