聚合物驱不同可采储量评价方式对开发经济评价的影响
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摘要
大庆油田已实施聚合物驱开发多年,随着投入开发区块油层条件变差,开发效果也逐渐变差,如何准确评价聚合物驱油的经济效益是亟待解决的问题。通过分析聚合物驱不同可采储量评价方式下固定资产折耗率的变化情况,筛选出利用化学剂用量计算可采储量作为固定资产折耗率的计算方法。该方法在固定油价和变油价下的内部收益率、净现值等经济指标均优于一次性算足可采储量的方法,更加符合聚合物驱油的产能区块开发特点,能够客观评价产能区块经济效益。使用该方法可使油田储量资产保值或增值,避免错误投资决策发生,确保聚合物驱油技术顺利实施,释放更多的开发潜力。
For many years of the polymer flooding in Daqing Oilfield, with the deterioration of the reservoir conditions in the developed blocks, the development effects have gradually deteriorated as well, how to accurately evaluate the economic benefits of the polymer flooding is the urgent problem to be solved. Through the analyses of the change of the fixed-assets depreciation rate for different evaluating methods of the recoverable reserve by the polymer flooding, the method of calculating the recoverable reserve with the help of the chemical agent dosage was selected as the calculating method of the fixed-assets depreciation rate. This method is superior to the lump sum method of calculating the recoverable reserve in terms of both the internal rate of return and net present value under the conditions of fixed and variable oil prices, so it is more in line with the development characteristics of the productivity blocks by the polymer flooding and can objectively evaluate the economic benefit of the blocks. With the help of this method, the reserve assets of the oilfield can be preserved or increased, the wrong investment decision can be avoided, the smooth implementation of the polymer flooding technique can be ensured, and more development potential can be released.
For many years of the polymer flooding in Daqing Oilfield, with the deterioration of the reservoir conditions in the developed blocks, the development effects have gradually deteriorated as well, how to accurately evaluate the economic benefits of the polymer flooding is the urgent problem to be solved. Through the analyses of the change of the fixed-assets depreciation rate for different evaluating methods of the recoverable reserve by the polymer flooding, the method of calculating the recoverable reserve with the help of the chemical agent dosage was selected as the calculating method of the fixed-assets depreciation rate. This method is superior to the lump sum method of calculating the recoverable reserve in terms of both the internal rate of return and net present value under the conditions of fixed and variable oil prices, so it is more in line with the development characteristics of the productivity blocks by the polymer flooding and can objectively evaluate the economic benefit of the blocks. With the help of this method, the reserve assets of the oilfield can be preserved or increased, the wrong investment decision can be avoided, the smooth implementation of the polymer flooding technique can be ensured, and more development potential can be released.
引文
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[13]李斌,龙鸿波,刘从宁,等.综合评价在油田二次开发项目后评价中的应用:以高尚堡油田高5断块沙三段2+3油藏为例[J].油气地质与采收率,2014,21(4):71-74.LI Bin,LONG Hongbo,LIU Congning,et al.Application of comprehensive assessment of reservoir development to post evaluation of secondary development project:A case of Es32+3 oil reservoirs,Gao5 Fault Block,Gaoshangpu Oilfield[J].Petroleum Geology and Recovery Efficiency,2014,21(4):71-74.
[14]李斌,高正原.一种油田开发项目综合评价新方法[J].石油科技论坛,2013,32(6):35-38.LI Bin,GAO Zhengyuan.A new method for comprehensive assessment of oilfield development project[J].Oil Forum,2013,32(6):35-38.
[15]刘斌,易维容,梁生朗,等.SAGD项目经济评价模式探讨[J].特种油气藏,2013,20(1):143-145.LIU Bin,YI Weirong,LIANG Shenglang,et al.Study on the methods of economic evaluation for SAGD[J].Special Oil & Gas Reservoirs,2013,20(1):143-145.
[16]许艳,许勇,孔范帅.火驱采油经济评价方法研究[J].特种油气藏,2012,19(4):11-13.XU Yan,XU Yong,KONG Fanshuai.Research on economic evaluation method for fire flooding[J].Special Oil & Gas Reservoirs,2012,19(4):11-13.
[17]汪华,罗东坤,郑玉华.基于实物期权理论的油田开发方案优选模型[J].油气地质与采收率,2006,13(1):5-7.WANG Hua,LUO Dongkun,ZHENG Yuhua.Optimal model of oilfield development plan based on real options theory[J].Petroleum Geology and Recovery Efficiency,2006,13(1):5-7.
[2]赵国杰.技术经济学[M].天津:天津大学出版社,2001.ZHAO Guojie.Technique economics[M].Tianjin:Tianjin University Press,2001.
[3]赵兰水.油田产能建设工程方案整体经济评价方法[J].大庆石油学院学报,2007,31 (2 ):85-87,91.ZHAO Lanshui.Integrated economic evaluation method for oilfield productivity construction[J].Journal of Daqing Petroleum Institute,2007,31(2):85 -87,91.
[4]方艳君,李榕,周庆.大庆油田水驱转注聚合物经济界限[J].大庆石油地质与开发,2016,35(5):114-117.FANG Yanjun,LI Rong,ZHOU Qing.Economic limits of transferring into the polymer injection from the water flooding for Daqing Oilfield[J].Petroleum Geology & Oilfield Development in Daqing,2016,35(5):114-117.
[5]方艳君,孙洪国,侠利华,等.大庆油田三元复合驱层系优化组合技术经济界限[J].大庆石油地质与开发,2016,35(2):81-85.FANG Yanjun,SUN Hongguo,XIA Lihua,et al.Technical and economic limits for the optimization and combination of ASP series of the strata in Daqing Oilfield[J].Petroleum Geology & Oilfield Development in Daqing,2016,35(2):81-85.
[6]陈元千,周翠,张霞林,等.重质油藏注蒸汽开采预测经济可采储量和经济极限汽油比的方法:兼评国家行业标准的预测方法[J].油气地质与采收率,2015,22(5):1-6.CHEN Yuanqian,ZHOU Cui,ZHANG Xialin,et al.Methods for predicting economically recoverable reserves and economic limit of steam-oil ratio of heavy oil reservoir by steam flooding recovery:Comment on the prediction methods of the national industry standard[J].Petroleum Geology and Recovery Efficiency,2015,22(5):1-6.
[7]吴家文,左松林,赵秀娟,等.喇嘛甸中块层系井网调整技术经济界限[J].油气地质与采收率,2015,22(5):113-116.WU Jiawen,ZUO Songlin,ZHAO Xiujuan,et al.Technical and economic boundaries on formation and well pattern adjustment in Lazhong Block[J].Petroleum Geology and Recovery Efficiency,2015,22(5):113-116.
[8]唐林,赵长虹,王丽,等.确定水驱油藏水侵量和经济可采储量的新方法[J].油气地质与采收率,2014,21(5):84-86.TANG Lin,ZHAO Changhong,WANG Li,et al.A new method for determining water influx and economic recoverable reserves in water drive oil reservoir[J].Petroleum Geology and Recovery Efficiency,2014,21(5):84-86.
[9]卢广钦.SEC剩余经济可采储量替代率与产量的关系及影响因素[J].油气地质与采收率,2013,20(3):60-64.LU Guangqin.Study on the relationship and influencing factors of replacement ratio and output on SEC remaining economic recoverable reserves[J].Petroleum Geology and Recovery Efficiency,2013,20(3):60-64.
[10]张付兴.SEC剩余经济可采储量影响因素分析[J].油气地质与采收率,2013,20(3):95-97.ZHANG Fuxing.Analysis on influencing factors of SEC reserves evaluation[J].Petroleum Geology and Recovery Efficiency,2013,20(3):95-97.
[11]中国石油天然气股份有限公司.油田开发建设项目后评价[M].北京:石油工业出版社,2005:16-21.PetroChina Company Limited.Post-evaluation of oilfield development and construction projects[M].Beijing:Petroleum Industry Press,2005:16-21.
[12]苏继洪,石忠仁,王力娜,等.油田调整期增加可采储量的评价方法探讨与认识[J].石油勘探与开发,1995,22(6):88-89.SU Jihong,SHI Zhongren,WANG Lina,et al.A discussion of the techniques used for evaluating the increase of recoverable reserves in the adjustment stage of oil field development[J].Petroleum Exploration and Development,1995,22(6):88-89.
[13]李斌,龙鸿波,刘从宁,等.综合评价在油田二次开发项目后评价中的应用:以高尚堡油田高5断块沙三段2+3油藏为例[J].油气地质与采收率,2014,21(4):71-74.LI Bin,LONG Hongbo,LIU Congning,et al.Application of comprehensive assessment of reservoir development to post evaluation of secondary development project:A case of Es32+3 oil reservoirs,Gao5 Fault Block,Gaoshangpu Oilfield[J].Petroleum Geology and Recovery Efficiency,2014,21(4):71-74.
[14]李斌,高正原.一种油田开发项目综合评价新方法[J].石油科技论坛,2013,32(6):35-38.LI Bin,GAO Zhengyuan.A new method for comprehensive assessment of oilfield development project[J].Oil Forum,2013,32(6):35-38.
[15]刘斌,易维容,梁生朗,等.SAGD项目经济评价模式探讨[J].特种油气藏,2013,20(1):143-145.LIU Bin,YI Weirong,LIANG Shenglang,et al.Study on the methods of economic evaluation for SAGD[J].Special Oil & Gas Reservoirs,2013,20(1):143-145.
[16]许艳,许勇,孔范帅.火驱采油经济评价方法研究[J].特种油气藏,2012,19(4):11-13.XU Yan,XU Yong,KONG Fanshuai.Research on economic evaluation method for fire flooding[J].Special Oil & Gas Reservoirs,2012,19(4):11-13.
[17]汪华,罗东坤,郑玉华.基于实物期权理论的油田开发方案优选模型[J].油气地质与采收率,2006,13(1):5-7.WANG Hua,LUO Dongkun,ZHENG Yuhua.Optimal model of oilfield development plan based on real options theory[J].Petroleum Geology and Recovery Efficiency,2006,13(1):5-7.