CN111911107A - Extrusion type slip hanger - Google Patents
Extrusion type slip hanger Download PDFInfo
- Publication number
- CN111911107A CN111911107A CN202010949202.6A CN202010949202A CN111911107A CN 111911107 A CN111911107 A CN 111911107A CN 202010949202 A CN202010949202 A CN 202010949202A CN 111911107 A CN111911107 A CN 111911107A
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- slip
- hanger
- shell
- extruded
- piece
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- 238000001125 extrusion Methods 0.000 title claims abstract description 59
- 238000009434 installation Methods 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims description 30
- 230000005284 excitation Effects 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000004913 activation Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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)
- Clamps And Clips (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides an extrusion type slip hanger, wherein an extrusion piece is arranged in a slip shell to push slip teeth, and a connecting piece is also connected with the extrusion piece, so that the slip teeth can be pushed while the connecting piece is installed, the slip teeth can tightly hold a casing, the problem that the conventional slip type casing hanger cannot hang the casing under special conditions is avoided, and the success rate of field installation is greatly improved.
Description
Technical Field
The invention relates to the technical field of wellhead slip hangers, in particular to an extrusion type slip hanger.
Background
The slip hanger clamps the casing pipe by the slip teeth sliding downwards, the upper part of the slip hanger is sealed by a seal ring which is manually excited by a screw, and the slip hanger is an important part for hanging the casing pipe in oil drilling and production equipment. Most of the existing slip hangers are suspended by means of self-weight excitation of a sleeve, but in the field drilling process, the surface of the sleeve is inevitably stained with drilling fluid and the like, so that the surface of the sleeve is very smooth, or the steel grade of the sleeve is higher, initial friction force or occlusion force cannot be built between slip teeth and the sleeve to drive the slip teeth to slide downwards, and the slip hangers cannot effectively suspend the sleeve. Aiming at the phenomenon, an excitation device capable of helping the slip hanger to establish initial suspension needs to be designed, the situation that the slip hanger cannot suspend the casing pipe under special conditions is avoided, and actual installation of on-site casing pipe hanging can be facilitated.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem to be solved by the invention is to overcome the defect of suspension failure caused by the fact that the slip clamping force is reduced on the surface of a sleeve pipe in the prior art, so that the extrusion type slip hanger is provided.
In order to solve the technical problems, the invention provides the following technical scheme: an extrusion type slip hanger comprises a slip hanger body,
the hanging assembly comprises a slip shell and a plurality of slip teeth movably arranged in the slip shell, the contact surface of the slip shell and the slip teeth is a conical surface, and the slip teeth contract or separate towards the center of the slip shell when moving along the conical surface;
the mounting assembly comprises a pressing plate arranged at one end of the slip shell and a connecting piece for connecting the pressing plate and the slip shell;
the extrusion assembly comprises an extrusion piece with one end opposite to the slip teeth, and when the extrusion piece is contacted with the slip teeth, the slip teeth are pushed to contract towards the center of the slip shell;
the slip shell is provided with a through hole, and the connecting piece penetrates through the through hole to be connected with the extrusion piece.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the inside of slips casing is formed with the joint passageway that link up, and both ends are installation end and joint end respectively, the slips tooth to when the joint end removes to slips casing center shrink.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the connecting piece pushes the extrusion piece to approach the slip teeth when the pressing plate is installed.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the through hole is along being on a parallel with the axial direction of slips casing is seted up in the installation of slips casing is served, just the through hole with joint passageway intercommunication.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the connecting piece is for arousing the screw, arouse the screw rod of screw with through-hole threaded connection, just the extruded piece shaping in arouse the tip of screw.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the one end that the slips is close to the extruded piece is equipped with domaticly, domatic and the axis of slips casing become an contained angle, just the extruded piece with during domatic contact, promote the slips to slips casing center is close to.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the extruded piece is for locating the inside extrusion piece of slips casing, the one end of extrusion piece extends to in the through-hole, the other end with slips tooth detachable contact, just take shape on the extrusion piece have the sliding part with inside spout sliding connection of slips casing.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the mounting assembly further comprises a sealing element arranged between the pressing plate and the slip shell, and mounting holes communicated with the through holes are formed in the sealing element and the pressing plate.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: as a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the mounting assembly further comprises an excitation nut, the excitation nut is in threaded connection with a nut of the excitation screw, and an elastic washer is further arranged between the excitation nut and the pressing plate.
As a preferable scheme of the extrusion type slip hanger, the extrusion type slip hanger comprises the following components: the through holes are annularly distributed on the installation end along the circumferential direction of the slip shell, and each slip tooth is provided with at least one connecting piece which is contacted with the slip tooth.
The invention has the beneficial effects that: according to the extrusion type slip hanger provided by the invention, the extrusion piece is arranged in the slip shell to push the slip teeth, the connecting piece is also connected with the extrusion piece, and the slip teeth can be pushed while the connecting piece is installed, so that the slip teeth can hold the casing pipe tightly, the problem that the conventional slip type casing pipe hanger cannot hang the casing pipe under special conditions is avoided, and the success rate of field installation is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic view of an extruded slip hanger;
FIG. 2 is a schematic illustration of a slip housing;
FIG. 3 is a schematic view of a press assembly;
FIG. 4 is a schematic illustration of an installation process of the extruded slip hanger;
FIG. 5 is a schematic view of another alternative extrusion assembly;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Example 1
The embodiment provides a squeezing type slip hanger which is structurally shown in fig. 1 and comprises a hanging assembly 100, a mounting assembly 200 and a squeezing assembly 300, wherein the hanging assembly 100 is used for clamping a hanging casing 400 at a wellhead and comprises a slip shell 110 and slip teeth 120, the slip teeth 120 are movably arranged inside the slip shell 110, the contact surface of the slip shell 110 and the slip teeth 120 is a conical surface, and when the slip teeth 120 move along the conical surface, the slip teeth shrink or separate towards the center of the slip shell 110. As the casing 400 enters the slip housing 110, the slip elements 120 are drawn inwardly by the casing 400, thereby gripping the outer wall of the casing 400 so that the casing 400 can be suspended. The installation assembly 200 includes a pressure plate 210 disposed at one end of the slip housing 110 and a coupling member 220 connecting the pressure plate 210 to the slip housing 110. The pressing assembly 300, which is used to push the slip elements 120, includes a pressing member 310 having one end facing the slip elements 120, and pushes the slip elements 120 to be contracted toward the center of the slip housing 110 when the pressing member 310 is in contact with the slip elements 120.
Also, a through hole 112 is formed in the slip housing 110, and the connecting member 220 is connected to the pressing member 310 through the through hole 112. The driving force generated during the installation of the connecting piece 220 is utilized to drive the extrusion piece 310 to move, so that the slip teeth 120 can contract inwards to hold the casing 400 tightly, the biting force of the slip teeth 120 and the casing 400 is enhanced, the suspension effect of the hanger is ensured, the condition that the casing 400 cannot be suspended by the conventional slip type casing 400 hanger under the condition that the surface of the casing 400 is too smooth is avoided, and the success rate of the on-site installation is greatly improved.
The extrusion type hanger provided by the embodiment has the advantages of simple structure and simple and convenient installation process, and can automatically enhance the holding force on the sleeve 400 in the installation process.
Example 2
The embodiment provides an extrusion type slip hanger, which comprises a hanging assembly 100, a slip shell 110 and a plurality of slip elements 120 movably arranged in the slip shell 110, wherein the contact surface between the slip shell 110 and the slip elements 120 is a conical surface, and when the slip elements 120 move along the conical surface, the slip elements shrink or separate towards the center of the slip shell 110; the installation assembly 200 comprises a pressure plate 210 arranged at one end of the slip shell 110, and a connecting piece 220 for connecting the pressure plate 210 and the slip shell 110; a pressing assembly 300 including a pressing member 310 having one end facing the slip elements 120, the pressing member 310 pushing the slip elements 120 to contract toward the center of the slip housing 110 when contacting the slip elements 120; through holes 112 are provided in the slip housing 110 and the connecting members 220 pass through the through holes 112 to connect with the pressing member 310.
As shown in fig. 2, in the slip housing 110 of this embodiment, a through engaging channel 111 is formed inside, and the two ends are respectively an installation end 113 and an engaging end 114, and when the slip teeth 120 move to the engaging end 114, they contract toward the center of the slip housing 110.
When installed, the mounting end 113 is typically positioned on the outside to facilitate mounting of the connector 220. With the vertical installation mode in this embodiment, when the hanger is hung to the four-way inner cavity of the wellhead, the casing 400 is slowly put down, and the slip teeth 120 are driven to slide down. The slip elements 120 are tightened medially against the taper of the contact surface with the slip casing 110, gripping the casing 400 during tightening, and finally securing the casing 400 against further downward movement of the casing 400.
As shown in fig. 2, a through hole 112 in the slip housing 110 opens in a mounting end 113 of the slip housing 110 in a direction parallel to the axial direction of the slip housing 110, the through hole 112 communicates with the snap channel 111, and the top of the slip bowl 120 faces the through hole 112. The connecting member 220, when installed in the through hole 112, moves downward in a direction parallel to the axial direction of the slip housing 110, thereby exerting downward pressure on the pressing member 310 and the slip elements 120, and the contact surfaces of the slip elements 120 with the slip housing 110 are also tapered, so that the slip elements 120 contract inward to grip the casing 400.
In order to simplify the structure, as shown in fig. 3, the connection member 220 in this embodiment is an activation screw 221, a screw shaft 221a of the activation screw 221 is threadedly coupled to the through hole 112, and the pressing member 310 is formed at an end portion of the activation screw 221, so that the pressing member 310 and the connection member 220 are integrated, and the installation of the slip housing 110 and the pressing of the slip elements 120 can be simultaneously performed directly by the activation screw 221 without separately designing the pressing member 310 during the manufacturing and installation.
In order to further change the extrusion of the slips 120 into the pushing force towards the center of the slip shell 110, one end of the slips 120 close to the extrusion piece 310 is provided with a slope surface 121, the slope surface 121 forms an included angle with the axis of the slip shell 110, meanwhile, the lower end of the excitation screw 221 is also provided with a conical surface parallel to the slope surface 121 of the slips 120, and when the excitation screw 221 contacts the slope surface 121, the slips 120 are pushed to be close to the center of the slip shell 110.
To maintain the hanger seal behind the slip casing 400, a seal 230 is also provided between the hold down plates 210 and the slip housing 110. Specifically, as shown in fig. 2, the sealing member 230 is annular, and in this embodiment, a rubber seal is preferable, and both the sealing member 230 and the pressure plate 210 are provided with mounting holes 211 communicating with the through holes 112.
When the activation screw 221 is installed, the seal 230, the installation hole 211 in the pressure plate 210, and the through hole 112 in the slip housing 110 are aligned, the activation screw 221 is inserted, and the activation screw 221 is rotated such that the threads on the threaded shaft 221a engage the threads in the through hole 112.
In order to activate the sealing element 230 for sealing, an activation nut 240 is also provided outside the nut 221b of the activation screw 221, and the activation nut 240 is screwed to the nut 221b of the activation screw 221.
Specifically, the nut 221b of the excitation screw 221 is divided into an upper portion and a lower portion, the cross section of the upper portion is a regular hexagon for rotational force application, the lower portion is cylindrical, and threads are formed on the outer wall. And the diameter of the lower portion is greater than the diameter of the upper portion. The excitation nut 240 is of a bell-shaped structure, and includes a hollow nut sleeve 241, an opening is provided at a lower end of the nut sleeve 241, a screw thread is provided on an inner wall, and the nut sleeve 241 can be sleeved outside the nut 221b of the excitation screw 221 and connected with the screw thread on the outer wall of the nut 221b by the screw thread on the inner wall. The top of the nut sleeve 241 is also provided with a rotating head with a regular hexagonal section.
When the activation nut 240 is coupled to the activation screw 221, since the lower portion of the activation screw 221 is already coupled to the slip housing 110, the activation screw 221 does not rotate but moves vertically with respect to the activation nut 240 when the activation nut 240 is rotated. At the same time, the lower end of the firing nut 240 contacts the pressure plate 210, and rotating the firing nut 240 forces the firing screw 221 to move relatively upward. The lower end of the activation screw 221 has been fixedly attached to the slip housing 110 and the activation nut 240 presses down on the pressure plate 210. Based on this moving relationship, the slip housing 110 and the pressure plate 210 move toward each other, compressing the intermediate seal 230. The sealing member 230 is elastically deformed after being pressed, and as a result, the sealing member 230 is flattened, and the diameter of the inner ring of the annular rubber sealing ring is reduced, so that the sealing member is in close contact with the outer wall of the inner sleeve 400, thereby achieving a sealing effect.
Further, an elastic washer is disposed between the excitation nut 240 and the pressing plate 210 for anti-loose.
As shown in FIG. 2, the through holes 112 in this embodiment are circumferentially spaced 6 along the circumference of the slip housing 110 at the setting end 113 and each slip element 120 has at least one coupling element 220 in contact therewith.
Based on the squeeze slip hanger provided in this embodiment, and with reference to the process of FIG. 4, the process of hanging the casing 400 is as follows:
aligning the hold-down plate 210, the installation hole 211 of the seal 230 and the through hole 112 of the slip housing 110, inserting and rotating the activation screw 221 so that the activation screw 221 makes a preliminary connection with the slip housing 110, but without contacting the activation screw 221 with the slip bowl 120;
after the preliminarily assembled hanger is put into the four-way inner cavity in place, the sleeve 400 is slowly put into the downward clamping channel 111, so that the sleeve 400 drives the slip teeth 120 to be preliminarily engaged;
screwing the six excitation screws 221 in a diagonal multiple sequence, pushing the slips to retract inwards to clamp the casing 400, and confirming that the casing 400 is suspended successfully;
sequentially mounting an elastic washer and an excitation nut 240 on the upper part of each excitation screw 221, and orderly tightening the socket cap screws and the excitation nuts 240 according to requirements for exciting the sealing of the sealing rings;
by this point, the work of suspending the casing 400 is completed.
Example 3
The present embodiment provides a squeeze-type slip hanger, which is different from embodiment 2 in that: extrusion 310 and attachment member 220 are separately and individually provided.
Specifically, as shown in fig. 5, the pressing member 310 is an extrusion block disposed inside the slip housing 110, one end of the extrusion block extends into the through hole 112, the other end of the extrusion block is detachably contacted with the slip teeth 120, and a sliding portion 320 is formed on the extrusion block and is slidably connected with a sliding groove 330 inside the slip housing 110.
The lower end surface of the extrusion block is matched with the slope surface 121 on the slip teeth 120, the upper end of the extrusion block is a sliding part 320 which is matched with a sliding groove 330 in the through hole 112, the sliding part 320 is a cylindrical boss, and the sliding groove 330 is arranged on the side wall of the lower end of the through hole 112. As the link 220 is installed down into the through bore 112, the press piece 310 is pushed into contact with the slip elements 120, causing the slip elements 120 to grip the casing 400.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides an extrusion formula slips hanger which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the suspension assembly (100) comprises a slip shell (110) and a plurality of slip teeth (120) movably arranged in the slip shell (110), wherein the contact surface of the slip shell (110) and the slip teeth (120) is a conical surface, and when the slip teeth (120) move along the conical surface, the slip teeth shrink or separate towards the center of the slip shell (110);
the installation assembly (200) comprises a pressure plate (210) arranged at one end of the slip shell (110) and a connecting piece (220) for connecting the pressure plate (210) and the slip shell (110);
a pressing component (300) which comprises a pressing piece (310) with one end opposite to the slip teeth (120), and when the pressing piece (310) is contacted with the slip teeth (120), the pressing piece pushes the slip teeth (120) to shrink towards the center of the slip shell (110);
the slip shell (110) is provided with a through hole (112), and the connecting piece (220) penetrates through the through hole (112) to be connected with the extrusion piece (310).
2. The extruded slip hanger of claim 1, wherein: the inside of slips casing (110) is formed with joint passageway (111) that link up, and both ends are installation end (113) and joint end (114) respectively, slips tooth (120) to when joint end (114) remove to slips casing (110) center shrink.
3. The extruded slip hanger of claim 2, wherein: the connecting member (220) urges the pressing member (310) toward the slip bowl (120) when the press plate (210) is installed.
4. The extruded slip hanger of claim 3, wherein: the through hole (112) is opened on the installation end (113) of the slip shell (110) along the axial direction parallel to the slip shell (110), and the through hole (112) is communicated with the clamping channel (111).
5. The extruded slip hanger of claim 4, wherein: the connecting piece (220) is an excitation screw (221), a screw rod (221a) of the excitation screw (221) is in threaded connection with the through hole (112), and the pressing piece (310) is formed at the end part of the excitation screw (221).
6. The extruded slip hanger of any of claims 2-5, wherein: the one end that slips (120) are close to extruded piece (310) is equipped with domatic (121), domatic (121) and the axis of slips casing (110) become an contained angle, just extruded piece (310) with during domatic (121) contact, promote slips (120) to slips casing (110) center is close to.
7. The extruded slip hanger of any of claims 2-4, wherein: the extrusion piece (310) is arranged on the inside extrusion block of the slip shell (110), one end of the extrusion block extends to the inside of the through hole (112), the other end of the extrusion block is in separable contact with the slip teeth (120), and a sliding part (320) is formed on the extrusion block and is in sliding connection with a sliding groove (330) inside the slip shell (110).
8. The extruded slip hanger of claim 7, wherein: the installation assembly (200) further comprises a sealing element (230) arranged between the pressing plate (210) and the slip shell (110), and installation holes (211) communicated with the through holes (112) are formed in the sealing element (230) and the pressing plate (210).
9. The extruded slip hanger of claim 8, wherein: the mounting assembly (200) further comprises an excitation nut (240), the excitation nut (240) is in threaded connection with a nut (221b) of the excitation screw (221), and an elastic washer is further arranged between the excitation nut (240) and the pressing plate (210).
10. The extruded slip hanger of claim 8 or 9, wherein: the through holes (112) are distributed annularly along the circumference of the slip shell (110) on the mounting end (113), and each slip element (120) has at least one connecting element (220) in contact with the through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949202.6A CN111911107B (en) | 2020-09-10 | 2020-09-10 | Extrusion type slip hanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949202.6A CN111911107B (en) | 2020-09-10 | 2020-09-10 | Extrusion type slip hanger |
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| Publication Number | Publication Date |
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| CN111911107A true CN111911107A (en) | 2020-11-10 |
| CN111911107B CN111911107B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010949202.6A Active CN111911107B (en) | 2020-09-10 | 2020-09-10 | Extrusion type slip hanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513284A (en) * | 2021-08-27 | 2021-10-19 | 江苏宏泰石化机械有限公司 | Compact shale gas production wellhead assembly |
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| CN210087258U (en) * | 2019-02-18 | 2020-02-18 | 中国海洋石油集团有限公司 | Split casing head slip locking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176427Y (en) * | 1993-11-17 | 1994-09-07 | 华北石油华源管子工具公司修造厂 | Locking casinghead |
| US20030042027A1 (en) * | 2001-06-29 | 2003-03-06 | Heinrich Lang | Hanger assembly |
| CN204386542U (en) * | 2015-01-21 | 2015-06-10 | 潍坊英美石油机械有限公司 | A kind of slips hanger |
| CN207080196U (en) * | 2017-07-17 | 2018-03-09 | 江苏金石机械集团有限公司 | It is anti-extrusion to ruin casing hanger |
| CN207795132U (en) * | 2018-01-15 | 2018-08-31 | 江苏金石富源机械有限公司 | Slips hanger slips locks pin |
| CN208101116U (en) * | 2018-04-24 | 2018-11-16 | 新乡市畅想智能机电有限公司 | A kind of industrial automation extrusion equipment |
| CN209409379U (en) * | 2018-10-22 | 2019-09-20 | 张家港南光包装容器再生利用有限公司 | A kind of mechanical presses equipment of garbage waste |
| CN210087258U (en) * | 2019-02-18 | 2020-02-18 | 中国海洋石油集团有限公司 | Split casing head slip locking device |
| CN110497218A (en) * | 2019-09-04 | 2019-11-26 | 温州齐鸣网络科技有限公司 | A kind of machining strip work holder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513284A (en) * | 2021-08-27 | 2021-10-19 | 江苏宏泰石化机械有限公司 | Compact shale gas production wellhead assembly |
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