| 不同注水开发阶段水淹层混合地层水电阻率计算方法 |
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| 引用本文： | 朱学娟, 单沙沙. 不同注水开发阶段水淹层混合地层水电阻率计算方法[J]. 地质与资源, 2017, 26(6): 620-624. |
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| 作者姓名： | 朱学娟 单沙沙 |
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| 作者单位： | 1.中国石油大学胜利学院 油气工程学院, 山东 东营 257000;; 2.中国石油集团测井有限公司 油气评价中心, 西安 710077 |
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| 基金项目： | 中国石油大学胜利学院校级重点科研项目（KY2015010） |
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| 摘 要： | 水淹层混合地层水电阻率是水淹层剩余油饱和度评价必须确定的参数.在开发中后期，注入水会与原始地层水发生离子交换作用，因此不能简单地利用并联导电模型计算混合地层水电阻率，从而增加了计算的困难.首先根据注入水和原始地层水未进行离子交换和离子交换完全两种情况确定出不同的混合地层水电阻率计算方法；再考虑实际注水过程，确定动态的混合地层水电阻率计算模型，在动态模型中利用离子交换率表示不同阶段混合地层水电阻率的变化规律，并提出利用岩电实验和阿尔奇公式确定离子交换率的方法；最后给出混合地层水电阻率在饱和度计算时的应用方法，为定量测井解释的大批量数据处理提供编程思路.
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| 关 键 词： | 水淹层 混合地层水电阻率 动态变化 离子交换 |
| 收稿时间： | 2017-01-03 |
| 修稿时间： | 2017-04-06 |
CALCULATION OF MIXED FORMATION WATER RESISTIVITY IN WATER FLOODED LAYER AT DIFFERENT WATERFLOOD STAGES |
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| ZHU Xue-juan, SHAN Sha-sha. CALCULATION OF MIXED FORMATION WATER RESISTIVITY IN WATER FLOODED LAYER AT DIFFERENT WATERFLOOD STAGES[J]. Geology and Resources, 2017, 26(6): 620-624. |
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| Authors: | ZHU Xue-juan SHAN Sha-sha |
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| Affiliation: | 1.Department of Oil & Gas Engineering, Shengli College, China University of Petroleum, Dongying 257000, Shandong Province, China;; 2.Oil and Gas Evaluation Center, CNPC Logging Co., Ltd., Xi'an 710077, China |
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| Abstract: | The mixed formation water resistivity in water flooded layer is a required parameter in the evaluation of residual oil saturation. Due to the ion exchange between injected water and original formation water in the middle-late stages of development, parallel conductance model can not be used to calculate the mixed formation water resistivity. A more appropriate method is needed. Firstly, the calculation method of resistivity for different mixed formation water is determined, in terms of the two different conditions of non-ion exchange and complete ion exchange. Then considering the actual injection process, the calculation model of dynamic mixed formation water resistivity is confirmed, which use ion exchange rate, calculated by the rock-electric experiment data and Archie Formula, to show the change rule of mixed formation water resistivity at different stages. Finally, the saturation calculation method of mixed formation water resistivity is presented to provide programming ideas for quantitative logging-interpreted mass data processing. |
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| Keywords: | water flooded layer mixed formation water resistivity dynamic variation ion exchange |
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