CN108561093B - Grabbing-finger type underwater Christmas tree installation tool - Google Patents
Grabbing-finger type underwater Christmas tree installation tool Download PDFInfo
- Publication number
- CN108561093B CN108561093B CN201810484085.3A CN201810484085A CN108561093B CN 108561093 B CN108561093 B CN 108561093B CN 201810484085 A CN201810484085 A CN 201810484085A CN 108561093 B CN108561093 B CN 108561093B
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- Prior art keywords
- finger
- grabbing
- spring
- grabbing finger
- driving
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells operated by fluid means, e.g. actuated by explosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The utility model provides a grab finger formula christmas tree mounting tool under water, includes the collar of arc structure, the collar be four and circumference symmetry sets up, collar and apron fixed connection all be provided with on the collar and be located the centre grab finger actuating cylinder and be located the spring protection shell who grabs finger actuating cylinder both sides, spring protection shell inside is provided with spring and spring rod, the one end and the apron of spring rod pass through bolted connection, the other end of spring rod is provided with the spring uide bushing that mutually support with the spring, grab finger actuating cylinder inside is provided with grabs finger actuating piston, grabs finger actuating piston one end and apron bolted connection, grabs finger actuating piston last to be provided with the spacer ring that plays the locate action, the spacer ring passes through the spacer ring retaining ring to be fixed, the top of grabbing finger actuating cylinder be provided with grab the finger, grab finger through locking actuating head joint on grabbing finger actuating piston, realize grabbing finger locking mechanism's quick unblock, realize the redundant design of instrument, increase tool's reliability.
Description
Technical Field
The invention relates to an underwater Christmas tree installation tool for ocean oil and gas exploitation, which is used for grasping a driving rod of a locking Christmas tree to lock the Christmas tree on a mouth.
Background
Marine oil and gas exploitation has become an important development direction of energy exploitation, and an underwater christmas tree is one of key equipment of an underwater production system for marine oil and gas exploitation, and installation of the underwater christmas tree is an important process for influencing oil and gas exploitation. The research of the matched tools of the underwater Christmas tree in China is in a starting stage, the installation of the Christmas tree is dependent on the installation team of foreign companies, the independent installation capability is not formed, and the development of the matched tools of the Christmas tree is an important reason.
Disclosure of Invention
Aiming at the defects of the prior art, the grabbing-type underwater Christmas tree installation tool solves the problems that the structure of the Christmas tree lowering tool in the prior art is unreasonable, and the locking requirement of the Christmas tree and a wellhead is well met.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a grab finger formula christmas tree mounting tool under water, includes the collar of arc structure, the collar be four and circumference symmetry sets up, collar and apron fixed connection all be provided with on the collar and be located the centre grab finger actuating cylinder and be located the spring protection shell that grabs finger actuating cylinder both sides, spring protection shell inside be provided with spring and spring rod, the one end and the apron pass through bolted connection, the other end of spring rod is provided with the spring uide bushing that mutually supports with the spring, grab finger actuating cylinder inside be provided with grab finger actuating piston, grab finger actuating piston one end and apron bolted connection, grab finger actuating piston on be provided with the spacer ring that plays the locate action, the spacer ring pass through the spacer ring retaining ring fixed, grab finger actuating cylinder's top be provided with grab finger, grab finger through locking actuating head joint on grabbing finger actuating piston.
As an optimization, the spring protection shell is fixedly connected with the mounting ring through bolts, and the spring rod penetrates through the mounting ring to be connected with the cover plate.
As an optimization, the grabbing finger driving cylinder is connected with the mounting ring through bolts, and the grabbing finger driving piston penetrates through the mounting ring to be connected with the cover plate.
As optimization, the grabbing finger is provided with a clamping groove, the grabbing finger and the locking driving head are clamped through the positioning pin, and the grabbing finger is limited through the positioning pin.
As optimization, the grabbing finger is of a fan-shaped structure, the inner side face of the grabbing finger is in contact with the grabbing finger driving piston, and the outer side face of the grabbing finger is in contact with the locking driving head.
As optimization, a sealing gasket is arranged between the grabbing finger driving piston and the grabbing finger driving cylinder.
As optimization, the grabbing finger driving piston is provided with an oil inlet channel and an oil return channel.
The beneficial effects of the invention are as follows: compared with the prior art, the grabbing-type underwater Christmas tree installation tool 1 adopts a grabbing-type locking mode, and can provide enough load for an H4-type connector locked by a Christmas tree and a wellhead; 2. the piston rod is driven in a hydraulic driving mode, so that the opening and closing angles and the grabbing force of the grabbing fingers can be accurately controlled; 3. the spring is adopted as an energy accumulator, after the hydraulic control system is emergently closed in an emergency state, the action of pressure liquid is lost, the finger-grabbing driving cylinder can move upwards under the action of the elastic force of the spring, the quick unlocking of the finger-grabbing locking mechanism is realized, the redundant design of a tool is realized, and the reliability of the tool is improved; 4. the installation and the recovery are convenient, and the working procedures are reduced.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view of the invention A-A;
FIG. 3 is a schematic view of the mounting structure of the present invention;
FIG. 4 is a top view of the gripping finger of the present invention;
FIG. 5 is a B-B end view of the present invention;
FIG. 6 is a diagram of the structure of the C-direction of the present invention;
FIG. 7 is a cross-sectional view of the finger piston rod of the present invention;
the device comprises a cover plate 1, a mounting ring 2, a spring 3, a spring protection shell 4, a spring guide sleeve 5, a finger grabbing driving cylinder 6, a locking driving head 7, a finger grabbing 8, a positioning pin 9, a separation ring retainer ring 10, a separation ring 11 and a finger grabbing driving piston 12 and a spring rod 13.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The utility model provides a grab finger formula christmas tree mounting tool under water, includes the collar 2 of arc structure, collar 2 be four and circumference symmetry sets up, collar 2 and apron 1 fixed connection all be provided with on the collar 2 and be located the centre grab finger actuating cylinder 6 and be located the spring protection shell 4 of grabbing finger actuating cylinder 6 both sides, spring protection shell 4 inside be provided with spring 3 and spring bar 13, spring bar 13's one end and apron 1 pass through bolted connection, spring bar 13's the other end be provided with spring 3 mutually supporting spring guide sleeve 5, grab finger actuating cylinder 6 inside be provided with grab finger actuating piston 12, grab finger actuating piston 12 one end and apron 1 bolted connection, grab finger actuating piston 12 on be provided with the spacer ring 11 that plays the location effect, spacer ring 11 pass through spacer ring 10 fixed, grab finger actuating cylinder 6's top be provided with grab finger 8, grab finger 8 pass through locking actuating head 7 joint on grab finger actuating piston 12.
Preferably, the spring protection shell 4 is fixedly connected with the mounting ring 2 through bolts, and the spring rod 13 penetrates through the mounting ring 2 to be connected with the cover plate 1.
Preferably, the finger drive cylinder 6 is bolted to the mounting ring 2 and the finger drive piston 12 is connected to the cover plate 1 through the mounting ring 2.
As optimization, the grabbing finger 8 is provided with a clamping groove, the grabbing finger 8 and the locking driving head 7 are clamped through the locating pin 9, and the grabbing finger 8 is limited through the locating pin 9.
As optimization, the grabbing finger 8 is of a fan-shaped structure, the inner side face of the grabbing finger 8 is in contact with the grabbing finger driving piston 12, and the outer side face of the grabbing finger 8 is in contact with the locking driving head 7.
Preferably, a sealing gasket is arranged between the gripping finger driving piston 12 and the gripping finger driving cylinder 6.
Preferably, the gripping finger driving piston 12 is provided with an oil inlet passage and an oil return passage.
The utility model provides a grab finger formula subsea tree mounting tool, includes apron, collar, spring protective housing, spring uide bushing, grab finger actuating cylinder, locking actuating head, grab finger, locating pin, spacer ring retaining ring, grab finger actuating piston and spring rod, 13 total main parts, spring protective housing and grab finger actuating cylinder pass through the bolt fastening on the collar; the spring and the spring rod are mounted in the spring guide shell in a matched manner through a spring guide sleeve; the grabbing finger driving piston is fixed in the grabbing finger driving cylinder through the separating ring and the separating ring baffle plate and can only axially move; the spring rod and the grabbing finger drive pistons penetrate through the mounting ring and are mounted on the cover plate through nuts; the grabbing finger is clamped on the grabbing finger driving piston through the locking driving head, the grabbing finger driving piston is a three-step type rod, threads are respectively arranged at the top and the middle of the grabbing finger driving piston, and two L-shaped slender holes are axially formed and used as hydraulic channels; the grabbing finger drives the screw thread at the top of the piston to be matched with the fixing nut for use and is fixed on the cover plate; the separation ring retainer ring is internally provided with threads which are matched with the middle threads of the grabbing finger driving piston and used for axially limiting the grabbing finger driving piston, and the top of the grabbing finger driving cylinder is provided with a flange plate which is used for fixing the installation ring; the inner wall of the grabbing finger driving cylinder is provided with a stepped shaft shoulder for installing a separation ring; the inner wall of the bottom of the grabbing finger driving cylinder is provided with threads which are matched with the threads on the outer wall of the locking driving head and used for fixing grabbing fingers, the cross section of each grabbing finger is in a sector shape, a guide groove is arranged on the outer side of the sector shape and matched with a positioning pin, a stepped shaft shoulder is arranged on the upper part of the inner side of the sector shape, and the lower part of the inner side of the sector shape is a trapezoidal grabbing finger; the top of the grabbing finger is arc-shaped and rolls on the third step shaft shoulder surface of the grabbing finger driving piston, and the inner side shaft shoulder of the grabbing finger is connected with the fourth step shaft shoulder of the grabbing finger driving piston in a hanging mode.
The utility model provides a grab finger type underwater Christmas tree mounting tool, includes spring protection shell 4 and grab finger driving cylinder 6 is fixed on collar 2 through the bolt; the spring 3 and the spring rod 13 are arranged in the spring protection shell 4 in a matched manner through the spring guide sleeve 5; the gripping finger driving piston 12 is fixed in the gripping finger driving cylinder 6 through the separating ring 11 and the separating ring baffle 10 and can only axially move; the spring rod 13 and the gripping finger driving piston 12 penetrate through the mounting ring 2 and are mounted on the cover plate 1 through nuts; the grabbing finger 8 is clamped on the grabbing finger driving piston 12 through the locking driving head 7, and the grabbing finger 8 is controlled to move through the cooperation of the locating pin 9 on the locking driving head 7 and the guide groove on the grabbing finger 8.
The installation process of the invention comprises the following steps: when hydraulic oil enters the upper cylinder body of the grabbing finger driving cylinder 6 through the hydraulic oil channel of the grabbing finger driving piston 12, the grabbing finger driving piston 12 moves upwards to drive the cover plate 1 and the spring rod 13 to move upwards, the spring 3 compresses, meanwhile, the shaft shoulder of the grabbing finger driving cylinder 12 pushes the grabbing finger 8 to move upwards, the grabbing finger 8 is closed under the cooperation of the positioning pin 9 on the locking driving head 7 and the guide groove, the driving column of the H4 type connector of the christmas tree is grabbed, and the tool is integrally pressed down or lifted up to realize the installation operation; after the hydraulic control system is closed in an emergency state, the action of pressure liquid is lost, the spring 3 serves as an energy accumulator, the spring 3 rebounds, and the grabbing finger driving cylinder 6 can move upwards under the action of the elastic force of the spring 3, so that the grabbing finger 7 is opened, and the grabbing finger locking mechanism is unlocked rapidly.
When hydraulic oil enters the lower cylinder body of the grabbing finger driving cylinder 6 through the hydraulic oil channel of the grabbing finger driving piston 12, the grabbing finger driving piston 12 moves downwards to drive the cover plate 1 and the spring rod 13 to move downwards, the spring 3 rebounds, meanwhile, the shaft shoulder of the grabbing finger driving cylinder 12 pushes the grabbing finger 8 to move downwards, the grabbing finger 8 is opened under the cooperation of the positioning pin 9 on the locking driving head 7 and the guide groove, unlocking with the H4 type connector of the christmas tree is achieved, and the tool is lifted up integrally to complete installation work.
The foregoing embodiments are merely specific examples of the present invention, and the scope of the present invention includes, but is not limited to, the forms and styles of the foregoing embodiments, and any suitable changes or modifications made by those skilled in the art consistent with the present invention shall fall within the scope of the present invention.
Claims (7)
1. The utility model provides a grab finger formula tree mounting tool under water, includes collar (2) of arc structure, its characterized in that: the four mounting rings (2) are circumferentially and symmetrically arranged, the four mounting rings (2) are fixedly connected with the cover plate (1), the mounting rings (2) are respectively provided with a middle grabbing finger driving cylinder (6) and spring protection shells (4) positioned at two sides of the grabbing finger driving cylinders (6), springs (3) and spring rods (13) are arranged in the spring protection shells (4), one ends of the spring rods (13) are connected with the cover plate (1) through bolts, spring guide sleeves (5) matched with the springs (3) are arranged at the other ends of the spring rods (13), grabbing finger driving pistons (12) are arranged in the grabbing finger driving cylinders (6), one ends of the grabbing finger driving pistons (12) are connected with the cover plate (1) through bolts, separating rings (11) with positioning functions are arranged on the grabbing finger driving pistons (12), the top ends of the grabbing finger driving cylinders (6) are provided with grabbing fingers (8) through separating ring retaining rings (10), and the grabbing finger driving pistons (8) are locked on the grabbing finger driving heads (7); the grabbing fingers (8) are closed to realize the grabbing of the Christmas tree, and the grabbing fingers (8) are opened to realize the unlocking of the Christmas tree.
2. A gripping finger subsea tree installation tool according to claim 1, wherein: the spring protection shell (4) is fixedly connected with the mounting ring (2) through bolts, and the spring rod (13) penetrates through the mounting ring (2) to be connected with the cover plate (1).
3. A gripping finger subsea tree installation tool according to claim 1, wherein: the grabbing finger driving cylinder (6) is connected with the mounting ring (2) through bolts, and the grabbing finger driving piston (12) penetrates through the mounting ring (2) to be connected with the cover plate (1).
4. A gripping finger subsea tree installation tool according to claim 1, wherein: the clamping groove is formed in the grabbing finger (8), the grabbing finger (8) and the locking driving head (7) are clamped through the locating pin (9), and the grabbing finger (8) is limited through the locating pin (9).
5. A gripping finger subsea tree installation tool according to claim 1, wherein: the grabbing finger (8) is of a fan-shaped structure, the inner side face of the grabbing finger (8) is in contact with the grabbing finger driving piston (12), and the outer side face of the grabbing finger (8) is in contact with the locking driving head (7).
6. A gripping finger subsea tree installation tool according to claim 1, wherein: a sealing gasket is arranged between the grabbing finger driving piston (12) and the grabbing finger driving cylinder (6).
7. A gripping finger subsea tree installation tool according to claim 1, wherein: the grabbing finger driving piston (12) is provided with an oil inlet channel and an oil return channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484085.3A CN108561093B (en) | 2018-05-19 | 2018-05-19 | Grabbing-finger type underwater Christmas tree installation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484085.3A CN108561093B (en) | 2018-05-19 | 2018-05-19 | Grabbing-finger type underwater Christmas tree installation tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561093A CN108561093A (en) | 2018-09-21 |
| CN108561093B true CN108561093B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810484085.3A Active CN108561093B (en) | 2018-05-19 | 2018-05-19 | Grabbing-finger type underwater Christmas tree installation tool |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1269925A (en) * | 1987-06-11 | 1990-06-05 | William H. Turner | Connector for well servicing system |
| CN101377120A (en) * | 2008-10-08 | 2009-03-04 | 宝鸡石油机械有限责任公司 | Sea underwater hydraulic connector |
| CN102182419A (en) * | 2011-04-01 | 2011-09-14 | 宝鸡石油机械有限责任公司 | Hydraulic connecting device for deepwater pipeline |
| CN106837235A (en) * | 2017-03-06 | 2017-06-13 | 长江大学 | A kind of hydraulic-driven jack catchs type underwater connector |
| CN106907123A (en) * | 2017-05-12 | 2017-06-30 | 长江大学 | A kind of hydraulic drive type subsea production tree connector |
| CN107724983A (en) * | 2017-11-22 | 2018-02-23 | 宝鸡石油机械有限责任公司 | A kind of hydraulically-controlled type subsea production tree freed of meeting an urgent need fetches and delivers instrument |
| CN208456537U (en) * | 2018-05-19 | 2019-02-01 | 山东科瑞机械制造有限公司 | One kind grabbing finger-type subsea production tree installation tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9938792B2 (en) * | 2015-11-06 | 2018-04-10 | Vetco Gray, LLC | Remotely operated external tieback connector |
-
2018
- 2018-05-19 CN CN201810484085.3A patent/CN108561093B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1269925A (en) * | 1987-06-11 | 1990-06-05 | William H. Turner | Connector for well servicing system |
| CN101377120A (en) * | 2008-10-08 | 2009-03-04 | 宝鸡石油机械有限责任公司 | Sea underwater hydraulic connector |
| CN102182419A (en) * | 2011-04-01 | 2011-09-14 | 宝鸡石油机械有限责任公司 | Hydraulic connecting device for deepwater pipeline |
| CN106837235A (en) * | 2017-03-06 | 2017-06-13 | 长江大学 | A kind of hydraulic-driven jack catchs type underwater connector |
| CN106907123A (en) * | 2017-05-12 | 2017-06-30 | 长江大学 | A kind of hydraulic drive type subsea production tree connector |
| CN107724983A (en) * | 2017-11-22 | 2018-02-23 | 宝鸡石油机械有限责任公司 | A kind of hydraulically-controlled type subsea production tree freed of meeting an urgent need fetches and delivers instrument |
| CN208456537U (en) * | 2018-05-19 | 2019-02-01 | 山东科瑞机械制造有限公司 | One kind grabbing finger-type subsea production tree installation tool |
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| CN108561093A (en) | 2018-09-21 |
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Effective date of registration: 20230505 Address after: No.157 Lishan Road, Huangdao District, Qingdao City, Shandong Province 266000 Applicant after: Qingdao zhongruiweifei Marine Equipment Co.,Ltd. Applicant after: SHANDONG KERUI MACHINERY MANUFACTURING Co.,Ltd. Applicant after: CHINA University OF PETROLEUM (EAST CHINA) Address before: 257000 Shengli Economic Development Zone, Dongying City, Shandong Province Applicant before: SHANDONG KERUI MACHINERY MANUFACTURING Co.,Ltd. Applicant before: CHINA University OF PETROLEUM (EAST CHINA) |
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