CAJ | 학술논문

裂缝是塔里木盆地奥陶系碳酸盐岩沉积的重要渗流通道和储集空间，因此裂缝研究对油气藏开发具有重要意义。利用岩心、测井等资料对裂缝识别，选择裂缝相关参数（如线密度及充填性等）予以统计，研究塔中地区裂缝发育垂向及平面分布规律。结合裂缝发育规律，研究裂缝发育受岩性、层厚、断层及岩溶的影响关系。主要基于地质统计方法，预测塔中地区奥陶系裂缝发育的有利区带集中在主要断裂带附近及断裂带交汇处。预测的有利区带与其他方法如三维有限元数值模拟方法预测的区带一致。
렬봉시탑리목분지오도계탄산염암침적적중요삼류통도화저집공간，인차렬봉연구대유기장개발구유중요의의。이용암심、측정등자료대렬봉식별，선택렬봉상관삼수（여선밀도급충전성등）여이통계，연구탑중지구렬봉발육수향급평면분포규률。결합렬봉발육규률，연구렬봉발육수암성、층후、단층급암용적영향관계。주요기우지질통계방법，예측탑중지구오도계렬봉발육적유리구대집중재주요단렬대부근급단렬대교회처。예측적유리구대여기타방법여삼유유한원수치모의방법예측적구대일치。
Fracture is an important percolation flow passage and oil-gas reservoir space in Ordovician carbonate sedimentary in Tarim Ba- sin. The research of structural fracture is significant to oil - gas reservoir development. Applying to the analysis of rock cores and well - logging data, this paper chooses some related parameters （such as orientation, attitude, linear density and different types of fillings） and aims to find vertical development and distribution regulation in Ordovician of Tazhong Area. Furthermore, this study reveals that the developments of structural fractures were controlled by many factors such as lithology, thickness of rock stratum, fault or karst. Based on the geology statistic and three dimensional finite element methods, this paper predicts that dominant faults and fault crossing belts are the available range of fracture development in Tazhong Area.