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Separate layer fracturing tool and construction process thereof

A layer-fracture and tool technology, applied in the fields of production fluids, wellbore/well components, earth-moving drilling, etc., can solve the problems of difficult perforation refinement, poor tool wear resistance, difficult positioning and other problems, and achieve easy cleaning. , The effect of uniform force and accurate positioning

Pending Publication Date: 2018-09-28
JEREH ENERGY SERVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The fracturing tool matched with the packer layered fracturing technology is composed of multiple parts. When used, the tool length is too long, the cost is high and the maintenance cost is also too high. Problems, such as difficult to accurately locate, difficult to refine perforation, poor overall wear resistance of tools, etc.

Method used

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  • Separate layer fracturing tool and construction process thereof
  • Separate layer fracturing tool and construction process thereof
  • Separate layer fracturing tool and construction process thereof

Examples

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Embodiment Construction

[0044] Such as Figures 1 to 9 As shown, a layered fracturing tool includes a hand-off joint 1, a righting spray gun 2, a circulation valve 3, a bottom packer 4, and a collar positioner 5. Both ends of the righting spray gun 2 are respectively connected to the hand-off joint 1, The circulation valve 3 and the two ends of the bottom packer 4 are respectively connected with the other end of the circulation valve 3 and the collar positioner 5 .

[0045] The drop-hand joint 1 is composed of the drop-hand upper joint 1-7, the shear pin 1-2, the salvage fish neck 1-3, the ball 1-4, the connection joint 1-5 and the drop-hand joint 1-6, and the connection joint 1- 5. One end is connected with the upper joint 1-7 of the hand, the other end of the joint 1-5 is connected with the joint 1-6 of the lower hand through the shear pin 1-2, and the fish neck 1-3 is set on the lower joint 1-6 of the hand. , the ball 1-4 is placed in the inner cavity of the discarding joint 1 and can be in conta...

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PUM

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Abstract

The invention discloses a separate layer fracturing tool. The separate layer fracturing tool comprises a release sub, a centering spray gun, a circulation valve, a bottom packer and a coupling locator, wherein the release sub and the circulation valve are separately connected to two ends of the centering spray gun, a circulation valve, and both ends of the bottom packer are separately connected tothe other end of the circulation valve and the coupling locator. The invention further discloses a construction process of the separate layer fracturing tool. The separate layer fracturing tool is short in overall length, accurate in positioning, fine in perforating, easy to clean, good in wear resistance and good in sand discharge effect.

Description

technical field [0001] The invention relates to the field of oil and gas downhole machinery, in particular to a layered fracturing tool and a construction process thereof. Background technique [0002] Since many oil and gas reservoirs in my country have multiple production layers in the horizontal direction, and most of them are thin production layers, to obtain considerable oil and gas production, certain transformation measures must be implemented. Usually, fracturing and acidizing are important transformation measures to achieve oil and gas well stimulation. . [0003] The current fracturing technologies include layered fracturing, repeated fracturing, horizontal well fracturing, etc. Among the layered fracturing technologies for vertical wells, the packer layered fracturing technology is also widely used at home and abroad. [0004] The fracturing tool matched with the packer layered fracturing technology is composed of multiple parts. When used, the tool length is too ...

Claims

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Application Information

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IPC IPC(8): E21B43/26E21B43/14E21B43/267E21B43/27E21B33/12
CPCE21B33/12E21B43/14E21B43/26E21B43/267
Inventor 邱俊人韩滔于智慧迟帅
Owner JEREH ENERGY SERVICES
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