CN201738865U - Shaft annular hydraulic expansion packer - Google Patents
Shaft annular hydraulic expansion packer Download PDFInfo
- Publication number
- CN201738865U CN201738865U CN2010202496988U CN201020249698U CN201738865U CN 201738865 U CN201738865 U CN 201738865U CN 2010202496988 U CN2010202496988 U CN 2010202496988U CN 201020249698 U CN201020249698 U CN 201020249698U CN 201738865 U CN201738865 U CN 201738865U
- Authority
- CN
- China
- Prior art keywords
- packer
- packer body
- high pressure
- expansion capsule
- capsule
- 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 - Lifetime
Links
- 239000002775 capsule Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000012856 packing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Earth Drilling (AREA)
Abstract
The utility model relates to a shaft annular space hydraulic expansion packer; the packer body is a cylinder, the upper joint is positioned at the upper end of the packer body and is provided with internal threads, and the lower joint is positioned at the lower end of the packer body and is provided with external threads; the expansion capsule is an annular cylindrical hollow capsule which is sleeved on the packer body, the upper part and the lower part of the expansion capsule are provided with gaskets, the upper baffle plate is positioned above the expansion capsule, the lower baffle plate is positioned below the expansion capsule and is respectively fixed on the packer body by bolts; the high-pressure liquid injection nozzle is arranged on the upper horizontal plane of the expansion capsule, passes through the gasket and the upper baffle plate to be connected with the high-pressure pipeline quick connector, and is connected with the high-pressure liquid injection pipe through the high-pressure pipeline quick connector; the packer has the advantages of low cost, simple process, convenient operation, easy control and high plugging efficiency, and has good application effect and prospect in the drilling and completion processes of shallow oil and gas exploration wells, development wells and coal bed gas wells.
Description
Technical field
The utility model relates to a kind of mineshaft annulus hydraulic buckling packer.
Background technology
At present, packer mainly contains types such as mechanical compression type packer, hydraulic packer, thermal expansion packer.The mechanical compression type packer mainly is by mechanical presses effect compression packing element, makes glue become big in the footpath simply, sealing oil pipe, sleeve pipe annular space.As the Y211-115 packer, its operating principle is after packer is transferred to the precalculated position, by the put-on and delegated tubing string slip ring pin is changed to long track by short track, continue to transfer, cone struts slips, block casing wall, transfer again, cut off pin, the compression packing element, sealing oil pipe, sleeve pipe annular space, the direct deblocking of upper lifting pipe post; Hydraulic packer is to promote sleeve/urceolus compression packing element or directly make packing element bulging in casing annulus by hydraulic action, and contacts and produce certain contact pressure with internal surface of sleeve pipe, sealing oil pipe, sleeve pipe annular space.As Y344 type packer, Y441-115 back-off packer, Y241-100 packer, Y241-115 self-test sealing packer etc.The operating principle of heat expansion type packer is that the packer inflation tube inner chamber is full of expander, expander pressure build-up vaporized under the vapor (steam) temperature more than 300 ℃, high pressure expands the packer outer wall, be close to internal surface of sleeve pipe sealing oil pipe, casing annulus space, stopping annotating the back temperature descends, inner chamber loses support, and expansion cylinder shrinks, on carry and get final product deblocking.
The packer of inventing design at present both at home and abroad is mainly used in underground work such as card layer, Ka Shui, sand control, formation testing by layer, oil production by layer, seperated layer water injection in the oil and gas development process, have only minority to be applied to bore in the completion process, and nearly all packer all is to be applied to protective casing, be used to seal oil pipe, protective casing annular space or drill string, protective casing annular space space, external casing packer also is mainly used between protective casing and the well, and the adjustable sealing load formula packer that is used in the annular space between surface pipe and the drill string still belongs to blank.
The utility model content
The purpose of this utility model is a kind of hydraulic buckling packer of design, this packer is applicable to mainly that light rig does not possess and conventional blowout preventer is installed or is bored oil gas prospect pit of shallow-layer low pressure and the development well that well head in the completion process is not installed preventer, be mainly used in shutoff drill string and surface pipe annular space, play the effect that closing well and annular space build the pressure.
Mineshaft annulus hydraulic buckling packer described in the utility model is by top connection, overhead gage, and lower baffle plate, the packer body, packing ring, the expansion capsule, bolt, lower contact, the high pressure liquid injection pipe, high pressure line snap joint, the high pressure liquid injecting mouth constitutes; The packer body is a cylinder, and top connection is positioned at packer body upper end, which is provided with internal thread, and lower contact is positioned at packer body lower end, which is provided with external screw thread; The expansion capsule is an annulated column shape empty pocket, is enclosed within on the packer body, is furnished with packing ring up and down, and overhead gage is positioned at above the expansion capsule, and lower baffle plate is positioned at below the expansion capsule, respectively by being bolted on the packer body; The high pressure liquid injecting mouth is located at expansion capsule upper horizontal plane, passes packing ring and is connected with high pressure line snap joint with overhead gage, is connected with the high pressure liquid injection pipe by high pressure line snap joint.
When in boring the completion process, needing shutoff drill string and surface pipe annular space, the utility model packer is connected on the drill string by top connection and lower contact, be lowered in the surface pipe, by the high pressure liquid injection pipe, high pressure line snap joint and high pressure liquid injecting mouth are suppressed toward the interior fluid injection of expansion capsule, make the expansion capsule be subjected to compression swelling, because expansion capsule upper and lower end face is by overhead gage, lower baffle plate is lived with bolt, thereby the axial compression dilatancy is little, expansion capsule pressurized dilatancy mainly occurs in radially, week upwards, because expansion capsule and internal surface of sleeve pipe, packer body outside wall surface contact, so capsule effectively sealing drilling rod post and surface pipe annular space.
The beneficial effects of the utility model are, packer size and drill string external diameter and surface pipe internal diameter match, in shallow-layer low pressure oil pneumatic drill completion or coal seam pneumatic drill completion process, in drilling team blowout preventer, preventer are not installed, and occur in the well under the complex situations such as overflow, well kick, blowout, this packer is suppressed capsule by high pressure fluid injection pipeline can realize the adjustable pressure of spraining, the expansion character of control capsule, effectively shutoff drill string and surface pipe annular space are realized closing well.In boring the completion process for the very serious well of leakage, in the leak stopping process, pass through packer shutoff drill string and surface pipe annular space, can realize the leak stopping that builds the pressure, make loss circulation material and leak stopping mud under the effect of annulus back pressure, enter the leakage stratum as much as possible, thereby accelerate leak stopping speed and improve leak stopping efficient.This packer cost is low, technology is simple, easy to operate and be easy to control, shutoff efficient height bores in the completion process at Shallow Oil-Gas prospect pit, development well and coal bed gas well and to have good effect and prospect.
Description of drawings
Fig. 1 a mineshaft annulus hydraulic buckling packer construction schematic diagram;
Fig. 1 b mineshaft annulus hydraulic buckling packer construction schematic diagram;
Fig. 2 a mineshaft annulus hydraulic buckling packer hydraulic buckling capsule schematic diagram;
Fig. 2 b mineshaft annulus hydraulic buckling packer hydraulic buckling capsule schematic diagram;
Fig. 3 a mineshaft annulus hydraulic buckling packer capsule overhead gage schematic diagram;
Fig. 3 b mineshaft annulus hydraulic buckling packer capsule lower baffle plate schematic diagram;
Wherein: 1. top connection, 2. overhead gage, 3. lower baffle plate, 4. packer body, 5. packing ring, 6. expansion capsule, 7. bolt, 8. lower contact, 9. high pressure liquid injection pipe, 10. high pressure line snap joint, 11. high pressure liquid injecting mouths.
The specific embodiment
Mineshaft annulus hydraulic buckling packer described in the utility model is by top connection 1, overhead gage 2, and lower baffle plate 3, packer body 4, packing ring 5, expansion capsule 6, bolt 7, lower contact 8, high pressure liquid injection pipe 9, high pressure line snap joint 10, high pressure liquid injecting mouth 11 constitutes; Packer body 4 is a cylinder, and top connection 1 is positioned at packer body 4 upper ends, which is provided with internal thread, and lower contact 8 is positioned at packer body 4 lower ends, which is provided with external screw thread; Expansion capsule 6 is an annulated column shape empty pocket, is enclosed within on the packer body 4, is furnished with packing ring 5 up and down, and overhead gage 2 is positioned at above the expansion capsule 6, and lower baffle plate 3 is positioned at below the expansion capsule 6, is fixed on the packer body 4 by bolt 7 respectively; High pressure liquid injecting mouth 11 is located at expansion capsule 6 upper horizontal planes, passes packing ring 5 and is connected with high pressure line snap joint 10 with overhead gage 2, is connected with the high pressure liquid injection pipe by high pressure line snap joint 10.
Claims (1)
1. mineshaft annulus hydraulic buckling packer, by top connection, overhead gage, lower baffle plate, the packer body, packing ring, the expansion capsule, bolt, lower contact, the high pressure liquid injection pipe, high pressure line snap joint, the high pressure liquid injecting mouth constitutes; It is characterized in that: the packer body is a cylinder, and top connection is positioned at packer body upper end, which is provided with internal thread, and lower contact is positioned at packer body lower end, which is provided with external screw thread; The expansion capsule is an annulated column shape empty pocket, is enclosed within on the packer body, is furnished with packing ring up and down, and overhead gage is positioned at above the expansion capsule, and lower baffle plate is positioned at below the expansion capsule, respectively by being bolted on the packer body; The high pressure liquid injecting mouth is located at expansion capsule upper horizontal plane, passes packing ring and is connected with high pressure line snap joint with overhead gage, is connected with the high pressure liquid injection pipe by high pressure line snap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202496988U CN201738865U (en) | 2010-06-25 | 2010-06-25 | Shaft annular hydraulic expansion packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202496988U CN201738865U (en) | 2010-06-25 | 2010-06-25 | Shaft annular hydraulic expansion packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201738865U true CN201738865U (en) | 2011-02-09 |
Family
ID=43554143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202496988U Expired - Lifetime CN201738865U (en) | 2010-06-25 | 2010-06-25 | Shaft annular hydraulic expansion packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201738865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216205A (en) * | 2012-04-18 | 2013-07-24 | 北京探矿工程研究所 | Adjustable orifice sealing device for geological drilling |
| CN117722141A (en) * | 2024-02-07 | 2024-03-19 | 大庆市瑞斯德石油机械制造有限公司 | Airtight casing nipple with special threads |
-
2010
- 2010-06-25 CN CN2010202496988U patent/CN201738865U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216205A (en) * | 2012-04-18 | 2013-07-24 | 北京探矿工程研究所 | Adjustable orifice sealing device for geological drilling |
| CN117722141A (en) * | 2024-02-07 | 2024-03-19 | 大庆市瑞斯德石油机械制造有限公司 | Airtight casing nipple with special threads |
| CN117722141B (en) * | 2024-02-07 | 2024-04-26 | 大庆市瑞斯德石油机械制造有限公司 | Airtight casing nipple with special threads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |