气举井效率与控制图研究  

STUDY ON GAS-LIFT WELL EFFICIENCY AND CONTROL CHART

作　　者：刘三威[1] 李颖川[2] 王海[1] 李小奇[1] 刘永辉[2] 

机构地区：[1]中国石化中原油田分公司采油一厂 [2]"油气藏地质及开发工程"国家重点实验室.西南石油学院

出　　处：《天然气工业》2004年第4期45-47,共3页Natural Gas Industry

基　　金：中国石油化工股份公司重点科技攻关项目"气举工艺及其配套技术研究"研究成果 (编号 :石工院 0 4 6 ) ;国家自然科学基金项目 (编号 :5 0 374 0 5 7)

摘　　要：按抽油机井效率的基本定义 ,气举井简化效率定义为有效功率与输入功率之比。结合气举井特点 ,建立了考虑井口剩余能量与地层产出混合物能量的气举井效率数学模型 ,包括注气与举升两部分。举升系统的有效功率考虑井口举升混合物所具有的剩余能量与位能增量 ,其能耗损失包括综合滑脱损失与摩阻能耗损失。结合气举井的经济效益分析 ,建立了气举井效率控制图 ,为气举系统科学化管理提供技术依据 ,也是进行实施提高气举系统效率措施的有效工具。According to the definition of the pumping well efficiency, the simplified efficiency of gas-lift wells is defined as the effective power and inputting power ratio. Based on the characteristics of gas-lift wells, the mathematical model of gas-lift well efficiency is established considering the residual energy in the well-head and the energy of the mixture from the reservoir. Gas-lift wells include 2 parts of gas injecting and lifting. The effective power of the lifting system comprises the residual energy and potential energy increment of the lifted mixture in the well-head. The energy loss includes the integrative slipping loss and the frictional power loss. With the economic benefit analysis of gas-lift wells, the efficiency control chart of gas wells is developed, which offers the scientific basis for managing gas-lift wells and the effective tool for improving the gas-lift efficiency.

关 键 词：气举井 有效功率 输入功率 地层 井口剩余能量 滑脱损失 摩阻能耗损失 气举采油法 

分 类 号：TE355[石油与天然气工程—油气田开发工程]