涠洲12-A油田南块涠四段储层特征及主控因素研究.pdf

勘探开发 2020年第11期
涠洲12-A油田南块涠四段储层特征及主控因素研究
严恒 姚意迅 王丽君
中海石油（中国）有限公司湛江分公司  广东  湛江  524057
摘要：涠洲12-A油田南块位于北部湾盆地涠西南凹陷东部，其涠四段主要发育中低孔低渗储层，已有钻探证实成藏，
受限于甜点储层主控因素及展布规律不清，测试产能低等因素，发现储量一直未得到动用，本次研究着重从储层特征研究
出发，弄清了优质储层主控因素及分布规律，准确预测甜点储层平面分布，指导了涠洲12-A油田南块涠四段勘探开发井位
部署，促进了难动用低渗储量的有效开发，取得了较好的经济与社会效益。
关键词：储层特征 沉积微相 主控因素 储层综合评价
Research on Reservoir Characteristics and Key Factors Controlling of W4 segment of the Southern area in
WZ12-A Oilfield
Yan Heng，Yao yixun，WangLijun
Zhanjiang Branch，CNOOC China Limited，Guangdong Zhanjiang 524057
Abstract：The Southern area of Weizhou12-A oilfield is located in the eastern part of Weinan sag，Beibuwan Basin，
developing mesoporous，medium and low permeability reservoirs，reservoir formation has been confirmed by drilling，but the main
control factors and distribution regularity of dessert reservoir are unclear，low test productivity and other factors，so reserves have
not been research focuses on reservoir characteristics，defines the main control factors and distribution law of high-