基于倒置导流罩气液分离的电泵排水采气模拟与优化  

Simulation and optimization of drainage gas production by electrical submersible pump based on gas-liquid separation of inverted shroud

作　　者：王发清 张宝 秦德友[1,2,3,4] 易俊 王方智 余福春[5] WANG Faqing;ZHANG Bao;QIN Deyou;YI Jun;WANG Fangzhi;YU Fuchun(CNPC R&D Center for Ultra Deep Complex Oil and Gas Reservoir Exploration andDevelopment technology,Kuerle Xinjiang 841000,China;Xinjiang Uygur Autonomous RegionEngineering Research Center for Ultra Deep Complex Oil and Gas Reservoir Exploration and Development,Kuerle Xinjiang 841000,China;Xinjiang Key Laboratory of Ultra Deep Oiland Gas,Kuerle Xinjiang 841000,China;Oil and Gas Technology Research Institute,PetroChina Tarim Oilfield Company,Kuerle Xinjiang 841000,China;SINOPEC ShengliPetroleum Engineering Limited Tarim Company,Kuerle Xinjiang 841000,China)

机构地区：[1]中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆库尔勒841000 [2]新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆库尔勒841000 [3]新疆超深油气重点实验室,新疆库尔勒841000 [4]中国石油塔里木油田公司油气工艺研究院,新疆库尔勒841000 [5]中国石化胜利石油工程有限公司塔里木分公司,新疆库尔勒841000

出　　处：《石油化工应用》2024年第12期14-20,共7页Petrochemical Industry Application

基　　金：国家科技重大专项“深层-超深层油气成藏过程与勘探新领域”(2017ZX05008-004)。

摘　　要：电泵作为一种排水采气的人工举升工艺,会受到气体影响而发生气锁等故障,因而在产水气田还处于试验推广阶段。气液分离的效果对其高效运行至关重要,有必要对基于倒置导流罩的电泵机组运行进行模拟与优化。选取塔里木油田的一口产水气井,设计了利用倒置导流罩的电泵排水采气管柱结构,并用流行的商业软件进行了模拟。软件模型预测的泵入口、泵出口压力较好地拟合了现场传感器数据,进一步验证了倒置导流罩在气液分离方面的有效性。针对裸露于导流罩外的电机冷却不充分的问题,提出带毛细循环管的罐装电泵工艺并进行了可行性模拟。此研究成果对提高电泵在排水采气井中的应用具有一定的推广价值。As a dewatering gas production artificial lift,electrical submersible pump(ESP)is prone to gas interference,leading to such failures as gas-lock.Therefore,ESP usage is at a trial stage in gasfield with water production.Effective gas liquid separation is essential to its high efficiency operation.All this necessitates an detailed simulation and optimization on inverted shroud.Take a gas producer with water production as an example,this paper designs an inverted shroud to separate gas from well streams for ESP wells.Based on the congifurations of ESP tools string,a commercial software modell is built to simulation water removal and gas production.The predicted pump intake and discharge pressures from the simulations are in good agreement with measurements from downhole sensors,proving high efficiency in gas liquid separation with the inverted shroud.To better cooling for motors seated outside the shroud,a canned ESP with slim recirculation tube is proposed and checked its viability by utilizing the software.This research result has certain promotion value for improving the application of electrical submersible pump in drainage gas production well.

关 键 词：导流罩 罐装电泵 排水采气 软件模拟 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]