【摘要】 渐新统—中新统库姆组海相碳酸盐岩是伊朗卡山地区目前最有利的一套储层,且已获得了高产工业油气流。通过钻井、测井、地质、地球物理等方法,对这套储层进行了系统的研究和评价,结果发现,库姆组储层以台地相生物灰岩为主,有效储集空间为溶孔和裂缝,孔隙类型是裂缝+孔隙型,具有双重介质特征。利用地震属性分析、波阻抗反演等方法,对库姆组有利储层的分布进行了平面上的预测,发现有利储层主要分布在断裂、构造发育部位和褶皱的转折端,但平面上和垂向上都具有强非均质性,认为沉积环境、成岩作用和构造活动是控制该区储层发育的3个主要因素。更多还原

【Abstract】 There are 4 sets of potential reservoirs in the Kashan area in Iran,among them the carbonate reservoir of Qom Formation in Oligocene-Miocene is the most favorable one,and high commercial oil and gas flow was yielded from it.According to drilling,logging,geology,geophysics etc,the reservoir is comprehensively studied and evaluated.Some knowledge is gained as followings: bioclastic limestone in the carbonate platform is the main rock type.Valid pores are solution pore and fracture,pore type is fracture+proe,having double medium feature and serious heterogeneity.According to sedimentary facies and diagenesis,reservoir physical characters are better in well Arn-1,Arn-2,Arn-3 than in well Fkh-1,for fractures are not developed and cemented by shale seriously in the latter.The sedimentary environment of the Qom Formation is turbid water carbonate platform.Grain-shoal,bioclastic shoal and point reef are the most favorable locations for valid reservoirs.Sedimentary environment,diagenesis and tectonic movement are the controlling factors of reservoir development.更多还原