High-energy CT ultra-deep layer well drilling and fracturing integrated engineering test equipment

Abstract

The invention belongs to the field of rock mechanical test equipment, and particularly relates to high-energy CT ultra-deep layer well drilling and fracturing integrated engineering test equipment. The high-energy CT ultra-deep layer well drilling and fracturing integrated engineering test equipment comprises a rotary experiment cabin used for containing rock samples, an electronic accelerator CTsystem, a well drilling system and a fracturing system. According to the high-energy CT ultra-deep layer well drilling and fracturing integrated engineering test equipment, through the well drilling system and the fracturing system, well drilling and fracturing simulation experiments are conducted on the rock samples, meanwhile, the state of the rock samples is monitored in real time by combiningwith the electronic accelerator CT system, and thus the rock state in the well drilling and fracturing processes can be learned in detail; and the fracturing simulation experiment effectively utilizesdrill holes formed along with the well drilling simulation experiment, thus well drilling and fracturing are integrated, further, through arrangement of a pressurizing device and a heating device, the almost real stratum temperature and pressure conditions in the well drilling and fracturing processes are further built, and through a multistage structure combination, adaptation of the whole equipment to the various rock samples is improved.

Description

technical field [0001] The invention belongs to the field of rock mechanics test equipment, and specifically provides a high-energy CT ultra-deep drilling and fracturing integrated engineering test equipment. Background technique [0002] Ultra-deep energy development (depth greater than 10,000m) is an inevitable choice to ensure national energy security, optimize energy structure and ecological environment protection in the future, and it is also a breakthrough for my country to seize the highland of future energy technology revolution. At present, the development of ultra-deep energy is faced with the difficult problems of complex geological conditions, harsh environment and great risks in oil and gas exploitation projects. [0003] Traditional drilling and fracturing simulations usually use experimental methods of physical simulation and numerical simulation under triaxial stress conditions. The above experimental methods have irreparable defects, such as the inability to...

AI Technical Summary

Problems solved by technology

At present, the development of ultra-deep energy is faced with complex geological conditions, harsh environment, and extremely high risk of oil and gas exploration projects.

[0003] Traditional drilling and fracturing simulations usually use physical simulation and numerical simulation experimental methods under triaxial stress conditions. The above-mentioned experimental methods have irreparable defects, such as the inability to know the fracture evolution process inside the rock during drilling and fracturing, The interaction process between drilling tools and rock cannot know the dynamic process of rock fracture and fluid movement, and cannot reveal the multi-factor coupling mechanism of rock drilling under the condition of formation temperature and pressure, as well as reservoir fracturing, microseismic, seepage mechanism, etc.

The limitations of traditional experimental methods and means have become a bottleneck in the research and exploration of "high temperature and high pressure drilling dynamics" and "ultra-deep reservoir geomechanics"

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