CN106121581A - Pony packer - Google Patents
Pony packer Download PDFInfo
- Publication number
- CN106121581A CN106121581A CN201610612004.4A CN201610612004A CN106121581A CN 106121581 A CN106121581 A CN 106121581A CN 201610612004 A CN201610612004 A CN 201610612004A CN 106121581 A CN106121581 A CN 106121581A
- Authority
- CN
- China
- Prior art keywords
- seating nipple
- piston
- well
- flushing
- packing element
- 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
- 238000011010 flushing procedure Methods 0.000 claims abstract description 39
- 210000002445 nipple Anatomy 0.000 claims abstract description 38
- 238000012856 packing Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000005987 sulfurization reaction Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
- E21B33/1285—Packers; Plugs with a member expanded radially by axial pressure by fluid pressure
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of pony packer, it is characterized in that upper seating nipple is fixed by deblocking pin with sealing piston, upper seating nipple is connected with dummy piston, dummy piston lower end is connected with lower seating nipple upper end, well-flushing piston component is sleeved on well-flushing seating nipple, and the outer circumference surface of well-flushing piston component is slidably matched with lower seating nipple inner peripheral surface；Lower seating nipple connects adapter sleeve, and retainer ring lower end arranges packing element assembly；Well-flushing ring is connected by release pin with fixed piston, and fixed piston links together with central canal, equipped with release cylinder between outer working tube and release plunger.The present invention maintains extruding force and the setting force of packing element, sets the most effectively, improves the voltage endurance capability of packer；Deblocking is simple, and direct upper lifting pipe post realizes the deblocking successively of multiple packer, improves the safety of deblocking when can unseal.
Description
Technical field
The invention belongs to equipment when a kind of oil well produces, particularly a kind of pony packer.
Background technology
Packer is that oil field is for the requisite downhole tool of formation testing, oil recovery, water filling and oil formation improvement.Need to be during oil recovery
Down-hole configuring multi-layer packer carries out oil production by layer.But when well workover, downhole tool and Multi-layer separated device need to be proposed.Due to many
Propping up packer is series connection, thus the frictional force superposition that packing element is to sleeve pipe, if full payload is beyond the pulling force of aboveground working rig, by right
Uphole equipment causes danger, affects the properly functioning of equipment, and therefore the applicant have developed that a kind of have can classification deblocking
Packer, it is achieved multilamellar is recovered the oil, but owing to the retainer ring of the packing element assembly upper end in this equipment is by steel ball axial restraint
At the outer peripheral face of well-flushing seating nipple, thus forming the multiple spot stress of circumference, producing stress concentrates, thus easily causes parts and damage
Bad, affect normal operation.
Most domestic oil field has entered mid-later development phase, due to geologic(al) factor and the impact of engineering factor, oil-water well
Downhole conditions constantly deteriorates, and part oil, well sleeve pipe occur in that damage in various degree, and set damages, casing deformation well is continuously increased.Conventional
Packer cannot meet production needs, has had a strong impact on exploitation and the later stage operation in oil field.Sidetracked hole is to solve the increasing of oil field later stage
Producing an important process, application side drilling technology can repair part casing deformation well, however sidetracked hole below position of windowing all under
Entering Φ 101.6mm sleeve pipe, existing packer all cannot enter down and work；Secondly for becoming set, casing damaged well carries out casing repairing,
But cost is relatively big, and effect is undesirable, easily causes repeatedly.
Summary of the invention
It is an object of the invention to: adapt to the use requirement of side tracking, keep extruding force and the setting force of packing element, sit
Envelope is the most effectively, it is possible to bear bidirectional pressure difference, improves voltage endurance capability；Deblocking is simple, can realize the deblocking successively of multiple packer,
Improve the safety of deblocking.When avoiding unsealing, packing element not exclusively bounces back and causes production accident, it is ensured that packing element relaxation shrinkage during deblocking.
The technical scheme that the present invention provides is as follows: include top connection, upper seating nipple, lower seating nipple, central canal, well-flushing piston
Assembly, retainer ring, packing element assembly, outer working tube, lower contact, it is characterized in that: central canal top connects sealing piston, upper seating nipple
Being fixed by deblocking pin with sealing piston, upper seating nipple is threaded connection with dummy piston, dummy piston lower end and lower work
Making cylinder upper end to connect, dummy piston lower end is connected with central canal, and well-flushing piston component is sleeved on well-flushing seating nipple, well-flushing piston
The outer circumference surface of assembly is slidably matched with lower seating nipple inner peripheral surface；Lower seating nipple connects adapter sleeve, and retainer ring lower end arranges glue
Cartridge module, packing element assembly is connected as one with the sulfuration of limit packing element by baffle ring, and limit packing element connects as one with pad sulfuration, pad,
Middle packing element, well-flushing ring vulcanize connection successively；Well-flushing ring is connected by release pin with fixed piston, and fixed piston is with central canal even
Being connected together, clip spring seat is connected with fixed piston, and jump ring is arranged on clip spring seat, equipped with releasing between outer working tube and release plunger
Putting cylinder, outer working tube is connected with lower contact, and lower contact is connected with the lower end of central canal.
The positive effect of the present invention: maintained the extruding force of packing element after this packer setting by lock ring, locked by slips
Ring maintains setting force, makes this packer setting the most effective, it is possible to bear bidirectional pressure difference, improves the resistance to pressure energy of this packer
Power；Additionally this packer, this removing seal for packer is simple, and direct upper lifting pipe post realizes multiple packer successively when can unseal
Deblocking, improves the safety of deblocking.Simultaneously this packer contrast when deblocking common packer due to packing element and pad be sulfur
Turn to one be not split when avoiding deblocking packing element not exclusively bounce back and cause production accident, it is ensured that packing element retraction during deblocking
Rate.
Accompanying drawing explanation
Fig. 1 is the superstructure schematic diagram of the present invention.
Fig. 2 is substructure schematic diagram of the present invention.
Component serial number in figure: top connection 1, upper seating nipple 2, sealing piston 3, deblocking pin 4, central canal 5, dummy piston
6, dummy piston 7, well-flushing piston component 8, well-flushing seating nipple 9, adapter sleeve 10, retainer ring 11, baffle ring 12, limit packing element 13, middle glue
Cylinder 14, pad 15, well-flushing ring 16, release pin 17, fixed piston 18, jump ring 19, clip spring seat 20, release cylinder 21, release plunger
22, outer working tube 23, lower contact 24, lower seating nipple 25.
Detailed description of the invention
See Fig. 1,2, the concrete structure of the present invention is as follows: top connection 1 upper end is internal taper pipe screw thread, lower end pass through outer spiral shell
Stricture of vagina is connected with upper seating nipple 2；Central canal 5 upper and lower end is respectively provided with entrance pressure hole b, a, and central canal 5 upper periphery face is threaded
Sealing piston 3, upper seating nipple 2 is fixed by deblocking pin 4 with sealing piston 3, and upper seating nipple 2 passes through screw thread with dummy piston 6
Connecting, dummy piston 6 lower end external screw thread is connected with lower seating nipple 25 upper end female thread, dummy piston 7 lower end female thread and center
The external screw thread of pipe 5 connects, and lower seating nipple 25 arranges well-flushing inlet c, and well-flushing piston component 8 is sleeved on well-flushing seating nipple,
The outer circumference surface of well-flushing piston component 8 is slidably matched with lower seating nipple 25 inner peripheral surface.Retainer ring 11 top is thin-walled cartridge type,
Processing several elongated slots uniform on it, lower seating nipple 25 is threaded connection adapter sleeve 10, and retainer ring 11 lower end arranges packing element assembly,
Packing element assembly is connected as one with limit packing element 13 sulfuration by baffle ring 12, and limit packing element 13 connects as one with pad 15 sulfuration, pad
15, middle packing element 14, well-flushing ring 16 vulcanize connection successively.Well-flushing ring 16 is connected by release pin 17 with fixed piston 18, fixing
Piston 18 is linked together with central canal 5 by screw thread, and clip spring seat 20 is connected with fixed piston 18 by screw thread, and jump ring 20 is pacified
Being contained on clip spring seat 20, equipped with release cylinder 21 between outer working tube 23 and release plunger 22, outer working tube 23 leads to lower contact 24
Crossing threaded, lower contact 24 is threaded connection with the lower end of central canal 5.
Operation principle:
Set:
When adding hydraulic pressure by central canal 5 entrance pressure hole a, b, make to move in release plunger 22, promote and move, by release pin on release cylinder 21
Nail 17 is cut off, and now release cylinder 21 compresses limit packing element 13 with jump ring 19 phase snap-in location, well-flushing ring 16 so that it is diametric(al) becomes
Shape, completes to seal casing annulus effect.The entrance pressure hole f entrance pressure of upper seating nipple 2 acts on dummy piston 6, plays balance pressure
Effect, prevent unseal pin 4 unseal in advance.
Well-flushing:
During well-flushing, by well head to the annular space pressurization flushing fluid of oil pipe with sleeve pipe, entered by the well-flushing inlet c of upper seating nipple 2
Entering, promote well-flushing piston component 8 to move up, expose well-flushing inlet c, flushing fluid is by central canal 5 and well-flushing seating nipple 9
Annular clearance d enter well-flushing liquid outlet e, such flushing fluid is walked around packing element position and is entered next and packer, completes well-flushing work
Make.
Deblocking:
Deblocking is to carry out after well-flushing works, i.e. well-flushing piston component 8 is separated from retainer ring 12 elastic claw, above puts on joint
1 drives upper seating nipple 2, as long as pull-up little force can cut off deblocking pin 4, upper seating nipple 2 drives in retainer ring 11 continuation
OK.The packing element now compressed is released, owing to packing element assembly is connected as one with limit packing element 13 sulfuration by baffle ring 12, and limit glue
Cylinder 13 connects as one with pad 15 sulfuration, beneficially packing element assembly release, thus the most smoothly by this grade of removing seal for packer.
Claims (1)
1. a pony packer, including top connection, upper seating nipple, lower seating nipple, central canal, well-flushing piston component, fixes
Ring, packing element assembly, outer working tube, lower contact, it is characterized in that: central canal top connects sealing piston, upper seating nipple is lived with sealing
Fill in and fixed by deblocking pin；Upper seating nipple is threaded connection with dummy piston, dummy piston lower end and lower seating nipple upper end
Connecting, dummy piston lower end is connected with central canal；Well-flushing piston component is sleeved on well-flushing seating nipple, outside well-flushing piston component
Periphery is slidably matched with lower seating nipple inner peripheral surface；Lower seating nipple connects adapter sleeve, and retainer ring lower end arranges packing element assembly, glue
Cartridge module is connected as one by the sulfuration of baffle ring and limit packing element, and limit packing element vulcanizes with pad and connects as one, and pad, middle packing element, washes
Well ring vulcanizes connection successively；Well-flushing ring is connected by release pin with fixed piston, and fixed piston links together with central canal,
Clip spring seat is connected with fixed piston, and jump ring is arranged on clip spring seat, equipped with release cylinder, outer work between outer working tube and release plunger
Making cylinder to be connected with lower contact, lower contact is connected with the lower end of central canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612004.4A CN106121581A (en) | 2016-07-31 | 2016-07-31 | Pony packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612004.4A CN106121581A (en) | 2016-07-31 | 2016-07-31 | Pony packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106121581A true CN106121581A (en) | 2016-11-16 |
Family
ID=57254287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610612004.4A Pending CN106121581A (en) | 2016-07-31 | 2016-07-31 | Pony packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106121581A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640351A (en) * | 1985-10-02 | 1987-02-03 | Arrow Oil Tools, Inc. | Sealing packer |
| CN2528927Y (en) * | 2001-10-19 | 2003-01-01 | 中国石油天然气股份有限公司 | Side drilling small diameter packer |
| CN2559781Y (en) * | 2002-07-18 | 2003-07-09 | 阜新市石油工具厂 | Balance pressure packer |
| CN101498204A (en) * | 2009-02-25 | 2009-08-05 | 大庆油田有限责任公司 | Balance type step-by-step releasable flushing packer |
| CN201695986U (en) * | 2010-07-03 | 2011-01-05 | 孙月东 | Packer capable of cleaning well |
| CN201810259U (en) * | 2010-09-27 | 2011-04-27 | 梁伟成 | Graded-unsealing well-flushing type packer |
| CN102071899A (en) * | 2011-01-24 | 2011-05-25 | 梁伟成 | Gradually unpacked washable well packer |
| CN102168537A (en) * | 2011-04-20 | 2011-08-31 | 梁伟成 | Washable well type packer capable of unsealing by levels |
| CN202017473U (en) * | 2011-05-07 | 2011-10-26 | 张明星 | Progressively unsealed environment-friendly well flushing packer |
| CN102337854A (en) * | 2011-09-05 | 2012-02-01 | 梁伟成 | Washable well type gradual unpacking packer |
| CN202467752U (en) * | 2012-03-28 | 2012-10-03 | 毛元红 | Stepwise deblocking packer |
| CN202990956U (en) * | 2012-12-27 | 2013-06-12 | 阜新市石油工具厂 | Reverse well washing and grading deblocking water injection packer with minor diameter |
-
2016
- 2016-07-31 CN CN201610612004.4A patent/CN106121581A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640351A (en) * | 1985-10-02 | 1987-02-03 | Arrow Oil Tools, Inc. | Sealing packer |
| CN2528927Y (en) * | 2001-10-19 | 2003-01-01 | 中国石油天然气股份有限公司 | Side drilling small diameter packer |
| CN2559781Y (en) * | 2002-07-18 | 2003-07-09 | 阜新市石油工具厂 | Balance pressure packer |
| CN101498204A (en) * | 2009-02-25 | 2009-08-05 | 大庆油田有限责任公司 | Balance type step-by-step releasable flushing packer |
| CN201695986U (en) * | 2010-07-03 | 2011-01-05 | 孙月东 | Packer capable of cleaning well |
| CN201810259U (en) * | 2010-09-27 | 2011-04-27 | 梁伟成 | Graded-unsealing well-flushing type packer |
| CN102071899A (en) * | 2011-01-24 | 2011-05-25 | 梁伟成 | Gradually unpacked washable well packer |
| CN102168537A (en) * | 2011-04-20 | 2011-08-31 | 梁伟成 | Washable well type packer capable of unsealing by levels |
| CN202017473U (en) * | 2011-05-07 | 2011-10-26 | 张明星 | Progressively unsealed environment-friendly well flushing packer |
| CN102337854A (en) * | 2011-09-05 | 2012-02-01 | 梁伟成 | Washable well type gradual unpacking packer |
| CN202467752U (en) * | 2012-03-28 | 2012-10-03 | 毛元红 | Stepwise deblocking packer |
| CN202990956U (en) * | 2012-12-27 | 2013-06-12 | 阜新市石油工具厂 | Reverse well washing and grading deblocking water injection packer with minor diameter |
Non-Patent Citations (1)
| Title |
|---|
| 江汉石油管理局采油工艺研究所和江汉石油学院采油教研室编: "《封隔器理论基础与应用》", 30 November 1983 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161116 |
|
| WD01 | Invention patent application deemed withdrawn after publication |