CN104989315A - Center hole sealing and locking apparatus for tubing hanger of underwater horizontal Christmas tree - Google Patents
Center hole sealing and locking apparatus for tubing hanger of underwater horizontal Christmas tree Download PDFInfo
- Publication number
- CN104989315A CN104989315A CN201510272406.XA CN201510272406A CN104989315A CN 104989315 A CN104989315 A CN 104989315A CN 201510272406 A CN201510272406 A CN 201510272406A CN 104989315 A CN104989315 A CN 104989315A
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- ring
- card tooth
- device body
- centre bore
- tubing hanger
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Abstract
The invention provides a center hole sealing and locking apparatus for a tubing hanger of an underwater horizontal Christmas tree. The apparatus comprises an apparatus body internally provided with an apparatus body inner ring. A motivating ring is arranged in the apparatus body inner ring, a limit ring is arranged at the top potion of the apparatus body, and the limit ring can prevent the motivating ring from getting out of the apparatus body inner ring. The middle upper portion of the apparatus body is circumferentially and uniformly provided with multiple rectangular through holes, and each rectangular through hole is provided with a clamping tooth. The outer ring of the motivating ring is in contact with the inner walls of the clamping teeth in a matching manner. The motivating ring drives the clamping teeth to expand outwardly when the motivating ring moves downwardly. The motivating ring matches the clamping teeth and performs self-locking when the motivating ring downwardly moves to the bottom. The sealing and locking apparatus is simple in structure. By employing the apparatus, the difficulty of underwater operation is reduced, the time and cost for the underwater operation are saved, the time for installation and delivery operation is shortened, a replacing process for sealing members is simplified, the sealing success rate by one time is improved, and better sealing effects are achieved.
Description
Technical field
The present invention relates to a kind of sealing-locking device, refer in particular to a kind of production tree tubing hanger centre bore sealing-locking device.
Background technology
Subsea production tree carries out in the process of oil development under water, and production tree tubing hanger is positioned at production tree body interior, and the tubing hanger centre bore that tubing hanger produces channel upper needs complete shutoff and sealing.
At present, the method locked the shutoff of tubing hanger centre bore and seal normally threaded fastens, and seals with nonmetal parts.Utilize above-mentioned conventional method, its sealing effectiveness cannot effectively be guaranteed, and once sealing success rate is lower.Screw-type rotates fixing means also can cause wearing and tearing to non-metallic seal in installation process, and its set-up time is longer, and this outside seal also by the corrosion of dielectric fluid, can affect application life.
Summary of the invention
For solving the problem, the invention provides a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device, easy for installation, shorten the time of installing and fetching and delivering operation greatly, and renewal part is easier, conserve space.
For achieving the above object, the present invention adopts following technical scheme:
A kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device, comprises device body 1, has device body inner ring 105 in described device body 1; In described device body inner ring 105 install actuate ring 30, described in actuate ring 30 upper and lower displacement in device body 1; Described device body 1 top is provided with spacing ring 20, spacing ring 20 subtend top offset actuate ring 30 position-limiting actions, prevent actuating ring 30 and deviate from from device body inner ring 105; Described device body 1 middle and upper part circumferentially evenly has several rectangular through-hole 102, in each rectangular through-hole 102, card tooth 40 is all installed, described card tooth 40 laterally can slide along rectangular through-hole 102, described card tooth 40 can not be deviate from by device body inner ring 105 is spacing from rectangular through-hole 102, the inwall of described outer ring and card tooth 40 of actuating ring 30 coordinates and contacts, describedly actuate push card tooth 40 when ring 30 moves downward and expand outwardly, described in actuate when ring 30 is moved to bottommost downwards and card tooth 40 close-fitting merges self-locking.
Preferably, described card tooth 40 inwall has the card tooth inwall inclined-plane 401 of inclination, described ring 30 bottom correspondence of actuating arranges the inclination angle of actuating inclined-plane, inclined-plane, ring outer ring 303, two and vertical direction that coordinates with described card tooth inwall inclined-plane 401 and is less than angle of friction between two contact surface materials.
Preferably, described ring 30 top of actuating has outer ring, the top profile 301 coordinated with spacing ring 20 centre bore, describedly actuate the shoulder 302 arranging in the middle part of ring 30 and close with device body inner ring 105 match profiles, described shoulder 302 external diameter is greater than the internal diameter of spacing ring centre bore 201, described spacing ring 20 is limited and actuates ring 30 prolapse upwards device.
Preferably, card tooth bottom protrusion 402 is set bottom described card tooth 40, device body inner ring 105 and the joint of described rectangular through-hole 102 arrange the body inner ring step 1051 matched with card tooth bottom protrusion 402, described main body inner ring step 1051 coordinate with card tooth bottom protrusion 402 make card tooth 40 actuated ring 30 promote under limited after outer displacement one segment distance.
Preferably, outside the middle and lower part of described device body 1, have seal groove 103, in described seal groove 103, seal assembly 50 is installed.
Preferably, described seal assembly 50 tubular structure ringwise, the material of two ends up and down of described seal assembly 50 is metal, for nonmetals are made in the middle part of described seal assembly 50.
Preferably, actuate ring 30 top described in and the inner ring groove 304 matched with installation and the taking-up instrument of device is set.
Preferably, described spacing ring 20 with between device body 1 by being threaded.
Preferably, install lower body 10 bottom described device body 1, by being threaded between described device body 1 with lower body 10, described lower body 10 arranges and seals with tubing hanger centre bore the lower body sealing surface 1002 matched on inclined-plane.
Preferably, the described lower body 10 bottom end face place of keeping to the side arranges annular groove 11.
Beneficial effect of the present invention is:
1, to coordinate locking release mechanism as device with card tooth by actuating ring, simplifying overall structure, reducing the difficulty of underwater operation, having saved underwater operation time and cost.
2, by actuating the design on self-locking inclined-plane between ring and card tooth, ensure that stability when device is locked, reducing the risk that it is threaded off.
3, the present invention to be separated with the lower body sealed by body and designs, and the mode be threaded connection, simplify the Renewal process of seal, reduce use cost.
4, the present invention is first contacted with tubing hanger center bore inner wall face by lower body sealing surface 1002, formation first seals, then secondary seal is formed, for whole device provides double shield in sealing performance by the seal assembly 50 with O type circle with tubing hanger center bore inner wall; This device once sealing is had higher success rate, and the sealing effectiveness of tubing hanger centre bore is better, and the sealing life of device is longer.
Accompanying drawing explanation
Fig. 1 is specific embodiment of the invention structural representation;
Number in the figure: under 1-device body 10-, body 105-device body inner ring 102-rectangular through-hole 103-seal groove 20-spacing ring 201-spacing ring centre bore 30-actuates outer ring, ring 301-top profile 302-shoulder 303-and actuates body sealing surface 50-seal assembly under 304-body inner ring groove 40-card tooth 401-card tooth inner ring inclined-plane, inclined-plane, ring outer ring 402-card tooth bottom protrusion 1051-body inner ring step 11-annular groove 1002-.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when describing the embodiment of the present invention in detail; for ease of explanation; the sectional drawing of indication device structure can be disobeyed general ratio and be made partial enlargement, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.In addition, the three-dimensional space of length, width and the degree of depth should be comprised in actual fabrication.
The specific embodiment of the invention provides a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device, as shown in Figure 1, comprises device body 1, has device body inner ring 105 in described device body 1; In described device body inner ring 105 install actuate ring 30, described in actuate ring 30 upper and lower displacement in device body 1; Described device body 1 top is provided with spacing ring 20, spacing ring 20 subtend top offset actuate ring 30 position-limiting actions, prevent actuating ring 30 and deviate from from device body inner ring 105; Described device body 1 middle and upper part circumferentially evenly has four rectangular through-hole 102, it should be noted that, the number of described rectangular through-hole 102 also can be three, five or other are multiple, no matter arrange how many, each rectangular through-hole 102 is all evenly arranged along device body 1 circumference, further, in each rectangular through-hole 102, card tooth 40 is all installed, described card tooth 40 can slide along rectangular through-hole 102 and be subject to device body inner ring 105 spacing, described in actuate ring 30 the inwall of outer ring and card tooth 40 coordinate and contact.
In the present embodiment, described in actuate ring 30 and move up and down card tooth 40 can be caused to regain or expand; Describedly actuate push card tooth 40 while ring 30 is from up to down moved to bottommost and expand outwardly, until card tooth 40 cannot continue expansion by device body inner ring 105 is spacing, now actuate ring 30 and form self-locking with card tooth 40 tight fit, described actuating on ring 30 is moved, the coupling mechanism force of card tooth 40 removes, and device unlocks.
Preferably, described card tooth 40 inwall has the card tooth inwall inclined-plane 401 of inclination, described ring 30 bottom correspondence of actuating arranges the inclination angle of actuating inclined-plane, inclined-plane, ring outer ring 303, two and vertical direction that coordinates with described card tooth inwall inclined-plane 401 and is less than angle of friction between two contact surface materials.
In the present embodiment, the existence at inclination angle makes to actuate ring 30 and is easy to when moving downward card tooth 40 to push open, thus locks whole device; When actuating after the coupling mechanism force on ring 30 removes, the angle of friction that inclination angle design is less than between two materials, therefore card tooth 40 and actuate between ring 30 can not relative sliding, thus form self-locking structure, actuating the locking state that still can keep whole device after the coupling mechanism force on ring 40 removes.
Preferably, described ring 30 top of actuating has outer ring, the top profile 301 coordinated with spacing ring 20 centre bore, describedly actuate the shoulder 302 arranging in the middle part of ring 30 and close with device body inner ring 105 match profiles, described shoulder 302 external diameter is greater than spacing ring 20 centre bore internal diameter, described spacing ring 20 is limited and actuates ring 30 prolapse upwards device, described in actuate ring 30 top the body inner ring groove 304 coordinated that to match with the installation of device and taking-up instrument be set.
It should be noted that, described spacing ring 20 with between device body 1 by being threaded.
Wherein, described spacing ring 20 is installed on device body 1 top, be connected with device body 1 by screw thread, spacing ring 20 is tightened on after on device body 20, described spacing ring centre bore 201 only allows the shoulder 302 of actuating ring 30 to pass through with upper part, part below described shoulder 302 and shoulder cannot pass through described spacing ring centre bore 201, spacing ring 20 is limited and actuates ring 30 displacement stroke upwards, guarantee to actuate in the not whole device of ring 30.
In above-described embodiment, further, card tooth bottom protrusion 402 is set bottom described card tooth 40, device body inner ring 105 arranges with the joint on described rectangular through-hole 102 base the body inner ring step 1051 matched with card tooth bottom protrusion 402, described main body inner ring step 1051 coordinate with card tooth bottom protrusion 402 make card tooth 40 actuated ring 30 promote under limited after outer displacement one segment distance.
In the present embodiment, preferably, outside the middle and lower part of described device body 1, have seal groove 103, the seal assembly 50 of device is installed in described seal groove 103.
Concrete, described seal assembly 50 tubular structure ringwise, the material of two ends up and down of described seal assembly 50 is metal, for nonmetals are made in the middle part of described seal assembly 50.
In above-described embodiment, preferably, lower body 10 is installed bottom described device body 1, by being threaded between described device body 1 with lower body 10, the described lower body 10 bottom end face place of keeping to the side arranges annular groove 11, and described lower body 10 arranges and seals with tubing hanger centre bore the lower body sealing surface 1002 matched on inclined-plane.
In the present embodiment, described lower body sealing surface 1002 contacts with tubing hanger center bore inner wall face, and form first sealing, described seal assembly 50 is the secondary seal with O type circle, for whole device provides double shield in sealing performance; Wherein, head is sealed into metal sealing, the corrosion resistance of its relatively nonmetal sealing is stronger, sealing life is longer, and secondary seal is the sealing that metal end and nonmetal seal combine, and nonmetal seal has stronger elastic performance, ensure that sealing intensity, the effective spacer medium liquid of metal end, improves the corrosion resistance of seal assembly, improves sealing life.
In the present embodiment, described lower body 10 to match the lower body sealing surface 1002 designed by sealing different inclination angle, inclined-plane from tubing hanger centre bore, and distinctive raised profile design on himself sealing inclined-plane, when ensure that lower body seals, can automatic guide centering under the prerequisite not scratching tubing hanger centre bore sealing surface, and have enough magnitudes of interference; Annular groove 11 on described lower body 10 bottom end face, makes down the distortion of lower body 10 hermetically-sealed construction in process to be more prone to, thus ensure that once sealing success rate; For the operating mode that device needs frequent taking-up to install again, device body 1 saves with the design that lower body 10 separates, lower body 10 seals the cost changing seal; Device body 1 and lower body 10 are threaded connection, and are easy to dismounting.
Hinge structure of the present invention has clear superiority and good effect.The form that the present invention coordinates with card tooth by actuating ring, drives the enlargement and contraction of card tooth, the locking of implement device and unblock to actuate moving up and down of ring.The design that body and lower body separate, is threaded connection two parts, makes the lower body sealed be easy to dismounting and replacing, effectively reduces the cost and activity duration of changing seal.Invention increases the once sealing success rate of the centre bore sealing-locking device that underwater horizontal type production tree tubing hanger uses, effectively reduce time and the cost of underwater operation.
Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. a underwater horizontal type production tree tubing hanger centre bore sealing-locking device, is characterized in that, comprises device body (1), has device body inner ring (105) in described device body (1), install in described device body inner ring (105) and actuate ring (30), described in actuate ring (30) upper and lower displacement in device body (1), described device body (1) top is provided with spacing ring (20), the ring (30) of actuating of spacing ring (20) subtend top offset plays position-limiting action, prevents actuating ring (30) and deviates from from device body inner ring (105), described device body (1) middle and upper part circumferentially evenly has several rectangular through-hole (102), card tooth (40) is all installed in each rectangular through-hole (102), described card tooth (40) laterally can be slided along rectangular through-hole (102), described card tooth (40) can not be deviate from by device body inner ring (105) is spacing from rectangular through-hole (102), described outer ring of actuating ring (30) coordinates with the inwall of card tooth (40) and contacts, describedly actuate push card tooth (40) when ring (30) moves downward and expand outwardly, describedly actuate when ring (30) is moved to bottommost downwards and card tooth (40) close-fitting merges self-locking.
2. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 1, it is characterized in that, described card tooth (40) inwall has the card tooth inwall inclined-plane (401) of inclination, described actuate ring (30) bottom correspondence arrange coordinate with described card tooth inwall inclined-plane (401) actuate inclined-plane, ring outer ring (303), the inclination angle of two inclined-planes and vertical direction is less than the angle of friction between two contact surface materials.
3. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 1, it is characterized in that, described ring (30) top of actuating has the outer ring, top profile (301) coordinated with spacing ring (20) centre bore, described ring (30) middle part of actuating arranges the shoulder (302) closed with device body inner ring (105) match profiles, described shoulder (302) external diameter is greater than the internal diameter of spacing ring centre bore (201), described spacing ring (20) is limited and actuates ring (30) prolapse upwards device.
4. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 1, it is characterized in that, described card tooth (40) bottom arranges card tooth bottom protrusion (402), device body inner ring (105) and the joint of described rectangular through-hole (102) arrange the body inner ring step (1051) matched with card tooth bottom protrusion (402), described main body inner ring step (1051) coordinate with card tooth bottom protrusion (402) make card tooth (40) actuated ring (30) promote under limited after outer displacement one segment distance.
5. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 1, it is characterized in that, have seal groove (103) outside the middle and lower part of described device body (1), in described seal groove (103), seal assembly (50) is installed.
6. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 5, described seal assembly (50) tubular structure ringwise, the material of two ends up and down of described seal assembly (50) is metal, for nonmetals are made in the middle part of described seal assembly (50).
7. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 3, is characterized in that, described in actuate ring (30) top the inner ring groove (304) matched with installation and the taking-up instrument of device be set.
8. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 1, is characterized in that, by being threaded between described spacing ring (20) with device body (1).
9. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as described in as arbitrary in claim 1-8, it is characterized in that, lower body (10) is installed in described device body (1) bottom, by being threaded between described device body (1) with lower body (10), the setting of described lower body (10) seals with tubing hanger centre bore the lower body sealing surface (1002) matched on inclined-plane.
10. a kind of underwater horizontal type production tree tubing hanger centre bore sealing-locking device as claimed in claim 9, it is characterized in that, described lower body (10) the bottom end face place of keeping to the side arranges annular groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272406.XA CN104989315A (en) | 2015-05-26 | 2015-05-26 | Center hole sealing and locking apparatus for tubing hanger of underwater horizontal Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510272406.XA CN104989315A (en) | 2015-05-26 | 2015-05-26 | Center hole sealing and locking apparatus for tubing hanger of underwater horizontal Christmas tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104989315A true CN104989315A (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510272406.XA Pending CN104989315A (en) | 2015-05-26 | 2015-05-26 | Center hole sealing and locking apparatus for tubing hanger of underwater horizontal Christmas tree |
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| CN (1) | CN104989315A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401515A (en) * | 2016-05-31 | 2017-02-15 | 美钻能源科技(上海)有限公司 | Underwater horizontal type Christmas tree fetching and transporting tool |
| CN107420058A (en) * | 2016-05-23 | 2017-12-01 | 美钻能源科技(上海)有限公司 | Subsea production tree tubing hanger center plug running tool |
| CN110939400A (en) * | 2018-09-25 | 2020-03-31 | 中国煤炭地质总局勘查研究总院 | Differential pressure hydraulic anchor |
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
| CN113803464A (en) * | 2021-08-25 | 2021-12-17 | 长江大学 | Crown-shaped metal sealing ring for underwater Christmas tree |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420058A (en) * | 2016-05-23 | 2017-12-01 | 美钻能源科技(上海)有限公司 | Subsea production tree tubing hanger center plug running tool |
| CN107420058B (en) * | 2016-05-23 | 2019-05-24 | 美钻能源科技(上海)有限公司 | Subsea production tree tubing hanger center plug running tool |
| CN106401515A (en) * | 2016-05-31 | 2017-02-15 | 美钻能源科技(上海)有限公司 | Underwater horizontal type Christmas tree fetching and transporting tool |
| CN110939400A (en) * | 2018-09-25 | 2020-03-31 | 中国煤炭地质总局勘查研究总院 | Differential pressure hydraulic anchor |
| CN112377141A (en) * | 2020-12-08 | 2021-02-19 | 重庆前卫科技集团有限公司 | Spare locking device for oil pipe hanger of underwater Christmas tree |
| CN113803464A (en) * | 2021-08-25 | 2021-12-17 | 长江大学 | Crown-shaped metal sealing ring for underwater Christmas tree |
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