吉木萨尔凹陷二叠系芦草沟组致密油储层沉积特征  

Sedimentary characteristics of tight oil reservoir in Permian Lucaogou Formation,Jimsar Sag

作　　者：斯春松[1,2] 陈能贵 余朝丰 李玉文 孟祥超 

机构地区：[1]中国地质大学(武汉)资源学院,武汉430074 [2]中国石油杭州地质研究院,杭州310023

出　　处：《石油实验地质》2013年第5期528-533,共6页Petroleum Geology & Experiment

摘　　要：吉木萨尔凹陷二叠系芦草沟组主要为湖泊和三角洲相沉积,岩石类型主要有泥岩、碳酸盐岩和细粒级碎屑岩。发育上、下2个致密油甜点体,下甜点体以细粒级碎屑岩沉积为主,三角洲前缘远砂坝和席状砂是储层甜点发育的主要微相类型;而上甜点体以碳酸盐岩类沉积为主,微相类型为滨浅湖滩坝。上、下甜点体厚度大,分布稳定,致密油勘探潜力巨大。In the Permian Lucaogou Formation in the Jimsar Sag, lake and delta facies strata deposited, and rocks mainly include mudstone, carbonate and fine-grained clastie rock. Two tight oil cookies developed. The lower cookies are mainly in fine-grained clastic rocks, and generate in the microfacies of delta front distal bar and sheet sand. The upper cookies are mainly in crabonate rocks, and generate in the microfacies of beach bar of shore shallow lake. The upper and lower cookies are thick and widespread, indicating giant potential for tight oil reservoir.

关 键 词：岩石类型 储层“甜点”体 沉积相 芦草沟组 吉木萨尔凹陷 准噶尔盆地 

分 类 号：TE122.23[石油与天然气工程—油气勘探]