CN203835321U - Combined-type double-oil-tube wellhead connection device - Google Patents
Combined-type double-oil-tube wellhead connection device Download PDFInfo
- Publication number
- CN203835321U CN203835321U CN201420253694.5U CN201420253694U CN203835321U CN 203835321 U CN203835321 U CN 203835321U CN 201420253694 U CN201420253694 U CN 201420253694U CN 203835321 U CN203835321 U CN 203835321U
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- CN
- China
- Prior art keywords
- hanger
- oil
- combined
- head body
- well head
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- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 241000254175 Anthonomus grandis Species 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 10
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a combined-type double-oil-tube wellhead connection device. A surface casing (3) is connected with a combined-type wellhead body (12), a trough-type hanger (5) is located on the combined-type wellhead body (12), a trough-type hanger sealing sleeve (6) seals the combined-type wellhead body (12) and the trough-type hanger (5), and a first elastic fixing ring (7) fixes the trough-type hanger sealing sleeve (6) and the combined-type wellhead body (12). An intermediate casing (4) is connected to the trough-type hanger (5), a double-oil-tube hanger (8) is located on the combined-type wellhead body (12), a second elastic fixing ring (9) fixes the double-oil-tube hanger (8) and the combined-type wellhead body (12), and a first oil tube (1) and a second oil tube (2) are installed on the double-oil-tube hanger (8). Integration design is adopted for the combined-type double-oil-tube wellhead connection device, so that the number of wellhead oil-leaking points is reduced, wellhead safety is enhanced, the parallel oil tubes are installed in the same production casing so as to form two independent oil production channels, production cost is reduced, and working efficiency is improved.
Description
Technical field
The utility model relates to oil and gas wellhead linkage, is specifically related to a kind of combined type Double-oil tube well mouth linkage.
Background technology
At present, known most popular wellhead connection device is split-type structural, casing head, tubing head two parts, consists of, and between the two, with gasket ring sealing, by bolt, nut, couples together.Will be according to drilling technology program and operating mode needs in drilling well journey, must change preventer and on watch out for spray apparatus and operate, work working strength is large, inefficiency, increased drilling cost, and conventional well head is single oil pipe wellhead connection device, they are only applicable to single reservoir exploitation and control, control method tradition, operating efficiency is relatively low.
Summary of the invention
The purpose of this utility model is: a kind of combined type Double-oil tube well mouth linkage is provided, casing head body and tubing head body are designed to integral body, from drilling well to completion, in whole process, only need a kind of preventer of specification flange to be connected with it, in drilling process, only need to install a preventer; And middle part is without linking together casing head and tubing head with bolt, nut, gasket ring, without lock-screw fastening devices, has reduced the leakage point of well head in whole well head, strengthen the safety type of well head; And realize two parallel oil pipes are installed in same production casing, two oil pipes form two passages that independently recover the oil by this Double-oil tube well mouth linkage, under the condition without two wells of brill, complete two oil-gas Layer exploits on same equipment, yield is the twice of same equal aperture list oil pipe, reduce production costs, increase work efficiency.
The scheme of the utility model technical solution problem is: this wellhead connection device comprises oil pipe No. one, No. two oil pipes, surface pipe, protective casing, fluted hanger, fluted hanger sealing shroud, a flexible fastening circle, double tube hanger, No. two flexible fastening circles, emergent slips hanger, emergent slips hanger sealing shroud and Combined well head body, surface pipe is connected with Combined well head body by screw thread, fluted hanger is seated in the step A place of Combined well head body, the annular space that fluted hanger sealing shroud sealed composite formula wellhead body and fluted hanger form, utilize a flexible fastening circle that fluted hanger sealing shroud and Combined well head body are fixed together, protective casing connects on fluted hanger by screw thread pair, emergent slips hanger is arranged on Combined well head body, Suspension Technique sleeve pipe on emergent slips hanger, the annular space that emergent slips hanger sealing shroud Sealing Technology sleeve pipe and Combined well head body form, utilize will meet an urgent need slips hanger sealing shroud and Combined well head body of spring retainer plate to be fixed together, double tube hanger is located in the step B place of Combined well head body, utilize No. two flexible fastening circles that double tube hanger and Combined well head body are fixed together, and between double tube hanger and Combined well head body, form sealing, an oil pipe, No. two oil pipe is arranged on double tube hanger, whole formation combined type Double-oil tube well mouth linkage.
Wherein, described double tube hanger is comprised of two parts of full symmetric, and every part has independently boll-weevil hanger body and sealing ring.
The utlity model has following advantage:
1, casing head body and tubing head body are designed to integral body, from drilling well to completion, whole process kind only needs a kind of preventer of specification flange to be connected with it, only needs to install a preventer in drilling process;
2, combined type Double-oil tube well mouth linkage, without with bolt, nut, gasket ring, casing head and tubing head being linked together, has reduced well head leakage point, has strengthened the safety type of well head;
3, double tube hanger is arranged in Combined well head body, described double tube hanger hangs two oil pipe suspension bodies and forms in integral sealing overlaps, every part has independently boll-weevil hanger body and sealing ring, is applicable to double-oil-layer exploitation and controls, and operating efficiency is high;
4, owing to being difficult to the low situation of prediction well in cased process, consider that protective casing likely can not be lowered into projected depth in the process of G.I.H, now fluted hanger can not be located the step place of Combined well head body, the utility model has designed emergent sealing shroud and emergent slips hanger, with emergent slips hanger hang and on carry the step place that protective casing is located Combined well head body, then slice off as required redundance;
5, design spring retainer plate, with spring retainer plate, sealing shroud, boll-weevil hanger and Combined well head body have been fixed together, changed the fixing structure of a plurality of lock screw for conventional method, reduced leakage link, swift to operate, convenient.
6, casing head body and tubing head body are designed to integral body, easy and simple to handle, alleviate drilling well labour intensity, reduce drilling cost, improve drilling efficiency;
7, well head is without external locking device, and Double-oil tube well mouth linkage modularization is installed, outside connection less, and compact conformation, leakage link is few, and demolition and maintenance are convenient;
Exploitation when 8, this wellhead connection device is realized two oil-gas Layer, without boring two wells, yield is the twice of same equal aperture single tube well, has improved production efficiency;
9,, according to the data of two oil reservoirs, to two oil-gas Layer, can implement different oil production technology and underground work.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: No. 1 oil pipes, 2 No. two oil pipes, 3 surface pipes, 4 protective casings, 5 fluted hanger 6 fluted hanger sealing shrouds, 7 flexible fastening circle A, 8 double tube hangers, 9 flexible fastening circle B, 10 emergent slips hangers, 11 emergent slips hanger sealing shrouds, 12 Combined well head bodies.
The specific embodiment
As shown in Figure 1, this wellhead connection device comprises oil pipe 1 No. one, No. two oil pipes 2, surface pipe 3, protective casing 4, fluted hanger 5, fluted hanger sealing shroud 6, a flexible fastening circle 7, double tube hanger 8, No. two flexible fastening circles 9, emergent slips hanger 10, emergent slips hanger sealing shroud 11 and Combined well head body 12, surface pipe 3 is connected with Combined well head body 12 by screw thread, fluted hanger 5 is seated in the step A place of Combined well head body 12, the annular space that fluted hanger sealing shroud 6 sealed composite formula wellhead body 12 and fluted hanger 5 form, utilize a flexible fastening circle 7 that fluted hanger sealing shroud 6 and Combined well head body 12 are fixed together, protective casing 3 connects on fluted hanger 5 by screw thread pair, emergent slips hanger 10 is arranged on Combined well head body 12, Suspension Technique sleeve pipe 3 on emergent slips hanger 10, the annular space that emergent slips hanger sealing shroud 11 Sealing Technology sleeve pipes 3 and Combined well head body 12 form, utilize spring retainer plate 7 slips hanger sealing shroud 11 of meeting an urgent need to be fixed together with Combined well head body 12, double tube hanger 8 is located in the step B place of Combined well head body 12, utilize No. two flexible fastening circles 9 that double tube hanger 8 and Combined well head body 12 are fixed together, and between double tube hanger 8 and Combined well head body 12, form sealing, an oil pipe 1, No. two oil pipe 2 is arranged on double tube hanger 8, whole formation combined type Double-oil tube well mouth linkage.
Wherein, described double tube hanger 8 is comprised of two parts of full symmetric, and every part has independently boll-weevil hanger body and sealing ring.
Claims (2)
1. combined type Double-oil tube well mouth linkage, it is characterized in that: this wellhead connection device comprises an oil pipe (1), No. two oil pipes (2), surface pipe (3), protective casing (4), fluted hanger (5), fluted hanger sealing shroud (6), a flexible fastening circle (7), double tube hanger (8), No. two flexible fastening circles (9), emergent slips hanger (10), emergent slips hanger sealing shroud (11) and Combined well head body (12), surface pipe (3) is connected with Combined well head body (12) by screw thread, fluted hanger (5) is seated in the step A place of Combined well head body (12), the annular space that fluted hanger sealing shroud (6) sealed composite formula wellhead body (12) and fluted hanger (5) form, utilize a flexible fastening circle (7) that fluted hanger sealing shroud (6) and Combined well head body (12) are fixed together, protective casing (3) connects on fluted hanger (5) by screw thread pair, emergent slips hanger (10) is arranged on Combined well head body (12), the upper Suspension Technique sleeve pipe (3) of emergent slips hanger (10), the annular space that emergent slips hanger sealing shroud (11) Sealing Technology sleeve pipe (3) and Combined well head body (12) form, utilize will meet an urgent need slips hanger sealing shroud (11) and Combined well head body (12) of a spring retainer plate (7) to be fixed together, double tube hanger (8) is located in the step B place of Combined well head body (12), utilize No. two flexible fastening circles (9) that double tube hanger (8) and Combined well head body (12) are fixed together, and between double tube hanger (8) and Combined well head body (12), form sealing, an oil pipe (1), No. two oil pipes (2) are arranged on double tube hanger (8), whole formation combined type Double-oil tube well mouth linkage.
2. combined type Double-oil tube well mouth linkage according to claim 1, is characterized in that: described double tube hanger (8) is comprised of two parts of full symmetric, and every part has independently boll-weevil hanger body and sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253694.5U CN203835321U (en) | 2014-05-19 | 2014-05-19 | Combined-type double-oil-tube wellhead connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420253694.5U CN203835321U (en) | 2014-05-19 | 2014-05-19 | Combined-type double-oil-tube wellhead connection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835321U true CN203835321U (en) | 2014-09-17 |
Family
ID=51513178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420253694.5U Expired - Lifetime CN203835321U (en) | 2014-05-19 | 2014-05-19 | Combined-type double-oil-tube wellhead connection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835321U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156053A (en) * | 2015-07-30 | 2015-12-16 | 江苏金石科技有限公司 | Double-pipe oil pipe hanger with sealing sleeve structure |
| CN106761574A (en) * | 2016-12-08 | 2017-05-31 | 重庆大学 | Multiple superposed gas system peupendicular hole exploitation pipe |
| CN107503704A (en) * | 2017-10-13 | 2017-12-22 | 苏州优力克流体控制科技有限公司 | A kind of integrated oil casing head body |
| CN110656908A (en) * | 2019-10-08 | 2020-01-07 | 中国石油集团渤海石油装备制造有限公司 | All-metal sealed double-pipe steam injection wellhead device for inclined shaft |
| CN112647885A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well mouth |
| CN115929246A (en) * | 2023-03-13 | 2023-04-07 | 威飞海洋装备制造有限公司 | Integral double-barrelled well head and production tree device |
-
2014
- 2014-05-19 CN CN201420253694.5U patent/CN203835321U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156053A (en) * | 2015-07-30 | 2015-12-16 | 江苏金石科技有限公司 | Double-pipe oil pipe hanger with sealing sleeve structure |
| CN106761574A (en) * | 2016-12-08 | 2017-05-31 | 重庆大学 | Multiple superposed gas system peupendicular hole exploitation pipe |
| CN107503704A (en) * | 2017-10-13 | 2017-12-22 | 苏州优力克流体控制科技有限公司 | A kind of integrated oil casing head body |
| CN110656908A (en) * | 2019-10-08 | 2020-01-07 | 中国石油集团渤海石油装备制造有限公司 | All-metal sealed double-pipe steam injection wellhead device for inclined shaft |
| CN112647885A (en) * | 2020-12-31 | 2021-04-13 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well mouth |
| CN112647885B (en) * | 2020-12-31 | 2022-07-15 | 江苏信得石油机械股份有限公司 | Casing head for preventing leakage of oil field well head |
| CN115929246A (en) * | 2023-03-13 | 2023-04-07 | 威飞海洋装备制造有限公司 | Integral double-barrelled well head and production tree device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161219 Address after: No. 98 Huaian 211600 stone city of Jiangsu province Jinhu County Road Patentee after: JIANGSU JINSHI MACHINERY GROUP Co.,Ltd. Patentee after: JIANGSU JINSHI TECHNOLOGY CO.,LTD. Address before: 211600 Jinhu, Huaian province with the Thai Road, science and technology building, No. 408 Patentee before: JIANGSU JINSHI TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |