连通导电模型参数确定及其在白云岩储集层评价中的应用

doi:10.7657/XJPG20220114

新疆石油地质 ›› 2022, Vol. 43 ›› Issue (1): 92-101.doi: 10.7657/XJPG20220114

连通导电模型参数确定及其在白云岩储集层评价中的应用

谢芳¹(), 蔡德洋², 刘瑞林¹, 张承森², 冯程³

1.长江大学地球物理与石油资源学院,武汉 430100
2.中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒 841000
3.中国石油大学（北京）克拉玛依校区石油学院,新疆克拉玛依 834000

收稿日期:2021-04-05 修回日期:2021-05-20 出版日期:2022-02-01 发布日期:2022-01-24
作者简介:谢芳（1987-）,女,湖北荆州人,讲师,博士,测井资料处理,（Tel）15507169923（E-mail） xiefang1010@qq.com
基金资助:
国家自然科学基金(42004089)

Parameters of Connected Conducting Model and Its Application in Dolomite Reservoir Evaluation

XIE Fang¹(), CAI Deyang², LIU Ruilin¹, ZHANG Chengsen², FENG Cheng³

1. School of Geophysics and Petroleum Resources, Yangtze University, Wuhan, Hubei 430100, China
2. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
3. School of Petroleum, Karamay Campus, China University of Petroleum(Beijing), Karamay, Xinjiang 834000, China

Received:2021-04-05 Revised:2021-05-20 Online:2022-02-01 Published:2022-01-24

摘要/Abstract

摘要：

以白云岩储集层物性、岩电、CT扫描、核磁共振和薄片分析资料为基础,提出了一种确定储集层临界含水孔隙度、临界含水饱和度、临界导通指数等连通导电模型参数的方法。将计算得到的临界含水饱和度与T₂截止值、渗透率、CT扫描和薄片分析结果进行对比,并将临界导通指数与胶结指数进行对比,分析了临界含水饱和度、临界含水孔隙度及临界导通指数的物理意义。将岩心样品的连通导电饱和度理论曲线与阿尔奇饱和度理论曲线进行对比,分析了连通导电公式与阿尔奇公式计算结果的差别。最后,根据确定的连通导电模型参数,利用连通导电公式计算了2口井白云岩储集层的含水饱和度,计算结果与试油结论一致。

关键词: 白云岩储集层, 连通导电模型, 阿尔奇模型, 临界导通指数, 临界含水孔隙度, 临界含水饱和度

Abstract:

Based on reservoir physical properties and the data of rock electricity, CT scan, nuclear magnetic resonance and thin slices, a method for determining the parameters of a connected conducting model is proposed for studying dolomite reservoirs, including the critical water-filled porosity, critical water saturation and critical conductivity index. Then the calculated critical water saturation is compared with the T₂ cut-off value, permeability, CT scan photos and thin slice analysis results, the critical conductivity index is compared with the cementation index, and the physical meanings of critical water saturation, critical water-filled porosity and critical conductivity index are discussed. The theoretical saturation curves from connected conduction is compared with the theoretical saturation curves from Archie’s formula, and the difference between them is discussed. Finally, according to the determined parameters of the connected conducting model, the water saturations of the dolomite reservoir in two wells are calculated using the connected conductance formula and the calculated results are consistent with formation test results.

Key words: dolomite reservoir, connected conducting model, Archie model, critical conductivity index, critical water-filled porosity, critical

中图分类号:

TE311

谢芳, 蔡德洋, 刘瑞林, 张承森, 冯程. 连通导电模型参数确定及其在白云岩储集层评价中的应用[J]. 新疆石油地质, 2022, 43(1): 92-101.

XIE Fang, CAI Deyang, LIU Ruilin, ZHANG Chengsen, FENG Cheng. Parameters of Connected Conducting Model and Its Application in Dolomite Reservoir Evaluation[J]. Xinjiang Petroleum Geology, 2022, 43(1): 92-101.

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连通导电模型参数确定及其在白云岩储集层评价中的应用

Parameters of Connected Conducting Model and Its Application in Dolomite Reservoir Evaluation

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