CN119981751B - A clamp-type quick-install wellhead device and installation method thereof - Google Patents
A clamp-type quick-install wellhead device and installation method thereof Download PDFInfo
- Publication number
- CN119981751B CN119981751B CN202510472779.5A CN202510472779A CN119981751B CN 119981751 B CN119981751 B CN 119981751B CN 202510472779 A CN202510472779 A CN 202510472779A CN 119981751 B CN119981751 B CN 119981751B
- Authority
- CN
- China
- Prior art keywords
- wellhead device
- sealing
- rotary
- hanger
- device 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.)
- Active
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application relates to a clamp type quick-mounting wellhead device and an installation method thereof, comprising a wellhead device body, a clamp type quick-mounting wellhead device and a clamp type quick-mounting wellhead device, wherein the wellhead device body is provided with an installation groove, and the groove wall of the installation groove is provided with a plurality of sealing grooves; the casing hanger is arranged at the bottom of the mounting groove, and is provided with a casing hanger main sealing element which is connected with the corresponding sealing groove; the oil pipe hanger is arranged on the upper part of the rotary sealing sleeve, the rotary sealing sleeve is provided with a rotary expansion assembly and a second sealing assembly, the rotary expansion assembly is arranged outside the rotary expansion assembly, and the second sealing assembly is connected with the corresponding sealing groove. Compared with the prior art, the application can prevent the problems of sealing failure and installation failure caused by the fact that the hanger is not installed in place, thereby improving the installation efficiency.
Description
Technical Field
The application relates to the field of petroleum exploitation equipment, in particular to a clamp type quick-assembly wellhead device and an installation method thereof.
Background
In the oil and gas well drilling process, the fast-assembled wellhead device is key equipment for oil and gas exploitation, has wide application, and can be used in various fields of conventional and non-conventional oil and gas field development, offshore operation, complex geological conditions, emergency repair and the like. The quick connecting component is used for quickly connecting the sleeve hanger and the wellhead to form an independent bearing mechanism, and a sealing technology is used for sealing a gap between the sleeve and the wellhead, so that the installation efficiency and the safety of the wellhead device are improved. However, the existing quick-assembly wellhead device generally has the problem that the hanger is inclined after being put in or broken rock scraps exist at the sitting and hanging positions of the hanger, so that the installation is not in place. If the hanger is not installed in place, the hanger is in sealing failure, and the risk of wellhead installation failure is further caused.
Disclosure of Invention
The application provides a clamp type quick-mounting wellhead device and a mounting method thereof, which aim to solve the technical problem that in the prior art, a hanger is not mounted in place, so that the hanger is in sealing failure, and the wellhead mounting failure is caused.
In a first aspect, the present application provides a clamp-on quick-install wellhead assembly comprising:
The wellhead device comprises a wellhead device body, a plurality of sealing grooves and a plurality of sealing grooves, wherein the wellhead device body is provided with a mounting groove;
The casing hanger is arranged at the bottom of the mounting groove, a casing hanger main sealing element is arranged on the casing hanger, and the casing hanger main sealing element is connected with the corresponding sealing groove on the mounting groove;
The rotary sealing sleeve is arranged on the upper part of the casing hanger, a first sealing component is arranged on the rotary sealing sleeve, and the first sealing component is connected with the corresponding sealing groove on the mounting groove;
the oil pipe hanger is arranged on the upper portion of the rotary sealing sleeve, a rotary expansion assembly and a second sealing assembly are arranged on the oil pipe hanger, the rotary expansion assembly is arranged outside the rotary expansion assembly, and the second sealing assembly is connected with the corresponding sealing groove on the mounting groove.
Further, the first seal assembly comprises a seal sleeve main seal, a seal sleeve auxiliary seal and a rotary seal sleeve seal, wherein the seal sleeve main seal is positioned in the middle of the rotary seal sleeve, the seal sleeve auxiliary seal is positioned at the bottom of the rotary seal sleeve, and the rotary seal sleeve seal is positioned between the rotary seal sleeve and the wellhead device body.
Further, the second seal assembly includes a tubing hanger primary seal positioned in the middle of the tubing hanger and a tubing hanger secondary seal positioned on the top of the tubing hanger.
Further, the top of wellhead assembly body is equipped with flange, be equipped with the clamp connector outward to connect the flange with the wellhead assembly body passes through clamp connector interconnect, be equipped with a plurality of jackscrew assemblies on the clamp connector to compress tightly the clamp connector.
Further, a pipeline penetrating mechanism is further arranged on the connecting flange, and the output end of the pipeline penetrating mechanism is sequentially inserted into the connecting flange and the oil pipe hanger.
Further, the outside of wellhead assembly body is equipped with a plurality of wing formula structure, wing formula structure symmetry install in the outer wall both sides of wellhead assembly body, left side wing formula structure includes manual flat valve, screw thread flange and manometer assembly, and the three is from inside to outside connects gradually, right side wing formula structure includes manual flat valve and screw thread flange, and the two is from inside to outside connects gradually.
Further, the clamp type quick-assembly wellhead device further comprises a base, the wellhead device body is mounted on the base, a gap is formed between the bottom of the wellhead device body and the casing hanger, a surface casing is arranged in the gap, and the surface casing is detachably connected with the wellhead device body.
Further, an inner sleeve is arranged at the bottom of the sleeve hanger and detachably connected with the sleeve hanger.
Further, the oil pipe hanger is arranged in a hollow mode, an oil pipe is arranged in the oil pipe hanger, and the oil pipe is detachably connected with the oil pipe hanger.
In a second aspect, the present invention also provides a method of installing a collar type quick-install wellhead, the method comprising the steps of:
Installing a casing hanger on a casing hanger running tool in a threaded manner, and screwing the thread to press the casing hanger into a setting position at the bottom of the wellhead device body;
The method comprises the steps of installing a rotary seal sleeve thread on a rotary seal sleeve sending tool, and screwing the thread to press the rotary seal sleeve into a setting position in the middle of a wellhead device body;
And the rotary expansion assembly is arranged on the rotary compression running tool in a threaded manner, and after the oil pipe hanger is put into the wellhead device body, the rotary expansion assembly is screwed tightly to press the oil pipe hanger into the setting position at the top of the wellhead device body.
Compared with the prior art, the technical scheme provided by the application has the following advantages:
according to the technical scheme, a multi-layer mounting groove and a sealing groove are formed in a wellhead device body, a casing hanger (bottom), a rotary sealing sleeve (middle) and an oil pipe hanger (top) are sequentially integrated, and each layer of hanger/sealing sleeve is connected with the corresponding sealing groove through an independent sealing assembly to form multi-stage redundant sealing. The rotary sealing sleeve can axially rotate to adapt to the installation deviation of the wellhead device body and the casing hanger, and the oil pipe hanger integrates the rotary expansion assembly to realize radial expansion locking through rotary action and eliminate the assembly deviation. Compared with the prior art, the hanger disclosed by the application adopts an expansion sealing structure and an anti-debris design, so that the problems of sealing failure and installation failure caused by insufficient installation due to the fact that the hanger is inclined after installation or broken rock debris exists at a sitting and hanging position can be prevented, and the installation efficiency is greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a cross-sectional view of a collar type quick-install wellhead provided in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of a casing running tool and casing hanger in a method for installing a collar-type quick-connect wellhead assembly according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a mounting structure of a rotary seal cartridge feeding tool and a rotary seal cartridge in a method for mounting a clamp-type quick-assembly wellhead according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a mounting structure of a rotary compression feeding tool and a rotary expansion assembly in a method for mounting a clamp-type quick-assembly wellhead according to an embodiment of the present application;
fig. 5 is a schematic flow chart of a method for installing a collar type quick-assembly wellhead according to an embodiment of the present application.
Reference numerals illustrate:
1. the well head device comprises a well head device body, 11, a mounting groove, 111, a sealing groove, 112, a gap, 113, a surface sleeve, 114, an inner sleeve, 115, an oil pipe, 12 and a base;
2. 21, casing hanger main seal;
3. 31, a first sealing component, 311, a sealing sleeve main sealing element, 312, a sealing sleeve pair sealing element, 313 and a rotary sealing sleeve sealing element;
4. Tubing hanger, 41, second sealing component, 411, tubing hanger main sealing component, 412, tubing hanger auxiliary sealing component, 42, rotation expansion component;
5. 51, a crossing pipeline mechanism;
6. 61, jackscrew assembly;
7. A wing structure; 71, a manual flat valve, 72, a screw thread flange, 73, a pressure gauge assembly;
8. Casing hanger running tool, 9, rotary seal sleeve running tool, 10, rotary compression running tool.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures experiences a positional reversal or a change in attitude or a change in state of motion, then the indications of these directives will also correspondingly change, e.g., an element described as "under" or "under" another element or feature will then be oriented "over" or "over" the other element or feature. Thus, the example term "below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
The application provides a clamp type quick-mounting wellhead device and a mounting method thereof, which can solve the technical problems that the existing quick-mounting wellhead device is inclined after a hanger is put in or is not mounted in place due to broken rock fragments at the sitting and hanging positions of the hanger, and can prevent the problems of sealing failure and mounting failure caused by the inclined or sitting and hanging positions of the hanger, thereby greatly improving the mounting efficiency.
Referring to fig. 1, the clamp type quick-assembly wellhead device provided by the embodiment of the application comprises a wellhead device body 1, wherein the wellhead device body 1 is provided with a mounting groove 11, a plurality of sealing grooves 111 are formed in the groove wall of the mounting groove 11, a casing hanger 2 is arranged at the bottom of the mounting groove 11, a casing hanger main sealing element 21 is arranged on the casing hanger 2, the casing hanger main sealing element 21 is connected with a corresponding sealing groove 111 on the mounting groove 11, a rotary sealing sleeve 3 is arranged on the upper part of the casing hanger 2, a first sealing assembly 31 is arranged on the rotary sealing sleeve 3, the first sealing assembly 31 is connected with the corresponding sealing groove 111 on the mounting groove 11, a tubing hanger 4 is arranged on the upper part of the rotary sealing sleeve 3, a rotary expansion assembly 42 is arranged on the tubing hanger 4 and is connected with a second sealing assembly 41, the rotary expansion assembly 42 is arranged outside the rotary expansion assembly 42, and the second sealing assembly 41 is connected with the corresponding sealing groove 111 on the mounting groove 11.
Specifically, a stepped mounting groove 11 is formed in a wellhead device body 1, a plurality of annular sealing grooves 111 are preset in the groove wall and used for fixing all components in a layered mode, a sleeve hanger 2 is mounted in the mounting groove 11 at the bottom of the wellhead device body 1 and is in pressure connection with the corresponding sealing groove 111 through a main sealing piece to achieve sleeve fixing and primary sealing, a rotary sealing sleeve 3 is sleeved above the sleeve hanger 2 and can rotate around an axis, a first sealing component 31 of the rotary sealing sleeve is dynamically attached to the sealing groove 111 to compensate mounting deviation, an oil pipe hanger 4 is located above the rotary sealing sleeve 3 and radially expands and locks an oil pipe 115 through a rotary expansion component 42, and meanwhile a second sealing component 41 is connected with the sealing groove 111 to form end sealing. The application adopts layered independent sealing, wherein the main sealing element, the first sealing component 31 and the second sealing component 41 form a redundant barrier, the reliability under the high-pressure working condition is improved, and secondly, the rotary sealing sleeve 3 and the rotary expanding component 42 allow the angle deviation to be self-corrected, so that the dependence on the installation precision can be reduced, the condition that the installation is not in place due to the inclination after the hanger is put in or the broken rock debris exists at the sitting and hanging position of the hanger can be dynamically adjusted, the damaged sealing component can be independently replaced, the whole structure is not required to be disassembled, and the maintenance cost is reduced.
Further, the rotary expansion assembly 42 comprises an inner taper sleeve and an outer expansion block, wherein a spiral groove is formed in the inner wall of the inner taper sleeve, a conical surface is formed on the outer wall of the outer expansion block, the rotary expansion assembly 42 is pressed by rotation to drive the oil pipe hanger 4 to move along the axis, the outer expansion block is extruded by the conical surface to expand radially, the outer wall of the oil pipe 115 is held tightly, and meanwhile interference fit is formed between the outer wall of the oil pipe hanger and the inner wall of the wellhead device body 1. The inner taper sleeve thread adopts a zigzag single thread, and is reversely self-locked after rotating in place, so that loosening caused by operation vibration is prevented.
As shown in fig. 1, the first seal assembly 31 includes a seal cartridge main seal 311, a seal cartridge pair seal 312, and a rotary seal cartridge seal 313, the seal cartridge main seal 311 being located in the middle of the rotary seal cartridge 3, the seal cartridge pair seal 312 being located at the bottom of the rotary seal cartridge 3, the rotary seal cartridge seal 313 being located between the rotary seal cartridge 3 and the wellhead body 1.
Specifically, the seal sleeve main seal 311 is installed in the middle of the rotary seal sleeve 3 and forms a static main seal with the sealing surface of the installation groove 11, the seal sleeve pair seal 312 is located at the bottom of the rotary seal sleeve 3 and is designed into a bidirectional lip-shaped seal structure, self-adaptively expands under axial pressure to enhance the tightness of the bottom, and the rotary seal sleeve seal 313 is arranged between the outer wall of the rotary seal sleeve 3 and the inner wall of the wellhead body 1, and is made of a low friction coefficient material to allow the rotary seal sleeve 3 to maintain dynamic seal during rotation.
As shown in fig. 1, the second seal assembly 41 includes a tubing hanger main seal 411 and a tubing hanger sub seal 412, the tubing hanger main seal 411 being located in the middle of the tubing hanger 4 and the tubing hanger sub seal 412 being located at the top of the tubing hanger 4.
Specifically, the main sealing element 411 of the tubing hanger is installed in the middle of the tubing hanger 4, a multistage step sealing structure is adopted to form rigid contact with the sealing groove 111 of the wellhead device body 1 and serve as a core sealing barrier, and the auxiliary sealing element 412 of the tubing hanger is arranged at the top of the tubing hanger 4 and automatically compresses a sealing surface under the action of medium pressure to realize auxiliary sealing.
Further, the top and bottom of the tubing hanger 4 are respectively provided with standardized flange faces, and the edges are distributed with sealing elements adapted to the wellhead body 1, so as to adapt to the quick-assembly connection requirements.
It can be appreciated that the sealing members in this embodiment are all sealing rings, and the sealing rings are made of rubber, and in other embodiments, sealing rings made of plastic, metal, composite materials and the like may be adopted, which may be specifically selected according to practical situations.
As shown in fig. 1, the top of the wellhead body 1 is provided with a connecting flange 5, a clamp connector 6 is arranged outside the connecting flange 5, the connecting flange 5 and the wellhead body 1 are connected with each other through the clamp connector 6, and a plurality of jackscrew assemblies 61 are arranged on the clamp connector 6 to compress the clamp connector 6.
Specifically, the top of the wellhead device body 1 is processed into a flange surface with a flange, an annular groove is formed in the outer ring of the connecting flange 5, a clamp connector 6 adopts a split clamp structure (such as two semicircular clamps), protrusions matched with the flange grooves are arranged on the inner side of the clamp connector, two ends of the clamp connector are detachably connected with the wellhead device body 1 and the connecting flange 5 (including but not limited to a hinged connection mode, a threaded connection mode, a buckle connection mode and the like), quick opening and closing are achieved, a plurality of jackscrew assemblies 61 are distributed outside the clamp connector 6, the tail ends of the jackscrew assemblies 61 are conical pressure heads, and the pressure heads are abutted against the outer surfaces of the clamp connector during screwing in, so that the flange in the clamp connector is tightly meshed with the flange grooves. According to the application, the clamp type quick connector is adopted, so that the disassembly and assembly of the blowout preventer during drilling can be reduced, the drilling time is shortened, the operation efficiency is improved, and the stability of the device is improved.
Further, the jackscrew assembly 61 is a mechanical assembly for precisely positioning, fixing and sealing key components in the wellhead, and comprises a jackscrew body, a thrust bearing set, a sealing gland, an adjusting nut and other structures, which in the present embodiment ensure a stable fit between the clamp connector 6 and the connecting flange 5 and the wellhead body 1 by applying a controllable axial force.
As shown in fig. 1, the connecting flange 5 is further provided with a pipeline penetrating mechanism 51, and the output end of the pipeline penetrating mechanism 51 is sequentially inserted into the connecting flange 5 and the oil pipe hanger 4.
Specifically, a penetrating pipeline channel is prefabricated in the connecting flange 5, the axis of the channel is perpendicular to the flange mounting surface, the output end of the penetrating pipeline mechanism 51 is allowed to be directly inserted, the output end of the pipeline is designed into a stepped guide head, the front end of the pipeline is inserted into the inner cavity of the oil pipe hanger 4, and the rear end of the pipeline is embedded into the flange channel to form a continuous flow channel. The main pipeline adopts a plurality of sections of seamless steel pipes, and linearly penetrates through the wellhead device to serve as a core transmission channel of high-pressure media (such as fracturing fluid and natural gas).
As shown in fig. 1, the wellhead device body 1 is provided with a plurality of wing structures 7 on the outside, the wing structures 7 are symmetrically arranged on two sides of the outer wall of the wellhead device body 1, the left wing structure 7 comprises a manual flat valve 71, a screw thread flange 72 and a pressure gauge assembly 73, the three are sequentially connected from inside to outside, the right wing structure 7 comprises a manual flat valve 71 and a screw thread flange 72, and the two are sequentially connected from inside to outside.
Specifically, the left side wing structure 7 is sequentially provided with a manual flat valve 71 (clung to the outer wall of the wellhead body), a threaded flange 72 (connected with the outer end of the valve) and a pressure gauge assembly 73 (arranged on the outer side of the flange) from inside to outside, the three are directly connected through threads or hoops, the right side wing structure 7 is sequentially provided with the manual flat valve 71 and the threaded flange 72 from inside to outside, and the manual flat valve 71 and the threaded flange are directly connected in series without an additional monitoring module. The left wing type structure 7 integrates a pressure monitoring function, and the right wing type structure 7 only keeps basic on-off control, so that a function differentiation configuration is formed. In this way, the control, monitoring and expansion are integrated on the left side, the foundation fluid management is focused on the right side, the multi-scene requirement is adapted, and meanwhile, the double-side wing structure 7 can balance the external load of the wellhead device body 1, and stress concentration caused by unbalanced load is reduced.
As shown in fig. 1, the clamp type quick-assembling wellhead device further comprises a base 12, the wellhead device body 1 is installed on the base 12, a gap 112 is arranged between the bottom of the wellhead device body 1 and the casing hanger 2, a surface casing 113 is arranged in the gap 112, and the surface casing 113 is detachably connected with the wellhead device body 1.
Specifically, the bottom of the wellhead device body 1 is processed into an annular cavity with the inner diameter slightly larger than the outer diameter of the casing hanger 2, a gap 112 surrounding the casing hanger 2 is formed, the height of the gap 112 is adjusted according to the installation requirement, and the surface casing 113 is ensured to be inserted and is not rigidly contacted with the wellhead device body 1 and the casing hanger 2. The outer wall of the surface sleeve 113 and the inner wall of the bottom of the wellhead body 1 are provided with mutually matched threads, and the two are connected through threads so as to meet the requirement of detachable connection.
As shown in fig. 1, the bottom of the casing hanger 2 is provided with an inner casing 114, and the inner casing 114 is detachably connected to the casing hanger 2.
Specifically, the bottom of the casing hanger 2 is processed into an internal thread interface, and the top of the inner casing 114 is correspondingly provided with external threads, so as to realize detachable connection through screwing. The inner casing 114 is independently removable to facilitate replacement of worn or corroded portions, avoiding replacement of the casing hanger 2 as a whole.
As shown in fig. 1, the tubing hanger 4 is hollow, and is internally provided with a tubing 115, and the tubing 115 is detachably connected with the tubing hanger 4.
Specifically, the tubing hanger 4 adopts an axially through hollow structure, a channel matched with the outer diameter of the tubing 115 is formed in the tubing hanger, the tubing 115 is allowed to penetrate through the upper end and the lower end of the hanger, threads are arranged on the inner wall of the channel, and the outer wall of the tubing 115 is correspondingly provided with a connecting structure to realize detachable fixation.
It is understood that the detachable connection mode may be, besides threaded connection, snap connection, flange bolt connection, quick-release pin connection, etc., and each connection mode may be used in the embodiment of the present application, and is specifically selected according to the actual situation.
Referring to fig. 2 to 5, the present invention further provides a method for installing a collar type quick-assembly wellhead device, the method comprising the steps of:
s1, installing a casing hanger 2 on a casing hanger running tool 8 in a threaded manner, and screwing the threads to press the casing hanger 2 into a setting position at the bottom of a wellhead device body 1;
specifically, a casing hanger running tool 8 is adopted, an internal threaded interface matched with the casing hanger 2 is arranged at the front end of the casing hanger running tool, the casing hanger 2 is screwed into the front end of the running tool until threads are completely meshed, the tool is vertically inserted into the bottom of the wellhead device body 1, torque is applied through the rotating tool to push the casing hanger 2 to move to a setting position along the axial direction, and after the tool is confirmed to be in place, the tool is reversely rotated, the threaded connection is released, and the tool is withdrawn.
S2, installing the rotary sealing sleeve 3 on a rotary sealing sleeve feeding tool 9 in a threaded manner, and pressing the rotary sealing sleeve 3 into a setting position in the middle of the wellhead device body 1 by screwing the threads;
Specifically, a rotary seal sleeve sending tool 9 is used, an external threaded rod matched with the rotary seal sleeve 3 is arranged at the front end of the tool, a guide key is arranged on the surface of a rod body, the rotary seal sleeve 3 is screwed into the threaded rod at the front end of the sending tool, the tool is inserted into the middle part of a wellhead device body 1, the seal sleeve is driven to move downwards along the guide key through rotation until a limit ring contacts the upper end face of the body, and the tool is rotated until the seal sleeve is fully seated and reversely screwed out.
S3, the rotary expansion assembly 42 is arranged on the rotary compression running tool 10 in a threaded mode, and after the tubing hanger 4 is put into the wellhead device body 1, the rotary expansion assembly 42 is screwed tightly to press the tubing hanger 4 into a setting position of the top of the wellhead device body 1.
Specifically, the front end of the rotary compaction running tool 10 is a conical expansion head which is matched with the inner conical surface of the rotary expansion assembly 42, the rotary expansion assembly 42 is screwed into the front end of the running tool and preassembled on the outer wall of the oil pipe hanger 4, the oil pipe hanger 4 is integrally lowered to the top of the wellhead body 1, the expansion head is driven to axially move by the rotary tool, the expansion assembly is forced to radially expand, the oil pipe hanger 4 is locked, and after setting is confirmed, the quick-release pin shaft is released and the tool is withdrawn.
In conclusion, the application adopts rotary push-in type installation, simplifies the installation process, simultaneously, is convenient to install or repair under low axial load, reduces the overall height and has compact structure.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
While the application has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510472779.5A CN119981751B (en) | 2025-04-16 | 2025-04-16 | A clamp-type quick-install wellhead device and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510472779.5A CN119981751B (en) | 2025-04-16 | 2025-04-16 | A clamp-type quick-install wellhead device and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119981751A CN119981751A (en) | 2025-05-13 |
| CN119981751B true CN119981751B (en) | 2025-06-17 |
Family
ID=95645592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510472779.5A Active CN119981751B (en) | 2025-04-16 | 2025-04-16 | A clamp-type quick-install wellhead device and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119981751B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949440Y (en) * | 2006-09-22 | 2007-09-19 | 江苏金石油气井口科技有限公司 | Fast assembled wellhead device |
| CN112878945A (en) * | 2021-01-19 | 2021-06-01 | 江苏卫东机械有限公司 | Integral wellhead assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122216A (en) * | 2007-09-27 | 2008-02-13 | 毛帮来 | Automatically deviation-adjusting anti-corrosion wear resisting well mouth sealing device |
| US20150330169A1 (en) * | 2014-05-13 | 2015-11-19 | Ge Oil & Gas Pressure Control Lp | Enhanced Wellhead Clamp Type Hub Connection |
| CN206458392U (en) * | 2017-02-13 | 2017-09-01 | 苏州道森钻采设备股份有限公司 | A kind of safe and efficient wellhead assembly |
-
2025
- 2025-04-16 CN CN202510472779.5A patent/CN119981751B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200949440Y (en) * | 2006-09-22 | 2007-09-19 | 江苏金石油气井口科技有限公司 | Fast assembled wellhead device |
| CN112878945A (en) * | 2021-01-19 | 2021-06-01 | 江苏卫东机械有限公司 | Integral wellhead assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119981751A (en) | 2025-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10066446B2 (en) | Tapered spline connection for drill pipe, casing, and tubing | |
| CN103459764B (en) | BOP | |
| US4185856A (en) | Pipe joint with remotely operable latch | |
| CN102333933B (en) | Marine drilling riser connector with removable shear elements | |
| US4892337A (en) | Fatigue-resistant threaded connector | |
| US5951066A (en) | Connecting system for wellhead components | |
| US6578880B2 (en) | Wedgethread pipe connection | |
| US3965977A (en) | Control line exiting coupling | |
| MXPA06009052A (en) | Stripper rubber adapter. | |
| US4548428A (en) | Anti back-out steel coupling system for nonmetallic composite pipe | |
| US6764103B1 (en) | Method and apparatus for locking a tubular quick coupling | |
| CN119981751B (en) | A clamp-type quick-install wellhead device and installation method thereof | |
| US10240402B1 (en) | End fitting for sucker rods | |
| CN113530490B (en) | Suspension Packer | |
| US9850730B2 (en) | Ram blowout preventer piston rod subassembly | |
| US10443319B2 (en) | End fitting for sucker rods | |
| US10184303B2 (en) | Anti-rotation device for connector assembly and method | |
| US12066130B2 (en) | Threaded connection partially in a self-locking engagement with an external shoulder capable to resist elevated torque | |
| CN117905395B (en) | Multistage adjustable compensation expansion joint for test and use method thereof | |
| US9725966B2 (en) | Riser system | |
| CN120626078A (en) | Tubular column joint connection structure and top drive drilling device | |
| CN101238269A (en) | Rod lock for ram blowout preventer | |
| CN120042498A (en) | Low-shear ultra-deep well control system and shearing operation method thereof | |
| CN119981754A (en) | Energy-saving and environmentally friendly casing head | |
| RU2173764C2 (en) | Universal casing head for connections of casing strings on wellhead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |