薄气层油藏组合举升方案设计与生产动态预测

发布时间：2018-04-30 18:38

本文选题：薄气层油藏 + 本井气　；参考：《断块油气田》2017年02期

【摘要】：海上A油田上部为薄凝析气层,下部为油层。考虑气层储量小、海上作业成本高,该油田采用油气层同时开采方式进行生产。借鉴气井电潜泵-气举组合排水采气的设计思路,文中设计了本井气气举-电潜泵组合举升方案,用气层气来辅助电潜泵采油。采用该方案可较单一电潜泵举升方案降低电机功率49.45~58.42 k W。另外,本井气气举不同于人工气举,其孔板阀过气量不能人为控制,为此,又研究开发了相关软件,并耦合管网模型,对油嘴尺寸、孔板阀过气量、累计过气量和储层压力等进行预测。研究成果的应用能够大大节省开采成本,智能预测生产动态,符合海上智能、安全、节能的开发理念。
[Abstract]:The upper part of offshore A oil field is thin condensate gas reservoir, and the lower part is oil layer. Considering the small gas reserves and high offshore operation cost, the oil and gas reservoir is produced simultaneously. Based on the design idea of drainage and gas recovery combined with electric submersible pump and gas lift in gas well, this paper designs the lifting scheme of gas lift combined with electric submersible pump in this paper, which is assisted by gas reservoir gas to produce oil by electric submersible pump. The proposed scheme can reduce the motor power by 49.4558.42kWcompared with the single electric-submersible pump lifting scheme. In addition, the gas lift in this well is different from manual gas lift, and the gas passing volume of orifice plate valve can not be artificially controlled. For this reason, the related software is developed, and the coupling pipe network model is developed to calculate the size of the nozzle and the gas flow rate of the orifice valve. The accumulative excess gas volume and reservoir pressure are predicted. The application of the research results can greatly save the mining cost, predict the production trends intelligently, and accord with the development concept of intelligence, safety and energy saving on the sea.
【作者单位】：长江大学石油工程学院;长江大学地球物理与石油资源学院;
【基金】：国家科技重大专项专题“深水钻完井及其救援井应用技术研究”(2011ZX05026-001-004)
【分类号】：TE53

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