底水油藏单管排水采油工艺研究及其管柱优化  

Single Tube Water Drainage and Oil Production Technology for Bottom Water Reservoir and Its Jet Pipe Optimization

作　　者：吕孝孝 刘延鑫[1] 王旱祥[1] 张贵才[2] 林达 蒋存民 戴永国 

机构地区：[1]中国石油大学(华东)机电工程学院 [2]中国石油大学(华东)石油工程学院 [3]江苏省海洋油气钻井装备重点实验室

出　　处：《石油机械》2017年第9期80-86,共7页China Petroleum Machinery

基　　金：山东省自然科学基金项目"底水油藏排水采油关键技术研究"(ZR2015EL012);中央高校基本科研业务费专项资金资助项目"碳纤维-钢混合抽油杆柱采油系统优化设计及诊断技术研究"(17CX02022A);青岛博士后应用研究项目"底水油藏单管排水采油工艺及管柱设计"

摘　　要：底水油藏在开采过程中,底水锥进是导致水处理费用增加和开发成本升高的主要原因。为解决底水锥进问题,在双层完井原理的基础上提出了一种基于电潜泵-射流管柱的底水油藏单管排水采油工艺。以胜利油田某试验井为例,采用Eclipse软件对该工艺进行数值模拟分析,结果表明在使用该工艺1 a以后,可将含水体积分数超过98%的油井的含水体积分数降低至86%,开采9 a后,含水体积分数升仅高至90%,累计油增产可达19 651 m^3。同时采用响应曲面法(RSM)结合粒子群优化算法(PSO)对该工艺中的射流管柱结构进行了优化。优化结果表明:优化后射流管柱的效率从6.6%提高到了16.1%,达到了有效开发底水油藏的目的。单管排水采油工艺综合配套技术可为我国底水油藏的开发提供技术支持。In the exploitation of bottom water reservoir, the bottom water coning is the main reason for the cost increase of water treatment and development. In order to address the bottom water coning, a single tube water drain-age and oil production technology for bottom water reservoir based on electric submersible pump-jet pipe has been proposed on the basis of dual layer completion principle. Taking a test well in Shengli Oilfield as case study, nu-merical simulation of the technology has been carried out using Eclipse software. The results show that the water vol-ume fraction of oil well could be reduced from more than 98 % to 86 % after 1 year application. 9 years later, the water volume fraction rose only as high as 90%, and the cumulative oil production was up to 19 651 m^3. The re-sponse surface method （RSM） and Particle Swarm Optimization （PSO） were used to optimize the structure of the jet pipe. The optimization results show that the efficiency of the jet pipe is increased from 6. 6 % to 16. 1%, which realizes the purpose of effective development of bottom water reservoir. The results of study could provide technical support for the development of bottom water reservoir in China.

关 键 词：底水油藏 射流管柱 底水锥进 响应曲面法 单管采油 优化 排水采油 

分 类 号：TE934[石油与天然气工程—石油机械设备]