CN206917631U - Can bore can drag for the anti-pollution packer of horizontal well - Google Patents
Can bore can drag for the anti-pollution packer of horizontal well Download PDFInfo
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- CN206917631U CN206917631U CN201720747323.6U CN201720747323U CN206917631U CN 206917631 U CN206917631 U CN 206917631U CN 201720747323 U CN201720747323 U CN 201720747323U CN 206917631 U CN206917631 U CN 206917631U
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- packer
- sealing
- jump ring
- pollution
- drag
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Abstract
It the utility model is related to bore and can drag for the anti-pollution packer of horizontal well.This, which can be bored, can drag for upper lifting pipe post in the anti-pollution packer work of horizontal well, packer part of giving up is up, screen casing band dynamic sealing jump ring goes upward to fixed position disengagement, jump ring lower end is now sealed to be engaged with sealing I, sealing II, the passage between sealing jump ring and cylinder sleeve is sealed, closes fluid course, anti-pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow, form backwash cycles；Tubing string is transferred, packer is given up, and part is descending, and the 5T of pressure pipe post 3, screen casing band dynamic sealing jump ring comes downwards to fixed position disengagement, now seals position when jump ring recovers setting, and fluid course is opened, now can normally recovered the oil.The utility model, which can bore, can drag for the anti-pollution packer of horizontal well, and the probability of card tubing string is reduced provided with two kinds of modes unsealed；Packer can both bore milling deblocking, Special fishing tool can be descended above to propose deblocking again, so as to improve the deblocking rate of packer.
Description
Technical field
It the utility model is related to bore and can drag for the anti-pollution packer of horizontal well, more particularly to field of petroleum exploitation.
Background technology
At present, the flushing fluid polluted reservoir when the packer that oilfield horizontal well uses can not prevent anti-flushing well in use,
Deblocking mode is single.
Utility model content
For the drawbacks described above of prior art, provided by the utility model bore can drag for the anti-pollution packer of horizontal well, solution
To determine above-mentioned technical problem, there is provided one kind can use in oilfield horizontal well, flushing fluid polluted reservoir when can prevent anti-flushing well,
And unseal that mode is various, the packer that can be dragged for can be bored.
In order to achieve the above object, the utility model provides following technical scheme：
Can bore, which can drag for the anti-pollution packer of horizontal well, includes：Top connection, hydraulic cylinder, gag, shear pin I, piston, locking spring,
Mandrel I, cone I, lock, slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut, mandrel II, packing element I,
Packing element II, cylinder sleeve, plug, shear pin II, screen casing, sealing jump ring, sealing I, sealing II, lower contact, the shear pin I is by gag and work
Plug cut, the gag is up, descent of piston promote locking spring, cone I, lock, slips, spring, cone II, slips cover, nut,
Packing element I is descending, is extruded by cone I and cone II, and slips compression spring and expansion, slips anchoring is in internal surface of sleeve pipe, by nut
Descending extruding, packing element I and packing element II be descending and expansion, insulates sleeve ring chamber, when pressure reaches 20Mpa, slips anchoring is firm, glue
Cylinder I and packing element II is swollen, and envelope is completed, and is locked descending stopping, being locked on lock tube, shear pin II is by mandrel I when pressure reaches 20~22Mpa
Cut with plug, plug is descending to fall into screen casing inner chamber lower end, and now top connection, mandrel I, cylinder sleeve, screen casing, sealing jump ring are formed and opened
The fluid course opened, sealing jump ring lower end are engaged with sealing I, sealing II, seal the passage between sealing jump ring and cylinder sleeve,
Hydraulic cylinder is provided with the top connection, the sliding pin is arranged on fishing head, and the inner side of the packing element I and packing element II are provided with core
Axle II, the lower contact are arranged on below sealing jump ring.
Wherein, the top connection, hydraulic cylinder, gag, shear pin I, piston, locking spring, mandrel I, plug, shear pin II, screen casing
Composition packer is given up part.
Wherein, the cone I, lock, slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut, core
Axle II, packing element I, packing element II, cylinder sleeve, plug, sealing jump ring, sealing I, sealing II, lower contact form packer packing every part.
Wherein, the packer is given up and partly given up with packer packing every part disengagement realization.
Wherein, the packer is given up, and part is up, and screen casing band dynamic sealing jump ring goes upward to fixed position disengagement, now close
Envelope jump ring lower end is engaged with sealing I, sealing II, is sealed the passage between sealing jump ring and cylinder sleeve, is closed fluid course,
Anti- pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow, forms backwash cycles.
Wherein, the packer is given up, and part is descending, and pressure pipe post 3-5T, screen casing band dynamic sealing jump ring comes downwards to fixed position
Disengage, now seal position when jump ring recovers setting, fluid course is opened, now can normally recovered the oil.
Wherein, the packer is given up and partly given up with insulating pressure release realization when partial pressure reaches 20~22Mpa, is being sealed
Each voltage stabilizing 3 minutes when the pressure difference on device reaches 6MPa, 10MPa, 15MPa, 18MPa.The beneficial effects of the utility model are：This
What utility model provided, which bores, can drag for the anti-pollution packer of horizontal well, can be used in oilfield horizontal well, can prevent anti-flushing well
When flushing fluid polluted reservoir, and unseal that mode is various, the packer that can be dragged for can be bored, there are following features：
(1) modes that two kinds of deblockings are provided with the anti-pollution packer of horizontal well can be dragged for reduce the machine of card tubing string can bore
Rate；Packer can both bore milling deblocking, Special fishing tool can be descended above to propose deblocking again, so as to improve the deblocking rate of packer.
(2) can bore can drag for the anti-pollution packer of horizontal well give up partial insertion packing part when open oil reservoir passage, lift
When close oil reservoir passage, it is easy to operate.
(3) hydraulic release joint is provided with the anti-pollution packer of horizontal well can bore to drag for, if the card such as packer occurs
The phenomenon of tubing string, then put aside at hydraulic release joint, proposes the oil pipe on its top, then dialled by force or hydraulic pressure salvage bottom note
Hydraulic art tubing string.
In order to be further understood that feature of the present utility model and technology contents, refer to new below in connection with this practicality
The detailed description of type and accompanying drawing, but accompanying drawing is only provided and used with reference to explanation, is not used for being any limitation as the utility model.
Brief description of the drawings
Down and with reference to accompanying drawing, by the way that specific embodiment of the present utility model is described in detail, will make of the present utility model
Technical scheme and other beneficial effects are apparent.
Fig. 1 is that the utility model can bore the structural representation that can drag for the anti-pollution packer of horizontal well.
Embodiment
The technological means and its effect taken for further elaboration the utility model, below in conjunction with of the present utility model
Preferred embodiment and its accompanying drawing are described in detail.
Include referring to Fig. 1, can bore and can drag for the anti-pollution packer of horizontal well：Top connection, hydraulic cylinder, gag, shear pin I, work
Plug, locking spring, mandrel I, cone I, lock, slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut, mandrel
II, packing element I, packing element II, cylinder sleeve, plug, shear pin II, screen casing, sealing jump ring, sealing I, sealing II, lower contact, the shear pin I
Cut by gag and piston, the gag is up, and descent of piston promotes locking spring, cone I, lock, slips, spring, cone II, card
Watt cover, nut, packing element I are descending, are extruded by cone I and cone II, and slips compression spring and expansion, slips anchoring is in sleeve pipe
Wall, by the descending extruding of nut, packing element I and packing element II is descending and expansion, insulates sleeve ring chamber, when pressure reaches 20Mpa, slips anchor
Fixed firm, packing element I and packing element II is swollen, and envelope is completed, and is locked descending stopping, being locked on lock tube, shear pin when pressure reaches 20~22Mpa
II is cut by mandrel I and plug, and plug is descending to fall into screen casing inner chamber lower end, now top connection, mandrel I, cylinder sleeve, screen casing, sealing
Jump ring forms the fluid course opened, and sealing jump ring lower end is engaged with sealing I, sealing II, seals sealing jump ring and cylinder sleeve
Between passage, be provided with hydraulic cylinder at the top connection, the sliding pin is arranged on fishing head, the packing element I and packing element II
Inner side be provided with mandrel II, the lower contact is arranged on below sealing jump ring.
Further, the top connection, hydraulic cylinder, gag, shear pin I, piston, locking spring, mandrel I, plug, shear pin II, sieve
Pipe composition packer is given up part.
Further, the cone I, lock, slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut,
Mandrel II, packing element I, packing element II, cylinder sleeve, plug, sealing jump ring, sealing I, sealing II, lower contact form packer packing every part.
Further, the packer is given up and partly given up with packer packing every part disengagement realization.
Further, the packer is given up, and part is up, and screen casing band dynamic sealing jump ring goes upward to fixed position disengagement, now
Sealing jump ring lower end is engaged with sealing I, sealing II, is sealed the passage between sealing jump ring and cylinder sleeve, is closed fluid course
Close, anti-pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow, form backwash cycles.
Further, the packer is given up, and part is descending, and pressure pipe post 3-5T, screen casing band dynamic sealing jump ring comes downwards to fixed bit
Disengagement is put, now seals position when jump ring recovers setting, fluid course is opened, now can normally recovered the oil.
Further, the packer is given up and partly given up with insulating pressure release realization when partial pressure reaches 20~22Mpa,
Pressure difference on packer reaches each voltage stabilizing 3 minutes when 6MPa, 10MPa, 15MPa, 18MPa.Operational procedure：
It is setting：
1. lower tubular column：After design requirement drifting, scraping, well-flushing, by packer and pump lower valve, oil well pump, oil pipe successively
Connect G.I.H projected depth.
2, which connect ground, suppresses pipeline, lifts tubing string with elevator, distance of the elevator lower surface away from wellhead flange will be maintained at
0.3~0.5 meter (this height is tubing string elongation, is conveniently to close valve back seat well head, on-fixed height).
3. packer set is given up：With cementing truck, into oil pipe, small displacement water filling is suppressed, when acting on the pressure on packer
Difference reaches each voltage stabilizing 3 minutes when 6MPa, 10MPa, 15MPa, 18MPa, and the pressure difference acted on packer designs according to packer
Set level in pressure and well and determine (the instant pressure of the pressure difference=pump truck+level hydrostatic column acted on packer
Pressure).Instrument pressure release when pressure is 20~22Mpa, packer is given up, and partly disengagement, realization are given up with packing for part.
4. closing, valve is counter to suppress logical pump：(screen section for the part that will give up proposes packer to more than upper lifting pipe post 1m, is envelope
Closed every device lower end valve), anti-pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow, form backwash cycles.
5. valve opening is recovered the oil：Tubing string is transferred, pressure pipe post 3-5T, valve opening, now can normally be recovered the oil.
Deblocking：(two kinds of deblocking modes)：
1. lower Special fishing tool is salvaged
When packer needs to go out from well, lower Special fishing tool to top of fish, ballast 30-50KN or so after sand washing, delay
Slow upper lifting pipe post, when act on bridging plug when above carrying load and reaching 20-40KN, packer is unsealed, and continuously plays pipe 5.After
Continue pipe to operate to outside tubing string proposition well.
2. milling unseals：
Length 1403mm in well is stayed in after putting aside, covers milling diameter 80-114mm, slips thickness 20mm, set milling length 210mm
(set milling length is only to release grappling, not comprising packing element length, that is, can also be salvaged after covering milling 210mm to remainder).
Packer operating principle：
When water pressure generation is setting, when pressure reaches 6Mpa, liquid-driving, shear pin I4 is cut by gag 3 and piston 5, gag 3
It is up, piston 5 it is descending promote locking spring 6, cone I8, lock 9, slips 10, spring 11, cone mouth 12, slips cover 14, nut 17,
Packing element I19 is descending, is extruded by cone I8 and cone II12, and the simultaneously expansion of 10. spring of slips compression 11, slips 10 is anchored to sleeve pipe
Inwall, by 17 descending extruding of nut, packing element I19 and packing element II20 is descending and expansion, sleeve ring chamber is insulated, when pressure reaches
During 20Mpa, slips anchoring is firm, and packing element I19 and packing element II20 is swollen, and envelope is completed, and locks 9 descending stoppings, being locked on lock tube 13, presses
Shear pin II23 is cut by mandrel I7 and plug 22 when power is 20~22Mpa, and plug 22 is descending to fall into the inner chamber lower end of screen casing 24, now
Top connection 1, mandrel I7, cylinder sleeve 21, screen casing 24 seal jump ring 25 and form the fluid course opened, instrument pressure release, with insulating part
Disengage, part of giving up includes top connection 1, hydraulic cylinder 2, gag 3, nail I4, piston, locking spring 6, mandrel I7, plug 22, shear pin
II23, screen casing 24, remaining is packing part, and realization is given up.
Upper lifting pipe post, packer is given up, and part is up, and screen casing 24 goes upward to fixed position with dynamic sealing jump ring 25 and disengaged, this
When seal the lower end of jump ring 25 and be engaged with sealing I26, sealing II27, seal the passage sealed between jump ring 25 and cylinder sleeve 21,
Close fluid course.Anti- pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow, forms backwash cycles.
Tubing string is transferred, packer is given up, and part is descending, and pressure pipe post 3-5T, screen casing 24 comes downwards to fixation with dynamic sealing jump ring 25
Position is disengaged, and now seals position when jump ring 25 recovers setting, and fluid course is opened, now can normally recovered the oil.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be described with power
The protection domain that profit requires is defined.
Claims (7)
1. can bore can drag for the anti-pollution packer of horizontal well, it is characterised in that including：Top connection, hydraulic cylinder, gag, shear pin I, work
Plug, locking spring, mandrel I, cone I, lock, slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut, mandrel
II, packing element I, packing element II, cylinder sleeve, plug, shear pin II, screen casing, sealing jump ring, sealing I, sealing II, lower contact, the shear pin I
Cut by gag and piston, the gag is up, and descent of piston promotes locking spring, cone I, lock, slips, spring, cone II, card
Watt cover, nut, packing element I are descending, are extruded by cone I and cone II, and slips compression spring and expansion, slips anchoring is in sleeve pipe
Wall, by the descending extruding of nut, packing element I and packing element II is descending and expansion, insulates sleeve ring chamber, when pressure reaches 20Mpa, slips anchor
Fixed firm, packing element I and packing element II is swollen, and envelope is completed, and is locked descending stopping, being locked on lock tube, shear pin when pressure reaches 20~22Mpa
II is cut by mandrel I and plug, and plug is descending to fall into screen casing inner chamber lower end, now top connection, mandrel I, cylinder sleeve, screen casing, sealing
Jump ring forms the fluid course opened, and sealing jump ring lower end is engaged with sealing I, sealing II, seals sealing jump ring and cylinder sleeve
Between passage, be provided with hydraulic cylinder at the top connection, the sliding pin is arranged on fishing head, the packing element I and packing element II
Inner side be provided with mandrel II, the lower contact is arranged on below sealing jump ring.
2. according to claim 1 bore can drag for the anti-pollution packer of horizontal well, it is characterised in that the top connection, liquid
Cylinder pressure, gag, shear pin I, piston, locking spring, mandrel I, plug, shear pin II, screen casing composition packer are given up part.
3. according to claim 1 bore can drag for the anti-pollution packer of horizontal well, it is characterised in that the cone I, lock,
Slips, spring, cone II, lock tube, slips cover, fishing head, sliding pin, nut, mandrel II, packing element I, packing element II, cylinder sleeve, silk
Stifled, sealing jump ring, sealing I, sealing II, lower contact form packer packing every part.
4. boring according to Claims 2 or 3 can drag for the anti-pollution packer of horizontal well, it is characterised in that the packer
Give up and partly given up with packer packing every part disengagement realization.
5. according to claim 1 or 2 bore can drag for the anti-pollution packer of horizontal well, it is characterised in that the packer
Giving up, part is up, and screen casing band dynamic sealing jump ring goes upward to fixed position disengagement, now seals jump ring lower end and sealing I, sealing
II is engaged, and is sealed the passage between sealing jump ring and cylinder sleeve, is closed fluid course, anti-pump lower valve when suppressing 4~6Mpa
Pressure release, oil pipe uphole end overflow, form backwash cycles.
6. according to claim 1 or 2 bore can drag for the anti-pollution packer of horizontal well, it is characterised in that the packer
Giving up, part is descending, and pressure pipe post 3-5T, screen casing band dynamic sealing jump ring comes downwards to fixed position disengagement, now seals jump ring and recovers seat
Position during envelope, fluid course are opened, now can normally recovered the oil.
7. boring according to Claims 2 or 3 can drag for the anti-pollution packer of horizontal well, it is characterised in that the packer
Give up part with packing partial pressure reach 20~22Mpa when pressure release realize gives up, the pressure difference on packer reach 6MPa,
Each voltage stabilizing 3 minutes when 10MPa, 15MPa, 18MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747323.6U CN206917631U (en) | 2017-06-10 | 2017-06-10 | Can bore can drag for the anti-pollution packer of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720747323.6U CN206917631U (en) | 2017-06-10 | 2017-06-10 | Can bore can drag for the anti-pollution packer of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917631U true CN206917631U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720747323.6U Active CN206917631U (en) | 2017-06-10 | 2017-06-10 | Can bore can drag for the anti-pollution packer of horizontal well |
Country Status (1)
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| CN (1) | CN206917631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547589A (en) * | 2018-02-07 | 2018-09-18 | 中国石油集团西部钻探工程有限公司 | The electronic method for setting flow string under recyclable hanging packer no killing well |
| CN108661569A (en) * | 2018-07-06 | 2018-10-16 | 陕西双威石油机械有限公司 | A kind of environment protection multifunctional oil extraction process tubular column |
| CN112127827A (en) * | 2020-10-22 | 2020-12-25 | 中国海洋石油集团有限公司 | Large-drift-diameter packer |
-
2017
- 2017-06-10 CN CN201720747323.6U patent/CN206917631U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547589A (en) * | 2018-02-07 | 2018-09-18 | 中国石油集团西部钻探工程有限公司 | The electronic method for setting flow string under recyclable hanging packer no killing well |
| CN108547589B (en) * | 2018-02-07 | 2020-02-21 | 中国石油集团西部钻探工程有限公司 | Method for producing tubular column without killing well by electric setting recoverable hanging packer |
| CN108661569A (en) * | 2018-07-06 | 2018-10-16 | 陕西双威石油机械有限公司 | A kind of environment protection multifunctional oil extraction process tubular column |
| CN112127827A (en) * | 2020-10-22 | 2020-12-25 | 中国海洋石油集团有限公司 | Large-drift-diameter packer |
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