复杂断块油藏二氧化碳吞吐研究与应用  

Research and Application of CO_2 Huff and Puff in A Complex Fault Block Reservoir

作　　者：尹志青[1] 田仲强[1] 单俊杰[2] 王庆[1] 高进锋[1] 杨峰[1] 

机构地区：[1]胜利油田有限公司东辛采油厂,山东东营257094 [2]胜利石油管理局胜东社区管理中心

出　　处：《河南石油》2003年第4期26-28,共3页Henan Petroleum

摘　　要：通过对胜利油田东辛原油与二氧化碳的最小混相压力的预测及适应性研究,结合初期的矿场试验制定东辛油区选井条件。同时,依据室内实验和气体状态方程计算注入量,优化施工参数,并对工艺效果进行经济评价。目前施工16口18井次,措施成功率82.8％,累增油20 972t,投入产出比1:6.01,该工艺对提高封闭小断块油藏采收率起到了一定的作用。Well selection standards for CO2 huff and puff in Etongxin block in Shengli oilfield are determined based on prediction of minimum irascibility pressure of crude oil and CQ2, adaptability study and the preliminary field experiment results. Injection rate is calculated by using gas state equation and laboratory experiment results; operation parameters are optimized; and economic evaluation is performed on technological effects. Eighteen operations have been carried out in 16 wells achieving a success rate of 82. 8%, a cumulative incremental oil production of 20,972 tons and an input - output ratio of 1 -6. 01. This technology can enhance oil recovery of small fault block reservoirs to some extent

关 键 词：断块油田 二氧化碳吞吐 混相压力 选井条件 注入量 

分 类 号：TE357[石油与天然气工程—油气田开发工程]