CN203905890U - High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole - Google Patents
High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole Download PDFInfo
- Publication number
- CN203905890U CN203905890U CN201320667771.7U CN201320667771U CN203905890U CN 203905890 U CN203905890 U CN 203905890U CN 201320667771 U CN201320667771 U CN 201320667771U CN 203905890 U CN203905890 U CN 203905890U
- Authority
- CN
- China
- Prior art keywords
- seal assembly
- packing element
- high temperature
- casing pipe
- black box
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 13
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 238000012856 packing Methods 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 230000006378 damage Effects 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 abstract description 6
- 239000005060 rubber Substances 0.000 abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 19
- 229920000459 Nitrile rubber Polymers 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229920006169 Perfluoroelastomer Polymers 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model provides a high temperature and high pressure resistant ultra-pound class compressive seal assembly especially suitable for capping annular space of an uncased hole, a casing pipe and in a tubular column. The seal assembly is formed by three rubber cylinders; rubber cylinders on two ends are respectively composite rubber cylinders made from metal and high polymer material; and the rubber cylinder in the middle of the seal assembly is a compressive rubber cylinder made from high polymer material. The high temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for the casing pipe and the uncased hole possesses reliable performance and is sulfuretted hydrogen corrosion resistant; and work temperature of the seal assembly can reach as high as 500 FTC and bearing pressure can be as high as 12500Psi.
Description
Technical field
The utility model relate 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 result of use and the application life etc. of downhole tool.Black box, having while working in corrosive high temperature subsurface environment, need bear High Pressure Difference, and black box shoulder is easily extruded destruction by High Pressure Difference, causes seal failure, thereby causes the withstand voltage difference of downhole tool low, application life is to shortening.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 a kind of normal instructions for use of reliable black box guarantee downhole tool badly.
Summary of the invention
The purpose of this utility model 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 ℉, bears pressure and can reach 12500Psi.
The purpose of this utility model is 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 up of back band, protrusion-dispelling metal ring and macromolecular material, described back band is that corrosion resistant metal silk weaves the wire gauze forming, 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 utility model 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. the structure that adopts three packing elements, black box easily compresses, simple in structure, and good sealing effect, long service life.
Brief description of the drawings
Fig. 1 is the axial section across pound stage compression type black box of the utility model for 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.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model 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 up of back band 1-a, protrusion-dispelling metal ring 1-b and macromolecular material 1-c, described back band 1-a is that corrosion-resistant 316 stainless steel wires weave the wire gauze forming, wire gauze and macromolecular material 1-c, at 170 DEG C, under 64 tons of pressure, become tubular through 60 minutes hot-press solidifyings.Wire gauze part dip-coating bonding adhesive before solidifying, ensures 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 1-c part, in the time that 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 DEG C, under 64 tons of pressure, becomes tubular through 60 minutes hot-press solidifyings.
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).
The utility model is that rubber is as main potted component taking macromolecular material, 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 (1)
- A 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, comprise two ends packing element and middle easy compression packing element, it is characterized in that: described two ends packing element is made up of back band, protrusion-dispelling metal ring and easy compression member, described back band is that corrosion resistant metal silk weaves the wire gauze forming, the wire gauze of described back band is solidified into one with easy compression member through HTHP, and the inwall of described two ends packing element is provided with for preventing that easy compression member is extruded the protrusion-dispelling metal ring of destruction; The inwall centre position of the easy compression packing element of described centre is provided with V-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667771.7U CN203905890U (en) | 2013-10-28 | 2013-10-28 | High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667771.7U CN203905890U (en) | 2013-10-28 | 2013-10-28 | High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905890U true CN203905890U (en) | 2014-10-29 |
Family
ID=51780179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320667771.7U Expired - Fee Related CN203905890U (en) | 2013-10-28 | 2013-10-28 | High temperature and high pressure resistant ultra-pound class compressive seal assembly suitable for casing pipe and uncased hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089146A (en) * | 2016-08-22 | 2016-11-09 | 天鼎联创密封技术（北京）有限公司 | Packing element, packer and bridging plug including tinsel sealing ring |
-
2013
- 2013-10-28 CN CN201320667771.7U patent/CN203905890U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089146A (en) * | 2016-08-22 | 2016-11-09 | 天鼎联创密封技术（北京）有限公司 | Packing element, packer and bridging plug including tinsel sealing ring |
| CN106089146B (en) * | 2016-08-22 | 2019-06-18 | 天鼎联创密封技术（北京）有限公司 | Packing element, packer and bridge plug including wire sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |