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Fracturing tool

A tool and fracturing technology, applied in the direction of production fluid, measurement, wellbore/well components, etc., can solve problems such as difficult to achieve infinite multi-stage fracturing control

Pending Publication Date: 2021-09-17
SANY PETROLEUM INTELLIGENT EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the problem that the traditional fracturing sliding sleeve is difficult to realize infinite multi-stage fracturing control in fracturing construction

Method used

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention.

[0030] Moreover, the Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positiv...

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Abstract

The invention provides a fracturing tool, and belongs to the field of fracturing well completion. Fracturing sliding sleeves are put into a well along with a casing pipe during well cementation and well completion, and each fracturing sliding sleeve corresponds to a required fracturing layer section. An intelligent dart body presets parameters on the ground by using a computer program, and is put into the well through a wellhead and pumped during fracturing, the intelligent dart body generates an electromagnetic pulse every time the intelligent dart body passes through one fracturing sliding sleeve, the intelligent dart body counts the number of the electromagnetic pulses to complete counting of the fracturing sliding sleeves, the intelligent dart body is controlled to be hung in the corresponding fracturing sliding sleeve according to the preset parameters, and a channel of a fracturing hole is opened under the hydraulic action, at the moment, a sealing device achieves sealing of the fracturing sliding sleeve and the intelligent dart body, and fracturing fluid forcibly passes through the fracturing hole of the fracturing sliding sleeve to achieve fracturing construction of the corresponding layer section. The electromagnetic counting control mode can be infinitely great in numerical value, the size specifications of the fracturing sliding sleeves and the intelligent dart body are unified, and the advantages of production and manufacturing and fracturing construction such as large-scale batch production and infinite multi-layer section fracturing control are facilitated.

Description

technical field [0001] The invention relates to the technical field of well completion fracturing, in particular to a fracturing tool. Background technique [0002] As tight oil and gas, shale oil and gas, and coalbed methane cannot be obtained by conventional vertical wells and perforation, unconventional energy sources of industrial oil and gas are vigorously developed. There is a need for a well completion and production stimulation method that uses long horizontal sections and densely fractured fractures to cut reservoirs to stimulate well completion and fracturing. Although there are many ways of layered fracturing reconstruction at present, none of them can achieve unified large-scale batch production without differentiation, unified internal diameter design for all, and unlimited multi-stage fracturing control. [0003] These reasons lead to high manufacturing costs, improper casing installation sequence leads to poor fracturing adaptation, limited fracturing interva...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B34/10E21B47/00
CPCE21B43/26E21B34/10E21B47/00
Inventor 张胜海王安伟赵洪波
Owner SANY PETROLEUM INTELLIGENT EQUIP CO LTD
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