宋延杰;曹雅楠;柯涛;赵毅;唐晓敏;付健;

• 1:东北石油大学地球科学学院

• 2:东北石油大学非常规油气成藏与开发省部共建国家重点实验室培育基地

• 3:中国石化江苏石油工程有限公司地质测井处

摘要(Abstract)：

江苏G油田某断块储层采用注淡水方式驱油,采用电阻率测井技术划分水淹层比较困难,而地化热解录井技术不受地层水矿化度变化影响,可以区分油层/弱水淹层与中水淹层、强水淹层。在模拟断块储层条件下,选用孔隙度相近的7块岩样作为一组,采用稳态法油水同驱制作不同产水率样品,测量样品地化热解参数和电阻率;选取岩样含油气总量(P_g)、原油轻重组分指数(PS)作为断块地化热解水淹敏感性参数,选取RFOC-RILD和RILD作为断块测井水淹敏感性参数,采用地化热解图版将油层/弱水淹层、中水淹层、强水淹层区分开,再利用电阻率图版将油层和弱水淹层区分开,建立录测结合水淹层评价图版,图版精度为83%,明显高于地化热解录井水淹层划分图版精度和测井水淹层划分图版精度。结果表明:随着产水率(F_w)升高,P_g、液态烃含量(S1)和热解烃含量(S2)降低,且P_g降低更明显;当注入水矿化度与原始水矿化度比为0.5时,0≤F_w≤10%样品的电阻率明显高于其他产水率范围样品的电阻率。随着水淹程度的增强,井壁取心样品PS呈现明显减小的趋势。地化热解录井与电阻率测井技术结合的水淹层评价方法可更好地实现G油田4级水淹级别的精细划分与解释。

关键词(KeyWords)：淡水水淹;地化热解和电阻率联测实验;水淹实验响应特征;水淹敏感性参数;水淹级别划分图版;地化热解录井技术;电阻率测井技术

Abstract:

Keywords:

基金项目(Foundation):黑龙江省自然科学基金项目(D2015012)

作者(Author):宋延杰;曹雅楠;柯涛;赵毅;唐晓敏;付健;

Email:

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