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Fracturing gas production wellhead device

A wellhead device and fracturing technology, which is applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., can solve the problems of high potential risk and easy leakage, etc., and achieve convenient operation, simplified operation steps and high safety. high effect

Pending Publication Date: 2019-03-08
CNPC BOHAI EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of existing fracturing gas production wellheads, where the top wire directly bears fracturing pressure during fracturing operations, which is prone to leakage and high potential risks

Method used

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  • Fracturing gas production wellhead device
  • Fracturing gas production wellhead device

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Embodiment Construction

[0010] Such as figure 1 , figure 2 As shown, a fracturing gas production wellhead device includes a tubing head assembly 1; it also includes a fracturing device and a gas production device, and the fracturing device includes a main valve I2 that can be connected to the upper end of the tubing head The main valve II3 at the upper end of the valve I2 is connected to the fracturing tree 4 at the upper end of the main valve II3;

[0011] The fracturing device is installed on the tubing head assembly 1 under fracturing conditions, and the fracturing device is not connected to the suspension flange and jack wire, which greatly improves the sealing reliability of the fracturing channel, completely eliminates the hidden danger of jack wire leakage, and improves the Operating efficiency and service life of jackscrew seals.

[0012] The gas production device includes a main valve I2 that can be connected to the upper end of the tubing head assembly 1, a suspension flange 5 that is co...

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Abstract

The invention relates to the technical field of shale gas fracturing gas production wells, in particular to a fracturing gas production wellhead device. The fracturing gas production wellhead device comprises an oil pipe head assembly, a fracturing device and a gas production device, wherein the fracturing device comprises a main valve I which can be connected to the upper end of the oil pipe headassembly, a main valve II which is connected to the upper end of the main valve I, and a fracturing tree which is connected to the upper end of the main valve II. According to the fracturing gas production wellhead device, a hanging device and a jackscrew are not installed under the fracturing working condition, the hidden danger of leakage at the jackscrew position is completely eliminated, an abrasion-resistant bush is not required to be lowered in the fracturing process, the operation steps are simplified, a hanger is above the main valve under the gas production working condition, a hanging flange and a jackscrew assembly can be replaced after shut in, the operation is convenient and the safety is high.

Description

Technical field: [0001] The invention relates to the technical field of shale gas fracturing gas production wells, in particular to a fracturing gas production wellhead device. Background technique: [0002] In the existing shale gas fracturing gas production wellhead, the top wire directly bears the fracturing pressure during the fracturing operation, which is prone to leakage and has a high potential risk. Invention content: [0003] The technical problem to be solved by the present invention is to provide a wellhead device for fracturing and gas production, which realizes that under fracturing conditions, no suspension device and jack wire are installed, and the hidden danger of leakage at the top wire is completely eliminated. There is no need to lower the anti-wear bushing, which simplifies the operation steps. Under the gas production condition, the hanger is above the main valve, and the well can be shut down to replace the hanging flange and jacking wire assembly, ...

Claims

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Application Information

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IPC IPC(8): E21B33/03E21B43/26
CPCE21B33/03E21B43/26
Inventor 刘福东国聪杜志勇马锐姜超刘文科王东升李雪野
Owner CNPC BOHAI EQUIP MFG
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