阿克库勒地区三叠系储集层成岩作用  

Diagenesis of Triassic Reservoir in Arkekule Area, Tarim Basin

作　　者：刘辰生[1] 田永强[2] 郭建华[1] 

机构地区：[1]中南大学地学与环境工程学院,长沙410083 [2]中国石油长庆油田分公司勘探部,西安710021

出　　处：《新疆石油地质》2005年第1期62-64,共3页Xinjiang Petroleum Geology

摘　　要：塔里木盆地阿克库勒地区三叠系岩石样品的物性表明,砂岩的物性受沉积相的控制,纵向上中油组物性最好,上油组最差,砂岩以中等喉道为主;砂岩的孔隙度受到胶结物、分选性和成岩作用的影响,压实作用和胶结作用使砂岩孔隙度减少25%左右,而溶蚀作用使研究区三叠系孔隙度增加12%左右;成岩作用已达到晚成岩作用的B期。The petrophysical property of Triassic reservoir in Arkekule are in Tarim basin is controlled by sedimentary facies, with the better of the middle oil layer and the poor of the upper oil layer as well as sandstone of medium throat radius. The porosity of sandstone reduces by about 25%, due to influences of cementation and compaction (sorting and diagenesis), whereas the porosity of Triassic reservoir increases by about 12% for dissolution. It is concluded that the diagenesis stage has been up to stage-B of late diagenesis.

关 键 词：成岩作用 三叠系 砂岩 孔隙度 喉道 储集层 压实作用 物性 胶结物 胶结作用 

分 类 号：TE122[石油与天然气工程—油气勘探] P618[天文地球—矿床学]