准东白家海凸起及其周边地区白垩系清水河组扇三角洲沉积与含油气性  

STUDY ON CRETACEOUS QINGSHUIHE GROUP FAN DELTA SEDIMENT ALL AROUND ZHONGDONG BAIJIAHAI HEAVE AND HYDROCARBON CONDITION

作　　者：罗曦[1] 徐山[1] 伍菁华[2] 马效杰[2] 陈勇[2] 

机构地区：[1]西南石油大学资源与环境学院,四川成都610500 [2]新疆油田公司地球物理研究所,新疆乌鲁木齐830000

出　　处：《新疆石油天然气》2008年第3期9-12,33,共5页Xinjiang Oil & Gas

摘　　要：在前人工作和对扇三角洲沉积特征认识的基础上,通过对岩心录井、测井、物探等资料的综合分析,较好的建立了本区的扇三角洲沉积模式,重新绘制了本区的沉积相平面图,同时明确指出:本区清水河组是一套以靠扇型扇三角洲为主体的冲积扇-扇三角洲-滨浅湖-浊积扇沉积。其中,以C19-C002-C013-C50井一线为界,北东向一侧为扇三角洲平原亚相,主要发育河道和河道间两种微相;南西向一侧为扇三角洲前缘亚相,以发育水下分流河道、水下分流河道间、席状砂三种微相为特征。在含油气性方面,由于地处扇三角洲前缘的C43井区席状砂体较为发育而且其下覆地层侏罗系中已有良好的油气显示,因此,综合勘探潜力很大,另外在F16井区等主要河道前缘地区同样可望在白垩系获得油气突破。Through the comprehensive analysis of core lagging materials,well logging materials and seismic materials,based on the work of predecessor and the knowledge of fan delta,the sedimentary mode of the fan delta and the sedimentary facies plan is finished in the paper,at the same time it is definitely pointed out that: This sedimentary facies is fan delta accompanied with alluvial fan,shore mere and turbidity fan.The boundary of the facies is the connection of well cai-19-well cai002-well cai013-well cai50.In the northeast there is a fan delta plain subfacies which mainly grow into the watercourse and the interchannel microfacies;In the southwest there is a fan-delta front subfacies which grow into three microfacies.They are sub aqueous distributary's channel and subaqueous distributaries compartment and sand sheet.In the aspect of hydrocarbon,since the hydrocarbon substance in the Jurassic in the well cai43 region located in the sand sheet of the fan delta has been discovered,we can say this area has a prosperous potential,also in the region of well Fu16 we might have a good harvest.

关 键 词：扇三角洲 沉积相 白垩系清水河组 准噶尔盆地 

分 类 号：TE121.3[石油与天然气工程—油气勘探]