CN201025006Y - Once extrusion and cycling filling tool for high pressure sealing - Google Patents
Once extrusion and cycling filling tool for high pressure sealing Download PDFInfo
- Publication number
- CN201025006Y CN201025006Y CNU2007200190020U CN200720019002U CN201025006Y CN 201025006 Y CN201025006 Y CN 201025006Y CN U2007200190020 U CNU2007200190020 U CN U2007200190020U CN 200720019002 U CN200720019002 U CN 200720019002U CN 201025006 Y CN201025006 Y CN 201025006Y
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- CN
- China
- Prior art keywords
- filling
- central tube
- tube
- ring
- lock ring
- 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 relates to a high voltage excluding single extrusion cycle packing tool, which is an improvement on the basis of original hang release excluder, comprising an upper tie-in, a hydraulic pressure assembly, a locking assembly, an airproof assembly, an anchoring assembly, a filling assembly, a shut organ, a releasing organ and a lower tie-in. the upside of the movable plunger ring is provided with a through hole. A central filling tube is penetrated in the upper and lower tie-ins. The central filling tube, a salvage joint, a central tube form a reverse washing annular cavity, and the reverse washing annular cavity forms a reveres washing passage with the through hole of a lower taper. A filling port is arranged in a filling cylinder at the lower part of the lower taper which forms a filling passage with the through hole of the central filling tube. Basing on preserving function and effect of the hung releasing spacer, the utility model combines effectively filling in gravel and reversely washing the well into a tool, so as to greatly improve the working efficiency, reduce procedures in construction and work and allow using in sand proof technique for oil fields.
Description
One, technical field
The utility model relates to the underground work instrument of oilfield filling, sand control, extrusion cycle packing tool of particularly a kind of high pressure packing.
Two, background technology
The disclosed Chinese patent ZL99219693.0 of the inventor " suspension back-off packer " is made up of top connection, locking assembly, seal assembly, grappling assembly, lower contact.The locking assembly comprises retaining mechanism, seat sealing mechanism, separates sealing mechanism and four parts of releasing gadget, wherein retaining mechanism is made up of central tube, lock ring, mobile pressure ring, lock ring sheath, lock ring is positioned at lock ring sheath and mobile pressure ring connection of thread, and lock ring is processed with internal thread and open slot and central tube upper external thread and is designed to single face zigzag step lock; The seat sealing mechanism is made up of mobile pressure ring, seat envelope shear pin, lock ring, lock ring sheath, and seat envelope shear pin is positioned at mobile pressure ring bottom, and lock ring sheath bottom and packing element join; Form releasing gadget by lock pawl, the shear pin of giving up, ball seat sliding sleeve and Supporting ring, the shear pin of giving up is positioned at lock pawl and lock ring sheath connecting part, lock pawl Lower Half threading links to each other with the central tube internal thread with open slot, and lock pawl lower inner surface is equipped with seat envelope and Supporting ring, forms in the lock pawl and supports.Than traditional 756-6 type, 251 type packers bigger improvement has been arranged, but the problem that exists is the function that packer does not have pack gravel and backwash oil well.
Three, summary of the invention
The purpose of this utility model provides extrusion cycle packing tool of a kind of high pressure packing, and functions such as locking, sealing, grappling and pack gravel, backwash oil well are effectively combined, and overcomes effectively or avoids above-mentioned problems of the prior art.
Extrusion cycle packing tool of high pressure packing described in the utility model comprises top connection, hydraulic mechanism, locking assembly, seal assembly, slip insert grappling assembly, lower contact; The locking assembly comprises retaining mechanism, seat sealing mechanism, separates sealing mechanism and four parts of releasing gadget, wherein retaining mechanism comprises central tube, lock ring, mobile pressure ring, lock ring sheath composition, lock ring is positioned at lock ring sheath and mobile pressure ring junction, horse mouth screw thread and open slot in lock ring is processed with, and the horse mouth screw thread that is provided with fishing joint forms step lock, the seat sealing mechanism is made up of mobile pressure ring, shop bolt, lock ring, lock ring sheath, upper cone, slip insert shell and lower cone, shop bolt is positioned at mobile pressure ring bottom, and lock ring sheath bottom and packing element join; Separate sealing mechanism and comprise fishing joint, deblocking shear pin, central tube, lock ring, fishing joint and cooperates with central tube top concave, convex between central tube and lock ring, and the bottom is provided with outer lug boss and deblocking shear pin hole; Described going up between the lower contact is connected with the filling central tube, form a toroidal cavity between this filling central tube and the central tube, the bottom of lower cone is the lengthening cylinder, this cylinder radially offer through hole, the outside of through hole has the backwash ring set to go into sealing, on the toroidal cavity, down respectively with mobile pressure ring inner chamber and lower cone on through hole connect, the bottom of described lower cone connects the filling tube, filling tube bottom links to each other with connector, the filling tube is provided with the filling mouth, in the bottom of filling mouth by connector and central tube, in the annular space that the filling tube is formed spring is housed, in the close filling central tube of lower contact, ball seat is housed, and described filling central tube is near on the filling tube filling mouth position, is provided with and the through hole of filling mouth equal number is with spring body and supports mutually between backwash ring and filling tube.
Wherein, described ball seat is a cylindrical tube, and its upper port is the arc sphere, forms with spheroid to be sealed and matched, and slides between lower cone and the filling central tube to cooperate.Described ball seat is fixed by pin and filling central tube.The bottom of described lock ring sheath joins by upper isolating ring and cartridge.Radially be provided with 2-5 through hole on the lengthening cylinder of described lower cone.Described filling tube middle part radially is provided with 2-5 filling mouth.Described mobile pressure ring top is provided with 2-5 through hole.
The utility model has compared with prior art on the function basis that keeps the suspension back-off packer, once extruding of gravel, flow pack and backwash oil well function are effectively combined and increase work efficiency greatly, reduce advantages such as construction operation program.
Four, description of drawings
Accompanying drawing is a kind of overall structure schematic diagram of the present utility model.
Five, the specific embodiment
Consult accompanying drawing, extrusion cycle packing tool of high pressure packing comprises top connection 1, hydraulic mechanism, locking assembly, seal assembly, slip insert grappling assembly, lower contact 30; The locking assembly comprises retaining mechanism, the seat sealing mechanism, separate four parts of sealing mechanism and releasing gadget, wherein retaining mechanism comprises central tube 10, lock ring 9, mobile pressure ring 6, lock ring sheath 11 is formed, lock ring 9 is positioned at lock ring sheath and mobile pressure ring junction, horse mouth screw thread and open slot in lock ring is processed with, and the horse mouth screw thread that is provided with fishing joint 7 forms step lock, the seat sealing mechanism is by mobile pressure ring 6, shop bolt 8, lock ring 9, lock ring sheath 11, upper cone 17, slip insert shell 18 and lower cone 21 are formed, shop bolt 8 is positioned at mobile pressure ring bottom, and lock ring sheath 11 bottoms and packing element 15 join; Separate sealing mechanism and comprise fishing joint 7, deblocking shear pin 12, central tube 10, lock ring 9, fishing joint 7 and cooperates with central tube top concave, convex between central tube and lock ring, and the bottom is provided with outer lug boss and deblocking shear pin hole; Be connected with filling central tube 2 between the last lower contact, form a toroidal cavity between this filling central tube and the central tube 10, the bottom of lower cone 21 is the lengthening cylinder, this cylinder radially offer through hole, the outside of through hole has backwash ring 22 to be inserted in sealing, on the toroidal cavity, down respectively with mobile pressure ring 6 inner chambers and lower cone on through hole connect, the bottom of lower cone connects filling tube 24, filling tube bottom links to each other with connector 29, the filling tube is provided with the filling mouth, in the bottom of filling mouth by connector 29 and filling central tube 2, in the annular space that filling tube 24 is formed spring 28 and sealing drum 27 are housed, in the close filling central tube 2 of lower contact 30, ball seat 25 is housed, the filling central tube is near on the filling tube filling mouth position, be provided with the through hole with filling mouth equal number, be with spring body 23 between backwash ring 22 and the filling tube 24 and support mutually.
Ball seat 25 is cylindrical tubes, and its upper port is the arc sphere, forms with spheroid to be sealed and matched, and slides between lower cone 21 and the filling central tube 2 to cooperate.Ball seat is fixed by pin 26 and filling central tube 2.The bottom of lock ring sheath 11 joins by upper isolating ring 13 and cartridge 15.Radially be provided with 2-5 through hole on the lengthening cylinder of lower cone 21.Filling tube 24 middle parts radially are provided with 2-5 filling mouth.Mobile pressure ring 6 tops are provided with 2-5 through hole.Mobile pressure ring 6 is fixed by shop bolt 8 with fishing head 7.Central tube 10 is outer, be installed on sleeve 14 in packing element 15 and the upper cone 17.Lower isolating ring 16 is installed on the packing element 15 lower and upper cones 17.Slip insert 19 and bow spring 20 are installed in the slip insert shell 18.Be installed on seal 3 on piston 5, fishing joint 7, sleeve 14 and the lower cone 17.
During work, instrument down to design attitude, put into a spheroid in the filling central tube 2 and be landed on the ball seat 25, suppress the 5-6 MPa from top connection 1 and act on the piston 5, promote mobile pressure ring 6 behind piston 5 pressurizeds, mobile pressure ring 6 relative fishing joints 7 move down, at this moment dowel pin 8 is cut off, and slip insert shell 18 is pushed out and firmly is stuck on the oil well casing inwall, continues to suppress piston 5 and continues descending, with packing element 15 spreadings, the oil well casing annular space is sealed.The ball seat pin 26 that continues to boost is cut off, ball seat 25 glides, at this moment filling central tube 2 is ganged up with oil well casing, filling central tube 2 internal pressures reduce to zero, owing to be connected for the gingival cyst of mucous gland in the newborn button between lock ring 9 and the fishing joint 7, make packing element 15 be enclosed in the oil well casing annular space firmly, just finished the seat envelope of instrument this moment and opened the back-up sand passage.Suppress and inject load fluid from top connection 1 then, the filling oil reservoir after stowing pressure reaches certain value, stops to inject load fluid.At this moment, change in sleeve pipe and suppress injection liquid, behind the through hole of liquid by mobile pressure ring 6 and lower cone 21, oppositely enter into filling central tube 2 from the through hole of filling tube 24, so process develops gravels in the filling central tube 2.Stop to suppress after flushing is finished, backwash ring 22 moves the backwash pathway closure under the effect of spring 23.After operation is finished, on carry tubing string, top connection 1 and filling central tube 2 are poured out from connector 29, sealing drum 27 moves the filling passage of closing filling tube 24, the operation of finishing filling and putting sand control pipe aside under the effect of spring 28.During fishing tool, fishing string is lowered into fishing joint 7, after the lifting fishing joint 7, deblocking shear pin 12 is cut off, and slip insert shell 18 and packing element 15 discharge automatically, instrument can be proposed oil well, finish whole operations.
Claims (7)
1. extrusion cycle packing tool of a high pressure packing comprises top connection, hydraulic mechanism, locking assembly, seal assembly, slip insert grappling assembly, lower contact; The locking assembly comprises retaining mechanism, seat sealing mechanism, separates sealing mechanism and four parts of releasing gadget, wherein retaining mechanism comprises central tube, lock ring, mobile pressure ring, lock ring sheath, lock ring is positioned at lock ring sheath and mobile pressure ring junction, horse mouth screw thread and open slot in lock ring is processed with, and the horse mouth screw thread that is provided with fishing joint forms step lock, the seat sealing mechanism is made up of mobile pressure ring, shop bolt, lock ring, lock ring sheath, upper cone, slip insert shell and lower cone, shop bolt is positioned at mobile pressure ring bottom, and lock ring sheath bottom and packing element join; Separate sealing mechanism and comprise fishing joint, deblocking shear pin, central tube, lock ring, fishing joint and cooperates with central tube top concave, convex between central tube and lock ring, and the bottom is provided with outer lug boss and deblocking shear pin hole; It is characterized in that described going up between the lower contact is connected with the filling central tube, form a toroidal cavity between this filling central tube and the central tube, the bottom of lower cone is the lengthening cylinder, this cylinder radially offer through hole, the outside of through hole has the backwash ring set to go into sealing, on the toroidal cavity, down respectively with mobile pressure ring inner chamber and lower cone on through hole connect, the bottom of described lower cone connects the filling tube, filling tube bottom links to each other with connector, the filling tube is provided with the filling mouth, in the bottom of filling mouth by connector and central tube, in the annular space that the filling tube is formed spring is housed, near in the filling central tube of lower contact, ball seat is housed, described filling central tube is near on the filling tube filling mouth position, be provided with the through hole with filling mouth equal number, between backwash ring and filling tube, be with spring body and support mutually.
2. extrusion cycle packing tool of high pressure packing according to claim 1 is characterized in that described ball seat is a cylindrical tube, and its upper port is the arc sphere, forms with spheroid to be sealed and matched, and slides between lower cone and the filling central tube to cooperate.
3. extrusion cycle packing tool of high pressure packing according to claim 1 and 2 is characterized in that described ball seat is fixed by pin and filling central tube.
4. extrusion cycle packing tool of high pressure packing according to claim 1 is characterized in that the bottom of described lock ring sheath joins by upper isolating ring and cartridge.
5. extrusion cycle packing tool of high pressure packing according to claim 1 is characterized in that radially being provided with 2-5 through hole on the lengthening cylinder of described lower cone.
6. extrusion cycle packing tool of high pressure packing according to claim 1 is characterized in that described filling tube middle part radially is provided with 2-5 filling mouth.
7. extrusion cycle packing tool of high pressure packing according to claim 1 is characterized in that described mobile pressure ring top is provided with 2-5 through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200190020U CN201025006Y (en) | 2007-02-15 | 2007-02-15 | Once extrusion and cycling filling tool for high pressure sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200190020U CN201025006Y (en) | 2007-02-15 | 2007-02-15 | Once extrusion and cycling filling tool for high pressure sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201025006Y true CN201025006Y (en) | 2008-02-20 |
Family
ID=39098864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200190020U Expired - Fee Related CN201025006Y (en) | 2007-02-15 | 2007-02-15 | Once extrusion and cycling filling tool for high pressure sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201025006Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808604A (en) * | 2012-08-24 | 2012-12-05 | 招远金河石油设备技术开发有限公司 | Fracturing high-pressure packing and filling mechanism |
| CN102943655A (en) * | 2012-12-12 | 2013-02-27 | 山东瑞丰石油技术有限责任公司 | Rotary location tool |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN108204224A (en) * | 2018-01-24 | 2018-06-26 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of no casing pressure packing tool |
-
2007
- 2007-02-15 CN CNU2007200190020U patent/CN201025006Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808604A (en) * | 2012-08-24 | 2012-12-05 | 招远金河石油设备技术开发有限公司 | Fracturing high-pressure packing and filling mechanism |
| CN102808604B (en) * | 2012-08-24 | 2015-08-19 | 招远金河石油设备技术开发有限公司 | Pressure break high pressure packing filling body |
| CN102943655A (en) * | 2012-12-12 | 2013-02-27 | 山东瑞丰石油技术有限责任公司 | Rotary location tool |
| CN102943655B (en) * | 2012-12-12 | 2015-06-24 | 山东瑞丰石油技术有限责任公司 | Rotary location tool |
| CN106567692A (en) * | 2016-11-14 | 2017-04-19 | 王延睿 | Dual-control filling device and method for oil exploitation |
| CN108204224A (en) * | 2018-01-24 | 2018-06-26 | 胜利油田金岛实业有限责任公司胜岛石油机械厂 | A kind of no casing pressure packing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. Assignor: Kong Lisheng Contract record no.: 2010370000475 Denomination of utility model: Once extrusion and cycling filling tool for high pressure sealing Granted publication date: 20080220 License type: Exclusive License Record date: 20100823 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20120215 |