CAJ | 학술논문

基于岩石破裂准则,建立了造缝时期古地应力和现今地应力与裂缝参数之间的关系,通过构造解析确定了造缝时期古地应力的性质和方向,用声速法、水力压裂法和声发射法计算了现今地应力的方向和大小,将裂缝参数计算模型代入古今地应力场的数值模拟结果中,模拟计算了塔河油田二叠系火山岩储集层裂缝的开度、密度和孔隙度.根据岩心观测和测井解释所得的裂缝参数数据编制全区的裂缝线密度与体密度的等值线图来验证模拟结果,表明模拟结果可靠.
기우암석파렬준칙,건립료조봉시기고지응력화현금지응력여렬봉삼수지간적관계,통과구조해석학정료조봉시기고지응력적성질화방향,용성속법、수력압렬법화성발사법계산료현금지응력적방향화대소,장렬봉삼수계산모형대입고금지응력장적수치모의결과중,모의계산료탑하유전이첩계화산암저집층렬봉적개도、밀도화공극도.근거암심관측화측정해석소득적렬봉삼수수거편제전구적렬봉선밀도여체밀도적등치선도래험증모의결과,표명모의결과가고.
Based on the rules of rock fracture, the relationship between the paleo- and present stresses and the fracture parameters is established, and the feature and direction of paleo-stress during the fracture initiation period are determined by structural analysis. The present stress' direction and size are calculated using sonic velocity, hydraulic fracturing and acoustic emission methods. By substituting the fracture parameter calculation model into the numerical simulation result of the paleo- and present stress fields, the fracture aperture, porosity and density of the Permian volcanic reservoir in Tahe oilfield are simulated and calculated. The fracture parameters from the core observation and log interpretation are used to plot the contour map of fractural line and volume density in the whole area for verification. The result shows that the simulated results are reliable.