CN201705278U - Open hole self-expansion annular packer - Google Patents
Open hole self-expansion annular packer Download PDFInfo
- Publication number
- CN201705278U CN201705278U CN2010202188845U CN201020218884U CN201705278U CN 201705278 U CN201705278 U CN 201705278U CN 2010202188845 U CN2010202188845 U CN 2010202188845U CN 201020218884 U CN201020218884 U CN 201020218884U CN 201705278 U CN201705278 U CN 201705278U
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- CN
- China
- Prior art keywords
- self
- rubber tube
- expanding
- expanding rubber
- oil
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011230 binding agent Substances 0.000 claims description 14
- 230000011218 segmentation Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract description 15
- 239000003129 oil well Substances 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002175 menstrual effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The open hole self-expanding annular packer is applied to oil well downhole packing of oil well annular. One end of the pipe body is connected with a coupling in a threaded manner, and the other end of the pipe body is provided with an external thread. The outer surface of the pipe body is coated with high-temperature resistant adhesive in sections. The surface of the high-temperature resistant adhesive is respectively bonded with an oil-meeting self-expansion rubber cylinder and a water-meeting self-expansion rubber cylinder, a distance is reserved between the oil-meeting self-expansion rubber cylinder and the water-meeting self-expansion rubber cylinder, and the oil-meeting self-expansion rubber cylinder and the water-meeting self-expansion rubber cylinder are bonded on the outer surface of the tube body by adopting mutual staggered arrangement. The effect is as follows: the expansion setting can be realized by the reaction of the expansion material and the fluid in the shaft, so as to seal the oil well annulus and realize the sectional packing of the oil-water well. In addition, the drift diameter of the packer is larger and is the same as the connected oil casing, thereby being beneficial to improving the yield; the operation tool can be conveniently put into the operation tool in the later period.
Description
Technical field
The utility model relates to the petroleum drilling technology field, and the special-purpose downhole packer of particularly a kind of oil well is a kind of bore hole self-expanding annular space packer.
Background technology
At present, the most complex mechanical construction that adopt of packer that the oil field is commonly used are suppressed or rotation mode is realized setting by hydraulic pressure.What wherein open hole packer adopted is the fill-type structure, and there is complicated operation in the fill-type open hole packer, and filling is unreliable, and cycle sealing life is short, uses during particularly long section horizontal well multistage packing, and operation easier is big, has a big risk, and is difficult to guarantee that every grade of packing is effective.
Chinese patent publication number: CN201354617 provides a kind of self-expanding formula packer.Mainly form by box cupling, parent tube, baffle ring and expansion packing element.Around the outer wall of parent tube, be with the expansion packing element, be fixed with baffle ring at the two ends of expansion packing element.Adopt snap ring to fix between baffle ring and the parent tube.The other end of baffle ring is around the outer wall of expansion packing element end.Behind oil reservoir, the expansion packing element is met oil or is met automatic expansion of water and sets in the down-hole, can adapt to the shape of irregular bore hole after packing element expands, and is adjacent to the borehole wall, realizes the oil well delamination subsection efect under the self-expanding formula packer.Packing element does not shrink after expanding and finishing, and is adjacent to the borehole wall all the time, guarantees to set up-to-standard.
The utility model content
The purpose of this utility model is: a kind of bore hole self-expanding annular space packer is provided, adopts and meet oil, water-swellable material, expanding by expanding material and the reaction of pit shaft inner fluid sets, and reaches sealing oil well annular space, makes oil-water well segmentation packing.
The technical solution adopted in the utility model is: bore hole self-expanding annular space packer, mainly by body, meet oily self-expanding rubber tube, meet water self-expanding rubber tube and box cupling is formed, be connected with box cupling at the threaded one end of body, at the other end of body external screw thread is arranged.It is characterized in that: the external surface segmentation at body scribbles high temperature resistant binder.Described high temperature is between 130～160 degree.Be bonded with the oily self-expanding rubber tube of chance on the high temperature resistant binder surface respectively and meet water self-expanding rubber tube, meet oily self-expanding rubber tube and meet between the water self-expanding rubber tube distance is arranged, and meet oily self-expanding rubber tube and meet water self-expanding rubber tube adopts the body that interlaced arrangement is bonded on body external surface, promptly following bonding of meeting oily self-expanding rubber tube meets water self-expanding rubber tube, below meeting water self-expanding rubber tube, this meets oily self-expanding rubber tube, interlaced opening for bonding one.
Meet the external surface of oily self-expanding rubber tube and the external surface of chance water self-expanding rubber tube and be coated with impermeable cloth,,, cause unexpected the expansion to prevent that rubber tube contacts with oil or water in transportation way, storage process as Polypropylence Sheet.
Described body is oil pipe or sleeve pipe.
In vulcanizer, carry out in the bonding process, carry out bonding simultaneously and sulfuration, can improve the adhesion of meeting oily self-expanding rubber tube, meeting water self-expanding rubber tube and body.Bonding and sulfuration is carried out synchronously, effectively improves the sealing of bore hole annulus.
The beneficial effects of the utility model: the utility model bore hole self-expanding annular space packer, can expand by expanding material and the reaction of pit shaft inner fluid sets, and reaches sealing oil well annular space, makes oil-water well segmentation packing.In addition, can also satisfy at horizontal well and be lowered to the requirement that overcomes frictional resistance in the process.Compare with inflatable packer with traditional slip-type, owing to do not have complex mechanical construction, the reliability height, cost is lower, and on-site construction processes obtains simplifying.The latus rectum of this packer is bigger, stimulates the menstrual flow identically with the tubing and casing that is connected, and helps improving output, is convenient to being lowered to of later stage power tool.The packer external diameter is littler, is applied to the open hole well best results, and pipe string is lowered to the possibility that is hampered in the process and reduces, and cement flowing in annular space is also unaffected during well cementation.The packing element of packer is arranged at interval for the packing element of meeting oil expansion and two kinds of rubber of water-swellable, helps chance oil and meet the water elastomeric material fully absorbing down-hole liquid, helps expansion, reaches the sealed separation effect of bore hole environment.
Description of drawings
Fig. 1 is the utility model bore hole self-expanding annular space packer construction schematic diagram.
Among the figure, 1. body is 2. met oily self-expanding rubber tube, 3. meets water self-expanding rubber tube, 4. box cupling.
The specific embodiment
Embodiment 1: is example with 10 meters long oil pipes as the bore hole self-expanding annular space packer of body 1, and the utility model is described in further detail.
Consult Fig. 1.The utility model bore hole self-expanding annular space packer mainly is made up of oil pipe body 1, the oily self-expanding rubber tube 2 of chance, chance water self-expanding rubber tube 3 and tubing coupling 4.10 meters of oil pipe body 1 length.Threaded one end at oil pipe body 1 is connected with a tubing coupling 4, at the other end of oil pipe body 1 external screw thread is arranged.External surface at oil pipe body 1 divides four sections to scribble high temperature resistant binder.High temperature resistant binder can high temperature resistant 150 degree.
Scribble 1.5 meters one section high temperature resistant binders downwards at the external surface of oil pipe body 1 and apart from 0.8 meter, lower end of tubing coupling 4, on this section high temperature resistant binder, be bonded with and meet water self-expanding rubber tube 3 (1.5 meters of length); Scribbling 1.5 meters one section high temperature resistant binders downwards apart from this section chance 0.8 meter, water self-expanding rubber tube 3 lower ends, on this section high temperature resistant binder, be bonded with and meet oily self-expanding rubber tube 2 (1.5 meters of length); Scribbling 1.5 meters one section high temperature resistant binders downwards apart from this section chance 0.8 meter, oily self-expanding rubber tube 2 lower ends, on this section high temperature resistant binder, be bonded with and meet water self-expanding rubber tube 3 (1.5 meters of length); Scribbling 1.5 meters one section high temperature resistant binders downwards apart from this section chance 0.8 meter, water self-expanding rubber tube 3 lower ends, on this section high temperature resistant binder, be bonded with and meet oily self-expanding rubber tube 2 (1.5 meters of length).
Be coated with the impermeable Polypropylence Sheet of one deck respectively at two sections external surface and two sections external surfaces of meeting water self-expanding rubber tube 3 of meeting oily self-expanding rubber tube 2.
Oil pipe body 1 meets the API standard, and whole bonding process carries out in vulcanizing press.Oil pipe body 1 integral body is sent in the vulcanizing press, rubber raw materials is clamp-oned mould, under the certain temperature and pressure condition, make it to be shaped, adhere to simultaneously on the oil pipe body 1.
Claims (3)
1. bore hole self-expanding annular space packer, mainly form by body (1), chance oily self-expanding rubber tube (2), chance water self-expanding rubber tube (3) and box cupling (4), threaded one end at body (1) is connected with box cupling (4), at the other end of body (1) external screw thread is arranged; It is characterized in that: the external surface segmentation at body (1) scribbles high temperature resistant binder; Be bonded with chance oily self-expanding rubber tube (2) on the high temperature resistant binder surface respectively and meet water self-expanding rubber tube (3), meet oily self-expanding rubber tube (2) and meet between the water self-expanding rubber tube (3) distance is arranged, and meet the external surface of oily self-expanding rubber tube (2) and chance water self-expanding rubber tube (3) body (1) that the interlaced arrangement of employing is bonded on body (1), promptly following bonding of meeting oily self-expanding rubber tube (2) meets water self-expanding rubber tube (3), below meeting water self-expanding rubber tube (3), this meets oily self-expanding rubber tube (2), interlaced opening for bonding one.
2. bore hole self-expanding annular space packer according to claim 1 is characterized in that: meet the external surface of oily self-expanding rubber tube (2) and the external surface of chance water self-expanding rubber tube (3) and be coated with impermeable cloth.
3. bore hole self-expanding annular space packer according to claim 1 and 2, it is characterized in that: described body (1) is oil pipe or sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188845U CN201705278U (en) | 2010-05-31 | 2010-05-31 | Open hole self-expansion annular packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202188845U CN201705278U (en) | 2010-05-31 | 2010-05-31 | Open hole self-expansion annular packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705278U true CN201705278U (en) | 2011-01-12 |
Family
ID=43442433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202188845U Expired - Lifetime CN201705278U (en) | 2010-05-31 | 2010-05-31 | Open hole self-expansion annular packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705278U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304935A (en) * | 2011-06-21 | 2012-01-04 | 邯郸市伟业地热开发有限公司 | Geothermal well outflow water temperature regulator |
| CN106246143A (en) * | 2016-08-26 | 2016-12-21 | 中国石油化工股份有限公司 | The water control method of a kind of water outlet oil reservoir and control water sand control pipe thereof |
| CN107859501A (en) * | 2017-12-28 | 2018-03-30 | 河北鸿凯石油科技有限公司 | A kind of self-expanding card seals device |
-
2010
- 2010-05-31 CN CN2010202188845U patent/CN201705278U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304935A (en) * | 2011-06-21 | 2012-01-04 | 邯郸市伟业地热开发有限公司 | Geothermal well outflow water temperature regulator |
| CN102304935B (en) * | 2011-06-21 | 2013-11-06 | 邯郸市伟业地热开发有限公司 | Geothermal well outflow water temperature regulator |
| CN106246143A (en) * | 2016-08-26 | 2016-12-21 | 中国石油化工股份有限公司 | The water control method of a kind of water outlet oil reservoir and control water sand control pipe thereof |
| CN107859501A (en) * | 2017-12-28 | 2018-03-30 | 河北鸿凯石油科技有限公司 | A kind of self-expanding card seals device |
| CN107859501B (en) * | 2017-12-28 | 2020-12-04 | 河北鸿凯石油科技有限公司 | Self-expansion clamping and sealing device |
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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 |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |