单洞型油藏弹性开采实验研究  

Experimental study of elastic recovery for single-cavity reservoir

作　　者：程倩[1] 熊伟[1] 高树生[1] 薛惠[1] 胡志明[1] 

机构地区：[1]中科院渗流流体力学研究所,河北廊坊065007

出　　处：《特种油气藏》2009年第2期47-49,共3页Special Oil & Gas Reservoirs

基　　金：国家973项目"碳酸盐岩缝洞型油藏开发基础研究"(2006CB202404)资金资助

摘　　要：塔河油田缝洞型碳酸盐岩储集层中的溶洞是主要的油气储集空间,呈高度离散分布。为更好地认识此类油藏的开采动态特征,提出单洞模型进行弹性开采实验研究。结果表明:单洞模型压力、产量随时间呈指数关系递减;基于物质平衡理论,建立单洞型油藏压力、产量递减模型。采用该递减模型可有效计算单洞模型的压力、产量,验证溶洞原始体积的相对误差为4.23%,证明该模型的有效性和合理性。Cavity constitutes the main reservoir space of fracture-cavity carbonate reservoirs in Tahe Oilfield and shows highly discrete distribution. A single-cavity model is presented to study elastic recovery performance in such reservoirs. The result indicates that the pressure and production of the single-cavity model shows exponential decline with time. The decline model of pressure and production is established for single-cavity reservoir based on material balance theory. The relative error of the initial volume of cavity is about 4.23 %, which indicates the model is effective and reasonable.

关 键 词：缝洞型油藏 弹性开采 递减规律 物质平衡 溶洞 碳酸盐岩 塔河油田 

分 类 号：TE311[石油与天然气工程—油气田开发工程]