| 特低渗透油田非线性渗流模型下井网产量 |
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| 引用本文： | 何英,黄延章,杨正明,刘学伟,张亚蒲.特低渗透油田非线性渗流模型下井网产量[J].辽宁工程技术大学学报(自然科学版),2009(Z1). |
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| 作者姓名： | 何英 黄延章 杨正明 刘学伟 张亚蒲 |
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| 作者单位： | 中国科学院渗流流体力学研究所; |
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| 基金项目： | 中石油科学研究与技术开发项目(07-06D-01-08) |
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| 摘 要： | 针对低渗透、低丰度储层难以有效开发动用的难题,以五点井网为例,推导基于非线性渗流条件下的井网产量计算公式,在忽略非线性项时,即为达西渗流,用该方法得到的产量与达西模型的误差在0.5%以内,验证了方法的正确性,可作为低渗透油田井网优化设计方法。将动用系数作为衡量低渗透储层动用程度的指标,为井网优化设计提供参考。并以某低渗透油田区块为例,考察了井距、注采压差与油井产量和动用系数之间的关系。研究结果表明,由于低渗透油田非线性渗流的存在,井距越大,由于克服非线性渗流所消耗的压力越多,动用系数越低,在某低渗透油田区块目前300 m井距下很难建立有效的驱动体系。
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| 关 键 词： | 低渗透油藏 非线性渗流 井距 五点井网 |
Oil well production in non-linear flow model of ultra-low permeability reservoir |
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| HE Ying,HUANG Yanzhang,YANG Zhengming,LIU Xuewei,ZHANG Yapu.Oil well production in non-linear flow model of ultra-low permeability reservoir[J].Journal of Liaoning Technical University (Natural Science Edition),2009(Z1). |
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| Authors: | HE Ying HUANG Yanzhang YANG Zhengming LIU Xuewei ZHANG Yapu |
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| Institution: | HE Ying,HUANG Yanzhang,YANG Zhengming,LIU Xuewei,ZHANG Yapu(Institute of Porous Flow and Fluid Mechanics,the Chinese Academy of Science,Langfang 065007,China) |
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| Abstract: | In view of low-permeability and low-abundance reservoir,due to existence of starting pressure gradient,it can not be effectively explored and produced based on the non-linear flow law under the conditions of different wells net calculation model,as a low-permeability oil wells network optimization design method.Producing coefficient can measure the low permeability reservoir producing level to optimize the well net design.Taking a block of oilfield as an example,it can establish the relation of injection-pr... |
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| Keywords: | low permeability reservoir non-linear flow law well spacing five-spot well pattern |
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