CN1896454A - Packer - Google Patents
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- Publication number
- CN1896454A CN1896454A CN 200610044570 CN200610044570A CN1896454A CN 1896454 A CN1896454 A CN 1896454A CN 200610044570 CN200610044570 CN 200610044570 CN 200610044570 A CN200610044570 A CN 200610044570A CN 1896454 A CN1896454 A CN 1896454A
- Authority
- CN
- China
- Prior art keywords
- deblocking
- packer
- packing element
- sleeve
- cut
- 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
Abstract
This is a kind of packer. The oil pipe is pressed and rubber cylinder is expanded to seal the ring space of oil sleeve. The inner cavity pressure of rubber cylinder assembly keeps constant under the action of check valve. The packer is anchored on the sleeve. After expanding, rubber cylinder assembly firmly attaches on the inner wall of sleeve and seals the ring space of oil sleeve. There is enough anchoring force between rubber cylinder and sleeve to make there is no relative movement between the packer and sleeve. Thus, sealing is firm. Since the rubber cylinder has no slips, the sleeve will not be damaged.
Description
One, technical field
The present invention is the laminated distributor under well oil tool of oil field oil recovery usefulness, is a kind of packer.Belong to engineering goods.
Two, background technology
Implement layering card water blockoff oil recovery technique, envelope is fallen high aquifer, is the effective way that the control well water rises.Layering card water blockoff will adopt packer, existing packer kind is more, packer in every mouthful of well must adopt the packer of one-level band slips, play support tube column, as Y221, Y211 etc. all is slips type packer, this class slips type packer set makes the tubing string that supports that sleeve pipe generation plastic strain could be firm by the high rigidity slips on the packer, and packing element sealing tube post weight compression packing element is realized.Therefore, the packer that can satisfy oil-separating layer at present damages sleeve pipe easily, causes drilling pipe bending, rod and tube partial-wear occurs, and packer glides, problems such as the low and deblocking difficulty of success rate.
Three, summary of the invention
The objective of the invention is to design a kind of packer, do not need tubing string weight seat envelope, do not damage sleeve pipe, good airproof performance supports reliably, can multistagely use.
The object of the present invention is achieved like this: the packing element assembly is arranged at the top connection bottom, packing element assembly bottom connects with single current valve body top, ball-and-seat, thimble are installed in the single current valve body, the single current valve body lower portion is cut ring set top with deblocking and is connected, interior pipe top connects with top connection is inner down, packing element assembly, single current valve body, deblocking are cut annulate shaft and are sleeved on outside the interior pipe, deblocking is cut annulate shaft and is cut between the ring set at interior pipe and deblocking, deblocking is cut ring set and is contained in deblocking and cuts on the annulate shaft, interior pipe bottom connects with the retaining joint, and deblocking is cut the ring set bottom and connected with lower contact.Constant pressure arrangement is installed in packing element assembly bottom.Deblocking is cut ring can be made into the pin shape.
The invention has the beneficial effects as follows: suppress be honored as a queen packing element assembly expansion of seat, be close to and seal up oil casing annular space on the internal surface of sleeve pipe, enough big anchorage force is arranged between packing element assembly and the sleeve pipe, make between packer and the sleeve pipe and can not produce relative motion, therefore seat secures solid, because the packing element assembly does not have slips, so do not damage sleeve pipe, good airproof performance.Under the effect of ball-and-seat, after not suppressing, packing element assembly chamber pressure remains unchanged, and packing element can not shrink, and packer is anchored on the sleeve pipe all the time.Deblocking realizes that by cutting off ring or pin the shearing force size can be determined as requested, so deblocking is reliable.Do not need tubing string weight seat envelope, do not have the crooked eccentric wear problem of rod tube, packer progression is unrestricted in the same well, can multistagely use, and layering quantity is many.
Four, description of drawings
Accompanying drawing is the assembling drawing of the embodiment of the invention.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described.
Among the figure: the 1st, top connection, the 2nd, the packing element assembly, the 3rd, interior pipe, the 4th, constant pressure arrangement, the 5th, ball-and-seat, the 6th, thimble, the 7th, the single current valve body, the 8th, deblocking is cut annulate shaft, and the 9th, deblocking is cut ring, and the 10th, deblocking is cut ring set, and the 11st, retaining connects, and the 12nd, lower contact.1 time outside of top connection connects with packing element assembly 2 tops, packing element assembly 2 bottoms connect with single current valve body 7 tops, ball-and-seat 5, thimble 6 are installed in the single current valve body 7, single current valve body 7 bottoms are cut ring set 10 tops with deblocking and are connected, 1 time inner connection of interior pipe 3 tops and top connection, packing element assembly 2, single current valve body 7, deblocking are cut annulate shaft 8 and are sleeved on outside the interior pipe 3, deblocking is cut annulate shaft 8 and is cut between the ring set 10 at interior pipe 3 and deblocking, deblocking is cut ring 9 and is sleeved on deblocking and cuts on the annulate shaft 8, interior pipe 3 bottoms connect with retaining joint 11, and deblocking is cut ring set 10 bottoms and connected with lower contact 12.Constant pressure arrangement 4 is installed in packing element assembly 2 bottoms.Deblocking is cut ring 9 can be made into the pin shape.
The present invention is with the design attitude in the oil well casing under the tubing string, when going into the well under the effect of constant pressure arrangement 4, the packing element chamber pressure is low, packing element is not expanded, after projected depth, suppress in oil pipe down, pressure enters through the pressure transmission hole of interior pipe 3, through ball-and-seat 5, outer wall along interior pipe 3 reaches in the packing element assembly 2, makes the packing element expansion, seals up oil casing annular space, and be anchored on the sleeve pipe, after not suppressing, under the effect of ball-and-seat 5, packing element assembly 2 chamber pressures remain unchanged, packing element can not shrink, and packer is anchored on the sleeve pipe all the time.Workover treatment next time is when needing deblocking, the upper lifting pipe post, and pipe 3 in driving, retaining joint 11 are up, cut off deblocking and cut ring (or pin) 9, deblocking is cut annulate shaft 8, thimble 6 in company with up, and thimble 6 backs down the valve ball of ball-and-seat 5, and the pressure in the packing element discharges, packing element shrinks, the packer deblocking, and tubing string can propose.
Packing element assembly 2 tops can not connect with 1 time outside of top connection yet, and connect with interior pipe 3 tops.
Claims (3)
1, a kind of packer, packing element assembly (2) is arranged, it is characterized in that: packing element assembly (2) is arranged at top connection (1) bottom, packing element assembly (2) bottom connects with single current valve body (7) top, ball-and-seat (5) is installed in the single current valve body (7), thimble (6), single current valve body (7) bottom is cut ring set (10) top with deblocking and is connected, interior pipe (3) top connects with top connection (1) is inner down, packing element assembly (2), single current valve body (7), deblocking is cut annulate shaft (8) and is sleeved on outside the interior pipe (3), deblocking is cut annulate shaft (8) and is cut between the ring set (10) at interior pipe (3) and deblocking, deblocking is cut ring (9) and is sleeved on deblocking and cuts on the annulate shaft (8), interior pipe (3) bottom connects with retaining joint (11), and deblocking is cut ring set (10) bottom and connected with lower contact (12).
2, packer according to claim 1 is characterized in that: constant pressure arrangement (4) is installed in packing element assembly (2) bottom.
3, packer according to claim 1 is characterized in that: deblocking is cut ring (9) can be made into the pin shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044570 CN1896454A (en) | 2006-05-25 | 2006-05-25 | Packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610044570 CN1896454A (en) | 2006-05-25 | 2006-05-25 | Packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1896454A true CN1896454A (en) | 2007-01-17 |
Family
ID=37609075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610044570 Pending CN1896454A (en) | 2006-05-25 | 2006-05-25 | Packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1896454A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094592A (en) * | 2011-03-15 | 2011-06-15 | 东营市兆鑫工贸有限责任公司 | Open hole well packer |
| CN102094591A (en) * | 2011-03-15 | 2011-06-15 | 东营市兆鑫工贸有限责任公司 | Fracturing packer for barefoot well |
| CN103184856A (en) * | 2013-02-28 | 2013-07-03 | 中国石油天然气集团公司 | Hydraulic jet packer applicable to multilevel hydraulic jet fracturing |
| CN104453774A (en) * | 2014-12-12 | 2015-03-25 | 新疆力信油田工程技术有限公司 | Downhole blowout preventer |
| CN105006196A (en) * | 2015-06-29 | 2015-10-28 | 株洲时代新材料科技股份有限公司 | Contraction type simulation packer and assembly-disassembly method thereof |
-
2006
- 2006-05-25 CN CN 200610044570 patent/CN1896454A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094592A (en) * | 2011-03-15 | 2011-06-15 | 东营市兆鑫工贸有限责任公司 | Open hole well packer |
| CN102094591A (en) * | 2011-03-15 | 2011-06-15 | 东营市兆鑫工贸有限责任公司 | Fracturing packer for barefoot well |
| CN103184856A (en) * | 2013-02-28 | 2013-07-03 | 中国石油天然气集团公司 | Hydraulic jet packer applicable to multilevel hydraulic jet fracturing |
| CN104453774A (en) * | 2014-12-12 | 2015-03-25 | 新疆力信油田工程技术有限公司 | Downhole blowout preventer |
| CN105006196A (en) * | 2015-06-29 | 2015-10-28 | 株洲时代新材料科技股份有限公司 | Contraction type simulation packer and assembly-disassembly method thereof |
| CN105006196B (en) * | 2015-06-29 | 2018-01-09 | 株洲时代新材料科技股份有限公司 | A kind of contraction type simulation packer and its mounting and dismounting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |