摘要
东营凹陷西部滩坝砂岩储层中发现了石油地质储量近1×108t的油藏,滩坝砂岩沉积体具有其他沉积体不同的测井响应特征。总结了不同岩性、不同物性和含不同流体性质下储层的测井组合响应特征和油层、干层、水层识别的具体方法。地层渗透率低和储层压力大是造成该区微电极测井不同于其他地区的原因。该区地层水矿化度总体偏高使油层段深、中、浅电阻率测井呈现无差异,而水层则呈现较大差异。同时由于储层含高矿化度束缚水,干层呈现低孔隙度、低电阻率的特点。
Nearly 1×108t oil has been found in beach-bar sandstone reservoirin the west of Dongying Depression.The beach -bar sandstonedeposit has different well log response compared with other kinds of depositional bodies.The reservoir characteristics with different lithology,physical and fluid properties were analyzed,and the methods to recognize the oil,water and dry layers was summarized.It is considered that the difference on micro-electric log with other areas was attributed to the low permeability and high res...
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2009年第1期41-43,114,共4页
Petroleum Geology and Recovery Efficiency
关键词
滩坝砂岩
储层识别
测井响应
微电极
侵入特征
沙四段
东营凹陷西部
beach-bar sandstone
reservoir recognition
log response
micro-electric log
intrusion characteristics
Es4
west of Dongying Depression
