CN203559857U - Blocking device for underwater Christmas tree - Google Patents
Blocking device for underwater Christmas tree Download PDFInfo
- Publication number
- CN203559857U CN203559857U CN201320758038.6U CN201320758038U CN203559857U CN 203559857 U CN203559857 U CN 203559857U CN 201320758038 U CN201320758038 U CN 201320758038U CN 203559857 U CN203559857 U CN 203559857U
- Authority
- CN
- China
- Prior art keywords
- blanking plug
- hole
- cylindrical shell
- blocking device
- production tree
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to a blocking device for an underwater Christmas tree. The blocking device comprises a blocking device cylinder body with an opening in the upper end. The lower end face of the blocking device cylinder body is connected with a metal sealing disc. A square hole groove is formed in the middle in the periphery direction of the blocking device cylinder body. A lock block is arranged in the square hole groove. An elastic shearing pin is arranged above the blocking device cylinder body. A connecting boss is arranged at the bottom of an inner cavity. A pushing sleeve is arranged on the inner cavity of the blocking device cylinder body. The diameter of the outer periphery face of the middle-upper portion of the pushing sleeve is large and is arranged with a hole in the upper portion of the blocking device cylinder body inner cavity. After the outer periphery face moves down, the outer periphery face is arranged with the back end face of the lock block, and the lock block is pushed outwards. A through hole communicated up and down is formed in the inner cavity of the pushing sleeve. A blocking flange is arranged at the lower end of the through hole and is arranged with a blocking bolt which is connected with a connecting boss thread hole. A fishing neck with large hole diameter is arranged on the upper portion of the through hole. A pin hole is formed in the upper portion of the outer periphery of the pushing sleeve and is arranged with the elastic shearing pin. The blocking device is simple in structure and reasonable in arrangement, locking and sealing performance is reliable, mounting and recycling are convenient, and the requirement for repeatable using is met.
Description
Technical field
The utility model relates to a kind of blanking plug that is arranged on subsea production tree inside, comprises tree cap or boll-weevil hanger, belongs to offshore oil oil production equipment technical field.
Background technology
In deep-sea oil recovery process, production tree, as the important component part of subsea production system, is being born the operation important tasks such as adjust flux and pressure, chemical agent injection and wax removal.Subsea production tree produces the mounting means of main valve according to it can be divided into two kinds of vertical production tree and horizontal Christmas trees, and blanking plug as control well internal pressure, prevent from revealing and the critical component of blowout, for two kinds of production trees, be all most important, indispensable.Blanking plug is as the outpost of the tax office that produces passage and external environment isolation, very strict to the requirement of its sealing and stability.Vertical production tree, blanking plug is mainly used in to be installed in production tree process, after completion, vertical production tree must be installed after blanking plug in oil pipe suspensorium, and just removable preventer, carries out the installation of production tree, finally after blanking plug has reclaimed, the production operation of just recovering the oil; And for horizontal Christmas tree, blanking plug is mainly used in completion and normal operation process, and when workover treatment, blanking plug be taken out, therefore, blanking plug also must have good detachable and erectility again.But also there is the place that functional performance is perfect not to the utmost in existing blanking plug.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of blanking plug for subsea production tree, and it has structure and arranges rationally, the feature that functional performance is more perfect.
The utility model for the technical scheme that the problem of the above-mentioned proposition of solution adopts is:
Include the blanking plug cylindrical shell of upper end open, blanking plug cylindrical shell lower surface connection metal seal disc, square hole slot is circumferentially offered at the middle part of blanking plug cylindrical shell, in square hole slot, install lock dog, elastic shear pin is installed in the top of blanking plug cylindrical shell, blanking plug cylinder lumen bottom arranges connection boss, at blanking plug cylinder lumen, install pushing set, the hole phase configuration on the large and blanking plug cylinder lumen top of the outer peripheral face diameter of described pushing set middle and upper part, and it is protruding that the rear end face phase configuration that moves down rear and lock dog promotes lock dog, the inner chamber of pushing set is provided with the through hole running through up and down, the lower end of through hole arranges stop lug, with with the backstop bolt phase configuration that is connected boss screw and is connected, the top of through hole arranges the larger fishing neck in aperture, on the periphery top of pushing set, offer pin-and-hole and elastic shear pin phase configuration.
Press such scheme, described metal sealing disk lower end connects baffle dish, and the periphery of baffle dish is installed on sealing ring.
Press such scheme, on the outer peripheral face of blanking plug cylindrical shell lower end, offer packing groove, in packing groove, be provided with airtight and watertight padding.
Press such scheme, on described metal sealing disk lower surface, offer toroidal cavity.
Press such scheme, the square opening groove bottom arranged outside stop lug that described blanking plug cylindrical shell is circumferentially offered, arranges step and stop lug phase configuration in the bottom surface of lock dog correspondence.
Press such scheme, the importing cone of downward contraction is set in the outer peripheral face lower end of pushing set middle and upper part, the rear end face top of lock dog arranges corresponding inclined-plane (chamfering) and imports cone phase configuration.
Press such scheme, the front end face top of described lock dog arranges oblique concave surface.
Press such scheme, described square hole slot and lock dog circumferentially arrange 3 ~ 6 along blanking plug cylindrical shell.
Press such scheme, between described blanking plug cylindrical shell and pushing set, be installed on guide finger and move axially gathering sill.
The beneficial effects of the utility model are: 1, locking property is reliable, locking mode adopts mechanical lock locking structure, do not need Hydraulic Control System in Water, reduce cost and improved the reliability of underwater operation, after having locked, the elastic shear pin that install on top can limit and promote the displacement that ring produces due to vibrations in process of production, guarantees locking effect; 2, sealing performance is reliable, adopts metal sealing and filler heap sealing double sealing structure, and wherein metal sealing is primary seal, the nonmetal auxiliary seal that is sealed into, and metal sealing inside is toroidal cavity, makes sealing place have elasticity, assurance sealing reliability; Meanwhile, flow-stopping plate is equipped with in metal sealing bottom, can prevent the impact of fluid to resistance sealing position in manufacturing process, guarantees sealing effectiveness, guarantees sealing reliability, realizes the isolation of production tree production path and gas injection path (or external environment condition); 3, the utility model plug structure is simple, arranges rationally, and assembling easily, it is convenient to install and reclaim, and physical life is long, and the disabler after recovery is through changing shear pin and seal, installation exercise be can again transfer, reusable requirement and economy requirement met.
Accompanying drawing explanation
Fig. 1 is the front perspective view of an embodiment of the utility model.
Fig. 2 is the not positive view under locking state of embodiment of the utility model.
Fig. 3 is the positive view under embodiment locking state of the utility model.
Fig. 4 is the partial sectional view of an embodiment Elastic shear pin part of the utility model.
Fig. 5 is that embodiment Elastic shear pin part of the utility model ejects the partial sectional view under locking state.
Fig. 6 is the radial section figure of gathering sill and guide finger structure in embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present utility model in detail.
Include the blanking plug cylindrical shell 8 of upper end open, blanking plug cylindrical shell lower surface arranges bolt connection metal seal disc 3, on described metal sealing disk lower surface, offer toroidal cavity down, in metal sealing disk lower end, connect baffle dish 4, the periphery of baffle dish is installed on O RunddichtringO 5, on the outer peripheral face of blanking plug cylindrical shell lower end, offer packing groove, in packing groove, be provided with airtight and watertight padding 6.At circumferentially uniform 4 square hole slots of the middle part of blanking plug cylindrical shell, in square hole slot, install the lock dog 2 with its phase configuration, described square hole slot communicates with blanking plug cylinder lumen, bottom surface arranged outside stop lug, in the bottom surface of lock dog correspondence, step and stop lug phase configuration are set, the front end face top of lock dog arranges oblique concave surface.2 elastic shear pins are installed in the top of blanking plug cylindrical shell, described elastic shear pin comprises the pin-and-hole lid 13 that is installed in pin-and-hole outer end, in pin-and-hole, be installed on guide 12, guide termination is connected by screw 9 and pin-and-hole lid, in guide, by spring 11, install shear pin 10, the endoporus front end of guide arranges hole shoulder, and the rear end of shear pin arranges shaft shoulder phase configuration with it, for the axial stop of shear pin.Blanking plug cylinder lumen bottom arranges connection boss, connect boss middle part screw is set, at blanking plug cylinder lumen, install pushing set 1, the hole phase configuration on the large and blanking plug cylinder lumen top of the outer peripheral face diameter of described pushing set middle and upper part, and it is protruding that the rear end face phase configuration that moves down rear and lock dog promotes lock dog, the importing cone of downward contraction is set in the outer peripheral face lower end of pushing set middle and upper part, and the rear end face top of lock dog 2 arranges corresponding inclined-plane (chamfering) and imports cone phase configuration.The inner chamber of pushing set is provided with the through hole running through up and down, and the lower end of through hole arranges stop lug, with backstop bolt 7 phase configuration that are connected boss screw and are connected, the top of through hole arranges the larger fishing neck in aperture.On the periphery top of pushing set, offer pin-and-hole and elastic shear pin phase configuration.In addition, between described blanking plug cylindrical shell and pushing set, be installed on respectively guide finger 14 and move axially gathering sill, in order to prevent pushing set rotating relative to blanking plug cylindrical shell.
Transfer when blanking plug is installed, as shown in Figure 2, first blanking plug is assembled, then the special facility joint of transferring is snapped in to the fishing neck that promotes ring 1 upper inside wall, whole blanking plug is sling.Spacer pin 14 is inserted and promoted in ring 1 gathering sill, limit both and in installation process, produce displacement transferring.The assembling that completes thus blanking plug and facility be connected.The instrument of transferring connects blanking plug transfers to certain position place, target location top and stops, and then, transferring the fluid that pumps into goal pressure in path, coordinates disabler airtight and watertight padding 6 to act on, and disabler is pressed into target location, completes the in place of metal sealing 3; Now above transferring facility, excite bumper jar, make it produce downward pressure, make to promote ring 1 and move downward, promote lock dog 2 and circumferentially stretch out, complete locking action; Meanwhile, promote ring 1 top pin-and-hole and can be displaced downwardly to spring shear pin 10 present positions, shear pin 10 springs into automatically, completes and promotes the spacing of ring, avoids it to be subjected to displacement in the course of the work or to produce vibration, guarantees locking effect; So far whole disabler installation locking action completes, and transfers facility and is recoverable to.As shown in Fig. 3,4,5.
When subsea production tree blanking plug is reclaimed in release, first recovery instrument is transferred, and connector is snapped in and promotes ring 1 inner upper fishing neck place, on carry facility, promote ring 1 pulling force that can be subject to upwards, when upper lifting force is loaded on desired value, shear pin 10 can be cut off, on starting, moves on promotion ring 1, until its lower end stop lug moves to backstop bolt 7, in continuation, carry facility, now blanking plug entirety all can be subject to pulling force upwards, on promoting to encircle, move, lock dog 2 rear end faces are without constraint, thereby under the effect of the oblique concave surface pressure in outside, in retraction blanking plug cylindrical shell 8, blanking plug and the release of producing passage have been completed, in continuation, propose the release recovery operation that facility have just completed blanking plug.
Claims (9)
1. the blanking plug for subsea production tree, it is characterized in that including the blanking plug cylindrical shell of upper end open, blanking plug cylindrical shell lower surface connection metal seal disc, square hole slot is circumferentially offered at the middle part of blanking plug cylindrical shell, in square hole slot, install lock dog, elastic shear pin is installed in the top of blanking plug cylindrical shell, blanking plug cylinder lumen bottom arranges connection boss, at blanking plug cylinder lumen, install pushing set, the hole phase configuration on the large and blanking plug cylinder lumen top of the outer peripheral face diameter of described pushing set middle and upper part, and it is protruding that the rear end face phase configuration that moves down rear and lock dog promotes lock dog, the inner chamber of pushing set is provided with the through hole running through up and down, the lower end of through hole arranges stop lug, with with the backstop bolt phase configuration that is connected boss screw and is connected, the top of through hole arranges the larger fishing neck in aperture, on the periphery top of pushing set, offer pin-and-hole and elastic shear pin phase configuration.
2. the blanking plug for subsea production tree as claimed in claim 1, is characterized in that described metal sealing disk lower end connects baffle dish, and the periphery of baffle dish is installed on sealing ring.
3. the blanking plug for subsea production tree as claimed in claim 1 or 2, is characterized in that offering packing groove on the outer peripheral face of blanking plug cylindrical shell lower end, is provided with airtight and watertight padding in packing groove.
4. the blanking plug for subsea production tree as claimed in claim 1 or 2, is characterized in that offering toroidal cavity on described metal sealing disk lower surface.
5. the blanking plug for subsea production tree as claimed in claim 1 or 2, is characterized in that the square opening groove bottom arranged outside stop lug that described blanking plug cylindrical shell is circumferentially offered, and in the bottom surface of lock dog correspondence, step and stop lug phase configuration is set.
6. the blanking plug for subsea production tree as claimed in claim 5, is characterized in that arranging in the outer peripheral face lower end of pushing set middle and upper part the importing cone of downward contraction, and the rear end face top of lock dog arranges corresponding inclined-plane and imports cone phase configuration.
7. the blanking plug for subsea production tree as claimed in claim 6, is characterized in that the front end face top of described lock dog arranges oblique concave surface.
8. the blanking plug for subsea production tree as claimed in claim 1 or 2, is characterized in that described square hole slot and lock dog circumferentially arrange 3 ~ 6 along blanking plug cylindrical shell.
9. the blanking plug for subsea production tree as claimed in claim 1 or 2, is characterized in that being installed on guide finger and moving axially gathering sill between described blanking plug cylindrical shell and pushing set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758038.6U CN203559857U (en) | 2013-11-27 | 2013-11-27 | Blocking device for underwater Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758038.6U CN203559857U (en) | 2013-11-27 | 2013-11-27 | Blocking device for underwater Christmas tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559857U true CN203559857U (en) | 2014-04-23 |
Family
ID=50509585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320758038.6U Expired - Fee Related CN203559857U (en) | 2013-11-27 | 2013-11-27 | Blocking device for underwater Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559857U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298442A (en) * | 2015-11-02 | 2016-02-03 | 江苏科技大学 | Mobile and rotary type linear coverage tool |
| CN105298444A (en) * | 2015-11-02 | 2016-02-03 | 江苏科技大学 | Rotary type linear covering 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 |
| CN113803464A (en) * | 2021-08-25 | 2021-12-17 | 长江大学 | Crown-shaped metal sealing ring for underwater Christmas tree |
| CN114901918A (en) * | 2019-10-16 | 2022-08-12 | 普莱克薛斯海洋系统有限公司 | Top blanking plug retention system |
| CN115012871A (en) * | 2022-07-08 | 2022-09-06 | 中海艾普油气测试（天津）有限公司 | Tubing hanger internal plugging device |
-
2013
- 2013-11-27 CN CN201320758038.6U patent/CN203559857U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298442A (en) * | 2015-11-02 | 2016-02-03 | 江苏科技大学 | Mobile and rotary type linear coverage tool |
| CN105298444A (en) * | 2015-11-02 | 2016-02-03 | 江苏科技大学 | Rotary type linear covering tool |
| CN105298444B (en) * | 2015-11-02 | 2017-10-03 | 江苏科技大学 | A kind of rotary linear covering instrument |
| CN105298442B (en) * | 2015-11-02 | 2017-10-03 | 江苏科技大学 | A kind of movable and rotary type linearly covers instrument |
| 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 |
| CN114901918A (en) * | 2019-10-16 | 2022-08-12 | 普莱克薛斯海洋系统有限公司 | Top blanking plug retention system |
| CN113803464A (en) * | 2021-08-25 | 2021-12-17 | 长江大学 | Crown-shaped metal sealing ring for underwater Christmas tree |
| CN115012871A (en) * | 2022-07-08 | 2022-09-06 | 中海艾普油气测试（天津）有限公司 | Tubing hanger internal plugging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203559857U (en) | Blocking device for underwater Christmas tree | |
| CN205117260U (en) | Prevent hydraulic pressure setting tool of premature setting | |
| CN106837235A (en) | A kind of hydraulic-driven jack catchs type underwater connector | |
| CN102606106B (en) | A kind of ring packing assembly of bidirectional metal seal structure | |
| CN103670312A (en) | Underwater steel wire rope operation equipment with releasing and withdrawing functions | |
| CN202937219U (en) | Lip type conical surface self-seal blowout-preventive well repair device | |
| CN104594847A (en) | Switching type tubing pump blanking plug | |
| CN203757252U (en) | Deepwater multi-loop connecting terminal | |
| CN210164437U (en) | Hydraulic control salvageable safety joint | |
| CN205207745U (en) | Floating ball valve | |
| CN103603617A (en) | Gas injection tubular column releasing device | |
| CN102383757B (en) | Connection device for underwater production tree cup | |
| CN207863882U (en) | A kind of oil pipe head connector | |
| CN210068056U (en) | Blowout preventer and Christmas tree | |
| CN102383756B (en) | Top packer for subsea Christmas tree | |
| CN104653140A (en) | Wellhead anti-theft device | |
| CN105569593A (en) | Secondary locking device used for underwater oil gas drilling and production equipment | |
| CN202381022U (en) | Connecting device of underwater oil extraction tree cap | |
| CN102182418B (en) | Joint device for underwater dry-type Christmas tree sealed cabin | |
| CN205154085U (en) | Instrument is retrieved to wire rope blanking plug | |
| CN206016755U (en) | A kind of sucker rod pump snubbing serving down-hole plugging device | |
| CN201412128Y (en) | Multifunctional oil drain device | |
| CN202483501U (en) | Top blanking plug of underwater Christmas tree | |
| CN102383758B (en) | Guide base wellhead locking device of underwater Christmas tree | |
| CN205101743U (en) | Suction anchor pump interface sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: KINGDREAM PLC |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180307 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Patentee after: KINGDREAM PLC Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20211127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |