An intelligent choke for natural gas wells

A choke, natural gas technology, applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc., can solve the problems of increasing operating costs, hidden dangers of operating accidents, affecting normal production, etc.

Active Publication Date: 2020-06-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this production process increases operating costs, affects normal production, and has hidden dangers of operating accidents

Method used

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  • An intelligent choke for natural gas wells
  • An intelligent choke for natural gas wells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 with figure 2 As shown, an intelligent choke device for a natural gas well includes a delivery head 1, a delivery pin 2, a fishing head 5, a lifting outer tube 11, a throttling control adjustment unit, a mechanical anchor setting unit, a setting pin 29 and a sealing ring 30, the feeding head 1 is connected to the upper part of the fishing head 5 through the feeding pin 2, the pulling outer tube 11 is covered with the lower part of the fishing head 5, and the throttling control adjustment unit is connected to the lower part of the feeding head 1 and is located between the fishing head 5 and the lifting head. Pull the inner side of the outer tube 11, and the mechanical anchor setting unit is sequentially connected to the lower part of the throttle control adjustment unit through the setting pin 29 and the sealing ring 30; the throttle control adjustment unit includes a wireless antenna 3, a radome 4, Wireless module and circuit board module 6, circuit b...

Embodiment 2

[0025] Such as figure 1 with figure 2As shown, on the basis of Example 1, the mechanical anchor setting unit includes a lifting retaining ring 31, a slip seat 32, a slip 33, a cone 34, a rubber tube 35, a spacer ring 36, an upper center Tube 37, rubber cartridge seat 38, central tube connector 39, locking cover 40, locking pawl 41, limit ring 42, lower central tube 43, piston 44, release lever 45, sealing body 46, sealing cover 47, setting seal The push rod 48 and the filter body 49, the cone 34 and the lifting retaining ring 31 are all connected to the lower end of the sealing ring 30, and the slip seat 32 and the slip 33 are connected to the outside of the cone 34 sequentially from top to bottom, The lower part of the setting pin 29 is sequentially connected with the upper central tube 37, the central tube connecting body 39 and the lower central tube 43 from top to bottom, and the upper central tube 37 is sleeved with the rubber tube 35, the spacer ring 36 and the rubber ...

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Abstract

The invention belongs to the technical field of tools for exploiting natural gas and particularly relates to an intelligent throttle device for a natural gas well. The intelligent throttle device comprises a putting head, a putting pin, a fishing head, a lifting outer pipe, a throttling control adjusting unit, a mechanical anchoring and setting unit, a setting pin and a sealing ring. The putting head is connected to the upper portion of the fishing head through the putting pin, and the lower portion of the fishing head is sleeved with the lifting outer pipe; the throttling control adjusting unit is connected to the lower portion of the putting head and located on the inner sides of the fishing head and the lifting outer pipe; and the mechanical anchoring and setting unit is connected to the lower portion of the throttling control adjusting unit sequentially through the setting pin and the sealing ring. The problems that existing throttle devices at home and abroad are all throttle devices with fixed air nozzle, when a gas well working system is changed, the throttle devices need to be taken out to replace air nozzles, accordingly, the operation cost is increased, normal productionis affected, and operation accident hidden danger exists are solved, when a working system of the intelligent throttle device is changed, working can be completed by adjusting the open degree of an air nozzle, and the process technology is simplified.

Description

technical field [0001] The invention belongs to the technical field of tools for exploiting natural gas, and in particular relates to an intelligent throttle for natural gas wells. Background technique [0002] In the process of natural gas extraction and production, it is necessary to install a gas nozzle in the wellhead device of the gas well to control the gas production of the gas well and achieve the purpose of stable production. At the same time, the downhole throttling process technology is to use the heat of the formation to heat the formation to prevent freezing and plugging after throttling the downhole gas nozzle, which can effectively prevent the formation of hydrates during the natural gas recovery process. But at present, the restrictors at home and abroad are all fixed gas nozzle restrictors. When changing the working system of the gas well, it is necessary to take out the restrictor to replace the gas nozzle. On the one hand, this production process increase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/12
CPCE21B43/12
Inventor 常彦荣冯朋鑫谷成义徐文龙王晓荣谈泊马海宾于淑珍曾萍茹志娟高仕举曹毅
Owner PETROCHINA CO LTD
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