CN112377141A - Spare locking device for oil pipe hanger of underwater Christmas tree - Google Patents
Spare locking device for oil pipe hanger of underwater Christmas tree Download PDFInfo
- Publication number
- CN112377141A CN112377141A CN202011424716.6A CN202011424716A CN112377141A CN 112377141 A CN112377141 A CN 112377141A CN 202011424716 A CN202011424716 A CN 202011424716A CN 112377141 A CN112377141 A CN 112377141A
- Authority
- CN
- China
- Prior art keywords
- hanger
- locking device
- hanger body
- subsea tree
- open slot
- 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.)
- Granted
Links
- 241000191291 Abies alba Species 0.000 title claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000009826 distribution Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/043—Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Supports For Pipes And Cables (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a standby locking device for an oil pipe hanger of an underwater Christmas tree, which comprises a hanger body, wherein the top of the hanger body extends outwards in a mirror image manner to form an extending part, the outer edge of the bottom end of the extending part is provided with a clamping plate, the top surface of the extending part is provided with an open slot in a penetrating way, and the side surface of the clamping plate is provided with an insertion hole in a penetrating way; the hanger comprises a hanger body and is characterized by further comprising a locking assembly, wherein the locking assembly penetrates through the inner sides of the open slot and the jack to lock and fix the hanger body. This spare locking device of subsea tree tubing hanger uses through the cooperation of extension, cardboard, open slot, jack and locking Assembly, and when the hanger body used, usable extension, cardboard, open slot and the jack that sets up of its self are cooperateed with locking Assembly to reach and lock the hanger body on the christmas tree body, prevent that the hanger body from being washed out by pressure in the pit.
Description
Technical Field
The invention belongs to the field of petroleum oil pipes, and particularly relates to a standby locking device for an oil pipe hanger of an underwater Christmas tree.
Background
The oil pipe hanger is a device for supporting an oil pipe column and sealing an annular space between the oil pipe and a casing, and the sealing mode of the oil pipe hanger is that the oil pipe hanger is connected with the oil pipe and is seated in a large four-way cone body of the oil pipe hanger by using the gravity of the oil pipe to be sealed, so that the operation is convenient, the wellhead changing speed is high, and the safety is high, so that the oil pipe hanger is a mode commonly used by medium-deep wells and conventional wells.
However, the conventional tubing hanger gradually presents some disadvantages in the using process, and the occurrence of the disadvantages causes that the conventional tubing hanger can not meet the high standard using requirements in the field at present, and the disadvantages of the conventional tubing hanger are specifically described as follows:
traditional tubing hanger is in the use, because its stability can be relatively poor, lacks locking function, often leads to tubing hanger to be washed out by pressure in the pit, then directly causes the loss of financial resources, material resources from this, leads to oil gas to flow into the environment from the oil well, will cause the destruction to the surrounding environment also.
It can thus be seen that there is a significant need in the art to devise a tubing hanger backup lock that addresses the above-identified problems.
Disclosure of Invention
In view of the above, the present invention provides a locking device for an oil hanger of an underwater Christmas tree, so as to solve the problem that an oil hanger in the prior art lacks a locking function.
The invention is realized by the following technical scheme:
the spare locking device for the oil pipe hanger of the underwater Christmas tree comprises a hanger body, wherein the top of the hanger body extends outwards in a mirror image manner to form an extending part, the outer edge of the bottom end of the extending part is provided with a clamping plate, the top surface of the extending part is provided with an open slot in a penetrating manner, and the side surface of the clamping plate is provided with a jack in a penetrating manner;
the hanger comprises a hanger body and is characterized by further comprising a locking assembly, wherein the locking assembly penetrates through the inner sides of the open slot and the jack to lock and fix the hanger body.
The invention has the beneficial effects that:
1. this spare locking device of subsea tree tubing hanger uses through the cooperation of extension, cardboard, open slot, jack and locking Assembly, and when the hanger body used, usable extension, cardboard, open slot and the jack that sets up of its self are cooperateed with locking Assembly to reach and lock the hanger body on the christmas tree body, prevent that the hanger body from being washed out by pressure in the pit.
2. This locking device for oil production tree tubing hanger under water uses through the cooperation of cyclic annular clamp, sawtooth and sawtooth portion card strip, when cyclic annular clamp forms the centre gripping to the hanger body outside, sawtooth and sawtooth portion card strip lock each other, because its special model structure, cyclic annular clamp is under the effect of sawtooth and sawtooth portion card strip, and its unable upward movement is the lock form to reach the stability to the hanger body locking in-process.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
Fig. 1 is a schematic perspective view I of the present invention.
Fig. 2 is a schematic perspective view II of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a partial perspective view of the saw-tooth clamping strip of the present invention.
Fig. 5 is a cross-sectional view I of the present invention.
Fig. 6 is a cross-sectional view II of the present invention.
FIG. 7 is a schematic view of the locking state of the locking bar of the saw tooth portion and the saw tooth of the present invention.
Fig. 8 is a front view of the present invention.
Fig. 9 is a schematic top view of the movable block in fig. 8 not fastened to the inner side of the insertion hole according to the present invention.
Fig. 10 is a schematic top view illustrating the movable block of fig. 8 being fastened to the inner side of the insertion hole according to the present invention.
FIG. 11 is a schematic view of the inner mandrel abutment ejector of the present invention.
FIG. 12 is a schematic view of the internal spindle and hanger body position relationship of the present invention.
In the figure: 1. a hanger body; 2. clamping a plate; 3. an extension portion; 4. a jack; 5. saw teeth; 6. a locking assembly; 601. an annular clip body; 602. a reverse hook body; 7. a saw-tooth clamping strip; 8. pushing the top block; 9. a spring pin; 10. a concave groove; 11. a movable block; 12. a connecting ring; 13. and a through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1 to 12, the standby locking device for an oil string of an underwater Christmas tree comprises a hanger body 1, an extension part 3 is arranged at the top of the hanger body in an outward mirror image extension manner, a clamping plate 2 is arranged on the outer edge of the bottom end of the extension part, an open slot is formed in the top surface of the extension part in a penetrating manner, and a jack 4 is formed in the side surface of the clamping plate in a penetrating manner;
the hanger body is the prior art in the field, and the installation and use modes of the hanger body are adopted, so that a person skilled in the art can complete the daily operation of the hanger body without creative labor and thinking, and repeated description is omitted in the application;
when the hanger body is used, the locking assembly penetrates through the jack and the open slot, the locking of the hanger body is completed, what needs to be described here is that, as shown in the attached drawing 8, the open slot is located in the top direction of the hanger body, the jack is located in the peripheral direction of the circumference of the hanger body, and a plurality of jacks are arranged at equal intervals, at the moment, the locking assembly extends to the jack, the hanger body can be clamped by the peripheral circumferential direction of the hanger body, when the locking assembly extends to the inner side of the open slot, the locking assembly can clamp the hanger body from top to bottom, the clamping force at two different angles is utilized, and the stability of the hanger body can be improved.
In this embodiment: the outer surface of the hanger body is provided with sawteeth 5, the locking assembly comprises an annular clamp body 601 sleeved on the outer side of the hanger body, the inner side of the annular clamp body is provided with a sawtooth part clamping strip 7 clamped with the sawteeth, and the figure 7 in the specification can be referred to, when the annular clamp body is locked on the outer part of the hanger body through the mutual clamping of the sawteeth and the sawtooth part clamping strip, the annular clamp body can be prevented from moving from bottom to top due to the special structure, so that the suspension body is prevented from moving randomly due to poor stability on the basis of ensuring the locking and fixing of the sawtooth part clamping strip on the hanger body, the upper section of the sawteeth is a plane, the lower section of the sawteeth is inclined, a plurality of sawteeth are distributed at intervals vertically, the edges of the sawtooth part clamping strips are convex, the cross section of the tops of the convex parts is horizontal, the lower parts of the sawtooth parts are inclined, and the convex parts can be inge, but cannot move upward relative to the serrations.
In this embodiment: sawtooth portion card strip is the circle and has the elastic construction of breach, further injecing here, sawtooth portion card strip is the circle elastic construction who has the breach, its purpose is when the cyclic annular clamp body is taken out to needs, can apply outside pulling force or thrust to sawtooth portion card strip, cyclic annular clamp body does not exert the clamp force to the hanger body this moment, then can take out it, what need explain here, can set up the embedded groove of the embedding of sawtooth portion card strip of being convenient for in cyclic annular clamp body inboard, sawtooth portion card strip when adaptability extends, it can be in the adaptive motion in the embedded groove.
In this embodiment: the activity of hanger body circumferencial direction is provided with the ejector pad 8 of exerting thrust to sawtooth portion card strip, this place is provided with the ejector pad, can refer to description attached drawing 2, the inside cooperation via inside dabber (ejector pin) and external pneumatic cylinder of hanger body down, can be the jacking motion inside the hanger body, when inside dabber and ejector pad contacted this moment, can exert outside thrust to it, the ejector pad can be borrowed the power and exert thrust to sawtooth portion card strip this moment, sawtooth portion card strip is the adaptability expansion form this moment, sawtooth portion card strip then loses the locking force to the hanger body this moment, alright dismantle it.
In this embodiment: the locking assembly further comprises an inverted hook body 602 which is arranged at the top of the annular clamp body and penetrates through the open slot, when the sawtooth part clamping strip is stretched in an adaptive mode, upward pulling force can be applied to the annular clamp body through the inverted hook body, the annular clamp body is detached, the inverted hook body can be connected with a cylinder and a hydraulic cylinder, the hook is in contact with the inverted hook body, and therefore upward pulling force of the inverted hook body on the annular clamp body is achieved.
In this embodiment: the spring pin 9 is arranged between the inverted hook body and the hanger body, and the spring pin is arranged at the position, so that when the device is not needed to be used, the inverted hook body and the annular clamp body are positioned at the position close to the top of the hanger body, when the device is needed to be used, only the inverted hook body and the annular clamp body need to be downwards applied with pressure, at the moment, the spring pin (used for one time, and when the device is used in a subsequent cycle, only the spring pin needs to be inserted again) is broken, the annular clamp body continues to move downwards until the clamping strip at the sawtooth part is clamped with the inverted hook body, and the description is needed here, referring to the attached figure 7 of the specification, the annular clamp body only can move downwards and can not move reversely, and therefore the problem that the annular clamp body is randomly displaced is solved.
In this embodiment: the inverted hook body is provided with a concave groove 10, the concave groove is movably provided with a movable block 11 which is clamped with the jack, when the inverted hook body moves downwards, the movable block can be clamped to the inner side of the jack in a smooth manner, so that the purpose of applying pressure to the periphery of the circumference of the hanger body is achieved, when the inverted hook body is pulled upwards, the inverted hook body can rotate reversely and is accommodated in the inner side of the concave groove, and the attached drawing 6 of the specification can be referred to.
In this embodiment: the inverted hook body is provided with threely at least, and equidistance interval distribution, and the inverted hook body surface is provided with the screw thread, and the outside threaded connection of inverted hook body has the clamping ring 12, and here can overlap the clamping ring in inverted hook body top earlier, and slow downwardly rotating again to reach and be fixed in the purpose at a plurality of inverted hook body tops with the clamping ring, then can avoid the inverted hook body of single state to rock at will this moment.
In this embodiment: the hanger body is provided with a through hole 13, and the through hole is connected with an external feeding mechanism through inserting a spring pin into the through hole.
In this embodiment: the through-hole is provided with two at least, and horizontal equidistance distributes or perpendicular interval distribution, and the through-hole is provided with a plurality ofly, and the difference sets up the position, and its purpose is sent into the mechanism and is taken the hanger body to remove when, and the condition that rocks, drop at will appears in the hanger body.
The above is only a preferred embodiment of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.
Claims (10)
1. Locking device for tubing hanger of underwater Christmas tree, comprising a hanger body, and is characterized in that: the hanger comprises a hanger body and is characterized in that the top of the hanger body extends outwards in a mirror image manner to form an extension part, a clamping plate is arranged on the outer edge of the bottom end of the extension part, an open slot is formed in the top surface of the extension part in a penetrating mode, and a jack is formed in the side surface of the clamping plate in a penetrating mode;
the hanger comprises a hanger body and is characterized by further comprising a locking assembly, wherein the locking assembly penetrates through the inner sides of the open slot and the jack to lock and fix the hanger body.
2. The locking device for subsea tree tubing hanger of claim 1, wherein: the outer surface of the hanger body is provided with sawteeth, the locking assembly comprises an annular clamp body sleeved on the outer side of the hanger body, and a sawtooth part clamping strip clamped with the sawteeth is arranged on the inner side of the annular clamp body.
3. The locking device for subsea tree tubing hanger of claim 2, wherein: the sawtooth part clamping strip is of an annular disconnected elastic structure.
4. The locking device for subsea tree tubing hanger of claim 3, wherein: and the hanger body is movably provided with a pushing block for applying thrust to the clamping strip of the sawtooth part in the circumferential direction.
5. The locking device for a tubing hanger of a subsea tree according to any of claims 1-4, characterized in that: the locking assembly further comprises an inverted hook body which is arranged at the top of the annular clamp body and penetrates through the open slot.
6. The locking device for subsea tree tubing hanger of claim 5, wherein: and a spring pin is arranged between the inverted hook body and the hanger body.
7. The locking device for subsea tree tubing hanger of claim 5, wherein: the reverse hook body is provided with a concave groove, and the concave groove is movably provided with a movable block clamped with the jack.
8. The locking device for subsea tree tubing hanger according to claim 6 or 7, characterized in that: the barb body is provided with three at least, and equidistance interval distribution, the external surface of barb is provided with the screw thread, the outside threaded connection of barb body has the clamping ring.
9. The locking device for subsea tree tubing hanger of claim 1, wherein: the hanger body is provided with a through hole.
10. The locking device for subsea tree tubing hanger of claim 9, wherein: the through-hole is provided with two at least, and horizontal equidistance distribution or perpendicular interval distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424716.6A CN112377141B (en) | 2020-12-08 | 2020-12-08 | Spare locking device for oil pipe hanger of underwater Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424716.6A CN112377141B (en) | 2020-12-08 | 2020-12-08 | Spare locking device for oil pipe hanger of underwater Christmas tree |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112377141A true CN112377141A (en) | 2021-02-19 |
| CN112377141B CN112377141B (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011424716.6A Active CN112377141B (en) | 2020-12-08 | 2020-12-08 | Spare locking device for oil pipe hanger of underwater Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112377141B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116556871A (en) * | 2023-06-26 | 2023-08-08 | 中国海洋石油集团有限公司 | Recovery tool of spare locking device for tubing hanger of underwater Christmas tree |
| CN116658114A (en) * | 2023-06-26 | 2023-08-29 | 中国海洋石油集团有限公司 | Subsea tree tubing hang spare locking device installation tool |
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| GB201205078D0 (en) * | 2011-03-24 | 2012-05-09 | Vetco Gray Inc | Casing hanger lockdown slip ring |
| CN202882818U (en) * | 2012-10-25 | 2013-04-17 | 中国石油化工股份有限公司 | Self-seal-examining screen pipe hanger |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116556871A (en) * | 2023-06-26 | 2023-08-08 | 中国海洋石油集团有限公司 | Recovery tool of spare locking device for tubing hanger of underwater Christmas tree |
| CN116658114A (en) * | 2023-06-26 | 2023-08-29 | 中国海洋石油集团有限公司 | Subsea tree tubing hang spare locking device installation tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112377141B (en) | 2022-11-11 |
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Inventor after: Liu Shujie Inventor after: Chen Jianghua Inventor after: Zhang Chong Inventor after: Yu Yi Inventor after: Dong Zhao Inventor after: Liu Yuhang Inventor after: Wang Hequan Inventor after: Qiu Quanping Inventor after: Wang Yang Inventor after: Huang Yi Inventor after: Huang Rongji Inventor after: Jiang Yongyi Inventor after: Wang Erjun Inventor after: Meng Wenbo Inventor after: Liu Hexing Inventor after: Guan Shen Inventor after: Luo Ming Inventor before: Huang Yi Inventor before: Zhang Chong Inventor before: Yu Yi Inventor before: Dong Zhao Inventor before: Liu Yuhang Inventor before: Wang Hequan Inventor before: Qiu Quanping Inventor before: Wang Yang Inventor before: Huang Rongji Inventor before: Jiang Yongyi Inventor before: Wang Erjun Inventor before: Meng Wenbo Inventor before: Liu Hexing Inventor before: Guan Shen Inventor before: Luo Ming Inventor before: Chen Jianghua |