滴西12井区呼二段Ⅵ砂组沉积微相研究  

Study of Sedimentary Microfacies of Well DX12 in Eh_2 Ⅵ Sand Group

作　　者：李九梅[1,2] 李维锋[1,2] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学) [2]长江大学地球科学学院,湖北荆州434023

出　　处：《长江大学学报（自然科学版）》2011年第2期53-55,280,共3页Journal of Yangtze University(Natural Science Edition)

摘　　要：在分析滴西12井区呼二段Ⅵ砂组的岩心及测井资料的基础上,对该区呼二段Ⅵ砂组的沉积微相类型与特征及沉积微相平面展布规律进行了研究。结果表明,滴西12井区呼二段Ⅵ砂组为一套曲流河入湖形成的曲流河三角洲沉积,以三角洲前缘亚相为主,夹前三角洲亚相。主要发育水下分流河道、河口砂坝、远砂坝、支流间湾及前三角洲泥5种微相,其中水下分流河道微相分布范围较广,厚度较大,岩性以细-粉砂岩为主,为曲流河三角洲沉积主体。Based on core data and logging data analysis,and regional geological background combined with that DX 12 bis Ⅵ sand called for a meandering river into the lake to form the meandering river delta to the triangular Chau front subfacies mainly sub-folders before the delta phase.The main development of underwater distributary channel,channel mouth bar,distal bar,bar between branches and prodelta mud.Through the study found that oil and gas are mainly distributed in the high part of the underwater structure distributary channel sand body.Through a map of sedimentary microfacies is drawed for providing the study of the plane of exploration with some help.

关 键 词：沉积微相(滴西12井区) 水下分流河道 河口砂坝 

分 类 号：TE121.3[石油与天然气工程—油气勘探]