泛滥—分流平原相储层中河间砂体的精细描述

应用密井网测井曲线，通过对储层中河间单砂体的追溯对比，在河间沉积中识别出两大类、４种沉积微相。第一类为溢岸沉积砂体：包括天然堤与河漫滩２种沉积微相；第二类为决口沉积砂体：包括决口水道和决口席状砂两种沉积微相。提出河间砂体与主河道砂体３种可能的连通类型（肯定连通型、连通较差型和不连通型）。描述了不同相带位置河间砂体发育的主要类型，并对这类储层在油田开发调整中的作用进行了讨论。

FINE DESCRIPTION OF INTERCHANNEL SANDBODY IN FLOOD-DISTRIBUTARY PAIN RESERVOIR

By applying infilling well pattern log and through the tracing back and comparison of interchannel sandbody in the reservoir, 2 types and 4 kinds of deposition microfacies are idetified from interchannel deposition. The first type is overflow deposition sandbody which includes two deposition microfacies: levee and alluvial flat. The second type is crevasse deposition sandbody which also includes two deposition microfacies: crevasse channel and crevasse sheet sand. Three possible connectivity types are put forward for interchannel sandbody and main channel sandbody. They are positive connectivity, worse connectivity and no disconnectivity. This paper also describes the main development types of interchannel sandbody at different facies belt location and discusses the role of this kind of reservoir in oil field production adjustment.