CN201705278U - Naked eye self-expansion annular packer - Google Patents

Naked eye self-expansion annular packer Download PDF

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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
Authority
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
Application number
CN2010202188845U
Other languages
Chinese (zh)
Inventor
沈泽俊
高向前
陈健
童征
张国文
郝忠献
王跃胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
China Petroleum and Natural Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Natural Gas Co Ltd filed Critical China Petroleum and Natural Gas Co Ltd
Priority to CN2010202188845U priority Critical patent/CN201705278U/en
Application granted granted Critical
Publication of CN201705278U publication Critical patent/CN201705278U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a naked eye self-expansion annular packer, which is applied in annulation of a petroleum downhole packing oil well. One end of a pipe body is in threaded connection with a connecting hoop, and the other end thereof is provided with an external thread. The outer surface of the pipe body is coated with a high-temperature-resistant binding agent in a segmentation manner. The surface of the high-temperature-resistant binding agent is respectively bonded with an oil-encountering self-expansion rubber barrel and a water-encountering self-expansion rubber barrel which are arranged at a distance; and the oil-encountering self-expansion rubber barrel and the water-encountering self-expansion rubber barrel are arranged on the pipe body in a mutual staggered manner and bonded on the outer surface of the pipe body. The naked eye self-expansion annular packer has the effects of being capable of expanding and set-packing by reaction of an expanding material and fluid in a shaft, achieving annulation of a sealing oil well and leading the oil-water well to be packed in a segmentation manner. In addition, the packer has larger drift diameter which is same as that of a connected oil sleeve, thus being beneficial to improving yield and being convenient for descending of later-stage operating tools.

Description

Bore hole self-expanding annular space packer
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.
CN2010202188845U 2010-05-31 2010-05-31 Naked eye self-expansion annular packer Expired - Lifetime CN201705278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202188845U CN201705278U (en) 2010-05-31 2010-05-31 Naked eye self-expansion annular packer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202188845U CN201705278U (en) 2010-05-31 2010-05-31 Naked eye self-expansion annular packer

Publications (1)

Publication Number Publication Date
CN201705278U true CN201705278U (en) 2011-01-12

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Family Applications (1)

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CN2010202188845U Expired - Lifetime CN201705278U (en) 2010-05-31 2010-05-31 Naked eye self-expansion annular packer

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CN (1) CN201705278U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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CX01 Expiry of patent term

Granted publication date: 20110112

CX01 Expiry of patent term