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Pull-type full-diameter fracturing tool and control method

A full-bore, tool-based technology, applied in the direction of earthwork drilling, production fluid, wellbore/well components, etc., to ensure fast opening and closing, improve success rate, and improve reliability

Active Publication Date: 2017-09-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, a new fracturing tool is needed to solve the shortcomings of traditional fracturing technology, and avoid affecting the production efficiency due to the small diameter of the sliding sleeve

Method used

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  • Pull-type full-diameter fracturing tool and control method
  • Pull-type full-diameter fracturing tool and control method
  • Pull-type full-diameter fracturing tool and control method

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Embodiment Construction

[0020] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.

[0021] Refer to attached Figure 1-3 , a pull-type full-bore fracturing tool, including a fracturing tool body and an electric switch tool, the electric switch tool is located inside the fracturing tool body, and the fracturing tool body includes upper joints 2 sequentially connected from top to bottom , an outer jacket 7, a lower joint 10, the inner wall of the fracturing tool body is provided with a sliding sleeve 6 and a rotating sleeve 9 temporarily connected together by a shear pin 8, the inner wall of the upper end of the upper joint is connected with a positioning nipple 1, the sliding sleeve The upper end of the sleeve is provided with an anti-shock sleeve 3, and a T-shaped packing 5 and a T-shaped packing fi...

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Abstract

The invention discloses a sleeve-type full-diameter fracturing tool and a control method, wherein the tool includes a fracturing tool body and an electric switch tool, and the fracturing tool body includes an upper joint, a casing, and a lower joint sequentially connected from top to bottom The inner wall of the fracturing tool body is provided with a sliding sleeve and a rotating sleeve that are temporarily connected together by shearing pins, the inner wall of the upper end of the upper joint is connected with a positioning nipple, the upper end of the sliding sleeve is provided with an anti-shock sleeve, the sliding sleeve A T-shaped packing and a T-shaped packing fixing ring are arranged between the sleeve and the upper joint, and the electric switch tool is a device capable of driving the rotating sleeve and the sliding sleeve to move axially. The electric switch tool includes a positioning device and a rotary opening device, and the positioning device includes an axial positioning device, a radial positioning device, and a rotating positioning device. The invention ensures the rapid opening and closing of the fracturing tools and the repeatability of the fracturing tools, and at the same time ensures that the diameters of all the fracturing tools are consistent and improves the success rate of opening and closing.

Description

technical field [0001] The invention relates to a multi-stage and segmented fracturing technology, in particular to a sleeve-type full-diameter fracturing tool and a control method. Background technique [0002] Multi-stage staged fracturing technology is a commonly used staged fracturing technology at present. Generally, mechanical balls are used for staged fracturing. The inner diameter of the sliding sleeve and the fracturing ball of each stage are different. From bottom to top, the ball The diameter gradually increases, and the maximum cannot exceed the inner diameter of the upper tool, which not only complicates the device, but also reduces the operating efficiency, and there is a problem that the number of fracturing stages is limited. After the fracturing is completed, the ball seat must be ground off with the drilling tool to ensure the necessary diameter. At present, a new fracturing tool is needed to solve the deficiencies of traditional fracturing technology and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/26
Inventor 姜广彬李敢于学信任家敏李玉宝吕芳蕾曹雪梅高恒超魏剑飞田浩然
Owner CHINA PETROLEUM & CHEM CORP
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