Horizontal well fracturing device, horizontal well fracturing system and operation method of horizontal well fracturing system

An operation method and horizontal well technology, which is applied in the direction of wellbore/well components, earthwork drilling, production fluid, etc. It can solve the problem of formation sand entering the annulus, complex operation of horizontal well fracturing devices, and inability to effectively control horizontal wells. Problems such as the injection direction of the fracturing device, to improve the effect and avoid the non-directional effect

Inactive Publication Date: 2018-01-26
PETROCHINA CO LTD
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a horizontal well fracturing device, a horizontal well fracturing system and its operation method, to solve the problem that the horizontal well fracturing system in the prior art cannot effectively control the horizontal well pressure during the perforation operation. The injection direction of the fracturing device may easily cause formation sand to enter the annulus and complicate the operation of the horizontal well fracturing device

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  • Horizontal well fracturing device, horizontal well fracturing system and operation method of horizontal well fracturing system

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[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037]It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0038] In the present invention, in the absence of a contrary statement, the used orientation words such as "up and down" usually refer to the direction shown in the drawings, or refer to the vertical, vertical or gravity direction Similarly, for ease of understanding and description, "inside and outside" refer to inside and outside relative to the outl...

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Abstract

The invention provides a horizontal well fracturing device, a horizontal well fracturing system and an operation method of the horizontal well fracturing system. The operation method of the horizontalwell fracturing system comprises the steps that S50, liquid is injected into an oil pipe to increase the pressure in the oil pipe, and in the process that the liquid is injected into the oil pipe, when the pressure in the oil pipe rises to the locking pressure, a multistage and multi-cluster spray gun assembly of the horizontal well fracturing device is switched from the rotation state to the locked state in the axial direction of the multistage and multi-cluster gun assembly. The problems that in the prior art, during perforation operation of a horizontal well fracturing system, the sprayingdirection of a horizontal well fracturing device cannot be effectively controlled, thus sand out of a stratum enters an annulus, and operation of the horizontal well fracturing device is complex aresolved.

Description

technical field [0001] The invention relates to the technical field of oilfield development, in particular to a horizontal well fracturing device, a horizontal well fracturing system and an operating method thereof. Background technique [0002] In the process of oil field development, perforation and fracturing are usually used for different sections of the oil well to form hydraulic fractures in the formation to increase the production of oil or natural gas. [0003] The operator can realize the integrated operation of perforating, fracturing and isolation without moving the string through the operation of the horizontal well fracturing system, so as to successfully complete the perforating and fracturing of the horizontal well and achieve the purpose of segmental reconstruction of the horizontal well. [0004] During the working process of the existing horizontal well fracturing system, since the injection direction of the horizontal well fracturing device cannot be adjus...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B43/114
Inventor 刘亚明刘海龙李新裴晶晶许轲张鹏
Owner PETROCHINA CO LTD
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