松辽盆地南部黑帝庙地区油气成藏模式

应用生物标记化合物m/z191萜烷、藿烷系列和m/z217甾烷系列进行了油源对比,证实下白垩统姚家组葡萄花油层油气来源于上覆地层嫩江组一段,嫩一段烃源岩生成的油气通过断裂运移到该油层。属于上生下储的组合型式,断裂是油气藏形成的主控因素,形成构造-岩性油气藏类型是其主要的成藏模式,该层是黑帝庙地区今后勘探的主要目的层。精细研究姚家组的断裂、低幅度构造与砂体间的配置关系,是今后突破该油层油气勘探的关键。     

Two Types of Strike-Slip and Transtensional Intrabasinal Structures Controlling Sandbodies in Yitong Graben

Recently,the researches on structure controls on sandbodies have provided a new method for predicting petroleum reservoirs.The Yitong(伊通) graben is situated in the northern section of the Tan-Lu(郯-庐) fault system in eastern China.It was characterized by dual properties of strike-slip and extension in Cenozoic.Two types of intrabasinal structures were identified as oblique fault and trans-verse uplift in the graben.The oblique faults arranged en echelon in plain and locally presented nega-tive rosette struct...     

伊通盆地岔路河断陷地层水化学特征与油气保存关系

对伊通盆地岔路河断陷古近系地层水的矿化度、水型及变质系数、脱硫系数的研究表明,该区地层水总体为NaHCO3型水;总矿化度偏低;平面上,孤店斜坡的油气保存条件最差,梁家构造带最好,垂向上,具明显的垂向分带性,万昌组保存条件最差;变质程度高.对地层水化学特征平面及剖面展布的分析,不仅为测井解释提供了准确的参数,更重要的是结合其他地质因素能够指出油气保存的有利地区.