砂砾岩厚油层的水淹层测井评价技术  

Log Evaluation Technique for Watered out Thick Oil bearing Gravel Sand Zones

作　　者：张宇晓[1] 

机构地区：[1]南阳油田测井公司

出　　处：《测井技术》1997年第4期284-288,共5页Well Logging Technology

摘　　要：张宇晓．砂砾岩厚油层的水淹层测井评价技术．测井技术，１９９７，２１（４）：２８４～２８８油田综合含水越来越高，利用常规测井资料进行水淹层评价变得越来越难。针对这一问题提出确定混合水电阻率、剩余油饱和度和油、水相对渗透率的办法：①对自然电位曲线影响因素进行分析和校正，利用校正后的数值与自然伽马组合计算地层混合水电阻率；②对储层的电阻率影响因素进行校正，建立精度较高的剩余油饱和解释模型；③建立新的油、水相对渗透率图版，并可利用测井资料求出方程中的有关参数，为利用测井资料求准产水率打下基础。利用以上方法处理了近百口井的测井资料，解释符合率在８０％以上。Zhang Yuxiao. Abstract It becomes more and more difficult to accurately evaluate watered out formation with conventional logging data due to high watercut and salinity variations of formation water. For determining resistivity of the mixture of formation water and injection water, residual oil saturation and permeability, the following methods are used:①Correct SP curve for its environmental effects. Then, resistivity of the mixture of formation water and injection water is computed from the corrected SP and GR.②Correct resistivity for its environmental effects and set up a high precision remaining oil saturation interpretation model.③Set up new equations for oil and water relative permeability, and calculate the related parameters in the equations from logging data, thus preparing the ground for accurately solving water productivity. Logging data from about one hundred wells have been processed with the above methods, 80% of the interpreted results agree with that of well test.

关 键 词：砂岩油气藏 水淹层测井 储层 油田 测井解释 

分 类 号：P631.819[天文地球—地质矿产勘探] P618.130.2[天文地球—地质学]