CN105587287A - Expansion type packer - Google Patents
Expansion type packer Download PDFInfo
- Publication number
- CN105587287A CN105587287A CN201610124104.2A CN201610124104A CN105587287A CN 105587287 A CN105587287 A CN 105587287A CN 201610124104 A CN201610124104 A CN 201610124104A CN 105587287 A CN105587287 A CN 105587287A
- Authority
- CN
- China
- Prior art keywords
- central tube
- pressing ring
- tube wall
- centralizing
- tube
- 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
- 238000012856 packing Methods 0.000 claims description 28
- 238000005987 sulfurization reaction Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 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
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
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)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention relates to a water injection, oil extraction and fracturing downhole tool for oil fields, and provides an expansion type packer to solve technical problems of traditional packers. The expansion type packer comprises a center pipe, a rubber sleeve, an upper centralizing pressing ring and a lower centralizing pressing ring. The rubber sleeve is composed of a framework layer and an outer rubber layer. The two ends of the framework layer and the two ends of the center pipe are bonded through a binding agent and vulcanized into a whole. The two ends of the framework layer are sleeved with the upper centralizing pressing ring and the lower centralizing pressing ring respectively so that the ends of the framework layer and the pipe wall of the center pipe can be pressed tightly. The surface of the framework layer, the surface of the upper centralizing pressing ring and the surface of the lower centralizing pressing ring are covered with the outer rubber layer, and the outer rubber layer, the framework layer, the upper centralizing pressing ring and the lower centralizing pressing ring are vulcanized into a whole. A radial through pressure port is formed in the pipe wall of the middle of the center pipe. The expansion type packer has the advantages that the structure is reasonable and compact, installation is convenient and fast, and the service life is remarkably prolonged.
Description
Technical field
The present invention relates to the oil-water well water filling of a kind of oil field, oil recovery and pressure break downhole tool, specifically refer to a kind of inflatable packer.
Background technology
In oil and natural gas industry, for multilayered reservoir oil reservoir, the domestic conventional packer generally using is used for card envelope stratified operation, as water filling, acidifying, pressure break, sand control, oil recovery etc., conventional packer construction is shown in shown in accompanying drawing 1, it comprises packing element 1, and packing element 1 is made up of inner glue layer 11, casing play 12 and outer glue-line 13, is fixedly connected with spindle nose 2 in the sulfuration of the two ends of packing element 1, when work, connection spindle nose 2 is connected on implement, to the interior injection water under high pressure of packing element 1, after packing element 1 expands for packing in well. but when this conventional packer work, packing element 1 internal pressure increases, when packing element expands, connect spindle nose 2 and be easy to occur cracking with the sulfuration fixed position of packing element 1, cause connection spindle nose 2 to come off, for solving this technical problem, generally adopt at present the collar 3 shown in accompanying drawing 2 to clamp fixing, when work, the two ends that the collar 3 are sleeved on to packing element 1 clamp fixing to connecting spindle nose 2, prevent that the glue-line that connects spindle nose 2 places is split up separation, but the problem of drawing is thus special fastening means need to be set the collar 3 is connected with implement, its attended operation trouble, and the collar 3 easily comes off when operation, cause down-hole reliability to reduce, exist interlayer to be communicated with, packing seal failure, the technical problems such as instrument later stage deblocking difficult treatment.
Summary of the invention
For solving conventional packer existing technical problem, the invention provides the inflatable packer of a kind of novel structure, easy to operate, stable performance.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is: a kind of inflatable packer, it is characterized in that: comprise central tube, packing element, upper righting pressure ring and lower righting pressure ring, described packing element is made up of casing play and outer glue-line, the two ends of described casing play are by adhesive and central tube two ends are bonding and sulfuration is integrated, the two ends that upper righting pressure ring and lower righting pressure ring are set in casing play compress the tube wall of the end of casing play and central tube, outer glue-line covers casing play, surface the sulfuration of upper righting pressure ring and lower righting pressure ring are integrated, on the tube wall of central tube middle part, be provided with the pressure port radially connecting.
Further, the pressure port on described central tube tube wall is manhole, and pressure port is multiple, and it is around being distributed on the middle tube wall of central tube.
Further, the pressure port on described central tube tube wall is multiple narrow gaps of axially offering along central tube, and multiple narrow gaps are around being distributed on the middle tube wall of central tube.
Further, the pressure port on described central tube tube wall is combined by manhole and narrow gap, and described narrow gap is axially offered along central tube by manhole edge, and pressure port is multiple, around being distributed on the middle tube wall of central tube.
Further, the two ends that packing element is stretched out respectively in the end at described central tube two ends form connection spindle nose, connect on spindle nose with API standard oil gas thread.
Beneficial effect of the present invention is: compactness rational in infrastructure, quick and easy for installation, significant prolongation, can be damaged and again be vulcanized new packing element recovery packing function after packing element by removings even if packing element damages after ring service life, thereby provided a kind of dependable performance, downhole tool with low cost for scene.
Brief description of the drawings
The structure cutaway view that accompanying drawing 1 is the packer that provides in prior art.
The structural representation that accompanying drawing 2 is the collar that provides in prior art.
The structure cutaway view that accompanying drawing 3 is packer provided by the invention.
Accompanying drawing 4 is the distributed architecture schematic diagram of pressure port on central tube.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
As shown in Figure 3, a kind of inflatable packer, comprise central tube 4, packing element 1, upper righting pressure ring 5 and lower righting pressure ring 6, described packing element is made up of casing play 12 and outer glue-line 13, the two ends of described casing play 12 are by adhesive 7 and central tube 4 two ends are bonding and sulfuration is integrated, the two ends that upper righting pressure ring 5 and lower righting pressure ring 6 are set in casing play 12 compress the tube wall of the end of casing play and central tube, outer glue-line 13 covers casing play 12, surface the sulfuration of upper righting pressure ring 5 and lower righting pressure ring 6 are integrated, on the tube wall of central tube middle part, be provided with the pressure port 8 radially connecting.
The course of work of this packer is: this packer is connected on implement, in packer, injects water under high pressure, water under high pressure is penetrated by the pressure port 8 on central tube 4, thereby casing play 12 and outer glue-line 13 risings are played to the operations such as packing, pressure break, completion. Because packing element 1 is in rising process, thereby the two ends of casing play 12 are pinned the two ends that can prevent casing play 12 by upper righting pressure ring 5 and lower righting pressure ring 6 and are separated with central tube 4 and cause packing failure, simultaneously by upper righting pressure ring 5 and lower righting pressure ring 6 directly sulfuration can efficient solution in the inside of packing element determine conventional packer troublesome poeration while connecting, need to prepare the technical problems such as special fastening means.
As shown in Figure 3, the two ends that packing element 1 is stretched out respectively in the end at central tube 4 two ends form connection spindle nose 2, connect on spindle nose 2 with API standard oil gas thread (attached not shown).
Shape to pressure port 8 and layout have been done further research in the present embodiment, as shown in Figure 4, in the present embodiment, preferably a kind of structure of pressure port, it is combined by manhole 81 and narrow gap 82, narrow gap 82 is axially offered along central tube by manhole 81 edges, and pressure port is multiple, around being distributed on the middle tube wall of central tube. Adopt multiple narrow gaps 82 can make the press water of central tube 4 interior injections along casing play 12 uniform stressed in the axial direction, make the quick rising of casing play 12, prevent that a certain concentration of local of casing play 12 is stressed, after prolonged and repeated use, cause local elasticity to reduce, and manhole 81 can make the press water in central tube 4 enter into fast between central tube 4 and casing play 12, and after EO, can make press water enter into fast in central tube 4 and be discharged from. Certainly, pressure port 8 can adopt separately manhole or adopt separately the structure of narrow gap to arrange, its arrangement is all to arrange around the mode being distributed on the middle tube wall of central tube.
Claims (5)
1. an inflatable packer, it is characterized in that: comprise central tube, packing element, upper righting pressure ring and lower righting pressure ring, described packing element is made up of casing play and outer glue-line, the two ends of described casing play are by adhesive and central tube two ends are bonding and sulfuration is integrated, the two ends that upper righting pressure ring and lower righting pressure ring are set in casing play compress the tube wall of the end of casing play and central tube, surface sulfuration that outer glue-line covers casing play, upper righting pressure ring and lower righting pressure ring are integrated, and on the tube wall of central tube middle part, are provided with the pressure port radially connecting.
2. a kind of inflatable packer according to claim 1, is characterized in that: the pressure port on described central tube tube wall is manhole, pressure port is multiple, and it is around being distributed on the middle tube wall of central tube.
3. a kind of inflatable packer according to claim 1, is characterized in that: the pressure port on described central tube tube wall is multiple narrow gaps of axially offering along central tube, multiple narrow gaps are around being distributed on the middle tube wall of central tube.
4. a kind of inflatable packer according to claim 1, it is characterized in that: the pressure port on described central tube tube wall is combined by manhole and narrow gap, described narrow gap is axially offered along central tube by manhole edge, pressure port is multiple, around being distributed on the middle tube wall of central tube.
5. a kind of inflatable packer according to claim 1, is characterized in that: the two ends that packing element is stretched out respectively in the end at described central tube two ends form and connect spindle nose, connect on spindle nose with API standard oil gas thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124104.2A CN105587287A (en) | 2016-03-07 | 2016-03-07 | Expansion type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124104.2A CN105587287A (en) | 2016-03-07 | 2016-03-07 | Expansion type packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105587287A true CN105587287A (en) | 2016-05-18 |
Family
ID=55927165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610124104.2A Pending CN105587287A (en) | 2016-03-07 | 2016-03-07 | Expansion type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105587287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050183A (en) * | 2016-08-10 | 2016-10-26 | 威海丰泰新材料科技股份有限公司 | Anti-creep fracturing expand-sealing device |
| CN111456675A (en) * | 2020-04-30 | 2020-07-28 | 大庆昊运橡胶制品有限公司 | Core-pulling-free large-displacement expansion type rubber barrel fracturing assembly |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349204A (en) * | 1981-04-29 | 1982-09-14 | Lynes, Inc. | Non-extruding inflatable packer assembly |
| CN2434428Y (en) * | 2000-04-30 | 2001-06-13 | 大庆油田有限责任公司井下作业分公司 | Hydraulic power expansion packer |
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN203114238U (en) * | 2013-03-17 | 2013-08-07 | 中国石油集团渤海钻探工程有限公司 | Compression packer rubber tube |
| CN203175470U (en) * | 2013-04-08 | 2013-09-04 | 山东创裕实业有限公司 | Hydraulic expanding packer |
| CN103541680A (en) * | 2013-10-24 | 2014-01-29 | 威海丰泰橡胶技术有限公司 | Expansion expanding and sealing rubber sleeve |
| CN103764943A (en) * | 2011-09-13 | 2014-04-30 | 韦尔泰克有限公司 | Annular barrier with safety metal sleeve |
| CN104563954A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Steel pipe expansion recovery type external casing packer |
| CN204344059U (en) * | 2014-12-24 | 2015-05-20 | 大庆市福万通石油科技有限公司 | A kind of big orifice expanding packing element with spring shoulder operator guards |
| CN205400665U (en) * | 2016-03-07 | 2016-07-27 | 威海丰泰新材料科技股份有限公司 | Expansion type sealer |
-
2016
- 2016-03-07 CN CN201610124104.2A patent/CN105587287A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4349204A (en) * | 1981-04-29 | 1982-09-14 | Lynes, Inc. | Non-extruding inflatable packer assembly |
| CN2434428Y (en) * | 2000-04-30 | 2001-06-13 | 大庆油田有限责任公司井下作业分公司 | Hydraulic power expansion packer |
| US20030196795A1 (en) * | 2002-04-17 | 2003-10-23 | Andrew Kutac | Inflatable packer with prestressed bladder |
| CN103764943A (en) * | 2011-09-13 | 2014-04-30 | 韦尔泰克有限公司 | Annular barrier with safety metal sleeve |
| CN203114238U (en) * | 2013-03-17 | 2013-08-07 | 中国石油集团渤海钻探工程有限公司 | Compression packer rubber tube |
| CN203175470U (en) * | 2013-04-08 | 2013-09-04 | 山东创裕实业有限公司 | Hydraulic expanding packer |
| CN103541680A (en) * | 2013-10-24 | 2014-01-29 | 威海丰泰橡胶技术有限公司 | Expansion expanding and sealing rubber sleeve |
| CN104563954A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Steel pipe expansion recovery type external casing packer |
| CN204344059U (en) * | 2014-12-24 | 2015-05-20 | 大庆市福万通石油科技有限公司 | A kind of big orifice expanding packing element with spring shoulder operator guards |
| CN205400665U (en) * | 2016-03-07 | 2016-07-27 | 威海丰泰新材料科技股份有限公司 | Expansion type sealer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050183A (en) * | 2016-08-10 | 2016-10-26 | 威海丰泰新材料科技股份有限公司 | Anti-creep fracturing expand-sealing device |
| CN111456675A (en) * | 2020-04-30 | 2020-07-28 | 大庆昊运橡胶制品有限公司 | Core-pulling-free large-displacement expansion type rubber barrel fracturing assembly |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160518 |