摘要
高温岩体地热开发过程中存在渗流场、应力场、温度场3场耦合效应。针对目前考虑损伤作用和热对流影响的3场耦合模型、关于热储层特别是人工储留层周围高温岩体的热破裂、温度场的变化和热对流交换规律的研究以及原位试验方面的资料较少的现实,建立了高温岩体热流固耦合损伤模型,并将上述模型用于高温岩体地热开发中。通过数值模拟,揭示高温岩体地热开发过程中高温岩体的热破裂机理、温度场、渗流场的变化规律以及人工储留层中热流体的对流规律,所得研究成果对高温岩体地热开发具有理论意义和实用价值。
The three coupling effects of stress field,seepage field and temperature field exit in the exploitation of Hot Dry rock.For taking the damage effect into consideration and three fields coupling model under the effect of heat convection and concerning the heat rupture,temperature field＇s variation of hot dry rock around heat reservoir especial the manual reservoir,the research of heat convection＇s law and the information of in-situ test are poor,this paper established the coupling damage model of thermal-hydrological-mechanical first.Using the mathematical model in the exploitation of Hot Dry Rock and the numerical simulation,discovered heat fracture mechanism and changing law of temperature field,seepage field of Hot Dry Rock and the convection law of thermal fluid in the manual reservoir in the exploitation of Hot Dry Rock.The achievements of the research have theoretical significance and practical value for the exploitation of hot dry rock.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第3期65-69,共5页
Journal of Wuhan University of Technology
基金
辽宁省重点实验室项目(2008S111)
关键词
高温岩体
饱和多孔介质
热流固耦合损伤模型
hot dry rock
saturated porous medium
the coupling damage model of thermal-hydrological-mechanical
