CN2318392Y - Soft slip type water injection packer - Google Patents
Soft slip type water injection packer Download PDFInfo
- Publication number
- CN2318392Y CN2318392Y CN 97243441 CN97243441U CN2318392Y CN 2318392 Y CN2318392 Y CN 2318392Y CN 97243441 CN97243441 CN 97243441 CN 97243441 U CN97243441 U CN 97243441U CN 2318392 Y CN2318392 Y CN 2318392Y
- Authority
- CN
- China
- Prior art keywords
- soft
- slip
- flushing valve
- thread connection
- water injection
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 238000011010 flushing procedure Methods 0.000 claims abstract description 26
- 238000012856 packing Methods 0.000 claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 5
- 241000239290 Araneae Species 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- -1 acidifying Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a soft slips formula water injection packer adds an outer soft slips in the bottom of packer lower piston, and its inside adopts cone structure, plays the effect of increasing resistance and rightting, has set up soft retaining bowl of metal, soft spacer ring and butterfly support ring in the outside of packing element, has strengthened the ability of the anti radial force of packing element department, utilizes the locking piece in locking structure, props up the jump ring and reaches lock state to utilize soft or hard synchronous sealing in well-flushing valve department, guaranteed sealed tightness. The soft slip can also play a role in righting the rubber cylinder and solve the problems of no silt, no dirt, no water flow scaling and the like. The inner central tube is integrated, and is convenient to detach and install.
Description
The utility model relates to a kind of packer that is used for the oil gas field seperated layer water injection, is applicable to seperated layer water injection, acidifying, water blockoff etc., is specially adapted in the directional well.
At present, the oil field is a lot of with the water injection packer kind, and its characteristics are respectively arranged, and its difference mainly shows the interior locking when packing element sets, aspects such as flushing valve and agent structure.With the similar relevant patent of soft slip-type water injection packer operating principle, as: directional well packer, righting type washing well packer, a kind of deep well high pressure packer, the principle of setting upright of preceding two kinds of packers is identical, not enough place is mandatory setting upright, and carries out grappling by tubing string support artificial bottom of a well or tubing string (packer) lower end and realizes.When setting, do not reach this function by packer self; Next is set upright part and adopts steel ball, and the steel ball distortion is very small, the external diameter when being difficult to adjust steel ball like this and strutting, and the two must have certain clearance, does not reach the best effect of setting upright; In addition, the frictional force that produces between steel ball and sleeve pipe is very little.Deep well high pressure packer patent has been done big change at packer well-washing valve and interlock assembly, but still has the following disadvantages: valve is not closed completely, and under big differential pressure action, valve port is very easily leaked by thorn, and sealing life is shorter; In addition, because the leg of valve spring slip is downward in the release mechanism, with the water (flow) direction unanimity, and need not separate cutting ferrule, silt and falls into the reed bar of well and cotton yarn etc. and causes not deblocking of packer easily in slips place deposition during well-flushing in the operation.This two classes packer is and once sets the formula packer, in a single day implements to separate in the down-hole to be honored as a queen, and promptly can not realize setting again.
The purpose of this utility model is to provide a kind of energy to realize the soft slip-type water injection packer that repeatedly sets, and soft slips can slow down under the fluctuation of tubing string interlayer pressure difference and water injection pressure, causes " elastic telescopic " wriggling, thereby prolongs the life-span of packer.Soft slips also can play the effect of setting upright packing element, and solves problems such as no silt, dirt and current fouling.
Fig. 1 is soft slip-type water injection packer structural representation.
The purpose of this utility model is achieved in that sets up an outer soft slips, its inner face in the bottom of packer lower piston Adopt conical structure, play and increase the effect that resistance is set upright, in the arranged outside of packing element metal is soft protects bowl, soft spacer ring and butterfly The shape support ring has strengthened the ability of the anti-radial load in packing element place; In latch-up structure, utilize lock dog, prop up jump ring and reach locking State, and utilize the soft or hard synchronous sealed at the flushing valve place, guaranteed the tightness of sealing. Its design feature is: at soft slips The upper end of the inner central tube 5 of formula water injection packer and top connection 1 thread connection, lower end and lower contact 32 thread connection are washed Well valve bonnet 3, well-flushing valve body 4, flushing valve 6, L shaped seal 7 are enclosed within the top connection 1, and top connection and shear pin 2 connect Connect shear pin and well-flushing valve bonnet 3 thread connection; Well-flushing valve seat 8 upper ends and well-flushing valve bonnet 3 thread connection, the lower end with Exterior central tube 12 thread connection; Soft bowl 9, soft spacer ring 10, butterfly support ring 11, spacer ring 13, packing element 14, the pressure ring of protecting of metal 15 are enclosed within on the exterior central tube 12, exterior central tube and jump ring body 18 thread connection; Pressure ring 15, slip spider 16 and regulating sleeve 22 Between respectively be thread connection, anti-seat pin nail 17 and slip spider 16 thread connection, slip spider 16 is one with jump ring body 18 Body; Jump ring 20 connects with jump ring body 18, is provided with lock dog 21 in the groove of jump ring body, upper piston 24, piston body 25, lower piston 26, soft fixing spider 27 is enclosed within on the central tube 5, upper piston 24 and regulating sleeve 22 and upper and lower piston space attachment pegs 23 Connect; Sheet spring 29 is fixed on the soft slips 28 by screw 30, and is located in the groove of slip sleeve 31, slip sleeve and lower work Fill in 26 thread connection. The inner face of soft slips is conical structure; Be the soft or hard synchronous sealed at the flushing valve place, its soft seal Structure is for falling " L " type. O RunddichtringO 19 forms the appearance of sealing with slip spider 16 at the jump ring place in interior latch-up structure The chamber.
The utlity model has following advantage: can realize the soft slip-type water injection packer that repeatedly sets, can slow down under the fluctuation of tubing string interlayer pressure difference and water injection pressure, cause " elastic telescopic " wriggling, thereby prolong the life-span of packer because soft card digs.Soft slips also can play the effect of setting upright packing element, and solves problems such as no silt, dirt and current fouling.Inner central tube adopts monolithic, and is easy for removal and installation.
Below in conjunction with accompanying drawing the utility model is further described:
This packer and injection well downhole flow regulator, ball-and-seat, the separate injection tubing string that downhole tools such as screen casing are formed arrives packer down the position of design.When packer setting: apply hydraulic pressure in oil pipe, the aperture of hydraulic pressure in top connection 1 acts on the flushing valve inner chamber, and it is closed; Aperture and piston body 25 and the central tube 5 specific runner that the form balancing gate pit that enter upper and lower fluid cylinder of hydraulic pressure on central tube 5, promotion is by pressure ring 15, slip spider 16, the outer working tube that regulating sleeve 22 grades are formed is up, cut off anti-seat pin nail 17, the upper end presses continuous packing element 13 to make the soft bowl 9 that protects of metal under 12 effects of butterfly support ring, it is big that radial dimension becomes, Seal Oil cover annular space, it is up along the inclined-plane (conical surface) of the soft slips bearing 27 of inner supporting body that its underpart drives soft slips 28, and the size increase of soft slips 28 external diameters footpath is supportted fully on internal surface of sleeve pipe; This moment, clip spring seat 16 was uply pinned by jump ring 20, made packer in running order all the time.When well-flushing: flushing fluid injects from the oil jacket annular space, and it is up to promote flushing valve 14, the annular space runner that forms through exterior central tube 12 and inner central tube 5, and the duct on jump ring body 18 and clip spring seat 16 again enters the oil jacket annular space of packer bottom; Thereby having formed the anti-flushing well passage in packer inside, flushing fluid enters the oil pipe internal return through screen casing and bottom ball-and-seat and goes out.After water distributing core was pulled out, flushing fluid injected from oil pipe is arranged, and in like manner forms positive well-flushing passage, and flushing fluid enters the oil jacket annular space and returns ground from the injection well downhole flow regulator water hole.When deblocking, the upper lifting pipe post: top connection 1, inner central tube 5, lower contact 31 is up with tubing string, cut off shear pin 2, and by packing element 13, pressure ring 15, the outer working tube one that internal slip seat 16 grades are formed is motionless with the frictional force maintenance of sleeve pipe by packing element 13 and soft slips 28, when lock dog 21 slides in the path groove of inner central tube 5, make jump ring 20 lose its support force, under the bounce of packing element and the recovery power effect of self, reclaim, then the packer deblocking.
Claims (4)
1. soft slip-type water injection packer, the upper end and top connection (1) thread connection that it is characterized in that inner central tube (5), lower end and lower contact (32) thread connection, well-flushing valve bonnet (3), well-flushing valve body (4), flushing valve (6), L shaped seal (7) are enclosed within the top connection (1), top connection (1) is connected with shear pin (2), shear pin (2) and well-flushing valve bonnet (3) thread connection; Well-flushing valve seat (8) upper end and well-flushing valve bonnet (3) thread connection, lower end and exterior central tube (12) thread connection; Metal is soft to protect bowl (9), a soft spacer ring (10), butterfly support ring (11), spacer ring (13), packing element (14), pressure ring (15) is enclosed within on the exterior central tube (12) exterior central tube (12) and jump ring body (18) thread connection; Thread connection between pressure ring (15), slip spider (16) and transfer cover (22), anti-seat pin nail (17) connects with slip spider (16), and slip spider and jump ring sports association are one; Jump ring (20) connects with jump ring body (18), be provided with lock dog (21) in the groove of jump ring body, upper piston (24), piston body (25), lower piston (26), soft slips bearing (27) are enclosed within on the central tube (5), and upper piston (24) connects with attachment pegs (23) with regulating sleeve (22) and upper and lower piston space; Sheet spring (29) is fixed on the soft slips (28) by screw (30), and is located in the groove of slip sleeve (31), slip sleeve (31) and lower piston (26) thread connection.
2. soft slip-type water injection packer according to claim 1, the inner face that it is characterized in that soft slips is a conical structure.
3. soft slip-type water injection packer according to claim 1 is characterized in that the flushing valve place is that soft or hard seals synchronously, and its soft seal structure is for falling " L " type.
4. soft slip-type water injection packer according to claim 1 is characterized in that O RunddichtringO (19) forms the room that seals with slip spider (16) at the jump ring place in interior latch-up structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243441 CN2318392Y (en) | 1997-10-27 | 1997-10-27 | Soft slip type water injection packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97243441 CN2318392Y (en) | 1997-10-27 | 1997-10-27 | Soft slip type water injection packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318392Y true CN2318392Y (en) | 1999-05-12 |
Family
ID=33952432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97243441 Expired - Fee Related CN2318392Y (en) | 1997-10-27 | 1997-10-27 | Soft slip type water injection packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318392Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654043A (en) * | 2011-03-04 | 2012-09-05 | 中国石油化工股份有限公司 | Automatic set-down type tubing plug |
| CN103184848A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic seat seal permanent open hole packer and open hole well-completion packing method |
| WO2014117463A1 (en) * | 2013-01-31 | 2014-08-07 | 中国石油天然气股份有限公司 | Bridge-type concentric continuously adjustable water distributor |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN109057743A (en) * | 2018-07-10 | 2018-12-21 | 盐城市森鑫石油机械有限公司 | A kind of structure of Packer for blocking water and combinations thereof method for dismounting |
-
1997
- 1997-10-27 CN CN 97243441 patent/CN2318392Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654043A (en) * | 2011-03-04 | 2012-09-05 | 中国石油化工股份有限公司 | Automatic set-down type tubing plug |
| CN102654043B (en) * | 2011-03-04 | 2014-05-28 | 中国石油化工股份有限公司 | Automatic set-down type tubing plug |
| CN103184848A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic seat seal permanent open hole packer and open hole well-completion packing method |
| CN103184848B (en) * | 2011-12-29 | 2015-09-30 | 安东石油技术（集团）有限公司 | Hydraulic base sealed permanent type open hole packer and barefoot completion packing method |
| WO2014117463A1 (en) * | 2013-01-31 | 2014-08-07 | 中国石油天然气股份有限公司 | Bridge-type concentric continuously adjustable water distributor |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN108412426B (en) * | 2018-02-01 | 2019-04-16 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN109057743A (en) * | 2018-07-10 | 2018-12-21 | 盐城市森鑫石油机械有限公司 | A kind of structure of Packer for blocking water and combinations thereof method for dismounting |
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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 |