CN202745772U - T-shaped oil pipe hanger - Google Patents
T-shaped oil pipe hanger Download PDFInfo
- Publication number
- CN202745772U CN202745772U CN 201220321037 CN201220321037U CN202745772U CN 202745772 U CN202745772 U CN 202745772U CN 201220321037 CN201220321037 CN 201220321037 CN 201220321037 U CN201220321037 U CN 201220321037U CN 202745772 U CN202745772 U CN 202745772U
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- Prior art keywords
- cylinder
- cone
- center line
- line
- boll
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- 241000254175 Anthonomus grandis Species 0.000 claims description 15
- 210000002445 nipple Anatomy 0.000 abstract description 7
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000016768 molybdenum Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
T type oil pipe hanger is applied to oil field well workover wellhead operation. Is characterized in that: the cylinder and the cone are integrated, the cylinder is arranged at the big circular end part of the cone, and the center line of the cylinder and the center line of the cone are on the same straight line; the diameter of the cylinder is 11-15 mm larger than that of the cone; the lower end surface of the cylinder forms a protruding annular shoulder; threaded holes are formed in the centers of the cylinder and the cone, and the central lines of the upper-end internal threads and the lower-end internal threads are the same straight line; four through holes are uniformly distributed on the outer walls of the cylinder and the cone, and the central lines of the through holes are vertical to the central line of the cylinder; and the centre line of the through hole is in the plane of the annular shoulder. The effect is as follows: can be hooked on the upper end surface of the casing pipe nipple after passing through a wellhead blowout preventer, a cross joint and a casing pipe flange, and the inner cavity is longitudinally communicated and transversely sealed.
Description
Technical field
The utility model relates to the oil-field well head device technical field, and particularly a kind of oilfield downhole operation rig tool is a kind of T-shaped boll-weevil hanger.
Background technology
Latter period of oilfield development, the control head corrosion, damage, the situation of function reduction even forfeiture is day by day serious, therefore change casing flange, four-way, the construction of the devices such as oil recovery (gas) tree body is more and more, changing control head with tubing string is the larger a kind of job practices of technical difficulty wherein, its main points at first are to solve switches new and old casing flange, must eliminate the hidden danger that overhead suspension swing pipe post causes unexpected whereabouts to hurt sb.'s feelings during four-way, next is how to improve old casing flange, the dismounting speed of four-way also will be able to be implemented the control to oil pipe inner chamber and oil jacket annular space.
Solution that Chinese ZL201020520368.8 " is sitting in the boll-weevil hanger on the casing nipple head " prevents from suspending in midair the problem of hurting sb.'s feelings and cause the accident in the unexpected whereabouts of oil pipe when well head is changed at the scene at present.But its cross through hole can not be implemented the control to oil pipe inner chamber and oil jacket annular space, and is sitting in the level height that highly substantially exceeds casing flange that exposes on the casing nipple head.
The utility model content
The purpose of this utility model is: a kind of T-shaped boll-weevil hanger is provided, can and be suspended on the upper surface of casing nipple by wellhead blowout preventor, four-way and casing flange, inner chamber vertically connects transverse seal; Improve the quality of changing control head with tubing string, guarantee speed of application.
The technical solution adopted in the utility model is: T-shaped boll-weevil hanger, comprise cylinder and cone, it is characterized in that: cylinder and cone are as a whole, and cylinder is in the large rounded ends of cone, and cylinder center line and cone center line are on same straight line; Cylinder diameter is greater than cone diameter 11～15mm; Cylindrical lower surface forms outstanding annular shoulder; There is screwed hole at the center of cylinder and cone, and the center line of upper end internal thread and lower end internal thread is the same straight line; Be evenly distributed with four through holes at cylinder and cone outer wall, the center line of through hole is vertical with the cylinder center line; And the center line of through hole is on the plane of annular shoulder.
Described cone upper end axis of great circle is between 115～119mm; Cone lower end axis of small circle is between 90～95mm; The height of cone is between 105～115mm.Cylindrical height is between 25～35mm.
Use for convenient, outer wall has chamfering 7 in cylindrical upper end.
Sketch the use procedure of T-shaped boll-weevil hanger, help to understand the utility model.Consult Fig. 1.Lower end internal thread 5 is by tubing string in the double male joint connecting well, upper end internal thread 4 connects the lifting sub pin thread, with the pipe string combination G.I.H, the top screw thread of flange internal thread enters cannula cavity at the bottom of the four-way of cone 2 by tubing head, the sleeve pipe, annular convex shoulder 3 is hooked on the casing nipple upper surface, has avoided overhead suspension swing pipe post.The lifting sub of dismantling is sitting in level height that exposing of annular convex shoulder 3 on the casing nipple head highly surpass casing flange less than 30mm, is used wellhead flange back-off device, improves the dismounting speed of old casing flange.If lower end internal thread 5 connects compression class packer, through hole 6 can be finished the UNICOM between oil jacket annular space and sleeve gate, implements the testing pressure of well head operation by sleeve gate control.If lower end internal thread 5 connects compression class packer, upper internal threaded connects plug valve, can realize the control of oil jacket annular space, oil pipe inner chamber, satisfies the requirement of the limited replace with pressure control head of tubing string.
The beneficial effects of the utility model: the T-shaped boll-weevil hanger of the utility model, can be by being hooked on the casing nipple upper surface behind wellhead blowout preventor, four-way, the casing flange, inner chamber vertically connects transverse seal, solved prevent when control head is changed with tubing string in present scene tubing string fall to hurting sb.'s feelings cause the accident, can not implement to oil pipe inner chamber and oil jacket annular space control, can not use the deficiency of wellhead flange back-off device class instrument.
Description of drawings
Fig. 1 is the T-shaped boll-weevil hanger structural profile of the utility model schematic diagram.
Fig. 2 is the structural profile schematic diagram of the T-shaped boll-weevil hanger of the utility model when cylindrical upper end outer wall has chamfering.
Among the figure, 1 cylinder, 2-cone, 3-shoulder, 4-upper end internal thread, 5-lower end internal thread, 6-through hole, 7-chamfering.
The specific embodiment
Embodiment 1: take the T-shaped boll-weevil hanger of an application diameter 139.7mm sleeve pipe as example, the utility model is described in further detail.
Consult Fig. 1.The T-shaped boll-weevil hanger of the utility model comprises cylinder 1 and cone 2.Cylinder 1 and cone 2 are as a whole, and cylinder 1 is in the large rounded ends of cone 2, and cylinder 1 center line and cone 2 center lines are on same straight line.The height of cylinder 1 is 30mm, and external diameter is 130mm.Cone 2 upper end axis of great circle 117mm, lower end axis of small circle 93mm, the height 110mm of cone 2.Cylinder 1 diameter is greater than cone 2 diameter 13mm.The lower surface of cylinder 1 forms outstanding annular shoulder 3; There is screwed hole at the center of cylinder 1 and cone 2, and the center line of upper end internal thread 4 and lower end internal thread 5 is the same straight line.Be evenly distributed with four through holes 6 at cylinder 1 and cone 2 outer walls, the diameter 8mm of through hole 6.The center line of through hole 6 is vertical with cylinder 1 center line; And the center line of through hole 6 is on the plane of annular shoulder 3.Consult Fig. 2.The chamfering 7 that one 10 * 45 degree is arranged at the upper end of cylinder 1 outer wall.The material that T-shaped boll-weevil hanger adopts is 40 chrome molybdenums.
Claims (3)
1. T-shaped boll-weevil hanger, comprise cylinder (1) and cone (2), it is characterized in that: cylinder (1) and cone (2) are as a whole, cylinder (1) is in the large rounded ends of cone (2), and cylinder (1) center line and cone (2) center line are on same straight line; Cylinder (1) diameter is greater than cone (2) diameter 11～15mm; The lower surface of cylinder (1) forms outstanding annular shoulder (3); There is screwed hole at the center of cylinder (1) and cone (2), and the center line of upper end internal thread (4) and lower end internal thread (5) is the same straight line; Be evenly distributed with four through holes (6) at cylinder (1) and cone (2) outer wall, the center line of through hole (6) is vertical with cylinder (1) center line; And the center line of through hole (6) is on the plane of annular shoulder (3).
2. T-shaped boll-weevil hanger according to claim 1 is characterized in that: described cone (2) upper end axis of great circle is between 115～119mm; Cone (2) lower end axis of small circle is between 90～95mm; The height of cone (2) is between 105～115mm; The height of cylinder (1) is between 25～35mm.
3. T-shaped boll-weevil hanger according to claim 1, it is characterized in that: the upper end outer wall at cylinder (1) has chamfering (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321037 CN202745772U (en) | 2012-07-04 | 2012-07-04 | T-shaped oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220321037 CN202745772U (en) | 2012-07-04 | 2012-07-04 | T-shaped oil pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745772U true CN202745772U (en) | 2013-02-20 |
Family
ID=47705189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220321037 Expired - Fee Related CN202745772U (en) | 2012-07-04 | 2012-07-04 | T-shaped oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678706A (en) * | 2018-07-26 | 2018-10-19 | 中国石油天然气股份有限公司 | Wellhead suspension device and operation method thereof |
-
2012
- 2012-07-04 CN CN 201220321037 patent/CN202745772U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678706A (en) * | 2018-07-26 | 2018-10-19 | 中国石油天然气股份有限公司 | Wellhead suspension device and operation method thereof |
| CN108678706B (en) * | 2018-07-26 | 2020-08-11 | 中国石油天然气股份有限公司 | Wellhead suspension device and operation method thereof |
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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 |
Granted publication date: 20130220 Termination date: 20210704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |