CN201027526Y - Supercharging equilibration packer - Google Patents
Supercharging equilibration packer Download PDFInfo
- Publication number
- CN201027526Y CN201027526Y CNU2007200121389U CN200720012138U CN201027526Y CN 201027526 Y CN201027526 Y CN 201027526Y CN U2007200121389 U CNU2007200121389 U CN U2007200121389U CN 200720012138 U CN200720012138 U CN 200720012138U CN 201027526 Y CN201027526 Y CN 201027526Y
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- packing element
- steel ball
- sheath
- overcoat
- well
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Abstract
A booster balance packer relates to a packer for well, which solves heavy repair of well due to no unsetting or incomplete unsetting of the prior packer. The structure of the utility model is that an upper bond is connected with a clipping spring sheath, a setting cylinder is arranged between the upper bond and a central pipe, the setting cylinder is fixed with the clipping spring sheath by a setting cutting nail. A clipping spring is arranged on the setting cylinder. The setting cylinder is sealed with a steel ball sheath by an O-shaped sealing ring. The clipping spring is connected with the steel ball sheath connected with the central pipe which is connected with a lower bond, wherein, the steel ball sheath is connected with a steel ball seat through steel balls, wherein, the steel ball seat is provided with a standing valve which is provided with a spring. A tubing upper sheath is connected with a tubing lower sheath by a tubing. The central pipe is arranged inside the tubing. The tubing lower sheath is connected with a well cleaning sheath. A well cleaning valve and a well cleaning valve spring are arranged inside the well cleaning sheath, wherein, the well cleaning valve spring is arranged inside a spring base and the well cleaning sheath is connected with a sand-proof sheath by a connecting sheath. The utility model has the advantage of thorough unsetting.
Description
Technical field:
The utility model relates to a kind of well packer, is a kind of supercharging balance packer specifically.
Background technology:
Existing packer exists not deblocking or the halfway situation of deblocking when workover treatment, can cause the well overhaul, even cause well to scrap, and a large amount of human and material resources are wasted in the well overhaul, if well is scrapped then and can be brought bigger economic loss.
Summary of the invention:
In order to solve the problem of above-mentioned existence, the utility model provide a kind of deblocking easily, the packer of supercharging balance completely; Goal of the invention of the present utility model is achieved through the following technical solutions: supercharging balance packer: comprise top connection (1), lower contact (35), central tube (20), packing element (21), the O RunddichtringO, described central tube (20) is double-deck central tube, top connection (1) is connected with jump ring overcoat (2), setting fluid cylinder (4) is installed between top connection (1) and the central tube (20), setting shear pin (5) will set fluid cylinder (4) and be fixed on the jump ring overcoat (2), set fluid cylinder (4) and be provided with jump ring (6), set fluid cylinder (4) by O RunddichtringO and steel ball cover (7) sealing, jump ring overcoat (2) is connected with steel ball cover (7), steel ball cover (7) is connected with central tube (20), central tube (20) is connected with lower contact (35), steel ball cover (7) is connected by steel ball (8) with steel ball seat (13), standing valve (16) is housed on steel ball seat (13), spring (14) is housed on standing valve (16), be connected by packing element (21) between the overcoat (22) under overcoat on the packing element (19) and the packing element, the fuse of packing element (21) is an integral structure, be shaped on paddle hole (39) at packing element fuse middle part, central tube (20) is installed in the packing element (21), overcoat under the packing element (22) is connected with well-flushing overcoat (32), in well-flushing overcoat (32), be provided with flushing valve (27) and flushing valve spring (28), flushing valve spring (28) is installed in the spring base (29), and well-flushing overcoat (32) is connected with sand control cover (34) by adapter sleeve (33).
The beneficial effects of the utility model: the utility model adopts said structure, because packing element adopts the rigidity packing element, be that the packing element fuse is that an elongated pipe is communicated with, like this when packing element expands, just rubber part expands, packing element length is changed, and the volume that therefore sets in the packing element of back can not change.The sulfuration area of rubber and steel part strengthens in addition, makes packing element pressure-bearing height, and back of the body phenomenon can not occur turning over.Behind the packer setting, the entrance pressure hole is promptly shut, so the inner permanent high pressure that keeps of packing element, Incoercibility because of hydrone, therefore the casing pressure that packing element bore is the pressure reduction of pressing in casing pressure and the packing element, has improved the withstand voltage properties of packing element so greatly, has improved the voltage withstand class of packer, when casing pressure during greater than the packing element internal pressure, because of the incompressible principle of hydrone, the also supercharging thereupon of pressure in the packing element, balance keep-ups pressure, the packing element sealing load increases like this, seals more reliable.Behind the packer setting, on establish the jump ring retaining mechanism, effectively prevented the automatic deblocking of packer.Designed lock ball mechanism between packing element and the joint that is connected tubing string, lock ball is locked with both during installation, and packing element produces displacement when preventing to go into the well.Set the back lock ball both are thrown off, for deblocking provides condition.Packing element top installs and fixes valve, when bearing casing pressure, standing valve is locked with packing element and central tube part, prevent that packing element from moving down, during supreme casing pressure, standing valve restores to the original state under the effect of spring force, even the elastic force of spring can not rebound standing valve, owing to for the inclined-plane contact, still standing valve can be retracted original position between standing valve and the central tube, can not tighten phenomenon to appearance.The well-flushing passage adopts the structure of double-deck central tube, has increased the well-flushing flow, guarantees the multilayer well-flushing, washes the shaft bottom.Flushing valve adopts the dual fail-safe structure, even flushing valve can not be closed in the well-flushing rear spring, water filling can guarantee that still flushing valve closes once more.Divide into the sand control cover, prevent that foreign material from entering packer inside, influences deblocking.The utility model supercharging balance packer has overcome the form of structure that packer in the past adopts the deblocking shear pin, as long as and the frictional force that overcomes inner several cushion rubbers just can, the upper lifting pipe post, treat a few minutes after, the water in the packing element flows out from weep hole, packing element recovery deblocking.
Description of drawings:
Fig. 1 is the structural representation of supercharging balance packer;
Fig. 2 is the structural representation of supercharging balance packer setting state;
Fig. 3 is the structural representation of supercharging balance packer well-washing state;
Fig. 4 is the structural representation of supercharging balance packer deblocking state.
The specific embodiment:
Supercharging balance packer: comprise top connection 1, lower contact 35, central tube 20, packing element 21, central tube 20 is double-deck central tube, top connection 1 is connected with jump ring overcoat 2, and with O RunddichtringO 3 sealing, setting fluid cylinder 4 is installed between top connection 1 and the central tube 20, setting shear pin 5 will set fluid cylinder 4 and be fixed on the jump ring overcoat 2, set fluid cylinder 4 and be provided with jump ring 6, set fluid cylinder 4 by O RunddichtringO 10 and 7 sealings of steel ball cover, jump ring overcoat 2 is connected with steel ball cover 7, steel ball cover 7 is connected with central tube 20, between central tube 20 and the steel ball seat 13 O RunddichtringO 12 is housed, central tube 20 is connected with lower contact 35, steel ball cover 7 is connected by steel ball 8 with steel ball seat 13, steel ball stifled 9 is connected with steel ball seat 13, standing valve 16 is housed on steel ball seat 13, spring 14 is housed on standing valve 16, O RunddichtringO 15, be connected by packing element 21 between the overcoat 22 under overcoat 19 and the packing element on the packing element, the fuse of packing element 21 is an integral structure, be shaped on paddle hole 39 at packing element fuse middle part, O RunddichtringO 17 is housed on the overcoat 19 on the packing element, 18, central tube 20 is installed in the packing element 21, overcoat 22 is connected with well-flushing overcoat 32 under the packing element, overcoat 22 is equipped with O RunddichtringO 23 with the outer inner room of well-flushing under the packing element, in well-flushing overcoat 32, be provided with flushing valve 27 and flushing valve spring 28, O RunddichtringO 24 is housed on flushing valve 32,25,26, flushing valve spring 28 is installed in the spring base 29, and well-flushing overcoat 32 is connected with sand control cover 34 by adapter sleeve 33.Between adapter sleeve 33 and the well-flushing overcoat 32 O RunddichtringO 30 is housed, 20 of flushing valve 27 and central tubes are equipped with O RunddichtringO 31.
Operating principle of the present utility model:
Packer setting: when packer setting, suppress from oil pipe, hydraulic pressure water enters from the inlet opening 36 on the steel ball cover 7, by gap between steel ball cover 7 and the steel ball seat 13, the inlet opening 37 on the steel ball seat 13, the inlet opening 38 on the packing element on the overcoat 19, paddle hole 39 on packing element 21 skeletons, flow to packing element 21 inside, packing element is expanded, the sealing oil sets annular space.When pressure reaches 7-9MPa, setting fluid cylinder 4 moves down under pressure, to set shear pin 5 cuts off, the fluid cylinder 4 that sets that moves down blocks up the inlet opening on the steel ball cover 7 36, because all there is the twice rubber sealing at the two ends up and down of inlet opening 1, the water under high pressure of packing element inside just can not flow out like this, and how many oil pipes bears again and press, and packing element inside is pressurized no longer all.In packing element 21 expansion processes, because the packing element fuse adopts rigidity to connect, therefore rubber part expands and the packing element total length can not change, that is to say when bearing casing pressure, the area of packing element inside can not change, because the Incoercibility of hydrone has guaranteed that the high pressure of packing element inside does not run off, and has guaranteed the effect that sets of packer.After shear pin is cut off, continue to suppress to 10MPa, packer setting is complete, and in the process of setting, jump ring 6 snaps in the jump ring groove of jump ring overcoat 2 locked, has effectively prevented the automatic deblocking phenomenon of packer.Steel ball 8 loses the supporting that sets fluid cylinder 4 simultaneously, falls in the steel ball groove that sets fluid cylinder 4.
Packer well-washing: during well-flushing, from packing element upper end oil jacket annular space well-flushing,, promote flushing valve 27 and move down when last casing pressure during greater than the elastic force of flushing valve spring 28, well washing hole on the well-flushing overcoat 32 40 is got out of the way, flushing fluid is by well washing hole 41 on the overcoat on the packing element 19, the well washing hole 42 on the central tube 20, and the well washing hole 40 from well-flushing overcoat 32 flows out well-flushings, when stopping washing, under the effect of well-flushing spring 28 elastic force, flushing valve 27 returns are closed the well washing hole on the well-flushing overcoat 32 40.In case the elastic force of flushing valve spring 28 can not be when well washing hole 40 be closed on the well-flushing overcoat 32, water filling once more by the inlet opening on the central tube 20 44, can be closed the well-flushing passage with flushing valve 27 pushed home again.Because the lifting surface area of well washing hole 40 both sides of well-flushing overcoat 32 equates, so the packing element lower end has when pressure well-flushing passage can not open, prevent packing element up and down casing pressure be communicated with, do not have the effect of separating oil reservoir.When well-flushing, pressure is born in the packing element upper end, moves down in order to prevent packing element, on steel ball seat 13 standing valve has been installed, and promotes standing valve 16 and move inwards when pressing, and central tube 20 and steel ball seat 13 is locked, when stopping pressing, in the effect pop into position of spring 14.
Packer deblocking: during deblocking, the upper lifting pipe cornice moves top connection 1, jump ring overcoat 2, sets fluid cylinder 4, move on the steel ball cover 7, central tube 20, lower contact 35, weep hole on the steel ball seat 13 43 is got out of the way, water in the packing element is discharged from the weep hole 43 on the steel ball seat 13, wait a few minutes, after treating the water emptying in the packing element, packing element reinstatement deblocking.On the power of lifting have only about 200Kg, the deblocking pulling force is little, deblocking is thorough easily.
Claims (1)
1. supercharging balance packer: comprise top connection (1), lower contact (35), central tube (20), packing element (21), the O RunddichtringO, it is characterized in that: described central tube (20) is double-deck central tube, top connection (1) is connected with jump ring overcoat (2), setting fluid cylinder (4) is installed between top connection (1) and the central tube (20), setting shear pin (5) will set fluid cylinder (4) and be fixed on the jump ring overcoat (2), set fluid cylinder (4) and be provided with jump ring (6), set fluid cylinder (4) by O RunddichtringO and steel ball cover (7) sealing, jump ring overcoat (2) is connected with steel ball cover (7), steel ball cover (7) is connected with central tube (20), central tube (20) is connected with lower contact (35), steel ball cover (7) is connected by steel ball (8) with steel ball seat (13), standing valve (16) is housed on steel ball seat (13), spring (14) is housed on standing valve (16), be connected by packing element (21) between the overcoat (22) under overcoat on the packing element (19) and the packing element, the fuse of packing element (21) is an integral structure, be shaped on paddle hole (39) at packing element fuse middle part, central tube (20) is installed in the packing element (21), overcoat under the packing element (22) is connected with well-flushing overcoat (32), in well-flushing overcoat (32), be provided with flushing valve (27) and flushing valve spring (28), flushing valve spring (28) is installed in the spring base (29), and well-flushing overcoat (32) is connected with sand control cover (34) by adapter sleeve (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200121389U CN201027526Y (en) | 2007-05-17 | 2007-05-17 | Supercharging equilibration packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200121389U CN201027526Y (en) | 2007-05-17 | 2007-05-17 | Supercharging equilibration packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201027526Y true CN201027526Y (en) | 2008-02-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200121389U Expired - Fee Related CN201027526Y (en) | 2007-05-17 | 2007-05-17 | Supercharging equilibration packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201027526Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333916B (en) * | 2008-08-07 | 2012-07-18 | 晁建伟 | Closed well washing device |
| CN106939777A (en) * | 2017-05-10 | 2017-07-11 | 西南石油大学 | A kind of well blowout preventing packer |
| CN111119786A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Packer, setting tool and drilling and completion integrated method |
| CN111119785A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Packer and drilling string comprising same |
| CN112324382A (en) * | 2020-11-03 | 2021-02-05 | 中国石油化工股份有限公司 | Plugging device and method for full-current-collection type gas production profile testing instrument |
-
2007
- 2007-05-17 CN CNU2007200121389U patent/CN201027526Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101333916B (en) * | 2008-08-07 | 2012-07-18 | 晁建伟 | Closed well washing device |
| CN106939777A (en) * | 2017-05-10 | 2017-07-11 | 西南石油大学 | A kind of well blowout preventing packer |
| CN106939777B (en) * | 2017-05-10 | 2018-12-21 | 西南石油大学 | A kind of well blowout preventing packer |
| CN111119786A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Packer, setting tool and drilling and completion integrated method |
| CN111119785A (en) * | 2018-11-01 | 2020-05-08 | 中国石油化工股份有限公司 | Packer and drilling string comprising same |
| CN112324382A (en) * | 2020-11-03 | 2021-02-05 | 中国石油化工股份有限公司 | Plugging device and method for full-current-collection type gas production profile testing instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20130517 |