CN2505593Y - Multi-functional tubing string - Google Patents
Multi-functional tubing string Download PDFInfo
- Publication number
- CN2505593Y CN2505593Y CN 01261565 CN01261565U CN2505593Y CN 2505593 Y CN2505593 Y CN 2505593Y CN 01261565 CN01261565 CN 01261565 CN 01261565 U CN01261565 U CN 01261565U CN 2505593 Y CN2505593 Y CN 2505593Y
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- CN
- China
- Prior art keywords
- tubing string
- packing element
- ball seat
- anchor
- packer
- 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 - Fee Related
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Abstract
The utility model provides a multi-functional tubing string, comprising a tubing string and a long rubber packer, wherein, the tubing string is provided with the long rubber packer provided with an anchorage mechanism, a multi-level ball bed and a capturing-bailing machine, wherein, the anchorage mechanism applying a hydraulic structure consists of an anchor body, an anchor fluke and a sealing pipe; the anchorage mechanism can ensure that the tubing string does not vertically move while being used and that the clipping and sealing position of the tubing string is accurate; the multi-level ball bed can make the tubing string continuously work on multi levels and reduce the numbers of the elevation of the tubing string; when the tubing string is used, the capturing-bailing machine is used as the communication channel of liquids and is capable of taking up steel balls and ball beds which are put down, thereby guaranteeing the cleanness and safety in the well. The utility model is widely applied to a plurality of technologies such as oil extraction, sand protection, acidification, compression fracture, water injection and water shut off, etc. in particular to the operation for the multi-level and multi-technique oil-water well.
Description
One, technical field
The utility model relates to the oil exploitation down-hole string, relates in particular to a kind of multi-functional tubing string.
Two, background technology
Disclose a kind of water injection through tubing and casing tubing string in " modern completion engineering " book Chapter 11 that petroleum industry publishing house publishes in May, 2000, the 4th joint " completion tubular column " literary composition, mainly constituted, be intended to carry out seperated layer water injection by tubing string and mechanical support formula packer.But the packer set of this tubing string (can only seat envelope) often takes place because the interlayer pressure fluctuation causes upper strata perforation well to tell sand and sand card tubing string problem on the interlayer borehole wall between the oil reservoir; Also, cause the low problem and the tubing string generation upper and lower displacement problem of success rate of packer card envelope multilayer because interlayer is communicated with, and cement sheath is scurried reasons such as groove.
Three, summary of the invention
The technical problems to be solved in the utility model provides and a kind ofly can overcome and avoid problem in the above-mentioned background technology, the problem includes: the multi-functional tubing string of shortcoming and problem.
The scheme of the utility model technical solution problem is:
The utility model comprises tubing string and long packing element packer, and connecting design on tubing string has the long packing element packer of anchor mechanism, multistage ball seat and catching device.Anchor mechanism is the fluid pressure type structure, forms by anchor body, anchor fluke and sealed tube, and be fluid course between its anchor body and the sealed tube, an end of anchor body and sealed tube is connected on the upper joint sleeve, and the other end is connected on the lower joint sleeve.The fluid sealant cylinder base of long packing element packer is enclosed on the perforated interval of upper formation, and the length of giving full play to long packing element type is apart from sealing process and prevent that the stratum from scurrying the groove effect.Design has middle steel lamination on the lamination of steel up and down between interior packing element and the outer packing element, but wherein difference cross-lapping in lamination two ends has increased the bearing strength of packing element on the external surface of last lamination and following lamination end.Multistage ball seat is made of box cupling, ball seat and pipe nipple, and pipe nipple links to each other with box cupling, and ball seat is fixed on by shear pin on the inwall of pipe nipple, and ball seat can match with the steel ball of different-diameter.The diameter of multistage ball seat reduces from top to bottom one by one, and minimum one-level can constitute multistage arbitrarily according to the interval of required operation at most.Catching device is made of reducer union, screen casing and pin, and an end of screen casing is radially installed pin, and the other end is connected with reducer union.
The utility model and the prior art following advantage of having compared:
1., long packing element packer of the present utility model adopts and adds the long packing element type design, during the seat envelope, with cartridge directly seat be enclosed on the perforated interval of upper formation, avoided reaching cement sheath with ing and scurried the upper formation that reason such as groove causes and tell sand and sand card tubing string problem owing to pressure is moving;
2., design on the lamination of steel up and down in the utility model between packing element and the outer packing element middle steel lamination arranged, improved the bearing capacity of packer:
3., adopted multistage ball seat, one time tubing string can be constructed respectively to multilayer continuously from bottom to top;
4., adopt to put and put tubing string mode seat envelope, deblocking, easy and simple to handle, the seat envelope is accurately;
5., adopt anchor mechanism and cartridge synchronization action form, its anchorage force and simplification operation procedure, shortening activity duration, reduction operating cost.
Four, description of drawings
Fig. 1 is an example structure front view of the present utility model;
Fig. 2 is the utility model long packing element packer structure sectional view;
Fig. 3 is the long packing element type partial enlarged drawing of the utility model Fig. 2;
Fig. 4 is the multistage ball socket structure sectional view of the utility model;
Fig. 5 is the utility model catching device structure sectional view.
Five, the specific embodiment
The utility model can specifically be implemented according to shown in each accompanying drawing, is described in further detail below in conjunction with the embodiment accompanying drawing:
As Fig. 1, Fig. 2, the top connection 14 of the utility model long packing element packer 2 is connected on the tubing string 1, in the lower going-into-well behind the precalculated position, 6 of the outer packing elements of long packing element packer 2 are enclosed on the perforated interval 7 of upper formation 12, the anchor fluke 5 of anchor mechanism 4 is anchored on the inwall of sleeve pipe 11.Multistage ball seat 9 one ends are connected with long packing element packer 2, and the other end connects catching device 10, and catching device 10 is lowered in the sleeve pipe of target zone 13.
As Fig. 2, Fig. 3, pipe nipple 15 1 ends of long packing element packer 2 link to each other with top connection 14, and the other end connects sliding sleeve 18.Pressure cap 16 links to each other with an end of upper joint sleeve 21, and sliding sleeve 18 is encapsulated in the pressure cap 16 with backing pin 19, also has two injection holes 20, bilateral symmetry on the sliding sleeve 18.The through hole 22 that transmits pressure is arranged on the upper joint sleeve 21.Propose or transfer top connection 14 on turning clockwise, can control opening or closing of injection hole 20.The anchor body 23 of anchor mechanism 4 is connected on the external screw thread of upper joint sleeve 21, and sealed tube 25 is connected on the internal thread of upper joint sleeve 21, is fluid passage 24 between anchor body 23 and the sealed tube 25, and anchor fluke 5 is contained on the anchor body 23.Fluid passage 24 can on hold through hole 22 and pass the pressure of coming and transmit downwards, can promote anchor fluke 5 again and outwards move, be anchored on the inwall of sleeve pipe 11, thereby prevented moving up and down of tubing string and instrument.A through hole 27 is arranged on the lower joint sleeve 26, and the one end links to each other with the internal thread of anchor body 23 and the external screw thread of sealed tube 25 respectively, and the other end links to each other with the external screw thread of central tube 28.Design has middle steel lamination 31 between outer packing element 6 and the interior packing element 30, its two ends are overlapped on respectively on the external surface at lamination 29 and following lamination 32 two ends, for this reason, guaranteed that packer bears the reliability and the sealing of interior pressure and oil jacket annular space pressure reduction, has improved the bearing capacity of long packing element packer 2.
As Fig. 4, box cupling 33 1 ends of multistage ball seat 9 link to each other with tube connector 8, and the other end links to each other with pipe nipple 37, and ball seat 34 is fixed on by shear pin 35 on the inwall of pipe nipple 37, and there is steel ball 38 at ball seat 34 seats of honour.The ball seat 34 of multistage ball seat and steel ball 38 can be determined its progression according to the interval of operation and production, can be according to the needs arbitrary load.
As Fig. 5, reducer union 39 1 ends of catching device 10 link to each other with pipe nipple 37, and the other end links to each other with screen casing 40, and numerous holes are arranged on the screen casing 40, and radially there is backing pin 41 its lower end.Catching device 10 is a fluid course, can accept steel ball 38 and the ball seat of destroying 34 simultaneously again.
Claims (6)
1, a kind of multi-functional tubing string, comprise tubing string and long packing element packer, it is characterized in that tubing string (1) upward connects design the long packing element packer (2) of anchor mechanism (4), multistage ball seat (9) and catching device (10) are arranged, expansion packing element (6) seat of long packing element packer (2) is enclosed on the perforated interval (7) of upper formation (12), anchor mechanism (4) is made up of anchor body (23), anchor fluke (5) and sealed tube (25), and an end of anchor body (23) and sealed tube (25) is connected on the upper joint sleeve (21).
2, multi-functional tubing string according to claim 1 is characterized in that anchor mechanism (4) is the fluid pressure type structure, is fluid course (24) between its anchor body (23) and the sealed tube (25).
3, multi-functional tubing string according to claim 1 and 2, it is characterized in that between the interior packing element (30) of long packing element packer (2) and the outer packing element (6) middle steel lamination (31) being arranged, its two ends respectively cross-lapping on the external surface of last lamination (29) and following lamination (32) end.
4, multi-functional tubing string according to claim 1, it is characterized in that ball seat (9) is by box cupling (33), ball seat (34), pipe nipple (37), and shear pin (35) and sealing ring (36) formation, pipe nipple (37) links to each other with box cupling (33), and ball seat (34) is fixed on the inwall of pipe nipple (37) by shear pin (35).
5, multi-functional tubing string according to claim 4 is characterized in that ball seat (34) sealing that can match with the steel ball (38) of different-diameter.
6, multi-functional tubing string according to claim 1 is characterized in that catching device (10) by reducer union (39) and screen casing (40) and pin (41) formation, and an end of screen casing (40) radially installs pin (41), and the other end is connected in the reducer union (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261565 CN2505593Y (en) | 2001-09-07 | 2001-09-07 | Multi-functional tubing string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261565 CN2505593Y (en) | 2001-09-07 | 2001-09-07 | Multi-functional tubing string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505593Y true CN2505593Y (en) | 2002-08-14 |
Family
ID=33669484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01261565 Expired - Fee Related CN2505593Y (en) | 2001-09-07 | 2001-09-07 | Multi-functional tubing string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505593Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094595A (en) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | Totally-enclosed device for upper part of injection layer of downhole operation of high-pressure water injection well |
| CN101377125B (en) * | 2008-10-08 | 2012-09-05 | 中国石化股份胜利油田分公司现河采油厂 | Water well acidizing and sand prevention liquid replacing apparatus |
| CN103321626A (en) * | 2013-07-11 | 2013-09-25 | 中国海洋石油总公司 | Fracture and sand prevention integrated completion pipe string and application method thereof |
| CN105696994A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Device used for multidirectional pressure control type spraying-sealing fracturing and tubular column comprising same |
| CN109681160A (en) * | 2018-02-05 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of packing element anchoring separate layer water injection string and method |
| CN109989723A (en) * | 2017-12-29 | 2019-07-09 | 中国石油天然气股份有限公司 | Explosion is given up more shower Kong Lianzuo pressure break sealing devices |
-
2001
- 2001-09-07 CN CN 01261565 patent/CN2505593Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101377125B (en) * | 2008-10-08 | 2012-09-05 | 中国石化股份胜利油田分公司现河采油厂 | Water well acidizing and sand prevention liquid replacing apparatus |
| CN102094595A (en) * | 2010-12-17 | 2011-06-15 | 中国石油集团长城钻探工程有限公司 | Totally-enclosed device for upper part of injection layer of downhole operation of high-pressure water injection well |
| CN103321626A (en) * | 2013-07-11 | 2013-09-25 | 中国海洋石油总公司 | Fracture and sand prevention integrated completion pipe string and application method thereof |
| CN103321626B (en) * | 2013-07-11 | 2016-01-13 | 中国海洋石油总公司 | A kind of fracturing sand control integration completion tubular column and application process thereof |
| CN105696994A (en) * | 2016-01-20 | 2016-06-22 | 中国石油化工股份有限公司 | Device used for multidirectional pressure control type spraying-sealing fracturing and tubular column comprising same |
| CN105696994B (en) * | 2016-01-20 | 2018-06-12 | 中国石油化工股份有限公司 | The device of envelope pressure is sprayed for multidirectional pressure control type and includes its tubing string |
| CN109989723A (en) * | 2017-12-29 | 2019-07-09 | 中国石油天然气股份有限公司 | Explosion is given up more shower Kong Lianzuo pressure break sealing devices |
| CN109989723B (en) * | 2017-12-29 | 2021-11-02 | 中国石油天然气股份有限公司 | Multi-cluster perforation combined fracturing sealing device for blasting releasing |
| CN109681160A (en) * | 2018-02-05 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of packing element anchoring separate layer water injection string and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |