CN103541681A - High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells - Google Patents
High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells Download PDFInfo
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- CN103541681A CN103541681A CN201310515986.1A CN201310515986A CN103541681A CN 103541681 A CN103541681 A CN 103541681A CN 201310515986 A CN201310515986 A CN 201310515986A CN 103541681 A CN103541681 A CN 103541681A
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Abstract
The invention provides a high-temperature-resistant high-pressure-resistant cross-class compression type seal component for oil and gas field bushes and barefoot wells. The seal component is especially suitable for sealing the barefoot wells and annular spaces between the bushes and tubular columns. The seal component comprises three rubber cylinders. The rubber cylinders at two ends are made of metal and polymer materials. The middle rubber cylinder is easy to compress and made of polymer materials. The seal component is reliable in performance and can resist hydrogen sulfide corrosion, the highest working temperature of the seal component can reach 500 DEG F, and pressure borne by the seal component can reach 12500Psi.
Description
Technical field
The present invention relates to a kind of high temperature high voltage resistant for oil gas field sleeve pipe and open hole well across pound stage compression type black box, be specially adapted to the annular space between shutoff bore hole, sleeve pipe and tubing string, so that complete the underground work such as drilling well, seperated layer water injection, well-flushing, well cementation, test, completion, acidifying and water blockoff.
Background technology
In recent years, along with improving constantly of exploration and development technology, underground operation tool is the object that reaches several work, not only wants annular space between the increasing tubing string of shutoff and sleeve pipe, and will can be used in annular space between plugging tubing string and bore hole.
And black box is as the important component part of downhole tool, its heatproof, withstand voltage and corrosion resistance directly have influence on the result of use of downhole tool and application life etc.When black box is worked in having corrosive high temperature subsurface environment, need bear High Pressure Difference, black box shoulder is easily extruded destruction by High Pressure Difference, causes seal failure, thereby causes the withstand voltage difference of downhole tool low, give to shorten application life.Along with the application of bore hole downhole tool, black box not only want can plugging tubing string and sleeve pipe between larger annular space, but also can plugging tubing string and the irregular space of the bore hole borehole wall.Existing conventional downhole tool black box is difficult to meet above-mentioned working condition requirement, therefore needs the normal instructions for use that a kind of reliable black box guarantees downhole tool badly.
Summary of the invention
Object of the present invention is exactly in order to overcome the deficiencies in the prior art, provide a kind of high temperature high voltage resistant for sleeve pipe and bore hole across pound stage compression type black box, sealing assembly property is reliable, and can hydrogen sulfide corrosion-resistant, its operating temperature reaches as high as 500 ℉, bear pressure and can reach 12,500Psi.
The object of the invention is to be achieved by the following technical measures: a kind of high temperature high voltage resistant for sleeve pipe and bore hole across pound stage compression type black box, described black box is divided into three packing elements, two ends packing element is the combination packing element that metal and macromolecular material are made, and middle packing element is the easy compression packing element that macromolecular material is made.
In technique scheme, described two ends packing element is made by back band, protrusion-dispelling metal ring and macromolecular material, described back band is the wire gauze that the braiding of corrosion resistant metal silk forms, wire gauze and the macromolecular material of described back band are solidified into one through HTHP, and the inwall of described two ends packing element is provided with for preventing that macromolecular material is extruded the protrusion-dispelling metal ring of destruction.
In technique scheme, described middle packing element is solidified and forms through HTHP by macromolecular material.
In technique scheme, described macromolecular material is one or more the mixture in acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorubber, 4 third fluorubber, FFKM, polytetrafluoroethylene (PTFE).
The present invention compared with the prior art tool has the following advantages:
1. adopted high temperature resistant, corrosion-resistant, high-intensity macromolecular material, the heatproof of black box can reach 500 ℉, and pressure-bearing can reach 12,500Psi, and can hydrogen sulfide corrosion-resistant.
2. two ends packing element has certain elasticity, not only can plugging tubing string and sleeve pipe between annular space, and can plugging tubing string and the bore hole borehole wall between irregular space, and can bear bidirectional pressure difference.
3. adopt the structure of three packing elements, black box easily compresses, simple in structure, and good sealing effect, long service life.
Accompanying drawing explanation
Fig. 1 is that the present invention is for the axial section across pound stage compression type black box of the high temperature high voltage resistant of sleeve pipe and bore hole.
Wherein: 1. two ends packing element, 2. in the middle of packing element, 1-a. back band, 1-b. protrusion-dispelling metal ring, 1-c. macromolecular material.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present embodiment provide a kind of high temperature high voltage resistant for sleeve pipe and bore hole across pound stage compression type black box, described black box is divided into three independent packing elements, two ends packing element 1 is the combination packing element that metal and macromolecular material are made, the easy compression packing element that middle packing element 2 is made for macromolecular material.
Described two ends packing element 1 is made by back band 1-a, protrusion-dispelling metal ring 1-b and macromolecular material 1-c, described back band 1-a is the wire gauze that corrosion-resistant 316 stainless steel wire braidings form, wire gauze and macromolecular material 1-c, at 170 ℃, under 64 tons of pressure, become tubular through 60 minutes hot-press solidifyings.Wire gauze part dip-coating bonding adhesive before solidifying, guarantees the adhesion strength after solidifying with macromolecular material.The inwall of two ends packing element 2 is provided with protrusion-dispelling metal ring 1-b, and protrusion-dispelling metal ring 1-b is mainly positioned at macromolecular material part, when black box is compressed, can play supporting role, prevents that macromolecular material from being extruded destruction because being stressed from inwall.
In the middle of described, packing element 2 injects mould by macromolecular material, at 170 ℃, under 64 tons of pressure, through 60 minutes hot-press solidifyings, becomes tubular.
Above-mentioned macromolecular material is one or more the mixture in acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorubber, 4 third fluorubber, FFKM, polytetrafluoroethylene (PTFE).
It is that rubber is main potted component that macromolecular material is take in the present invention, and in use, three independent packing elements are used in conjunction with, and the wire gauze in the packing element of two ends opens gradually under compression force, and two ends packing element produces the further shutoff sleeve pipe of deformation or bore hole internal pore.Black box adopts three packing element structures, utilizes two ends packing element to regulate compression height, can be used for the larger casing annulus of shutoff and open-hole annulus, and can bear bidirectional pressure difference.The heatproof of black box can reach 500 ℉, and pressure-bearing can reach 12,500Psi, and can hydrogen sulfide corrosion-resistant.
Claims (4)
1. the high temperature high voltage resistant for sleeve pipe and bore hole across pound stage compression type black box, it is characterized in that: described black box is divided into three packing elements, two ends packing element is the combination packing element that metal and macromolecular material are made, and middle packing element is the easy compression packing element that macromolecular material is made.
2. the high temperature high voltage resistant for sleeve pipe and bore hole according to claim 1 across pound stage compression type black box, it is characterized in that: described two ends packing element is made by back band, protrusion-dispelling metal ring and macromolecular material, described back band is the wire gauze that the braiding of corrosion resistant metal silk forms, wire gauze and the macromolecular material of described back band are solidified into one through HTHP, and the inwall of described two ends packing element is provided with for preventing that macromolecular material is extruded the protrusion-dispelling metal ring of destruction.
High temperature high voltage resistant for sleeve pipe and bore hole according to claim 1 across pound stage compression type black box, it is characterized in that: in the middle of described, packing element is solidified and to form through HTHP by macromolecular material.
According to the high temperature high voltage resistant for sleeve pipe and bore hole described in claim 1 or 2 or 3 across pound stage compression type black box, it is characterized in that: described macromolecular material is one or more the mixture in acrylonitrile-butadiene rubber, hydrogenated nitrile-butadiene rubber, fluorubber, 4 third fluorubber, FFKM, polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515986.1A CN103541681A (en) | 2013-10-28 | 2013-10-28 | High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310515986.1A CN103541681A (en) | 2013-10-28 | 2013-10-28 | High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells |
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| Publication Number | Publication Date |
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| CN103541681A true CN103541681A (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310515986.1A Pending CN103541681A (en) | 2013-10-28 | 2013-10-28 | High-temperature-resistant high-pressure-resistant cross-class compression type seal component for bushes and barefoot wells |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504386A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | High-performance shaft-end O-shaped rubber sealing ring |
| CN107060685A (en) * | 2017-06-30 | 2017-08-18 | 四川达灿石油设备有限公司 | High intensity compression type packer tubling |
| CN108060905A (en) * | 2016-11-07 | 2018-05-22 | 天津汇铸石油设备科技有限公司 | High temperature and pressure packer |
| CN111535774A (en) * | 2020-05-21 | 2020-08-14 | 天鼎联创密封技术（北京）有限公司 | Shoulder pad, sealing cylinder and packer |
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| CN201818277U (en) * | 2010-10-28 | 2011-05-04 | 中国石油天然气股份有限公司 | Compression type open hole packer |
| CN202132015U (en) * | 2011-07-12 | 2012-02-01 | 重庆智延科技发展有限公司 | Sealed tube for compression type packer for oil-gas field |
| CN202176305U (en) * | 2011-04-29 | 2012-03-28 | 中国石油化工股份有限公司 | Self-expandable packer with protrusion-resisting protective device |
| CN202810772U (en) * | 2012-09-03 | 2013-03-20 | 中国石油化工股份有限公司 | Thermal recovery combined sealing device |
| CN203022683U (en) * | 2012-12-26 | 2013-06-26 | 安东石油技术（集团）有限公司 | Composite rubber sleeve packer |
| 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 |
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2013
- 2013-10-28 CN CN201310515986.1A patent/CN103541681A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201818277U (en) * | 2010-10-28 | 2011-05-04 | 中国石油天然气股份有限公司 | Compression type open hole packer |
| CN202176305U (en) * | 2011-04-29 | 2012-03-28 | 中国石油化工股份有限公司 | Self-expandable packer with protrusion-resisting protective device |
| CN202132015U (en) * | 2011-07-12 | 2012-02-01 | 重庆智延科技发展有限公司 | Sealed tube for compression type packer for oil-gas field |
| CN202810772U (en) * | 2012-09-03 | 2013-03-20 | 中国石油化工股份有限公司 | Thermal recovery combined sealing device |
| CN203022683U (en) * | 2012-12-26 | 2013-06-26 | 安东石油技术（集团）有限公司 | Composite rubber sleeve packer |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504386A (en) * | 2015-12-30 | 2016-04-20 | 崇夕山 | High-performance shaft-end O-shaped rubber sealing ring |
| CN108060905A (en) * | 2016-11-07 | 2018-05-22 | 天津汇铸石油设备科技有限公司 | High temperature and pressure packer |
| CN108060905B (en) * | 2016-11-07 | 2024-02-20 | 天津汇铸石油设备科技有限公司 | High-temperature high-pressure packer |
| CN107060685A (en) * | 2017-06-30 | 2017-08-18 | 四川达灿石油设备有限公司 | High intensity compression type packer tubling |
| CN111535774A (en) * | 2020-05-21 | 2020-08-14 | 天鼎联创密封技术（北京）有限公司 | Shoulder pad, sealing cylinder and packer |
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Application publication date: 20140129 |