地质通报2016，Vol.35Issue(2)：440-447,8.
三角洲前缘厚层砂岩孔隙结构及微观渗流特征--以吴仓堡地区长6储层为例
Reservoir characteristics of thick sandstone and micro-anisotropy of delta ;front micro-facies:A case study of Chang 6 reservoir in Wucangbu area
摘要
Abstract
Based on data obtained from cast slice, mercury injection test, SEM, physical properties, an d oil/water micro-displace⁃ment experiment, the authors made a thorough study of the petrological characteristics, porosity and permeability characteristics, pore structure characteristics, diagenesis and micro-anisotropy of Chang 6 reservoir in Wucangbu area, and analyzed the main influ⁃encing factors. The results show that the sedimentary environment of the Chang 6 thick sandstones reservoir is a delta front derived from the provenance in the northeast. In addition, the reservoir is characterized by medium compositional maturity and high textual maturity. The reservoir space includes residual intergranular pores, intergranular emposieu and intragranular emposieu. The sedimen⁃tary micro-facies and diagenesis constitute the main factors controlling the reservoir properties. The diagenetic period affecting reser⁃voir development is stage A of middle diagenesis. The middle compaction, clay film cementation, residual intergranular pore diagen⁃esis facies with weaker compaction and the secondary dissolution pore diagenesis facies are favorable diagenetic facies belts for reser⁃voir development. Four oil displacement types are distinguished by studying reservoir microscopic heterogeneity, and the microscop⁃ic pore structures can more really reflect the reservoir's essential characteristics than the macroscopically physical properties.关键词
吴仓堡地区/孔隙结构/成岩作用/油水驱替模型/微观渗流特征Key words
Wucangbu area/pore structure/diagenesis/oil/water micro-displacement model/micro-flow characteristics分类
天文与地球科学引用本文复制引用
张振红,朱静,余芳,李成,汪伶俐,李文厚..三角洲前缘厚层砂岩孔隙结构及微观渗流特征--以吴仓堡地区长6储层为例[J].地质通报,2016,35(2):440-447,8.基金项目
中国石油天然气股份公司重大科技专项 （）
