摘要
为了找出能耗异常的注水井,对油田注水井进行能耗评价。基于能量守恒定律,建立了单泵单井模型,推导出单井输入功率与单井单位注水量电耗的线性关系式,并据此提出直线截距法和单耗节能率法,分别对注水系统和注水井进行能耗评价。利用我国西北地区A油田与东北地区B油田的部分注水系统数据进行了验证。结果表明,通过理论分析并结合现场数据可知,单井输入功率与单井单位注水量电耗存在线性关系,直线斜率和截距综合反映了注水系统以及注水井的能耗情况。利用直线截距法对注水系统进行评价,评价结果与传统的系统效率法基本吻合。利用单耗节能率法对注水井进行能耗评价,可找出能耗异常的注水井,结合现场实际情况,分析原因并采取相应的措施,从而提高注水系统效率。
In order to find the injection wells with abnormal energy consumption,the energy consumption evaluation has been carried out for them.Based on the law of energy conservation,the model of single-pump corresponding to single-well is established,and the linear relationship between input power and power consumption per unit injection rate of single wells is deduced.Therefore,the straight line intercept method and the unit consumption energy saving rate method are put forward to evaluate the energy consumption of water injection systems and injection wells respectively.The results are verified by data from some water injection systems in oilfield-A in northwest and oilfield-B in northeast China.The results show that,according to theoretical analysis and field data,there is a linear relationship between the input power and the power consumption per unit of injection of a single well.The slope and intercept of straight line reflect the energy consumption of injection system and water injection well.The evaluation results of the injection system using the linear intercept method are basically consistent with the traditional system efficiency method.In addition,the evaluation of the energy consumption of injection wells by the unit consumption energy saving rate method can help to identify the injection wells with abnormal energy consumption.Combined with the actual situation on the site,the causes can be analyzed and the corresponding measures are taken to improve the efficiency of injection system.
作者
邹永莉
邓志强
李同翔
贺三
刘航
ZOU Yongli;DENG Zhiqiang;LI Tongxiang;HE San;LIU Hang(School of Petroleum and Natural Gas Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China;Chongqing Natural Gas Pipeline Co.,Ltd.,SINOPEC,Chongqing 408000,China)
出处
《油气藏评价与开发》
CSCD
2020年第5期98-102,共5页
Petroleum Reservoir Evaluation and Development
关键词
注水井
能耗评价
单泵单井模型
直线截距法
单耗节能率法
injection well
energy consumption evaluation
single pump single well model
linear intercept method
unit consumption energy saving rate method
