油田注水井能耗评价方法与应用

doi:10.13809/j.cnki.cn32-1825/te.2020.05.014

摘要/Abstract

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。

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

Abstract:

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.

Key words: injection well, energy consumption evaluation, single pump single well model, linear intercept method, unit consumption energy saving rate method

中图分类号:

TE357

邹永莉,邓志强,李同翔等. 油田注水井能耗评价方法与应用[J]. 油气藏评价与开发, 2020, 10(5): 98-102.

Yongli ZOU,Zhiqiang DENG,Tongxiang LI, et al. Energy consumption evaluation method of oilfield injection wells and its application[J]. Reservoir Evaluation and Development, 2020, 10(5): 98-102.

图/表 9

图1

图2

图3

图4

图5

图6

表1

表2

表3

参考文献 19

[1]	阮岩, 罗海龙, 程为彬, 等. 基于站效的注水系统能耗监测评价指标的建立[J]. 水泵技术, 2018,(3):1-5.
	RUAN Y, LUO H L, CHENG W B, et al. Establishment of monitoring and evaluation index of water injection system energy consumption based on station efficiency[J]. Pump Technology, 2018, (3):1-5.
[2]	李洪斌, 张承慧. 变频调速注水泵站优化控制[J]. 电气传动, 2002,32(4):28-31.
	LI H B, ZHANG C H. Optimization control of pump station for water injection system[J]. Electric Drive, 2002,32(4):28-31.
[3]	张承慧, 夏东伟, 程兆林, 等. 变频驱动注水系统效率优化问题的建模与控制[J]. 电工技术学报, 2003,18(6):42-47.
	ZHANG C H, XIA D W, CHEN Z L, et al. Modeling and control of frequency converter driving water injection system for efficiency optimization[J]. Transactions of China Electrotechnical Society, 2003,18(6):42-47.
[4]	梅永贵, 孙维超, 付国庆, 等. 提高二连油田注水系统效率技术[J]. 石油钻采工艺, 2006,28(S1):62-64.
	MEI Y G, SUN W C, FU G Q, et al. Study on improving the injection system efficiency in Erlian Oilfield[J]. Oil Drilling & Production Technology, 2006,28(S1):62-64.
[5]	李从信, 刘贤梅, 陈淼鑫. 大型注水系统的优化运行[J]. 石油学报, 2001,22(6):69-72.
	LI C X, LIU X M, CHEN M X. Operation optimization of large-scale water injection systems[J]. Acta Petrolei Sinica, 2001,22(6):69-72.
[6]	郭俊忠, 常玉连, 高胜. 注水系统运行方案优化研究[J]. 系统工程理论与实践, 2002,22(12):127-130.
	GUO J Z, CHANG Y L, GAO S. Study on optimized operation scheme of water injection system[J]. Journal of Oil and Gas Technology, 2002,22(12):127-130.
[7]	万春利. 采油三厂注水井注入能力分析评价技术的研究[D]. 大庆:大庆石油学院, 2010.
	WAN C L. Research on injection capacity analysis and evaluation technology of injection well in No. 3 oil production plant[D]. Daqing: Daqing Petroleum Institute, 2010.
[8]	孙冰, 陈曦. 注水井措施优先对节能效果的影响[J]. 油气田地面工程, 2008,27(5):37-38.
	SUN B, CHEN X. The influences on measure preference of water injection well to saving energy effect[J]. Oil-Gasfield Surface Engineering, 2008,27(5):37-38.
[9]	雷钧, 周杰, 濮新宏, 等. 注水井能效状况评价方法与分析[J]. 石油工业技术监督, 2019,35(5):23-26.
	LEI J, ZHOU J, PU X H, et al. Evaluation method and analysis of energy efficiency of water injection wells[J]. Technology Supervision in Petroleum Industry, 2019,35(5):23-26.
[10]	全国能源基础与管理标准化技术委员会, 全国石油天然气标准化技术委员会油气田节能节水分技术委员会. 油田生产系统能耗测试和计算方法:GB/T 33653—2017[S]. 北京:中国标准出版社, 2017: 9-13.
	SAC/TC20. Energy consumption test and calculation method for oilfield production system: GB/T 33653—2017[S]. Beijing: China Standards Press, 2017: 9-13.
[11]	陈立达, 杨济源, 王翀, 等. 基于单井单位注水量电耗的注水系统评价方法[J]. 石油石化节能, 2019,9(4):9-13.
	CHEN L D, YANG J Y, WANG C, et al. Water injection system evaluation method based on energy consumption per unit water injection capacity[J]. Energy Conservation in Petroleum & Petrochemical Industry, 2019,9(4):9-13.
[12]	常玉连, 高胜, 郭俊忠. 注水管网系统模型简化技术与计算方法研究[J]. 石油学报, 2001,22(2):95-100.
	CHANG Y L, GAO S, GUO J Z. A study on model simplification technology and calculation method of wa ter flooding pipeline network system[J]. Acta Petrolei Sinica, 2001,22(2):95-100.
[13]	李从信, 陈淼鑫, 郭福田, 等. 注水系统的计算方法[J]. 石油学报, 1998,19(3):120-124.
	LI C X, CHEN M X, GUO F T, et al. A method of hydraulic calculation for water injection systems[J]. Acta Petrolei Sinica, 2001,22(2):95-100.
[14]	马庆坤, 刘前进. 注水系统效率测算方法的探讨[J]. 石油钻采工艺, 1997,19(2):76-79.
	MA Q K, LIU Q J. Discussion on the calculation method of system efficiency of water flooding[J]. Oil Drilling & Production Technology, 1997,19(2):76-79.
[15]	PALSSON B, DAVIES D R, TODD A C , et al. The water injection process: a technical and economic integrated approach[J]. Chemical Engineering Research and Design, 2003,81(3):333-341.
[16]	程为彬, 吴九辅. 基于前置增压泵压力和流量可调性注水技术的应用[J]. 石油学报, 2005,26(4):115-118.
	CHENG W B, WU J F. Water flooding technology with changeable pressure and flux based on preceding booster[J]. Acta Petrolei Sinica, 2005,26(4):115-118.
[17]	王旱祥, 杨德伟. 油田注水地面枝状管网水力计算[J]. 中国石油大学学报:自然科学版, 2010,34(1):125-128.
	WANG H X, YANG D W. Hydraulic calculation of branch form pipe networks for oilfield above-ground water injection system[J]. Journal of China University of Petroleum(Edition of Natural Science), 2010,34(1):125-128.
[18]	王艳. 油田注水系统经济运行研究[D]. 大庆:大庆石油学院, 2010.
	WANG Y. Study on economic operation of water injection system in oilfield[D]. Daqing: Daqing Petroleum Institute, 2010.
[19]	全国石油天然气标准化技术委员会. 油田生产系统节能监测规范:GB/T 31453—2015[S].北京:中国标准出版社, 2015: 6-7.
	China Natural Gas Standardization Technology Committee. Monitoring and testing code for energy conservation of oilfield production system: GB/T 31453—2015[S]. Beijing: China Standards Press, 2015: 6-7.

注水系统	注水系统效率/%	直线截距/（kW·h·m^-3）	传统系统效率法评价结果	直线截距法评价结果
注水系统A1	37.58	2.207	不合格	不合格
注水系统 A2	61.77	0.506	节能	合格
注水系统A3	40.95	1.573	合格	合格
注水系统 A4	53.39	0.232	节能	节能
注水系统 A5	45.87	0.288	节能	节能
注水系统B1	44.89	0.640	合格	合格
注水系统 B2	41.28	2.001	合格	合格
注水系统B3	41.86	0.600	合格	合格
注水系统 B4	19.76	5.736	不合格	不合格
注水系统B5	27.89	2.450	不合格	不合格

注水系统	注水井	单耗节能率
注水系统A1	L61-38	-0.830 0
注水系统A2	H47-61	-1.810 2
注水系统A3	J10-55	-1.872 4
注水系统A4	H509-62	-0.745 1
注水系统A5	S16-24	-0.348 7

注水系统	注水井	单耗节能率
注水系统B1	J31-63	-6.095 4
注水系统B2	J63-11	-1.291 1
注水系统B3	Q29-25	-4.746 9
注水系统B4	J71-163	-2.244 0
注水系统B5	F43-29	-1.879 0