油页岩原位开采物理模拟试验研究现状及展望OA北大核心CSTPCD

Reasonable and efficient in-situ exploitation of oil shale resources is of great strategic significance to alleviate the depletion of conventional oil and gas resources.In view of the uncertainty and process complexity of in-situ mining of oil shale,physical simulation test has become an effective means to study the pyrolysis and heat transfer mechanism of in-situ mining of oil shale.Through consulting a large number of literatures,it is found that the simulation test device for in-situ mining of oil shale is iteratively upgraded from millimeter(particle)size to centimeter and meter(in-site)large size,and various large-scale multi-functional triaxial intelligent test systems have been successfully developed.The effects of temperature,stress and co-heat substances on the pyrolysis of oil shale were studied experimentally.The evolution characteristics of oil and gas products,pore structure and permeability were analyzed,and a research system of in-situ mining of oil shale with Chinese characteristics was formed.In view of the shortcomings of oil shale in-situ mining research under the new situation,suggestions and prospects for future research directions are proposed to improve the research system of oil shale in-situ mining and realize large-scale in-situ mining of oil shale as soon as possible.