CN204113188U - Low-temperature-resistant oil pipe hanger - Google Patents
Low-temperature-resistant oil pipe hanger Download PDFInfo
- Publication number
- CN204113188U CN204113188U CN201420551851.0U CN201420551851U CN204113188U CN 204113188 U CN204113188 U CN 204113188U CN 201420551851 U CN201420551851 U CN 201420551851U CN 204113188 U CN204113188 U CN 204113188U
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- China
- Prior art keywords
- low temperature
- temperature resistant
- seal
- group
- tubing hanger
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 13
- 241000254175 Anthonomus grandis Species 0.000 claims description 31
- 229920002379 silicone rubber Polymers 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000009466 transformation Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 3
- 239000012224 working solution Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000004945 silicone rubber Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000009418 renovation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- JKULTISBNPLSEA-UHFFFAOYSA-N [Ni].[Mo].[Mn] Chemical compound [Ni].[Mo].[Mn] JKULTISBNPLSEA-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- OGSYQYXYGXIQFH-UHFFFAOYSA-N chromium molybdenum nickel Chemical compound [Cr].[Ni].[Mo] OGSYQYXYGXIQFH-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006355 external stress Effects 0.000 description 1
- 239000011494 foam glass Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002620 polyvinyl fluoride Polymers 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000035924 thermogenesis Effects 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
- Gasket Seals (AREA)
Abstract
The utility model discloses a low temperature resistant oil pipe hanger belongs to coal bed gas exploitation field. The low temperature resistant tubing hanger comprises: the low-temperature resistant protective body is fixedly sleeved outside the oil pipe hanger body, the sealing body is fixedly sleeved outside the low-temperature resistant protective body, the outer wall of the sealing body is provided with a sealing groove, the O-shaped sealing ring is arranged in the sealing groove, the low temperature resistant sealing cap is fixed in the annular space between the sealing body and the tubing hanger body, the utility model forms a three-layer structure by the tubing hanger body, the low temperature resistant protective body, the sealing body and the low temperature resistant sealing cap, and they all adopt low temperature resistant material to make, make the utility model discloses low temperature brittleness transformation can not appear in work under low temperature environment, has solved the technical problem that low temperature working solution caused the low temperature damage to the oil pipe hanger, satisfies the production requirement of coal seam gas well coal reservoir phase transition transformation technique.
Description
Technical field
The utility model relates to coal-bed gas exploitation field, particularly the low temperature resistant boll-weevil hanger of one.
Background technology
Boll-weevil hanger is a kind of vitals realizing wellhead assembly and be connected with downhole production pipeline, and its major function hangs tubing string, annular space between Seal Oil tubing string and production string, provides the passage etc. of producing well liquid.
The boll-weevil hanger of current use comprises tubing hanger body, and the two ends up and down of tubing hanger body are equipped with internal thread, and the upper end internal thread of tubing hanger body is connected with wellhead assembly, and the lower end internal thread of tubing hanger body is connected with downhole oil tubing string.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Existing boll-weevil hanger operating temperature more than normal temperature, namely existing boll-weevil hanger can only oil-water well normally produce with routine work under use.For coal bed gas well coal seam reservoirs phase transformation renovation technique, there is low-temperature working liquid causes low temperature injury technical barrier to boll-weevil hanger.And existing boll-weevil hanger works at low temperatures and easily occurs cold temperature deficiency, do not meet the instructions for use under low-temperature working environment.
Utility model content
Do not meet the problem of the instructions for use under low-temperature working environment to solve boll-weevil hanger in prior art, the utility model embodiment provides a kind of low temperature resistant boll-weevil hanger.Described technical scheme is as follows:
A kind of low temperature resistant boll-weevil hanger, described low temperature resistant boll-weevil hanger comprises tubing hanger body, low temperature resistant protection body, seal, O-ring seals and low temperature resistant sealing cap, described tubing hanger inner body wall upper end and lower end are respectively equipped with internal thread, described low temperature resistant protection body is enclosed within described tubing hanger body exterior, described low temperature resistant protection body is fixedly connected with described tubing hanger body, it is outside that described seal is enclosed within described low temperature resistant protection body, described seal outer wall is provided with seal groove, described O-ring seals is arranged in described seal groove, annular space is formed between described seal and described tubing hanger body, described low temperature resistant sealing cap is arranged in described annular space, described seal is fixedly connected with described low temperature resistant protection body and described low temperature resistant sealing cap, and described tubing hanger body, described low temperature resistant protection body, described seal and described low temperature resistant sealing cap all adopt low temperature material to make.
Further, described tubing hanger body outer wall is provided with outer lug boss.
Further, described low temperature resistant protection body outer wall is provided with two stage steps, and described low temperature resistant protection body is enclosed within above described outer lug boss, and described low temperature resistant protection body is spacing by described outer lug boss.
Further, described seal inwall and outer wall are equipped with one-level step, and described seal is spacing by described two stage steps.
Further, described seal outer wall is divided into upper region and lower area by described seal outer wall one-level step, described seal groove comprises first group of seal groove and second group of seal groove, described first group of seal groove is arranged in described upper region, described second group of seal groove is arranged in described lower area, described O-ring seals comprises first group of O-ring seals and second group of O-ring seals, described first group of O-ring seals is arranged in described first group of seal groove, described second group of O-ring seals is arranged in described second group of seal groove, the cross sectional dimensions of described first group of O-ring seals and described second group of O-ring seals is identical.
Particularly, described low temperature resistant sealing cap inwall is provided with inner convex platform, and described inner convex platform height is 1mm ~ 2mm.
Particularly, described tubing hanger body and described seal all adopt the forging of low temperature resistant alloy steel to form.
Particularly, described low temperature resistant protection body selects glass fiber reinforced plastic to make.
Particularly, described low temperature resistant sealing cap selects silicon rubber to make.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The low temperature resistant boll-weevil hanger that the utility model embodiment provides, by tubing hanger body, low temperature resistant protection body, seal and low temperature resistant sealing cap composition three layer construction, and they all adopt low temperature resistant material to make, low temperature resistant boll-weevil hanger described in the utility model is worked at low ambient temperatures there will not be black brittleness to change, solve low-temperature working liquid causes low temperature injury technical barrier to boll-weevil hanger, meet the production requirement of coal bed gas well coal seam reservoirs phase transformation renovation technique.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the low temperature resistant boll-weevil hanger that the utility model embodiment provides;
Fig. 2 is the structural representation of the tubing hanger body that the utility model embodiment provides;
Fig. 3 is the structural representation of the low temperature resistant protection body that the utility model embodiment provides;
Fig. 4 is the structural representation of the low temperature resistant sealing cap that the utility model embodiment provides;
Fig. 5 is the structural representation of the seal that the utility model embodiment provides.
Wherein:
1 tubing hanger body, 11 internal threads, 12 outer lug boss, 2 low temperature resistant sealing caps, 21 inner convex platforms, 3 first groups of O-ring seals, 4 low temperature resistant protection bodies, 41 first order steps, 42 second level steps, 5 second groups of O-ring seals, 6 seals, 61 first groups of seal grooves, 62 second groups of seal grooves, A primary load bearing face.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of low temperature resistant boll-weevil hanger, described low temperature resistant boll-weevil hanger comprises tubing hanger body 1, low temperature resistant protection body 4, seal 6, O-ring seals and low temperature resistant sealing cap 2, described tubing hanger body 1 inwall upper end and lower end are respectively equipped with internal thread 11, it is outside that described low temperature resistant protection body 4 is enclosed within described tubing hanger body 1, described low temperature resistant protection body 4 is fixedly connected with described tubing hanger body 1, it is outside that described seal 6 is enclosed within described low temperature resistant protection body 4, described seal 6 outer wall is provided with seal groove, described O-ring seals is arranged in described seal groove, annular space is formed between described seal 6 and described tubing hanger body 1, described low temperature resistant sealing cap 2 is arranged in described annular space, described seal 6 is fixedly connected with described low temperature resistant protection body 4 and described low temperature resistant sealing cap 2, and described tubing hanger body 1, described low temperature resistant protection body 4, described seal 6 and described low temperature resistant sealing cap 2 all adopt low temperature resistant material to make.
Operating principle of the present utility model is:
The internal thread 11 of tubing hanger body 1 upper end is connected with the oil pipe of well head, and the internal thread 11 of tubing hanger body 1 lower end is connected with the oil pipe stretching into down-hole, and the lower end of tubing hanger body 1 is primary load bearing face A of the present utility model.Low temperature resistant protection body 4 is enclosed within the outside of tubing hanger body 1, low temperature resistant protection body 4 is fixedly connected with tubing hanger body 1, the inwall of low temperature resistant protection body 4 and the outer wall of tubing hanger body 1 are fitted tightly, and the upper surface of low temperature resistant protection body 4 is lower than the upper surface of tubing hanger body 1, it is outside that seal 6 is enclosed within low temperature resistant protection body 4, and seal 6 is fixedly connected with low temperature resistant protection body 4, the outer wall of the inwall of seal 6 and low temperature resistant protection body 4 is fitted tightly, and the upper surface of seal 6 is concordant with the upper surface of tubing hanger body 1, therefore between seal 6 and tubing hanger body 1, define an annular space, the lower end of low temperature resistant sealing cap 2 is stretched in described annular space, the lower surface of low temperature resistant sealing cap 2 and the upper surface of low temperature resistant protection body 4 fit tightly, weaken the impact of the axial force that low temperature resistant protection body 4 is subject to, the inwall of low temperature resistant sealing cap 2 is fixedly connected with the outer wall of tubing hanger body 1, the inwall of low temperature resistant sealing cap 2 and the outer wall of tubing hanger body 1 are fitted tightly, and the outer wall of low temperature resistant sealing cap 2 is fixedly connected with the inwall of seal 6, the outer wall of low temperature resistant sealing cap 2 and the inwall of seal 6 are fitted tightly, and the upper end of low temperature resistant sealing cap 2 covers on the upper surface of tubing hanger body 1 tube wall, tubing hanger body 1 is sealed, and cushion the impact of the axial force that tubing hanger body 1 is subject to.Because of the combined type sandwich of low temperature resistant sealing cap 2 and low temperature resistant protection body 4, reduce low temperature from the cryogen of latus rectum along the speed of axially conduction of the present utility model.The outer wall of seal 6 is provided with sealed groove, and O-ring seals is arranged in described sealed groove, for sealing the annular space between the utility model and production string.And tubing hanger body 1 of the present utility model, low temperature resistant protection body 4, seal 6 and low temperature resistant sealing cap 2 all adopt the material with resistance to low temperature to make, therefore the utility model can meet to work at low ambient temperatures the requirement of Transition of Brittleness can not occur.
The low temperature resistant boll-weevil hanger that the utility model embodiment provides, three layer construction is formed by tubing hanger body 1, low temperature resistant protection body 4, seal 6 and low temperature resistant sealing cap 2, and they all adopt low temperature resistant material to make, low temperature resistant boll-weevil hanger described in the utility model is worked at low ambient temperatures and does not occur that black brittleness changes, solve low-temperature working liquid causes low temperature injury technical barrier to boll-weevil hanger, meet the production requirement of coal bed gas well coal seam reservoirs phase transformation renovation technique.
In addition, the utility model also have high pressure resistant, compact conformation, easy to use, be easy to the advantages such as operation.
As shown in Figure 2, described tubing hanger body 1 outer wall is provided with outer lug boss 12.Outer lug boss 12 is near the bottom of tubing hanger body 1, the lower surface of outer lug boss 12 is the main load-carrying surface A of the present embodiment, and the width of outer lug boss 12 upper surface is greater than the width of its lower surface, avoid tubing hanger body 1 external stress to concentrate, outer lug boss 12 is cut off in practical work process.
As shown in Figure 3, also can see Fig. 1, described low temperature resistant protection body 4 outer wall is provided with two stage steps, and described low temperature resistant protection body 4 is enclosed within above described outer lug boss 12, and described low temperature resistant protection body 4 is spacing by described outer lug boss 12.In the present embodiment, the first order step 41 of low temperature resistant protection body 4 is positioned at the middle part of low temperature resistant protection body 4 outer wall, second level step 42 is positioned at the bottom of low temperature resistant protection body 4 outer wall, low temperature resistant protection body 4 is enclosed within the top of tubing hanger body 1 outer lug boss 12, spacing by outer lug boss 12, avoid, when tubing hanger body 1 is subject to axial active force, between low temperature resistant protection body 4 and tubing hanger body 1, having relative motion trend.Certainly, those skilled in the art know, according to the Production requirement of reality, the number of steps of the outer wall of low temperature resistant protection body 4 also can be designed to 1 grade, 3 grades or multistage.
As shown in Figure 5, also see Fig. 1 and Fig. 3, described seal 6 inwall and outer wall are equipped with one-level step, and described seal 6 is spacing by described two stage steps.The outer wall of seal 6 and the middle part of inwall are equipped with one-level step, the step of described seal 6 inwall hangs on the first order step 41 of described low temperature resistant protection body 4, the lower surface of described seal 6 is arranged on the second level step 42 of low temperature resistant protection body 4, the upper surface of the lower surface of seal 6 and low temperature resistant protection body 4 second level step 42 is fitted tightly, namely described seal 6 is spacing by the two stage steps of described low temperature resistant protection body 4, in use seal 6 is avoided to be subject to the effect of axial force and to be separated with tubing hanger body 1 with low temperature resistant protection body 4, lose the effect of the annular space between sealing the utility model and production string, thus lose basic function of the present utility model.Certainly, those of ordinary skill in the art are known, and the number of steps of seal 6 outer wall also can correspondingly be set to 0 grade, 2 grades, 3 grades or multistage according to the number of steps of low temperature resistant protection body 4 outer wall.
As shown in Figure 5, described seal 6 outer wall is divided into upper region and lower area by described seal 6 outer wall one-level step, described seal groove comprises first group of seal groove 61 and second group of seal groove 62, described first group of seal groove 61 is arranged in described upper region, described second group of seal groove 62 is arranged in described lower area, described O-ring seals comprises first group of 0 RunddichtringO 3 and second group of O-ring seals 5, described first group of 0 RunddichtringO 3 is arranged in described first group of seal groove 61, described second group of O-ring seals 5 is arranged in described second group of seal groove 62, the cross sectional dimensions of described first group of 0 RunddichtringO 3 and described second group of O-ring seals 5 is identical.By installing O-ring seals, the annular space between the utility model and production string is sealed.Selectively, in the present embodiment, first group of seal groove, 61, second group of seal groove 62 all can be designed to multiple, first group of 0 RunddichtringO, 3, second group of O-ring seals 5 designs multiple with first group of seal groove, 61, second group of seal groove 62 respectively accordingly, and in the present embodiment, the quantity often organizing seal groove is preferably 3, the quantity often organizing O-ring seals is also preferably three, design like this, can reach good sealing effectiveness, and makes compact conformation, distribution rationally.Certainly, those skilled in the art are known, and according to the demand of the sealing effectiveness of reality and the needs of structure, the quantity often organizing seal groove also can be designed to 1,2,4 or multiple, and accordingly, the quantity of O-ring seals is also designed to 1,2,4 or multiple.Because of the one-level step that seal 6 outer wall is arranged, cause the size at the upper and lower two ends of seal 6 outer wall different, therefore the diameter of O-ring seals is different, for ease of processing, select the O-ring seals that cross sectional dimensions is identical, in the present embodiment, equal preferred cross-sectional dimension is the O-ring seals of φ 7mm, selectively, in the present embodiment, the size of seal groove and O-ring seals also can design according to the needs of actual production.
As shown in Figure 4, described low temperature resistant sealing cap 2 inwall is provided with inner convex platform 21, and the height of described inner convex platform 21 is 1mm ~ 2mm.The lower surface of inner convex platform 21 hangs on the upper surface of tubing hanger body 1, seals tubing hanger body 1, and the impact that the axial force that buffering tubing hanger body 1 is subject to is formed tubing hanger body 1, in the present embodiment, the height of preferred inner convex platform 21 is 1.5mm.
See Fig. 1, selectively, in the present embodiment, described tubing hanger body 1 and described seal 6 all adopt low temperature resistant alloy steel to forge and form, the brittle transition temperature of material is lower than serviceability temperature of the present utility model, in the utility model use procedure, its organizational styucture is stablized, selectively, in the present embodiment, described tubing hanger body 1 and described seal 6 can adopt the alloy steel that with the addition of the alloying elements such as Mn and Ni, as low carbon manganese steel, the materials such as manganese nickel-molybdenum steel and nickel chromium molybdenum steel, in the present embodiment, preferred 09Mn2V forge oil pipe hanger body 1 and seal 6, selectively, in the present embodiment, described tubing hanger body 1 and described seal 6 also can adopt austenitic cryogenic steel (as 0Cr21Ni6Mn9N and 0Cr16Ni22Mn9Mo2 etc.) to make.
See Fig. 1, described low temperature resistant protection body 4 selects glass fiber reinforced plastic to make.In this enforcement, described low temperature resistant protection body 4 is selected epoxy resin to add a certain proportion of glass fiber and is made, the mass fraction of preferred glass fibers 30% ~ 35% glass fiber reinforced plastic, selectively, described low temperature resistant protection body 4 also can select other to have the material of lower temperature resistance, as foam glass, polyvinyl fluoride, polysulfones or Merlon etc.
See Fig. 1, described low temperature resistant sealing cap 2 selects silicon rubber to make.In the present embodiment; low-phenyl silicone rubber material is selected to make low temperature resistant sealing cap 2; because low-phenyl silicone rubber has excellent resistance to low temperature; it does not still lose elasticity after sulfuration-90 DEG C time; therefore adopt low-phenyl silicone rubber material can realize the purpose of this utility model preferably, in addition, because of low-phenyl silicone rubber made of soft; Absorbable rod, from the impact force of the utility model axis, can form good protection to low temperature resistant protection body 4 of the present utility model and tubing hanger body 1.In the present embodiment, the material of described low temperature resistant sealing cap 2 is preferably polybutadiene rubber, polybutadiene rubber has good lower temperature resistance, elasticity is high, thermogenesis performance is low, and its vitrification point is-105 DEG C, can meet the requirement of working environment of the present utility model.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a low temperature resistant boll-weevil hanger, it is characterized in that, described low temperature resistant boll-weevil hanger comprises tubing hanger body, low temperature resistant protection body, seal, O-ring seals and low temperature resistant sealing cap, described tubing hanger inner body wall upper end and lower end are respectively equipped with internal thread, described low temperature resistant protection body is enclosed within described tubing hanger body exterior, described low temperature resistant protection body is fixedly connected with described tubing hanger body, it is outside that described seal is enclosed within described low temperature resistant protection body, described seal outer wall is provided with seal groove, described O-ring seals is arranged in described seal groove, annular space is formed between described seal and described tubing hanger body, described low temperature resistant sealing cap is arranged in described annular space, described seal is fixedly connected with described low temperature resistant protection body and described low temperature resistant sealing cap, and described tubing hanger body, described low temperature resistant protection body, described seal and described low temperature resistant sealing cap all adopt low temperature material to make.
2. low temperature resistant boll-weevil hanger according to claim 1, is characterized in that, described tubing hanger body outer wall is provided with outer lug boss.
3. low temperature resistant boll-weevil hanger according to claim 2, is characterized in that, described low temperature resistant protection body outer wall is provided with two stage steps, and described low temperature resistant protection body is enclosed within above described outer lug boss, and described low temperature resistant protection body is spacing by described outer lug boss.
4. low temperature resistant boll-weevil hanger according to claim 3, is characterized in that, described seal inwall and outer wall are equipped with one-level step, and described seal is spacing by described two stage steps.
5. low temperature resistant boll-weevil hanger according to claim 4, it is characterized in that, described seal outer wall is divided into upper region and lower area by described seal outer wall one-level step, described seal groove comprises first group of seal groove and second group of seal groove, described first group of seal groove is arranged in described upper region, described second group of seal groove is arranged in described lower area, described O-ring seals comprises first group of O-ring seals and second group of O-ring seals, described first group of O-ring seals is arranged in described first group of seal groove, described second group of O-ring seals is arranged in described second group of seal groove, the cross sectional dimensions of described first group of O-ring seals and described second group of O-ring seals is identical.
6. low temperature resistant boll-weevil hanger according to claim 4, is characterized in that, described low temperature resistant sealing cap inwall is provided with inner convex platform, and described inner convex platform height is 1mm ~ 2mm.
7. low temperature resistant boll-weevil hanger according to claim 1, is characterized in that, described tubing hanger body and described seal all adopt low temperature resistant alloy steel to forge and form.
8. low temperature resistant boll-weevil hanger according to claim 1, is characterized in that, described low temperature resistant protection body selects glass fiber reinforced plastic to make.
9. the low temperature resistant boll-weevil hanger according to any one of claim 1-8 claim, is characterized in that, described low temperature resistant sealing cap selects silicon rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551851.0U CN204113188U (en) | 2014-09-24 | 2014-09-24 | Low-temperature-resistant oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551851.0U CN204113188U (en) | 2014-09-24 | 2014-09-24 | Low-temperature-resistant oil pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113188U true CN204113188U (en) | 2015-01-21 |
Family
ID=52330512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551851.0U Withdrawn - After Issue CN204113188U (en) | 2014-09-24 | 2014-09-24 | Low-temperature-resistant oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443066A (en) * | 2014-09-24 | 2016-03-30 | 中国石油天然气股份有限公司 | Low-temperature-resistant oil pipe hanger |
| CN110762211A (en) * | 2019-11-22 | 2020-02-07 | 李国栋 | Oil well is with thermal-insulated heat preservation abrasionproof oil pipe pin end sealing device |
-
2014
- 2014-09-24 CN CN201420551851.0U patent/CN204113188U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443066A (en) * | 2014-09-24 | 2016-03-30 | 中国石油天然气股份有限公司 | Low-temperature-resistant oil pipe hanger |
| CN105443066B (en) * | 2014-09-24 | 2018-02-02 | 中国石油天然气股份有限公司 | Low-temperature-resistant oil pipe hanger |
| CN110762211A (en) * | 2019-11-22 | 2020-02-07 | 李国栋 | Oil well is with thermal-insulated heat preservation abrasionproof oil pipe pin end sealing device |
| CN110762211B (en) * | 2019-11-22 | 2024-06-11 | 李国栋 | Heat-insulating wear-proof oil pipe pin end sealing device for oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20180202 |