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Triplex hydrofracturing stress measurement push-pull valve

A technology of hydraulic fracturing and stress measurement, which is applied in the direction of production fluid, wellbore/well valve device, wellbore/well parts, etc., to achieve the effect of convenient assembly and maintenance, and avoid the narrow and long internal space

Active Publication Date: 2017-12-08
INST OF GEOMECHANICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide a three-body hydraulic fracturing stress measurement push-pull valve to solve the technical problems in the prior art

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  • Triplex hydrofracturing stress measurement push-pull valve
  • Triplex hydrofracturing stress measurement push-pull valve
  • Triplex hydrofracturing stress measurement push-pull valve

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Embodiment Construction

[0046] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship 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, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the technical field of stress measurement, in particular to a triplex hydrofracturing stress measurement push-pull valve which comprises a fracturing part, a water release part, a setting part and a valve body. The setting part is internally provided with a setting water passage communicated with the outside; the fracturing part is internally provided with a fracturing water passage communicated with the outside; the water release part is internally provided with a water release hole communicated with the outside; the valve body is provided with a water inlet hole communicated with one end of the valve body, the outer wall of the valve body is provided with a water outlet groove, and the bottom of the water outlet groove is provided with a water outlet hole communicated with the water inlet hole. The fracturing part, the water release part and the setting part are in sequentially coaxial connection, and the valve body sequentially penetrates the center hole of the setting part and the center hole of the water release part to be communicated with the center hole of the fracturing part. The valve is more convenient to assemble and maintain, problems of narrow and long internal space and difficulty in maintenance and replacement of seal rings in the prior art are avoided, consideration of space and distance limitations in seal ring mounting and demounting is avoided, and accordingly possibility is provided for extension and full play of each function.

Description

technical field [0001] The invention relates to the technical field of geostress measurement, in particular to a three-body hydraulic fracturing stress measurement push-pull valve. Background technique [0002] In-situ stress is the initial stress existing in the crustal rock mass, and it is also one of the important physical property parameters of the solid earth. In-situ stress is the root force that causes deformation, instability and failure of rock mass. Therefore, the measurement of in-situ stress has important scientific significance in the study of earthquake mechanism, mine tunnel design, and large-scale dam foundation construction. [0003] The most important method for measuring ground stress is hydraulic fracturing. Hydraulic fracturing is a method of determining the magnitude and direction of in-situ stress by isolating a section of open rock hole in the drill hole, injecting high-pressure liquid into the isolated section, and causing the rock mass in the fract...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/06E21B49/00E21B43/26
CPCE21B34/06E21B43/26E21B49/006
Inventor 张重远陈群策吴满路金铭
Owner INST OF GEOMECHANICS
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