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CN-122013853-A - Platform wellhead bracket device, platform well and construction method

CN122013853ACN 122013853 ACN122013853 ACN 122013853ACN-122013853-A

Abstract

The invention relates to the technical field of platform wellhead, in particular to a platform wellhead bracket device. The cross rod comprises a cross rod group and an annular square frame, wherein the cross rod group comprises four supporting rods which are circumferentially arranged, the roots of the four supporting rods are connected with each other, the outer ends of the supporting rods are connected with connecting parts, the annular square frame is provided with an installing seat at the bottom, an inner groove with one side being open is formed between the installing seat and the bottom surface of the annular square frame, the connecting parts can horizontally enter the inner groove from the open side, a plug pin is connected between the connecting parts and the installing seat, the plug pin is vertically arranged, and the plug pin is located at the inner side of the annular square frame. According to the platform wellhead bracket device, the cross rod group is installed in the inner groove from the side face through rotation. The cross rod group is vertically limited through the mounting seat and the bottom of the annular square frame, and is limited in the horizontal direction by the bolt, so that a worker can conveniently take down the cross rod group, and further, the constructor can conveniently go into the well for maintenance.

Inventors

  • ZHANG QINGSONG
  • DENG JIANBO
  • LI SHILONG
  • Kui Cailin
  • CHENG JIANGBO
  • XU YONG
  • LI JIZHOU
  • QIU HAO
  • TIAN LONG
  • ZHUO ZHENGPING
  • HU JIAN

Assignees

  • 中铁二局集团电务工程有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. The utility model provides a platform wellhead support device, its characterized in that includes cross pole group (1) and annular square frame (2), cross pole group (1) are including four bracing pieces (11) of circumference arrangement, four bracing piece (11) root interconnect, the outside end of bracing piece (11) is connected with connecting portion (12), annular square frame (2), the bottom of annular square frame (2) be provided with mount pad (3), mount pad (3) with form between annular square frame (2) bottom surface and have one side open-ended inside groove (4), connecting portion (12) can follow opening side level entering inside groove (4), connecting portion (12) with be connected with bolt (5) between mount pad (3), bolt (5) vertical setting, bolt (5) are located the inboard of annular square frame (2).
  2. 2. A platform wellhead support device according to claim 1, characterised in that two opposite support rods (11) of the four support rods (11) form a first rod (14), the other two support rods (11) are connected to form a second rod (13), the middle part of the first rod (14) is horizontally and rotatably connected with the middle part of the second rod (13) through a hinge shaft (15), and the top surface of the first rod (14) is flush with the top surface of the second rod (13).
  3. 3. A platform wellhead support device according to claim 2, characterised in that the first rod (14) is provided with a through hole in the middle and the second rod (13) extends through the through hole.
  4. 4. A platform wellhead support device according to claim 1, characterised in that the mounting base (3) comprises an L-shaped plate comprising a riser (32) and a cross plate (33) connected, the top of the riser (32) being connected to the bottom surface of the annular square frame (2), the L-shaped plate and the bottom surface of the annular square frame (2) enclosing the inner groove (4) open on one side.
  5. 5. A platform wellhead support device according to claim 4, characterised in that the cross plate (33) is provided with a first hole (31) and the connection portion (12) comprises a second hole (16), the first hole (31) and the second hole (16) being coaxially arranged, the plug (5) passing through the first hole (31) and the second hole (16).
  6. 6. A platform wellhead support device according to any of claims 1-5, characterised in that support pads (21) are provided at the corners of the square frame (2), the bottom of the support pads (21) being flush with the bottom of the mounting base (3).
  7. 7. The platform wellhead bracket device according to claim 6, characterized in that the top surface of the annular square frame (2) is provided with a threaded rod (22) in a downward protruding mode, the top of the supporting pad (21) is provided with a threaded slot hole (23), and the threaded rod (22) is in threaded fit with the threaded slot hole (23).
  8. 8. A docking station wellhead support device according to claim 7, characterised in that the mounting base (3) projects 20-40 mm inside the annular square frame (2).
  9. 9. A platform well, characterized by comprising a well chamber (6), the wellhead position of the well chamber (6) being provided with a platform wellhead support device according to any of claims 1-8, which platform wellhead support device is covered with a cover plate (7).
  10. 10. A construction method for a platform wellhead support device according to any one of claims 1 to 8, comprising the steps of: s1, lowering the cross rod group (1) and enabling the cross rod group to correspond to the inner groove (4) in height; s2, rotating the cross rod group (1) towards the direction of the inner groove (4) so that the connecting part (12) enters the inner groove (4), and vertically limiting and matching the annular square frame (2) with the connecting part (12); S3, a bolt (5) is connected between the connecting part (12) and the mounting seat (3).

Description

Platform wellhead bracket device, platform well and construction method Technical Field The invention relates to the technical field of platform wellhead, in particular to a platform wellhead bracket device, a platform well and a construction method. Background As shown in fig. 1, the wellhead protection of the existing fire hydrant station is a cross fixed type support, then the wellhead is hidden by the upper cover stone of the support, but the problem that people cannot get down is solved for the cross fixed type support with a smaller wellhead size. The cross and the outer frame are required to be detached, then constructors go into the well for maintenance, and then the cross and the outer frame are installed, so that the method is very inconvenient. Disclosure of Invention The invention aims to overcome the defects of the prior art that when constructors go down the well to repair, the cross and the outer frame are required to be detached and then are installed, and the construction is inconvenient. The invention provides a platform wellhead support device which comprises a cross rod group and an annular square frame, wherein the cross rod group comprises four support rods which are circumferentially arranged, the roots of the four support rods are connected with each other, the outer side ends of the support rods are connected with connecting parts, the annular square frame is provided with an installing seat at the bottom, an inner groove with an opening at one side is formed between the installing seat and the bottom surface of the annular square frame, the connecting parts can horizontally enter the inner groove from the opening side, a plug pin is connected between the connecting parts and the installing seat, the plug pin is vertically arranged, and the plug pin is positioned at the inner side of the annular square frame. The platform wellhead bracket device is designed into a mounting seat and a cross rod group on the basis of a cross fixed bracket in the prior art, an inner groove with one open side is arranged between the mounting seat and the bottom surface of the annular square frame, one side surface of the inner groove is open, and the cross rod group is mounted into the inner groove from the side surface through rotation. Simultaneously, a bolt is connected between the connecting part and the mounting seat, the bolt is vertically arranged, the bolt is utilized to limit the cross rod group along the horizontal direction, and the bolt is positioned at the inner side of the annular square frame, so that personnel can conveniently install and take down the bolt, further, personnel can conveniently take down the cross rod group, and further, constructors can conveniently go into the well for maintenance. Preferably, two opposite support rods of the four support rods form a first rod, the other two support rods are connected to form a second rod, the middle part of the first rod is horizontally and rotatably connected with the middle part of the second rod through a hinge shaft, and the top surface of the first rod is flush with the top surface of the second rod. Through above-mentioned setting, can change in a certain limit [ for example 0-30 ] horizontal contained angle between first pole and the second pole for cross pole group structure is more nimble, more convenient dismantles. Preferably, a through hole is horizontally formed in the middle of the first rod, and the second rod penetrates through the through hole. Preferably, the mounting seat comprises an L-shaped plate, the L-shaped plate comprises a vertical plate and a transverse plate which are connected, the top of the vertical plate is connected with the bottom surface of the annular square frame, and the L-shaped plate and the bottom surface of the annular square frame enclose an inner groove with an opening at one side. Preferably, a first hole is formed in the transverse plate, the connecting portion comprises a second hole, the first hole and the second hole can be coaxially arranged, and the bolt penetrates through the first hole and the second hole. Preferably, the annular square frame is formed by connecting four angle steels end to end in sequence. Preferably, the corner of the annular square frame is provided with a supporting pad, and the bottom of the supporting pad is flush with the bottom of the mounting seat. Preferably, the top surface of the annular square frame is provided with a threaded rod in a protruding mode, the top of the supporting pad is provided with a threaded slot, and the threaded rod is in threaded fit with the threaded slot. Preferably, the mounting seat protrudes from the inner side of the annular square frame by 20mm-40mm. In a second aspect, the invention further provides a platform well, which comprises a well cavity, wherein the wellhead position of the well cavity is provided with the platform wellhead support device provided by the invention, and the platform wellhead support device is covered