水平井蒸汽辅助重力驱物理模拟相似准则及应用  

Theory and Application of the Scaling Laws for Physical Modeling for Horizontal Well Steam Assisted Gravity Flooding

作　　者：胡静[1] 刘小波 桑国强[3] 

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中石化胜利石油工程有限公司井下作业公司试油测试大队,东营257000 [3]中国石油勘探开发研究院提高石油采收率国家重点实验室,北京100083

出　　处：《科学技术与工程》2014年第12期31-36,共6页Science Technology and Engineering

基　　金：中国石化石油天然气集团公司科研项目(G5800-13-ZS-KJB003)资助

摘　　要：针对水平井蒸汽辅助重力驱，在建立沿水平井井筒方向上有质量和能量损失的一维多相管流数学模型的基础上，利用相似理论中的方程分析法和量纲分析法推导出了水平井蒸汽辅助重力驱的34个相似准则数，并总结、重新组合出6个主要相似准则数。选用辽河油田现场数据，利用推导出的主要相似准则数群计算得到了高压比例模型的模型参数，并利用该高压比例模型，通过室内三维物理模拟试验优选注采参数。试验结果表明，蒸汽干度和注蒸汽速度是影响水平井蒸汽辅助重力驱成功与否的主要因素，必须保证较高的蒸汽干度和注蒸汽速度，最佳注蒸汽速度建议维持为采液速度的0．67～0．83倍（采注比1．2～1．5）。On the basis of establishing 1-D multi-phase conduit flow mathematical model along the direction of well bore of horizontal well, 34 similar parameters of horizontal well SAG flooding utilizing equation analysis and dimension analysis method in similarity theory, to summarize and regroup 6 main similar numbers are derived. Through Selecting Liaohe oilfield practical data, 3-D high pressure scale physical model for simulating horizontal well SAG flooding is established by using the deduced 6 main similar numbers. With this model experiment, SAG flooding injection-production parameters optimization can be achieved through Laboratory tests. The results of the experiments show that steam dryness and injection rate is the major factor in the success of SAG flooding, which should be maintained in a high level. Best steam injection rate is suggested to be maintained approximately 0. 67 ~0. 83 times as much as the liquid production rate.

关 键 词：蒸汽辅助重力驱 水平井 相似准则数 高压比例模型 注采参数 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]