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Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum

A technology of rock mechanics and feature analysis, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problem that the pressure testing machine is not suitable for widespread promotion, and achieves enhanced adaptability and utilization efficiency, convenient movement, and operability. strong effect

Active Publication Date: 2014-06-18
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Abstract
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Problems solved by technology

[0007] It can be seen that the existing pressure testing machines used in the field of rock and soil mechanics research are not suitable for widespread promotion in the field of shale oil and gas exploration, and major improvements must be made

Method used

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  • Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum
  • Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum
  • Rock mechanical characteristic analyzer for non-conventional oil-gas reservoir stratum

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Embodiment Construction

[0032] see Figure 1-5 As shown, the rock mechanical characteristic analyzer for unconventional oil and gas reservoirs of the present invention mainly includes a test box 9 and a uniaxial pressure system integrated in the test box 9, a confining pressure boosting system and a fracturing simulator 20, wherein the fracturing The simulator 20 adopts a horizontally placed two-way hydraulic cylinder 26, and the piston ends on both sides of the two-way hydraulic cylinder 26 are equipped with well wall pressure heads 25 and lateral pressure sensors, which can be used for drilling "infinite" rock samples or shallow rocks in the field. Hole fracturing simulation experiment.

[0033] In addition, the present invention can also install a computer control system in the experiment box 9 to centrally control the actions of the two-way hydraulic cylinder, the uniaxial pressure system and the confining pressure boosting system, and communicate with the lateral pressure sensor of the fracturin...

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Abstract

The invention relates to a rock mechanical characteristic analyzer for a non-conventional oil-gas reservoir stratum. The rock mechanical characteristic analyzer comprises an experiment box, and a single-axis pressure system, a confining pressure boosting system and a fracture simulator which are mounted in the experiment box, wherein the fracture simulator comprises a bidirectional hydraulic cylinder which is arranged transversely; a well wall pressure head and a transverse pressure sensor are mounted on piston ends on two sides of the bidirectional hydraulic cylinder. The mechanical characteristic analyzer is easy and convenient to operate and convenient to move and can precisely measure basic rock mechanical characteristic parameters such as the elastic modulus and the poisson ratio of shale and also perform three-axis stress environment experiment analysis and a fracture simulation experiment on outdoor shallow rocks.

Description

technical field [0001] The invention relates to experimental equipment in the field of unconventional oil and gas exploration and development, in particular to an analyzer for rock mechanics characteristics of unconventional oil and gas reservoirs. Background technique [0002] As my country's demand for oil and gas resources continues to grow, the gap in oil and gas demand is also growing. As conventional oil and gas exploration is increasingly difficult to achieve major breakthroughs, unconventional oil and gas resources will become an important alternative energy source in my country. At present, the unconventional oil and gas resources that can be developed on a large scale are mainly shale oil and gas, coalbed methane and tight sandstone gas, and the corresponding reservoirs are mud shale, coal seam and tight sandstone. [0003] Shale oil and gas is a kind of oil and natural gas mainly in adsorption or free state existing in dark mud shale or carbonaceous mud shale. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
Inventor 张金川黄潇
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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