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在对蒸汽吞吐经济极限油汽比、新井经济极限初产量等开发技术政策界限分析研究的基础上 ,对“九五”期间孤岛油田稠油热采经济运行进行了系统分析 ,并总结了“九五”期间孤岛稠油热采降本增效的一些主要做法和经验。“九五”期间 ,共优化实施一次防砂实现二轮次注汽共 45井次 ,成功率 95 5 % ,年平均单井日产油由措施前 4 9t/d上升到措施后的13 4t/d ,累积增油 8 5 4× 10 4 t,减少防砂作业43井次 ,降低作业成本 12 90多万元
Based on the analysis of the limits of the oil-steam ratio of the economic limit of steam stimulation and the technical and policy limits for the initial production of economic limit of New Well, the economic operation of heavy oil thermal recovery in Gudao Oilfield during the Ninth Five-Year Plan period was systematically analyzed and the results of “ During the ”five“ period of heavy oil recovery thermal recovery of some of the major practices and experiences. During the ”Ninth Five-year" period, a total of 45 wells with two rounds of steam injection were optimized and implemented with a success rate of 95.5%. The annual single-well daily oil production rose from 49t / d before the measure to 134t / d after the measure , Cumulative increase of oil 8 5 4 × 10 4 t, reducing sand control operations 43 wells, reducing operating costs 12 90 million