川口油田姚50-姚80区长6油层组沉积微相研究  

Sedimentary microfacies of Chang 6 formation in Yao 50～Yao 80 area in Chuankou Oilfeild

作　　者：呼园平 樊平天[1] 刘浪[1] 黄博[1] 南雷 Hu Yuanping;Fan Pingtian;Liu Lang;Huang Bo;Nan Lei(Nanniwan Oil Production Plant,Yanchang Oilfield Corporation,Shanxi Yan’an 716000)

机构地区：[1]延长油田股份有限公司南泥湾采油厂

出　　处：《石化技术》2019年第9期131-131,130,共2页Petrochemical Industry Technology

摘　　要：通过岩心观察、粒度、沉积构造及测井曲线组合特征,研究了川口油田姚50-姚80区长6油层组沉积微相。结果表明:长6粒度概率累积曲线为典型的2段式特征、发育交错层理和平行层理、以箱状或钟状测井组合为主,结合区域沉积背景,认为长6主要为三角洲前缘沉积。长6发育水下分流河道和分流间湾微相,平面上自东北到西南方向发育多条水下分流河道,为有利的勘探目标。Based on core observation,grain size,sedimentary structure and logging c5 urve combination characteristics,the sedimentary microfacies of Chang 6 formation in Yao 50-Yao 80 area of Chuankou oilfield are studied.The results show that the probability cumulative curve of Chang 6 grain size is a typical two-stage feature,cross-bedding and parallel bedding are developed,box or bell-shaped logging combination is dominant,and in combination with regional sedimentary background,it is considered that Chang 6 is mainly delta front deposit.Chang 6 developed underwater distributary channel and interdistributary bay microfacies,and many underwater distributary channels from northeast to southwest in plane,which are favorable exploration targets.

关 键 词：沉积微相 长6油层组 川口油田 鄂尔多斯盆地 

分 类 号：P61[天文地球—矿床学]