supported by the National Natural Science Foundation of China(Nos.51827901,42477191,and 52304033);the Fundamental Research Funds for the Central Universities(No.YJ202449);the Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences(No.SKLGME022009);the China Postdoctoral Science Foundation(No.2023M742446).
Gas content serves as a critical indicator for assessing the resource potential of deep coal mines and forecasting coal mine gas outburst risks.However,existing sampling technologies face challenges in maintaining the...
funding support from the National Natural Science Foundation of China (Nos. 42477208 and 52079134);the Natural Science Foundation of Hubei Province, China (No. 2024AFA072);the Youth Innovation Promotion Association CAS (No. 2022332);the National Key R&D Program of China (No. 2024YFF0508203);the Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering Safety (Nos. SKLGME-JBGS2402 and SKLGME022022)。
Accurate acquisition of the rock stress is crucial for various rock engineering applications.The hollow inclusion (HI) technique is widely used for measuring in-situ rock stress.This technique calculates the stress te...
National Natural Science Foundation of China (Nos.U2013603,51827901,and 52403383);Program for Guangdong Introducing Innovative and Entrepreneurial Teams (No.2019ZT08G315);Institute of New Energy and Low-Carbon Technology (Sichuan University);State Key Laboratory of Coal Mine Disaster Dynamics and Control of Chongqing University。
Lunar core samples are the key materials for accurately assessing and developing lunar resources.However,the difficulty of maintaining borehole stability in the lunar coring process limits the depth of lunar coring.He...
Supported by the National Natural Science Foundation of China(52274051);CNPC-China University of Petroleum(Beijing)Strategic Cooperative Project(ZLZX2020-01).
In order to identify the development characteristics of fracture network in tight conglomerate reservoir of Mahu after hydraulic fracturing,a hydraulic fracturing test site was set up in the second and third members o...
funding support from National Natural Science Foundation of China(Grant Nos.52225403,51827901,and 52304146).
The pressure-preserving controller is the key component of deep in situ pressure-preserving coring(IPP-Coring).With increasing drilling depth,the environmental temperature and pressure increase accordingly.However,due...
supported by National Natural Science Foundation of China (Nos. 51827901, 52104096);the Shenzhen National Science Fund for Distinguished Young Scholars (No. RCJC20210706091948015);Open Fund of State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University (No. SKHL2216);National Key R & D Program of China (No. 2022YFB3706605);Youth Foundation of Sichuan Natural Science Foundation (No. 2023NSFSC0780)。
Using pressure-preserved coring technique to determine in-situ gas content provides a more precise assessment of gas resource reserves and safeguard of mining safety in coal seams. How coring technique and depth affec...
financially supported by the National Natural Science Foundation of China (Grant Nos. 52225403, 52304146, 51827901);Sichuan Science and Technology Program (2023NSFSC0919)。
The pressure-preserving controller is the core part of deep in-situ pressure-preserving coring(IPP-Coring) system, and its pressure-preserving capability is the key to IPP-Coring technology. To achieve a good understa...
supported by the National Natural Science Foundation of China (52225403, 52304146);the Sichuan Science and Technology Program (2023NSFSC0919, 2023NSFSC0790);the China Postdoctoral Science Foundation (2023M742460)。
Pressure-preserved coring is an effective means to develop deep resources. However, due to the complexity of existing pressure-preserved technology, the average success rate of pressure-preserved coring is low. In res...
supported by the National Natural Science Foundation of China(Nos.52225403,U2013603,52434004,and 52404365);the Program for Guangdong Introducing Innovative and Entrepreneurial Teams(No.2019ZT08G315);the Shenzhen National Science Fund for Distinguished Young Scholars(No.RCJC20210706091948015);the National Key Research and Development Program of China(2023YFF0615404);the Scientific Instrument Developing Project of Shenzhen University。
The lunar surface and its deep layers contain abundant resources and valuable information resources,the exploration and exploitation of which are important for the sustainable development of the human economy and soci...
supported by the Sichuan Science and Technology Program (Grant Nos.2023NSFSC0004,2023NSFSC0790);the National Natural Science Foundation of China (Grant Nos.51827901,52304033);the Sichuan University Postdoctoral Fund (Grant No.2024SCU12093)。
Deep oil and gas reservoirs are under high-temperature conditions,but traditional coring methods do not consider temperature-preserved measures and ignore the influence of temperature on rock porosity and permeability...