摘要
针对井地电位测量取得的丘陵油田陵4块的实测电位数据,采用数值模拟和反演成像方法对实测电位数据进行了处理,得到了陵4块储层的电阻率分布,结合储层孔隙度、岩性和地层水矿化度等资料,利用反演电阻率对目的层注水前缘和剩余油气分布进行了定性和半定量分析。经与生产动态测试和其他开发地质资料对比表明,井地电位测量资料的结果与其他监测资料吻合较好,通过新钻井和措施调控,取得了良好效果,为低渗透砂岩油田的剩余油分布监测提供了有力依据。
The distribution of underground resistivity of No. 4 Section of Qiuling Oilfield is obtained by processing the practical measurements of borehole-surface electrical potential with numerical simulation and inversion imaging. Based on the distribution and combined with data of reservoir porosity, lithology and formation water salinity etc. , distributions of sandbody, main current direction and waterflood front, as well as residual hydrocarbon saturation of sub-layer are qualitatively or semi-quantitatively analyzed. The analyzed result is basically accordant with that of dynamic production test and other geological data for development, gains effects in newly drilled borehole and other development adjusting measures, might be a reference of residual oil distribution monitoring in low-permeability sand reservoir.
出处
《测井技术》
CAS
CSCD
2008年第3期267-271,共5页
Well Logging Technology
关键词
生产测井
井地电位成像
低渗透率
砂岩油藏
注水前缘
电阻率
剩余油
production well logging, borehole-surface electrical imaging, low permeability, sand reservoir, waterflood front, resistivity, residual oil
