水驱曲线法在高含水油田上市储量评估中的应用
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摘要
指数递减法是评估上市储量的一种重要方法,然而随着油田进入高含水期,油井产量的自然递减逐步减缓,应用恒定递减率的指数递减法进行储量评估,与油田实际生产规律不符。为确定一种合理、准确评估高含水油田上市储量的方法,通过对水驱曲线法评估要点分析,以渤海Q油田为例,完成美国证券交易委员会(SEC)规则下水驱曲线法对未来储量的评估,并结合油田生产规律进行了评估方法的合理性论证。研究表明,水驱曲线法评估高含水油田上市储量更加合理、可靠,其产量递减规律更符合油田实际生产规律,评估结果更接近油田实际产量。首次在渤海Q油田应用水驱曲线法评估上市储量,Q油田上市净储量增加126. 88×10~4t(增加16. 5%),实现了上市储量的"正增长"。建议将水驱曲线法在高含水油田上市储量评估中进行推广应用,以期更好地完成高含水油田上市储量评估工作。
The exponential decline analysis is a crucial method for the listed reserve estimation. However,the natural production decline for the oil well gradually slows down as the oilfield development steps into high water-cut stage. The reserve estimation with exponential decline model and constant decline rate is usually inconsistent with the field production performance. The key elements of waterflooding curve was analyzed to identify a reasonable and accurate method to estimate the listed reserve of high water-cut oilfield. The Bohai Oilfield was taken to complete the future reserve estimation with waterflooding curve according to the US Securities and Exchange Commission rules. The field production performance was considered to demonstrate the validity of this reserve estimation method.Research indicates that the waterflooding curve method can provide a more reasonable and reliable listed reserve estimation for the high water-cut oilfield. The production decline performance is more consistent with the field production performance,which could supply a more reliable reserve estimation. The waterflooding curve method was firstly applied to estimate the listed reserve of Bohai Q Oilfield. The net listed reserve of the Q Oilfield was increased by 126.88×10~4 t( increased by 16. 5%),realizing the"positive growth"of listed reserve. The waterflooding curve method is suggested to be promoted and applied in the listed reserve estimation of high water-cut oilfield,which could improve the listed reserve estimation of high water-cut oilfield.
The exponential decline analysis is a crucial method for the listed reserve estimation. However,the natural production decline for the oil well gradually slows down as the oilfield development steps into high water-cut stage. The reserve estimation with exponential decline model and constant decline rate is usually inconsistent with the field production performance. The key elements of waterflooding curve was analyzed to identify a reasonable and accurate method to estimate the listed reserve of high water-cut oilfield. The Bohai Oilfield was taken to complete the future reserve estimation with waterflooding curve according to the US Securities and Exchange Commission rules. The field production performance was considered to demonstrate the validity of this reserve estimation method.Research indicates that the waterflooding curve method can provide a more reasonable and reliable listed reserve estimation for the high water-cut oilfield. The production decline performance is more consistent with the field production performance,which could supply a more reliable reserve estimation. The waterflooding curve method was firstly applied to estimate the listed reserve of Bohai Q Oilfield. The net listed reserve of the Q Oilfield was increased by 126.88×10~4 t( increased by 16. 5%),realizing the"positive growth"of listed reserve. The waterflooding curve method is suggested to be promoted and applied in the listed reserve estimation of high water-cut oilfield,which could improve the listed reserve estimation of high water-cut oilfield.
引文
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[14]陈元千,邹存友,张枫.水驱曲线法在油田开发评价中的应用[J].断块油气田,2011,18(6):769-771.
[15]张金庆,孙福街.相渗曲线和水驱曲线与水驱储量的关系[J].新疆石油地质,2010,31(6):629-631.
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[17]刘宗宾,刘英宪,张鑫,等.水驱曲线法在SEC上市储量评估中的应用分析[J].中国海上油气,2013,25(3):36-38.
[18]翟广福,苏彦春,李云鹏,等.合理选择水驱曲线直线段的新方法[J].中国海上油气,2009,21(3):173-175.
[19]喻秋兰,傅英,刘春志,等.SEC准则下改进水驱曲线法的推广应用[J].天然气与石油,2018,36(1):67-71.
[20]苏彦春,李廷礼.海上砂岩油田高含水期开发调整实践[J].中国海上油气,2016,28(3):83-90.
[2]尚明忠.用SEC标准进行储量评估应注意的主要问题[J].油气地质与采收率,2005,12(1):49-51.
[3]张玲,魏萍,肖席珍.SEC储量评估特点及影响因素[J].石油与天然气地质,2011,32(2):293-301.
[4]姜淑霞,宿亚仙,邓屹.SEC储量评估方法在普光气田上市储量评估中的应用[J].内蒙古石油化工,2011,37(8):286-288.
[5]李显路,龙卫江,余小红,等.河南油田SEC上市储量评估经济影响因素研究[J].石油实验地质,2012,34(5):518-521.
[6]翟中喜,魏萍.SEC上市储量评估技术要点与对策研究[J].石油天然气学报,2011,33(5):156-160.
[7]冮明立.上市储量分类及评估方法在大庆油田的应用[D].大庆:大庆石油学院,2009.
[8]黄学斌,曾小阳,杨园园.储量动态评估方法及影响因素分析[J].油气地质与采收率,2003,10(2):17-19.
[9]傅英,杨庆红,王凤荣,等.SEC准则下应用产量递减曲线法进行上市储量自评估[J].石油规划设计,2013,24(3):32-34.
[10]薛国勤,余强,赵创业,等.SEC准则递减曲线法在储量评估中的应用---以王集油田为例[J].石油实验地质,2012,34(5):531-534.
[11]刘志霞,刘桂玲,张素君.储量评估软件(OGRE)的开发与应用[J].断块油气田,2005,12(4):34-36.
[12]姚建.4种水驱特征曲线与Arps递减曲线的关系[J].新疆石油地质,2016,37(4):447-451.
[13]赵春明,罗宪波,别梦君.水驱油田产量递减规律研究[J].重庆科技学院学报(自然科学版),2017,19(1):35-38.
[14]陈元千,邹存友,张枫.水驱曲线法在油田开发评价中的应用[J].断块油气田,2011,18(6):769-771.
[15]张金庆,孙福街.相渗曲线和水驱曲线与水驱储量的关系[J].新疆石油地质,2010,31(6):629-631.
[16]姚君波,傅英,袁立,等.SEC规则下递减法与水驱曲线法储量评估应用研究[J].石化技术,2015,22(12):61-62.
[17]刘宗宾,刘英宪,张鑫,等.水驱曲线法在SEC上市储量评估中的应用分析[J].中国海上油气,2013,25(3):36-38.
[18]翟广福,苏彦春,李云鹏,等.合理选择水驱曲线直线段的新方法[J].中国海上油气,2009,21(3):173-175.
[19]喻秋兰,傅英,刘春志,等.SEC准则下改进水驱曲线法的推广应用[J].天然气与石油,2018,36(1):67-71.
[20]苏彦春,李廷礼.海上砂岩油田高含水期开发调整实践[J].中国海上油气,2016,28(3):83-90.