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