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Multi-stage draggable water-jet packer tubular column and technology

A technology of hydraulic jet and hydraulic spray gun, applied in the directions of sealing/packing, wellbore/well components, production fluid, etc., can solve the problems of easy failure of the packer, and achieve simple structure, convenient operation, protection and service life. Effect

Active Publication Date: 2012-07-04
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-stage draggable hydraulic jet packer string and process to overcome the problem that the packer in the prior art is prone to failure due to repeated setting for a long time in a high temperature and high pressure environment

Method used

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  • Multi-stage draggable water-jet packer tubular column and technology
  • Multi-stage draggable water-jet packer tubular column and technology
  • Multi-stage draggable water-jet packer tubular column and technology

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Embodiment Construction

[0013] In order to overcome the problem in the prior art that the packer is prone to failure after being repeatedly set in a high-temperature and high-pressure environment for a long time, this embodiment provides a multi-stage draggable hydraulic jet packer string, including a hydraulic spray gun and a packer The packer is connected to the lower end of the hydraulic spray gun. The specific connection method is that the lower end of the hydraulic spray gun is threadedly connected with the upper end of the center pipe of the packer and the upper end of the rubber cylinder seat, so as to realize the effective integration of the hydraulic spray gun and the packer with two different performance tools. During the construction process, through The method of throwing the ball and slipping the sleeve opens the injection channel of the hydraulic spray gun and the liquid inlet channel of the packer setting at the same time.

[0014] Next, we will describe in detail the structure of a mu...

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Abstract

The invention belongs to the technical field of transforming an oil-gas field reservoir, aims to overcome the problem that the packer in the prior art easily fails due to a long-term repeated setting under a high-temperature high-pressure environment, and provides a multi-stage draggable water-jet packer tubular column and a technology. The multi-stage draggable water-jet packer tubular column comprises a water-jet gun and the packer, wherein the packer is connected to the lower end of the water-jet gun. The water-jet packer has a simple structure, a jet channel of the water-jet gun and a setting liquid inlet channel of the packer are simultaneously opened during the application of continuous operation of water-jet perforating and fracturing in a manner of throwing a ball to impact a sliding sleeve, the operation is convenient, the packer can be effectively protected, the service life of the packer can be effectively prolonged, and the working life of a nozzle of the water-jet gun can be prolonged to a maximum extent.

Description

technical field [0001] The invention belongs to the field of reservoir transformation in oil and gas fields, and relates to one of the important downhole operation tools in oil and gas field multi-layer layered fracturing and acidizing construction operations, in particular to a multi-layer layered drag tube applied to horizontal wells The utility model relates to a tool for column fracturing and acidizing construction, specifically a multi-stage draggable hydraulic jet packing string and technology. Background technique [0002] The hydraulic spray gun is a commonly used tool in oil field fracturing and perforation continuous operation. It can be used in conjunction with packers to realize multi-layered perforation fracturing in oil and gas wells. However, the number of fracturing layers in one perforation of vertical wells and horizontal wells is increasing, and the packer is prone to failure after repeated setting in a high-temperature and high-pressure environment for a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B43/114E21B33/10E21B33/127E21B33/126
Inventor 曹欣陈平苏敏文韩虎成邓小强王建树张宏波张文张波高银锁闫育东齐加德
Owner BC P INC CHINA NAT PETROLEUM CORP
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