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Petroleum extraction well mouth return pressure control device

A control device, a technology for oil extraction, which is applied in earth-moving drilling, wellbore/well components, sealing/packing, etc., can solve problems such as increasing work difficulty, reducing practicability, etc. The effect of extrusion deformation

Active Publication Date: 2020-10-27
大庆市阳鑫石油机械设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an oil production wellhead back pressure control device to solve the problem that the existing oil production well head back pressure control device proposed in the above background technology is fixed in the position of the support rod when in use, and the ground flatness does not meet the support requirements after connection. When it needs to be filled manually, it increases the difficulty of the work and reduces the problem of practicability

Method used

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  • Petroleum extraction well mouth return pressure control device
  • Petroleum extraction well mouth return pressure control device
  • Petroleum extraction well mouth return pressure control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A wellhead back pressure control device for oil production, including a back pressure control device 1, the model of which is JKQ65-35, a circular groove 5 is processed under the back pressure control device 1, and the left and right sides of the inner wall of the circular groove 5 The brackets 6 are slidingly clamped, the circular groove 5 is in the shape of a ring, and the support mechanism 2 is installed on the front and outside of the two brackets 6. The support mechanism 2 includes a first inclined plate 201, a first threaded rod 202, and a first concave plate. 203, straight bar 204, the second slant plate 205, the second concave plate 206, the first spring 207 and the convex plate 208, the top of the first slant plate 201 is connected to the front left side of the support 6 by rotation, the first slant plate 201 is subjected to The force is rotated through the pin shaft on the left side of the front of the bracket 6, the inner wall of the first slant plate 201 is t...

Embodiment 2

[0037] As an option, see figure 1 , 4 , 5 and 6, oil production wellhead back pressure control device, the bottoms of the two second sloping plates 205 are fixedly connected with curved blocks 7 respectively, and the two curved blocks 7 are formed in a triangular shape, which is convenient for insertion into the ground, and the back pressure control device 1 The bottom of the thick tube 8 is connected with a thick tube 8, the outer wall of the thick tube 8 is plugged with a wellhead 9, the left and right sides of the wellhead 9 are processed with chute 10, the top of the wellhead 9 is tightly connected to the bottom of the back pressure control device 1, and the back pressure A control mechanism 3 is installed on the outside of the bottom of the control device 1. The control mechanism 3 includes a shell 301, a groove 302, a second threaded rod 303, a straight plate 304 and a handle 305. The top of the shell 301 is connected to the bottom outside of the back pressure control de...

Embodiment 3

[0040]As an option, see figure 1 , 4 , 5 and 6, oil production wellhead back pressure control device, the front of two straight plates 304 is equipped with a fixed mechanism 4, the fixed mechanism 4 includes a curved plate 401, a handle 402, a curved rod 403 and a second spring 404, two curved plates The tops of 401 are respectively connected to the front of the straight plate 304 for rotation, and the bent plate 401 is forced to rotate through the pin shaft on the front of the straight plate 304. The outer and lower sides of the two bent plates 401 are respectively fixed with the inner side of the handle 402, and the handle 402 is convenient for pulling the bent plate 401 rotates, the outer sides of the two curved plates 401 are fixedly connected to the inner sides of the curved rods 403 respectively, and the tops of the outer walls of the two curved rods 403 are respectively matched with the front outer sides of the straight plate 304, and the curved rods 403 are stressed up...

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Abstract

The invention discloses a petroleum extraction well mouth return pressure control device. The petroleum extraction well mouth return pressure control device comprises a return pressure control device.Round grooves are machined below the return pressure control device, and supporting mechanisms are mounted on the outer sides of the front faces of two supports. Each supporting mechanism comprises afirst inclined plate, a first threaded rod, a first concave plate, a straight rod, a second inclined plate, a second concave plate, a first spring and a convex plate. The tops of the first inclined plates are rotationally connected with the left sides of the front sides of the supports. Through the cooperation of the supporting mechanisms, the round grooves and the supports, the supports are controlled to rotate in the round grooves to change the positions of the supporting mechanisms, fixing and supporting of the supporting mechanisms are facilitated, the trouble of manual filling and leveling is saved, the working difficulty is reduced, the practicality is improved, long-time vibration extrusion deformation is avoided, damage is avoided, the service life is prolonged, mounting is convenient, the operation is easy, the working efficiency is improved, petroleum is prevented from entering a connector, the trouble of cleaning is saved, next connection use is guaranteed, and the petroleum extraction well mouth return pressure control device is convenient to popularize.

Description

technical field [0001] The invention relates to the technical field of oil production wellhead back pressure control devices, in particular to an oil production well head back pressure control device. Background technique [0002] Oil production wellhead back pressure control device consists of pipe head, blowout preventer group, etc., which function to control the pressure and direction of gas and liquid fluid, including Christmas tree and gas tree. [0003] The position of the support rod is fixed when the existing oil production wellhead back pressure control device is in use. When the ground flatness is not satisfactory after the connection, artificial filling is required, which increases the difficulty of the work and reduces the practicability, and the support rod has no buffer Protection, long-term vibration and extrusion, easy to deform, cause damage, shorten the service life, and the connection is fixed by flange thread connection, the installation of a circle of bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
CPCE21B33/03
Inventor 不公告发明人
Owner 大庆市阳鑫石油机械设备制造有限公司
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