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| 低渗透异常高压气藏数值模拟研究 | |
| 引用本文： | 徐家年,张振军,李涧松,黄显德,刘虹利. 低渗透异常高压气藏数值模拟研究[J]. 油气地质与采收率, 2011, 18(1) |
| 作者姓名： | 徐家年 张振军 李涧松 黄显德 刘虹利 |
| 作者单位： | 1. 西南石油大学,四川,成都,610500 2. 中国石油辽河石油勘探局,兴隆台工程技术处,辽宁,盘锦,124010 3. 中国石油辽河油田,特种油开发公司,辽宁,盘锦,124010 4. 中国石油大港油田公司,勘探开发研究院,天津,大港,300280 |
| 摘 要： | 气体在低渗透异常高压气藏中的渗流为偏离达西规律的非线性渗流,常规气藏数值模拟技术基于达西定律,无法对这种非线性渗流予以准确描述.基于以前的研究成果,通过分析启动压差、变形介质对低渗透异常高压气藏渗流的影响,建立了低渗透异常高压气藏的三维气、水两相非线性渗流数学模型,模型可以考虑多种非线性渗流对气藏开发动态的影响.利用该模型对四川某低渗透异常高压气藏典型井进行了数值模拟研究,模拟单井增压与不增压开采方案,对比结果表明,低渗透异常高压气藏采用增压开采,生产效果可得到明显改善.模拟单井采用增压开采后,当产气量为11×104 m3/d时,稳产期为8.5 a,采出程度为60.06%,与不增压开采相比,稳产期延长1 a,采出程度提高8.37%. |
| 关 键 词： | 低渗透气藏 异常高压 启动压力梯度 介质变形 数值模拟 |
Numerical simulation study on low permeability and abnormally high pressure gas reservoir |
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| Xu Jianian,Zhang Zhenjun,Li Jiansong et al.Southwest Petroleum University,Chengdu City,Sichuan Province,,China. Numerical simulation study on low permeability and abnormally high pressure gas reservoir[J]. Petroleum Geology and Recovery Efficiency, 2011, 18(1) | |
| Authors: | Xu Jianian Zhang Zhenjun Li Jiansong et al.Southwest Petroleum University Chengdu City Sichuan Province China |
| Affiliation: | Xu Jianian,Zhang Zhenjun,Li Jiansong et al.Southwest Petroleum University,Chengdu City,Sichuan Province,610500,China |
| Abstract: | Gas flow in a low permeable and abnormal high pressure gas reservoir shows non-linear flow that is not in accordance with the Darey's law,the conventional gas reservoir simulation technology that is based on the Linear Darcy's law can not describe accurately the seepage of nonlinear flow of gas in such reservoir.Based on previous research results,the nonlinear flow mathemati-cal model which is established on three-dimensional gas and water two-phase in low permeable and abnormal high pressure gas reservoir ... |
| Keywords: | low permeability abnormally high pressure threshold pressure medium deformation numerical simulation |
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