测井技术2016，Vol.40Issue(5)：556-563,8.DOI:10.16489/j.issn.1004-1338.2016.05.007
鄂尔多斯盆地延安组低对比度油藏饱和度分布模式与测井评价
Saturation Distribution and Log Interpretation Method of Low-contrast Reservoir in Mesozoic Yan’an Formation of Erdos Basin
摘要
Abstract
A lot of low‐contrast oil reservoirs exist in Mesozoic Yan’an formation of Ordos basin . The contrast ratio of oil and water resistivity in these formations is very low and the property of the formation water varies widely ,which makes it very hard to get the right results in well logging evaluation and interpretation .The origin of this kind of reservoir is analyzed ,average capillary pressure curve J function method is adopted to set up the quantitative evaluation formula of oil saturation . By calibrating the saturation formula using sealed coring data , unknow n parameters in oil saturation calculation formula of Yan ’an formation of Ordos basin can be get , and then saturation distribution pattern is studied .Based on the analysis mentioned previously , fine interpretation method of low amplitude structural reservoir is proposed combined well logging ,reservoir developing and log data .Comparing results with developing data shows the effectivity of the proposed fine interpretation method .关键词
测井评价/低对比度油藏/毛细管压力曲线/J函数/饱和度Key words
log evaluation/low-contrast reservoir/capillary pressure curve/J function/saturation分类
天文与地球科学引用本文复制引用
郭浩鹏,石玉江,王长胜,张少华,李卫兵,钟吉彬..鄂尔多斯盆地延安组低对比度油藏饱和度分布模式与测井评价[J].测井技术,2016,40(5):556-563,8.基金项目
国家科技重大专项鄂尔多斯盆地大型岩性地层油气藏勘探开发示范工程 （）
