摘要
In order to solve dynamic problems caused by the internal structure of fluvial reservoir,it is necessary to study the fine anatomy of point bar. Taking Minghuazhen Formation in the northern block of Q oilfield,Bohai Sea as an example,the authors studied identification marks,distribution pattern and scale of point bar based on coring,logging and dynamic data. The results show that the length of point bar and the width of lateral accretion body are 713--911 m and 71--111 m,respectively; the dip angle and the thickness of lateral accretion bedding are 3. 5°--5. 9° and 0. 1--0. 5 m. The lateral accretion beddings are the key factor affecting the seepage velocity of the tracer.
In order to solve dynamic Problems caused by the internal structure of fluvial reservoir,it is necessa-ry to study the fine anatomy of Point bar. Taking Minghuazhen Formation in the northern block of Q oilfield, Bohai Sea as an examPle,the authors studied identification marks,distribution Pattern and scale of Point bar based on coring,logging and dynamic data. The results show that the length of Point bar and the width of lateral accretion body are 713-911 m and 71-111m,resPectively;the diP angle and the thickness of lateral accretion bedding are 3. 5o-5. 9o and 0. 1-0. 5 m. The lateral accretion beddings are the key factor affecting the seePage velocity of the tracer.
基金
Supported by Project of Fine Reservoir Description Technology of Heavy Oil Reservoir(No.1507)
关键词
明化镇组
环渤海
油藏结构
油田
解剖
曲流河
案例
河流相储层
reservoir architecture
lateral accretion body
point bar
meandering river
Q oilfield
Bohai Sea