构造作用对火成岩储层的影响

Effects of Tectonic Action on Igneous Rock Reservoirs

在前人研究的基础上,结合岩芯、显微镜下及扫描电镜分析,研究了商58、商741区块沙一段岩性特征及储集空间类型,同时对研究区构造作用对储层发育的影响进行了分析。研究发现:目的层火山岩为爆发相,储集层岩性以火山碎屑岩为主;储集空间类型以原生孔洞和溶蚀孔洞为主,裂缝次之;构造运动控制目的层火山岩的形成,同时储层后期的演化改造与构造运动密不可分。

Based on the research of previous specialist,studies the hthologlc characteristics and reservoir space type of Esl of Shang 58 and Shang 741 blocks by combining core data,thin section data and scanning electron microscope data, and then analyzed the effects of the tectonic action on the reservoir develoPment： The results indicate that the the vocanic rock in target zone is formed by vocanic eruption,the lithologic of the reservoir is volcanic clastic rocks.Reservoir space mainly are primary pore and dissolution pore ,followed by fracture. The formation of the reservoir is controlled by tectonic movement and then the evolution is inseparable form tectonic movement.