CN107269244A - Ring packing assembly - Google Patents

Ring packing assembly Download PDF

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Publication number
CN107269244A
CN107269244A CN201710711430.8A CN201710711430A CN107269244A CN 107269244 A CN107269244 A CN 107269244A CN 201710711430 A CN201710711430 A CN 201710711430A CN 107269244 A CN107269244 A CN 107269244A
Authority
CN
China
Prior art keywords
ring
lock ring
metal sealing
packing assembly
sealing body
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
Application number
CN201710711430.8A
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Chinese (zh)
Other versions
CN107269244B (en
Inventor
弓大为
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Rosy Petroleum Equipment Technology Service Co Ltd
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Shanghai Rosy Petroleum Equipment Technology Service Co Ltd
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Application filed by Shanghai Rosy Petroleum Equipment Technology Service Co Ltd filed Critical Shanghai Rosy Petroleum Equipment Technology Service Co Ltd
Priority to CN201710711430.8A priority Critical patent/CN107269244B/en
Publication of CN107269244A publication Critical patent/CN107269244A/en
Application granted granted Critical
Publication of CN107269244B publication Critical patent/CN107269244B/en
Active legal-status Critical Current
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/035Well heads; Setting-up thereof specially adapted for underwater installations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy

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  • 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)
  • Gasket Seals (AREA)

Abstract

The present invention relates to sealing device technical field, and in particular to a kind of ring packing assembly, for being sealed between casing hanger high-pressure well is oral, and high-pressure well is oral to have lock ring groove;Ring packing assembly includes:Metal sealing body, the inner surface of metal sealing body and outer surface have raised metal sealing contact, are contacted for the inner surface oral with the outer surface and high-pressure well of casing hanger;And lock ring, lock ring couples with metal sealing body, and when being snapped into lock ring groove, metal sealing body is locked between the outer surface of casing hanger and the oral inner surface of high-pressure well.Casing hanger is sealed by metal seal, fixed again by lock ring in lock ring groove, make metal seal and the oral close connection sealing of high-pressure well, two way seal and be without any pure metal seal sealing for adding other secondary materials above and below realizing, the various operating modes of current oil drilling and production can be met, it is possible to achieve the high-pressure metal sealing under the conditions of wide temperature.

Description

Ring packing assembly
Technical field
The present invention relates to sealing device technical field, and in particular to a kind of ring packing assembly.
Background technology
Underwater well head head system ring packing assembly ASA (Annulus Seal Assembly) is underwater well head head system Most critical part, its sealing property quality and work reliability directly affect and determine whole marine petroleum exploitation The security of system and operation life-span.Ring packing assembly ASA seal pressure grade belongs to high pressure even super-pressure, and operating mode is multiple It is miscellaneous, it is all very high to its performance requirement.Designed sealing device is in addition to it disclosure satisfy that sealing, corrosion resistance, it is necessary to protect Demonstrate,prove it and meet wide temperature range (design temperature:- 20 DEG C--150 DEG C), long Years Of Service, impact resistance, the performance requirement such as antifatigue.Ring Shape seal assembly can only be sat by transferring instrument remote control and put to underwater wellhead setting position and reach sealing state, Sealing difficulty is further increased, also needs to be recovered after the completion of its mission, therefore decentralization recovery is simple, reliable, it is total to be also sealing The problem of considering into design.
Underwater wellhead ring packing assembly is that pressure packing is provided between each layer casing hanger and underwater wellhead, is The pressure control equipment of underwater well head head system, what its sealing property quality directly influenced the work of whole underwater well head head system can By property and stability.
Underwater well head head system proposes very high requirement to Sealing Technology, including high seal pressure grade, anti-H2S rings The encapsulant in border, sealedly wide temperature range etc..China there is no the such deep water hydrocarbon drilling-production equipment of underwater well head head system at present, system One bottleneck of about its development is that China not yet develops the sealing device suitable for ocean deepwater oil and gas production system. There is larger gap both at home and abroad in terms of ocean deepwater Sealing Technology.
Existing conventional seals assembly is typically made up of top driving body and lower seal body.Seal assembly inwall has and transferred The structure being engaged of instrument.With transferring the seal assembly after instrument coordinates along casing hanger tripping in, tripping in casing hanger outer ring After the shaft shoulder, the top driving body extruding lower seal body of sealing ring assembly is until reach sealing effectiveness.
Existing conventional seals assembly is mainly characterized by:Lip is sealed, and a part utilizes the caoutchouc elasticity being surrounded by lip Body is when body is extruded, elastomer lip, realizes and seals with body.Also have plenty of and directly squeezed on the inside of metal lip Metallic object is pressed, so that lip extruding is sealed with body.The weak point of this structure is exactly because lip is relatively thin, in seal assembly During marine riser and preventer, lip opening side is easier to scratch, so as to cause seal failure.
The content of the invention
Weak point present in regarding to the issue above, the present invention provides a kind of ring packing assembly.
To achieve the above object, the present invention provides a kind of ring packing assembly, for high-pressure well it is oral with casing hanger it Between sealed, the high-pressure well it is oral have lock ring groove;
The ring packing assembly includes:
Metal sealing body, the inner surface of the metal sealing body and outer surface have raised metal sealing contact, Outer surface and the oral inner surface of the high-pressure well for being hung with described sleeve pipe are contacted;With
Lock ring, the lock ring couples with the metal sealing body, and when being snapped into the lock ring groove, by the gold Category seal body is locked between the outer surface of described sleeve pipe extension and the oral inner surface of the high-pressure well.
In above-mentioned ring packing assembly, further, the metal sealing body interior is perfused with compressible bullet Property body or incompressible liquid, for extruding the metal sealing body, to cause the metal sealing contact to produce to institute State casing hanger and the oral reaction force of the high-pressure well.
The ring packing assembly that embodiments in accordance with the present invention are provided, is sealed casing hanger by metal seal, then lead to Cross lock ring fix in lock ring groove, make metal seal and high-pressure well it is oral it is close connection sealing, realize above and below two way seal And be that, without any pure metal seal sealing for adding other secondary materials, current oil drilling and life can be met The various operating modes of production, it is possible to achieve the high-pressure metal sealing under the conditions of wide temperature.
In addition, the ring packing assembly provided according to the above embodiment of the present invention also has following technical characteristic:
In above-mentioned ring packing assembly, it is preferable that the elastomer is rubber, the liquid is oil or water.
In above-mentioned ring packing assembly, further, the lock ring outer surface is configured with lug boss, the lug boss It is adapted with the shape of the lock ring groove.
In above-mentioned ring packing assembly, further, the lug boss is raised teeth patterning, the lock ring groove For the teeth patterning concaved.
In above-mentioned ring packing assembly, further, in addition to driving pressure ring, the inclined-plane of the driving pressure ring and institute The inclined-plane for stating lock ring is in contact;
Wherein,
It is described driving pressure ring inclined-plane below be machined with flat contact surface, be machined with above the inclined-plane of the lock ring with The contact plane of the flat contact surface engaging.
In above-mentioned ring packing assembly, further, in addition to main body, the main body is arranged at and the lock Between ring and the metal sealing body;
Wherein, the main body and the metal sealing body is are threadedly coupled, and the main body and the lock ring pass through Lock ring anti-rotation pin connection.
In above-mentioned ring packing assembly, further, in addition to drive pin, the drive pin, the drive pin is Six are uniformly distributed in the main body one week and with dust-proof seal ring, the upper inclined surface of the drive pin and the lock ring Lower bevel is contacted, the top contact that lower surface is hung with described sleeve pipe, to push up the drive pin, to cause the lock ring It is flared out being locked into the lock ring groove.
In above-mentioned ring packing assembly, further, in addition to positioning wire, the positioning wire is arranged at described Between main body and the metal sealing main body.
In above-mentioned ring packing assembly, further, in addition to linkage ring, the linkage ring is fastened on described main Between body and the driving pressure ring.
The additional aspect and advantage of the present invention will be provided in following description section, partly will become bright from following description It is aobvious, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the structural representation of annular seal assembly in one embodiment of the invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Example is applied to further describe the present invention.It should be noted that in the case where not conflicting, in embodiments herein and embodiment Feature can be mutually combined.
Many details are elaborated in the following description to fully understand the present invention, and still, the present invention can be with It is different from mode described here to implement using other, therefore, protection scope of the present invention is not by following public specific The limitation of embodiment.
As shown in figure 1, the embodiments of the invention provide ring packing assembly, in high-pressure well oral 1 and casing hanger 10 Between sealed, high-pressure well oral 1 have lock ring groove 11;
Ring packing assembly includes:Metal sealing body 18 and lock ring 4;
Wherein, the inner surface 15 of metal sealing body 18 and outer surface 12 have raised metal sealing contact, for The inner surface 13 of the outer surface 14 and high-pressure well oral 1 of casing hanger 10 is contacted;
Lock ring 4, lock ring 4 is connected with metal sealing body 18, and is fixed with lock ring groove 11.
It is to be appreciated that simple for diagram, Fig. 1 illustrate only along the portion on the left of the axis of high-pressure well oral 1 Point, do not show that with the left part along the symmetrical whole circumference part in axis.The size of aforementioned metal sealed contacts is smaller, Therefore in Fig. 1 it does not appear that.When metal sealing body 18 is pressed between high-pressure well oral 1 and casing hanger 10 When, using the metal sealing contact, metal sealing body 18 can be lifted respectively between high-pressure well oral 1 and casing hanger 10 Bond strength.
Casing hanger is sealed by metal seal, then fixed by lock ring in lock ring groove, makes metal seal and height The oral close connection of kill-job is simultaneously sealed, realize above and below two way seal and also be without it is any add other secondary materials it is pure Metal seal sealing, the various operating modes of current oil drilling and production can be met, it is possible to achieve under the conditions of wide temperature High-pressure metal is sealed.
In the above-mentioned technical solutions, compressible elastomer or incompressible liquid are perfused with inside metal sealing body 18 Body, for extruding metal sealing body 18, to cause metal sealing contact to produce oral to casing hanger 10 and high-pressure well 1 anti-work Firmly.Further, elastomer is rubber, and liquid is oil or water.By in the inside castable rubber of metal sealing body 18 or oil Or water, can promote metal sealing contact and casing hanger 10 outer surface 14 and high-pressure well oral 1 inner surface 13 it is even closer Laminating, improves sealing effectiveness.
In the above-mentioned technical solutions, the outer surface of lock ring 4 is configured with lug boss, and lug boss is mutually fitted with the shape of lock ring groove 11 Match somebody with somebody.Wherein, lug boss is raised teeth patterning, and lock ring groove 11 is the teeth patterning concaved.Lug boss can also be raised The teeth patterning of different angles, lock ring groove 11 can also be the different angle teeth patternings that concave, raised tooth and depression tooth Mutual clamping, for locking annular seal assembly and high-pressure well oral 1, above-mentioned mounting means serves lock quick and easy for installation Determine effect.
In another technical scheme, in addition to driving pressure ring 2, the inclined-plane of driving pressure ring 2 connects with the inclined-plane of lock ring 4 Touch, the angle on two inclined-planes is identical, in order to preferably laminating, it is to avoid bad due to fitting, cause lock ring 4 to move bad ask Topic.Flat contact surface 19 is machined with below the inclined-plane of driving pressure ring 2, is machined with above the inclined-plane of lock ring 4 and plane contact The plane that face 19 engages can avoid the ramp effect on the inclined-plane of lock ring 4 and driving pressure ring in decentralization process, cause lock ring 4 to shift to an earlier date Open.
In another technical scheme, in addition to main body 5, main body 5 be arranged at lock ring 4 and metal sealing body 18 it Between;Wherein, main body 5 and metal sealing body 18 is are threadedly coupled, and main body 5 and lock ring 4 are positioned by lock ring stop pin 6. Wherein main body 5 is anterior inserts the rear end of metal sealing body 18 and by the positioning and locking of steel wire 8, for improving main body 5 and gold Belong to the steadiness that seal body 18 is connected, further improve the stability of ring packing assembly.
In another technical scheme, in addition to drive pin 7, the drive pin 7 six is uniformly distributed in one week of main body 5 And the upper inclined surface with the drive pin 7 of dust-proof seal ring 9 is contacted with the lower bevel of lock ring 4, lower surface 17 and casing hanger 10 Top 16 is contacted, that is, seal assembly in place when drive pin 7 upper inclined surface drive lock ring 4 lower inclined plane, promote lock ring 4 to Outer open is locked into lock ring groove 11.
In another technical scheme, in addition to alignment pin 6, alignment pin 6 is arranged at the top of main body 5.It is fixed by alignment pin 6 Position lock ring avoids movement, good positioning effect.
In another technical scheme, in addition to linkage ring 3, linkage ring 3, which is threadedly attached in, drives the sidepiece of pressure ring 2.Connection Rotating ring 3 is equal with the inner side of driving pressure ring 2, it is to avoid raised, influence operation occur.
When specifically used:In the presence of running tool thrust F, driving pressure ring 2 using with the flat contact surface 19 of lock ring 4 to Lower promotion main body 5 and metal sealing body 18, there is an equal angular in the outside 14 of metal sealing body 18 and casing hanger 10 Mating surface, when causing the bottom of drive pin 7 to be contacted with the top 16 of casing hanger 10 in thrust, the top of drive pin 7 The inner side effect driving lock ring 4 on inclined-plane and lock ring 4 is flared out, and promotes to drive the contact plane 19 of pressure ring 2 and lock ring 4 to be moved to Contact of incline plane, by driving the slope driving lock ring 4 of pressure ring 2 outwardly against entering well head head lock ring groove 11.
The bottom of main body 5 is contacted with the top 16 of casing hanger 10 simultaneously, and seal assembly is installed in place, now seal assembly Metal sealing body 18 be squeezed into the annular space of casing hanger 10 and high-pressure well oral 1, metal sealing body 18 it is interior The metal sealing contact that there are three projections side 15 contacts with the outer surface 14 of casing hanger 10 and realizes metal sealing, metal sealing sheet Also there is the hard contact of three projections the outer surface 12 of body 18 and realizes metal sealing while being contacted with oral 1 inner surface 13 of high-pressure well.
Seal assembly positive hydraulic action metal sealing body 18 just similar D type sealing rings, metal sealing sheet 18 inner surface 15 and outer surface 12 are close with the metal between the inner surface 13 of the outer surface 14 of casing hanger 10 and high-pressure well oral 1 Envelope is more effective.When pressure testing reverse from the bottom of seal assembly due to seal assembly main body 5 and the top of metal sealing body 18 Position remained stationary as in the presence of lock ring 4, therefore metal sealing body 18 this D types sealing ring can equally become to inside and outside Shape, so as to realize the effect of metal sealing.The ring packing assembly of the design both realized above and below two way seal and also be without Any pure metal sealing for adding other secondary materials.
Seal assembly has selected erosion-resisting metal material, can meet the various operating modes of current oil drilling and production, The high-pressure metal sealing under the conditions of wide temperature can be realized.
1. the key point of the design is to be produced using the inside of metal sealing body 18 for the hollow incompressible elastomer of perfusion Raw reaction force, so as to realize that the surfaces externally and internally of metal sealing body 18 is implemented and high-pressure well mouth respectively at the outer surface of casing hanger 10 First 1 inner surface 13 realizes effective metal sealing;
2. there is identical angle the outer surface 14 using the inner surface 15 of metal sealing body 18 and casing hanger 10, in feeding work Easily seal assembly is pressed into place in the presence of tool down thrust and makes metal sealing body 18 in the presence of whole inclined-plane Metal sealing is realized between overall deformation and high-pressure well oral 1;
3. the contact plane 19 between driving pressure ring 2 and lock ring 4 can ensure that seal assembly will not be carried in decentralization process Preceding sit is hung, and only main body 5 and drive pin 7 are contacted with the top 16 of casing hanger 10 could realize seal assembly seat extension, and this When, extruded on 45 degree inclined-planes of lock ring 4 and lock ring groove 11 further such that seal assembly completely in place.
4. this programme of metal sealing body 18 is monoblock type, it can also be easy to simplify processing with welding up and down;
5. metal sealing body 18 is threadedly coupled with the connected mode of main body 5 using moment of torsion, it would however also be possible to employ retaining ring Form to reach the effect of locking;The perfusion of metal sealer 18 elastomer can also reach elasticity using suitable liquid is irrigated The effect of body.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

1. a kind of ring packing assembly, for being sealed between high-pressure well oral (1) and casing hanger (10), the high-pressure well Oral (1) has lock ring groove (11);
The ring packing assembly includes:
Metal sealing body (18), the inner surface (15) of the metal sealing body (18) and outer surface (12) have raised gold Belong to sealed contacts, for hanging the outer surface (14) of (10) and the inner surface (13) of the high-pressure well oral (1) with described sleeve pipe Contact;With
Lock ring (4), the lock ring (4) couples with the metal sealing body (18), and is being snapped into the lock ring groove (11) When, the outer surface (14) and the high-pressure well that the metal sealing body (18) is locked in into described sleeve pipe extension (10) are oral (1) between inner surface (13).
2. ring packing assembly according to claim 1, it is characterised in that irrigated inside the metal sealing body (18) There are compressible elastomer or incompressible liquid, for extruding the metal sealing body (18), to cause the metal Sealed contacts produce the reaction force that (10) and the high-pressure well oral (1) are hung to described sleeve pipe.
3. ring packing assembly according to claim 2, it is characterised in that the elastomer is rubber, the liquid is Oil or water.
4. ring packing assembly according to claim 1, it is characterised in that lock ring (4) outer surface is configured with projection The shape of portion, the lug boss and the lock ring groove (11) is adapted.
5. ring packing assembly according to claim 4, it is characterised in that the lug boss is raised teeth patterning, The lock ring groove is the teeth patterning concaved.
6. the ring packing assembly according to claim any one of 1-5, it is characterised in that also including driving pressure ring (2), institute The inclined-plane for stating driving pressure ring (2) is in contact with the inclined-plane of the lock ring (4);
Wherein,
Flat contact surface (19) is machined with below the inclined-plane of the driving pressure ring (2), is added above the inclined-plane of the lock ring (4) Work has the contact plane engaged with the flat contact surface (19).
7. the ring packing assembly according to claim any one of 1-6, it is characterised in that described also including main body (5) Main body (5) is arranged between the lock ring (4) and the metal sealing body (18);
Wherein, the main body (5) and the metal sealing body (18) are threaded connection, the main body (5) and the lock Ring (4) is connected by lock ring stop pin (6).
8. ring packing assembly according to claim 7, it is characterised in that also including drive pin (7), the drive pin (7), the drive pin (7) is uniformly distributed in the main body (5) one weeks and with dust-proof seal ring (9) for six, described to drive The upper inclined surface of dynamic pin (7) is contacted with the lower bevel of the lock ring (4), and lower surface (17) hang the top of (10) with described sleeve pipe (16) contact, to push up the drive pin (7), the lock ring groove (11) is locked into cause the lock ring (4) to be flared out.
9. ring packing assembly according to claim 8, it is characterised in that also including positioning wire (8), the positioning steel Silk (8) is arranged between the main body (5) and the metal sealing main body (18).
10. the ring packing assembly according to claim any one of 8-9, it is characterised in that also including linkage ring (3), institute Linkage ring (3) is stated to be fastened between the main body (5) and the driving pressure ring (2).
CN201710711430.8A 2017-08-18 2017-08-18 Annular seal assembly Active CN107269244B (en)

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Application Number Priority Date Filing Date Title
CN201710711430.8A CN107269244B (en) 2017-08-18 2017-08-18 Annular seal assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710711430.8A CN107269244B (en) 2017-08-18 2017-08-18 Annular seal assembly

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CN107269244A true CN107269244A (en) 2017-10-20
CN107269244B CN107269244B (en) 2023-07-04

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360997A (en) * 2018-05-09 2018-08-03 上海霞为石油设备技术服务有限公司 A kind of new type of deep-water annular space seal assembly device
CN108487874A (en) * 2018-05-09 2018-09-04 上海霞为石油设备技术服务有限公司 A kind of novel annular space seal assembly device
CN109000914A (en) * 2018-07-11 2018-12-14 中海石油(中国)有限公司湛江分公司 A kind of experimental rig and method of ring packing assembly seal body
CN110552651A (en) * 2018-06-04 2019-12-10 上海霞为石油设备技术服务有限公司 novel deep water well head equipment
CN114320211A (en) * 2020-10-09 2022-04-12 中国海洋石油集团有限公司 Thermal recovery positioning insertion sealing device

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CA2752931A1 (en) * 2010-09-22 2012-03-22 Stream-Flo Industries Ltd. Wellhead seal device to seal casing
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CN202937209U (en) * 2012-11-14 2013-05-15 中国石油大学(华东) Lowering tool for well-mouth head
CN203131025U (en) * 2013-01-10 2013-08-14 上海新莲泵阀有限公司 Metal seal ring with elastic deformation under stress
CN105443067A (en) * 2015-11-25 2016-03-30 南京伟业机械有限公司 Metal sealing tubing hanger for fracturing and gas recovery wellhead
CN207728338U (en) * 2017-08-18 2018-08-14 上海霞为石油设备技术服务有限公司 Ring packing assembly

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CN207728338U (en) * 2017-08-18 2018-08-14 上海霞为石油设备技术服务有限公司 Ring packing assembly

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108360997A (en) * 2018-05-09 2018-08-03 上海霞为石油设备技术服务有限公司 A kind of new type of deep-water annular space seal assembly device
CN108487874A (en) * 2018-05-09 2018-09-04 上海霞为石油设备技术服务有限公司 A kind of novel annular space seal assembly device
CN108487874B (en) * 2018-05-09 2024-02-13 上海霞为石油设备技术服务有限公司 Annular space sealing assembly device
CN108360997B (en) * 2018-05-09 2024-02-13 上海霞为石油设备技术服务有限公司 Annular sealing assembly device for deep water
CN110552651A (en) * 2018-06-04 2019-12-10 上海霞为石油设备技术服务有限公司 novel deep water well head equipment
CN110552651B (en) * 2018-06-04 2024-06-11 上海霞为石油设备技术服务有限公司 Novel deep water wellhead equipment
CN109000914A (en) * 2018-07-11 2018-12-14 中海石油(中国)有限公司湛江分公司 A kind of experimental rig and method of ring packing assembly seal body
CN109000914B (en) * 2018-07-11 2024-02-02 中海石油(中国)有限公司湛江分公司 Test device and method for sealing body of annular sealing assembly
CN114320211A (en) * 2020-10-09 2022-04-12 中国海洋石油集团有限公司 Thermal recovery positioning insertion sealing device
CN114320211B (en) * 2020-10-09 2024-03-08 中国海洋石油集团有限公司 Thermal recovery positioning insertion sealing device

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