溶洞型碳酸盐岩储层酸压效果预测模型  

Forecast model of acid fracturing effect for carbonate reservoirs with dissolved cavern

作　　者：李勇明[1] 郭建春[1] 赵金洲[1] 翟锐[1] 李志刚[2] 

机构地区：[1]油气藏地质及开发工程国家重点实验室西南石油大学,四川成都610500 [2]中油华北油田分公司,河北廊坊065000

出　　处：《特种油气藏》2009年第2期37-39,共3页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金项目“缝洞型碳酸盐岩油气藏酸蚀蚓孔基础理论研究”(50774064);四川省应用基础研究项目“高含硫碳酸盐岩气藏酸携砂压裂的基础理论研究”(2007JY042)部分内容

摘　　要：大容量溶洞储集体是碳酸盐岩油藏重要的储层介质,现场可以通过酸压连通缝洞储集体获得高产油气流,大溶洞体系生产预测是评价酸压效果的基础。假设溶洞体间由薄层渗透阻隔层连接,采用封闭弹性驱动油藏物质平衡方程描述溶洞体系生产规律,建立溶洞体系生产预测模型,给出了隐式数值迭代求解方法,为分析缝洞储层的开采动态提供了新的技术思路。High-capacity cavern space constitutes important reservoir media in carbonate reservoirs. The connectivity of fracture-cavity reservoirs can be improved by acid fracturing to obtain high production. Suppose there are thin permeability barriers between cavern bodies, the production performance of cavern system can be described by using the equation of material balance for closed elastic drive reservoirs. A production forecast model has been established for cavern system, and a solving method of implicit numerical iteration is given. This study provides a new technical idea of analyzing the production performance for fracture-cavity reservoirs.

关 键 词：溶洞体系 生产预测 压力动态 物质平衡 

分 类 号：TE122.3[石油与天然气工程—油气勘探]