Unlimited-layer electrically controlled fracturing sliding sleeve

A technology of fracturing sliding sleeves and electric control, which is applied in wellbore/well components, construction, production fluids, etc. It can solve the problems of complex devices, low operating efficiency, and limited number of fracturing stages, and achieves simple structure and convenient use , Improve the effect of fracturing and operating efficiency

Active Publication Date: 2012-06-27
四机赛瓦石油钻采设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, multi-stage fracturing (acidizing, acid fracturing) in oilfields generally adopts the method of mechanical ball throwing for staged fracturing. Therefore, the inner diameter of the sliding sleeve and the fracturing ball are different for each s

Method used

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  • Unlimited-layer electrically controlled fracturing sliding sleeve
  • Unlimited-layer electrically controlled fracturing sliding sleeve
  • Unlimited-layer electrically controlled fracturing sliding sleeve

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Such as figure 1 , 2 , 3, this embodiment provides an unlimited-layer electronically controlled fracturing sleeve, including an outer cylinder sleeve, an inner sleeve 4 and a signal ball 13, and the outer cylinder sleeve is composed of an upper joint 1, a middle joint 10, a lower The three parts of the joint 12 are sequentially socketed. The upper joint 10 is provided with a flow channel hole 8 for fracturing. The signal ball 13 is provided with a signal sending device for sending a specific IP address. The upper joint 10 There is a sealing chamber 6 between the inner sliding sleeve 4, and the chamber is pre-installed with hydraulic oil. The sealing chamber 6 is provided with a pressure relief hole 14, and the middle joint 10 is provided with a valve for controlling the opening of the pressure relief hole 14. The closed solenoid valve 5 and th...

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Abstract

The invention relates to a fracturing tool, and provides an unlimited-layer electrically controlled fracturing sliding sleeve for conventional and unconventional exploitation processes of oil, natural gas, coal bed gas, shale gas and the like. The fracturing sliding sleeve comprises an outer cylinder sleeve, an inner sliding sleeve and a signal ball, wherein the outer cylinder sleeve is formed by sequentially sleeving an upper joint, a middle joint and a lower joint; a fracturing runner hole is formed in the upper joint; a signal transmitting device for transmitting specific IP addresses is arranged in the signal ball; a sealed chamber is formed between the upper joint and the inner sliding sleeve, hydraulic oil is prefilled in the chamber, and the sealed chamber is provided with a pressure relief hole; an electromagnetic valve for controlling the opening and closing of the pressure relief hole and an electric control device of the electromagnetic valve are arranged on the middle joint; and a valve plate is arranged on the inner side of the upper joint through a torsion spring. The fracturing sliding sleeve is simple in structure and convenient to use, improves the fracturing effect and the operating efficiency, and solves the problem that the fracturing level is limited.

Description

technical field [0001] The invention relates to a fracturing tool, in particular to an unlimited-layer electronically controlled fracturing sliding sleeve used in conventional and unconventional oil, natural gas, coal bed gas, shale gas and other exploitation processes. Background technique [0002] At present, multi-stage fracturing (acidizing, acid fracturing) in oilfields generally adopts the method of mechanical ball throwing for staged fracturing. Therefore, the inner diameter of the sliding sleeve and the fracturing ball are different for each stage. From bottom to top, the diameter of the ball increases step by step. If the inner diameter of the upper tool is exceeded, not only the device is complicated, but the operating efficiency is low, and there is a disadvantage of limited fracturing stages. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an unlimited-layer el...

Claims

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Application Information

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IPC IPC(8): E21B43/27E21B34/14
CPCE21B2034/007E21B2034/005E21B43/26E21B34/14E21B2200/06E21B2200/05E21B34/066
Inventor 唐军赵俊峰郑例杜勇周欣
Owner 四机赛瓦石油钻采设备有限公司
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