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A device and method for testing the breccia degree of fracture wall

A testing device, breccia technology, applied in the direction of measuring device, using a stable shear force to test the strength of materials, instruments, etc., can solve the problem of no breccia degree, etc., to reduce boundary constraints and stabilize fracture shear The effect of cutting the amount of sliding displacement

Active Publication Date: 2017-05-31
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no device and method for testing the breccia degree of the fracture wall

Method used

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  • A device and method for testing the breccia degree of fracture wall
  • A device and method for testing the breccia degree of fracture wall
  • A device and method for testing the breccia degree of fracture wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] figure 1 It is a top view structural schematic diagram of an embodiment of the present invention; image 3 It is a structural schematic diagram of a sliding translation plate in the present invention; Figure 4 It is a structural schematic diagram of the first plate of the sliding translation plate in the present invention. Also refer to figure 2 , figure 2 It is a cross-sectional schematic diagram of another embodiment of the present invention. Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the fracture wall breccia degree test device is used to test the breccia degree of the test rock sample split into the first rock sample and the second rock sample, including:

[0061] bracket 1;

[0062] The fixing device 4 is arranged on the bracket 1 and is used to fix the first rock sample;

[0063] The first hydraulic cylinder 6 is arranged on the support 1, and is used to apply a constant positive pressure to the second rock sample so that the pres...

Embodiment 2

[0080] In the above embodiments, the first hydraulic cylinder 6 and the second hydraulic cylinder 7 can be fixed on the bracket 1 as separate components. However, for purposes such as ordering the overall structure of the test device of the present invention, the first hydraulic cylinder 6 and the second hydraulic cylinder 7 may be integrated with the support 1 . Other parts can still use the description of the above embodiments. Such as figure 2 as shown, figure 2 It is a cross-sectional schematic diagram of another embodiment of the testing device of the present invention. see also figure 1 , image 3 and Figure 4 . The first hydraulic cylinder 6 includes:

[0081] The first hydraulic chamber is opened on the first side wall 101;

[0082] The first piston 602 is located in the first hydraulic chamber. The first piston 602 divides the first hydraulic chamber into a first propulsion chamber 604 and a first reset chamber 605. The first reset chamber 605 is located on...

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Abstract

A brecciation degree testing device for cracked wall surfaces and a method are disclosed. The device is used for subjecting test rock samples split into a first rock sample and a second rock sample to brecciation degree testing, and comprises a support; a fixing device disposed on the support and used for fixing the first rock sample; a first hydraulic cylinder disposed on the support and used for applying a positive stress on the second rock sample so that the stress of lamination of the first and second rock samples is constant; a constant-pressure pump connected to the first hydraulic cylinder; a second hydraulic cylinder disposed on the support and used for applying a tangential stress on the second rock sample so that relative parallel sliding between the second rock sample and the first rock sample occurs, with the tangential stress being perpendicular to the positive stress; a constant flow pump connected to the second hydraulic cylinder; and a computer connected to the constant flow pump and used for recording the instant working pressure of the constant flow pump and forming a time-pressure curve. The device can evaluate the severity degree of brecciation for the cracked wall surfaces under shear stress.

Description

technical field [0001] The invention relates to the technical field of simulating and testing the brecciaization process of the fracture wall surface and the brecciaization degree under the action of shearing and sliding of reservoir rock fractures in the development of oil and gas fields, specifically a kind of brecciaization degree of the fracture wall surface Test device and method. Background technique [0002] With the acceleration of petroleum exploration and development, the effective development of low-permeability and ultra-low-permeability fractured reservoirs has become an important means to increase and stabilize oil and gas production. This kind of reservoir rock has high degree of compaction, high brittleness, and well-developed natural fractures; the large-scale slick water fracturing process induces shear slip in natural fractures, improves reservoir permeability characteristics, increases reservoir production rate, and natural fractures generate shear. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/00G01N3/24
Inventor 张福祥周新源杨向同袁学芳张扬张日兴刘洪涛刘明球郇国庆周鹏遥雷胜林任春玲
Owner PETROCHINA CO LTD