CAJ | 학술논문

利用岩心观察、地震、钻井等资料，结合川中地区构造运动背景，以龙岗地区须六段断裂构造形迹为基础，研究裂缝形成演化模式，结合岩石力学与构造地质学理论，使用数值模拟分析技术，预测该区的古构造应力场及须六段底部的裂缝发育与分布情况。结果表明：研究区裂缝主要形成于燕山运动早期和晚期，共形成了两期5组；裂缝的发育主要受断裂和构造部位的影响，分布极不均匀。该研究成果与实际生产情况匹配较好，对下一步勘探开发部署有一定的指导意义。
이용암심관찰、지진、찬정등자료，결합천중지구구조운동배경，이룡강지구수륙단단렬구조형적위기출，연구렬봉형성연화모식，결합암석역학여구조지질학이론，사용수치모의분석기술，예측해구적고구조응력장급수륙단저부적렬봉발육여분포정황。결과표명：연구구렬봉주요형성우연산운동조기화만기，공형성료량기5조；렬봉적발육주요수단렬화구조부위적영향，분포겁불균균。해연구성과여실제생산정황필배교호，대하일보감탐개발부서유일정적지도의의。
Based on the fracture structural features of Xu-6 member in Longgang area, using the data such as core observation, seism and drilling and combined with the tectonic movement background in central Sichuan, this paper studied the fracture forma-tion evolutionary model. Meanwhile, combined with the rock mechanics and theories of structural geology and using numerical sim-ulation analysis technique, this paper also predicted the paleotectonic stress field in this area and the fracture development and dis-tribution in the bottom area of Xu-6 member. The results showed that the fractures in the study area were mainly formed in the ear-ly and late period of the Yanshanian orogeny. Two periods five groups of fractures were formed in total. The fracture developments were mainly affected by the fault and tectonic position which led to the extremely uneven distribution. Matching well with the actu-al production conditions, the study results had certain guiding significance for the further exploration and development.