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Multi-seat type fast-assembly wellhead device

A technology of wellhead devices and valves, which is applied in wellbore/well valve devices, wellbore/well parts, earthwork drilling and production, etc., which can solve the problems that valves cannot be replaced quickly, so as to save the time and process of replacing valves, save physical effect

Active Publication Date: 2021-05-28
JIANGSU SUYAN VALVE MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The invention with the publication number of CN104879082A discloses a multi-seat quick-installation wellhead device, which includes a tubing body and a base. The base is provided with a surface casing head. The pipe is fixed by a slip-type casing hanger and sealed by a P-type sealing ring; the first mandrel-type casing hanger is located on the inner wall shoulder of the surface casing head, and the tubing spool is installed on the surface casing head, and The annulus is sealed by the gasket ring, and the tubing spool is provided with a sealing sleeve, and the second mandrel casing hanger is fixed through the sealing sleeve, and the second mandrel casing hanger is located on the conical surface of the lower part of the sealing sleeve , the mandrel-type tubing hanger is connected to the tubing body, and is located on the upper part of the sealing sleeve, and is fixed by the limit screw; but this invention cannot quickly replace the valve on the Christmas tree or gas tree

Method used

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  • Multi-seat type fast-assembly wellhead device
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  • Multi-seat type fast-assembly wellhead device

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specific Embodiment approach 1

[0024] The following describes this embodiment in conjunction with the drawings. The present invention relates to the technical field of wellhead devices, more specifically, a multi-seat quick-installation wellhead device, including a valve conversion clamping mechanism 1, and the valve conversion clamping mechanism 1 includes a clamping beam 1-16, clamping screw rod 1-17, arc clamping arm 1-18 and clamping motor 1-19, multiple clamping screw rods 1-17 are respectively rotatably connected to multiple clamping beams 1-16 , each clamping screw rod 1-17 is threadedly connected with two arc-shaped clamping arms 1-18, and multiple clamping motors 1-19 are respectively fixedly connected to multiple clamping beams 1-16. Each clamping screw rod 1-17 is respectively fixedly connected to the output shafts of multiple clamping motors 1-19.

[0025] The clamping screw rod 1-17 fixed on the output shaft is driven by the clamping motor 1-19 to rotate. When the clamping screw rod 1-17 rotate...

specific Embodiment approach 2

[0027] The present embodiment will be described below in conjunction with the drawings. This embodiment will further explain Embodiment 1. Each of the clamping beams 1-16 is provided with a slideway, which is used to cooperate with two arc-shaped clamping arms 1-18. Sliding contact on the clamping crossbeam 1-16; limit the movement track of the two arc clamping arms 1-18, keep the two arc clamping arms 1-18 to move horizontally, and ensure to drive the valve to move horizontally.

specific Embodiment approach 3

[0029] The present embodiment will be described below in conjunction with the drawings. This embodiment will further illustrate the second embodiment. The valve switching clamping mechanism 1 also includes a base 1-1, a rotating shaft 1-2, a ring rack 1-3, and a rotating motor. 1-4, rotating gear 1-5, bifurcated flat plate 1-6, sliding plate 1-15 and T-shaped chute 1-20, a plurality of T-shaped chutes 1-20 are arranged on bifurcated flat plate 1-6, A plurality of sliding plates 1-15 are respectively slidably connected in a plurality of T-shaped chute 1-20, and a plurality of clamping beams 1-16 are respectively fixedly connected to the outer ends of a plurality of sliding plates 1-15, and the bifurcated flat plate 1- 6 is fixedly connected to the top of the rotating shaft 1-2, the bottom of the rotating shaft 1-2 is connected to the base 1-1 in rotation, the ring rack 1-3 is fixedly connected to the rotating shaft 1-2, and the rotating gear 1-5 Fixedly connected on the output ...

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Abstract

The invention relates to the technical field of wellhead devices, in particular to a multi-seat type fast-assembly wellhead device. A valve on a Christmas tree or a gas production tree can be quickly replaced. The device comprises a valve switching clamping mechanism, a rotating motor drives a rotating gear to rotate, the rotating gear drives an annular rack to drive a rotating shaft to rotate on a base, rotation of a forked flat plate is achieved, and the forked flat plate drives a plurality of clamping cross beams to conduct circular motion with the rotating shaft as the circle center. Different valves can reach the Christmas tree or the gas production tree, and meanwhile two arc-shaped clamping arms can be used for clamping the detached valves and driving the detached valves to leave the Christmas tree or the gas production tree in the rotating process. A worker does not need to stoop to place the detached valves on the ground or lift up new valves to place on the Christmas tree or the gas production tree, so that the physical strength of the worker is saved, and the time and process for replacing the valves are saved.

Description

technical field [0001] The invention relates to the technical field of wellhead devices, in particular to a multi-seat quick-installation wellhead device. Background technique [0002] The invention with the publication number of CN104879082A discloses a multi-seat quick-installation wellhead device, which includes a tubing body and a base. The base is provided with a surface casing head. The pipe is fixed by a slip-type casing hanger and sealed by a P-type sealing ring; the first mandrel-type casing hanger is located on the inner wall shoulder of the surface casing head, and the tubing spool is installed on the surface casing head, and The annulus is sealed by the gasket ring, and the tubing spool is provided with a sealing sleeve, and the second mandrel casing hanger is fixed through the sealing sleeve, and the second mandrel casing hanger is located on the conical surface of the lower part of the sealing sleeve , the mandrel-type tubing hanger is connected to the tubing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B23/00E21B34/02
CPCE21B23/00E21B34/02
Inventor 韩欣霖韩正东韩雪萍鲁磊方超艾静静吴海舒赵昌龙潘少尉周成
Owner JIANGSU SUYAN VALVE MASCH CO LTD
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