CAJ | 학술논문

综合采用岩石单轴压缩试验、三轴压缩试验及测井资料计算，对塔里木盆地克深前陆冲断带单井的岩石力学参数进行分析，通过单轴-三轴校正及动态-静态校正，确定静态岩石力学参数的单井剖面，利用高斯插值对岩石力学参数空间分布特征进行研究，并分析岩石力学参数与地层深度的关系。结果表明：岩石力学参数的空间分布主要与岩相有关，并在一定程度上反映了储层物性特征，弹性模量、内聚力和抗压强度大而泊松比小的区域储层物性相对更好；随着地层深度的增加，弹性模量、内聚力和抗压强度逐渐增加而泊松比逐渐下降；利用岩石力学参数与地层深度的关系以及断层带岩石力学参数的经验比例，可以对不同地质单元的岩石力学参数进行取值，为后续的地应力场及储层裂缝数值模拟奠定基础。
종합채용암석단축압축시험、삼축압축시험급측정자료계산，대탑리목분지극심전륙충단대단정적암석역학삼수진행분석，통과단축-삼축교정급동태-정태교정，학정정태암석역학삼수적단정부면，이용고사삽치대암석역학삼수공간분포특정진행연구，병분석암석역학삼수여지층심도적관계。결과표명：암석역학삼수적공간분포주요여암상유관，병재일정정도상반영료저층물성특정，탄성모량、내취력화항압강도대이박송비소적구역저층물성상대경호；수착지층심도적증가，탄성모량、내취력화항압강도축점증가이박송비축점하강；이용암석역학삼수여지층심도적관계이급단층대암석역학삼수적경험비례，가이대불동지질단원적암석역학삼수진행취치，위후속적지응력장급저층렬봉수치모의전정기출。
Rock mechanical parameters of single wells in the Keshen foreland thrust belt of Tarim Basin were analyzed by unixial compression, triaxial compression tests and logging data calculations, and single well profiles of static rock mechani-cal parameters were confirmed by uniaxial-triaxial and dynamic-static corrections. Analyses on the spatial contribution of rock mechanical parameters using Gaussian interpolation were carried out, and the relationship between rock mechanical parame-ters and strata depth was analyzed. The results show that rock mechanical parameters are mainly related to lithofacies, and are correlated to some extent with the reservoir physical property:for instance, areas with high modulus of elasticity, cohe-sion, compressive strength and low Poisson's ratio have better reservoir physical property. With increasing strata depth, mod-ulus of elasticity, cohesion and compressive strength increase, while Poisson's ratio decreases gradually. Rock mechanical parameters in different geological elements can be estimated effectively using the relationship derived in this study combining with the experiential percentage of rock mechanical parameters in fault belts, which can facilitate subsequent numerical simu-lations of crustal stress field and reservoir fracture.