萨中开发区各类油层剩余油潜力与动用状况评价
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摘要
目前,我国大庆油田对二、三类油层的开采越来越重视,因为这部分油层的剩余油较多,潜力较大。因此,加强各类油层的剩余油潜力、动用状况以及分布规律的研究,对老油田调整开发方案、制定增产措施具有重要的指导意义。纵观当前剩余油研究的相关学科前沿,以开发地质学和油藏工程学为指导,综合应用地质、地震、钻井、测井、取心、及开发动态等资料研究高含水期各类油层的剩余油潜力及动用状况将成为必然趋势。
本文以大庆油田萨中开发区为例,首先考虑影响剩余油分布的因素,利用多级模糊综合评价原理,对典型区块进行剩余油潜力评价;然后分析各类油层的相对渗透率曲线特征、曲线形态的形成机理及特点,结合welge方程及乙型水驱规律曲线建立剩余油潜力评价模型,给出评价指标体系,并根据所建模型分析不同类型油层的动用状况及可动油潜力。最后,针对目前的开发现状,为了更好的对非主力油层进行剩余油挖潜,结合数值模拟手段,从理论上确定了现有井网二、三类油层的合理驱动压力梯度。
通过论文研究,探索了一套以高含水期剩余油潜力评价为目标的开发地质、油藏工程综合评价方法,将定性的“地质静态”与定量的“开发动态”有机结合起来,为水驱砂岩油田高效开发及高含水期剩余油分布规律研究提供实践经验和理论依据。
At present, Daqing oil field pays more and more attention to the recovery of second and third type reservoirs, because they have more remaining oil and greater potential. Therefore, the strengthening of study on remaining oil potential, producing condition and distribution of various reservoirs, has important significance for the old oil field to adjust the development plan and develop measures to increase production. Throughout the current science frontier related to the research of remaining oil, research of remaining oil potential and producing condition of various reservoirs in high water cut stage, guided by development geology and reservoir engineering and integrated application of geological, seismic, drilling, logging, coring and the development dynamics information, will become an inevitable trend.
In this paper, take Sazhong development area of Daqing oilfield for example, consider the factors that affect the distribution of remaining oil first. Evaluate the remaining oil potential in the typical block by using multi-grade fuzzy comprehensive evaluation principle. And then analyze the relative permeability curves characters, the formation mechanisms and characteristics of the curve shape of various reservoirs. Establish the evaluation model of remaining oil potential combining with Welge equation and the law of water displacement curve B. Give the evaluation index system and analyze the producing condition and movable oil potential of various reservoirs according to the model established. Finally, in view of the current development status, in order to better tap the remaining oil in non major reservoirs, define reasonable driving pressure gradient of existing well pattern of the second and third type reservoirs combining with numerical simulation.
Through the research in this paper, explore a set of comprehensive evaluation method with both development geology and reservoir engineering aimed at the evaluation of remaining oil potential in high water cut stage. Bond the qualitative "geological static" and quantitative "development dynamic" together to provide practical experience and theoretical basis for the effective water flooding development of sandstone oil field and the research of the distribution of remaining oil in high water cut stage.
本文以大庆油田萨中开发区为例,首先考虑影响剩余油分布的因素,利用多级模糊综合评价原理,对典型区块进行剩余油潜力评价;然后分析各类油层的相对渗透率曲线特征、曲线形态的形成机理及特点,结合welge方程及乙型水驱规律曲线建立剩余油潜力评价模型,给出评价指标体系,并根据所建模型分析不同类型油层的动用状况及可动油潜力。最后,针对目前的开发现状,为了更好的对非主力油层进行剩余油挖潜,结合数值模拟手段,从理论上确定了现有井网二、三类油层的合理驱动压力梯度。
通过论文研究,探索了一套以高含水期剩余油潜力评价为目标的开发地质、油藏工程综合评价方法,将定性的“地质静态”与定量的“开发动态”有机结合起来,为水驱砂岩油田高效开发及高含水期剩余油分布规律研究提供实践经验和理论依据。
At present, Daqing oil field pays more and more attention to the recovery of second and third type reservoirs, because they have more remaining oil and greater potential. Therefore, the strengthening of study on remaining oil potential, producing condition and distribution of various reservoirs, has important significance for the old oil field to adjust the development plan and develop measures to increase production. Throughout the current science frontier related to the research of remaining oil, research of remaining oil potential and producing condition of various reservoirs in high water cut stage, guided by development geology and reservoir engineering and integrated application of geological, seismic, drilling, logging, coring and the development dynamics information, will become an inevitable trend.
In this paper, take Sazhong development area of Daqing oilfield for example, consider the factors that affect the distribution of remaining oil first. Evaluate the remaining oil potential in the typical block by using multi-grade fuzzy comprehensive evaluation principle. And then analyze the relative permeability curves characters, the formation mechanisms and characteristics of the curve shape of various reservoirs. Establish the evaluation model of remaining oil potential combining with Welge equation and the law of water displacement curve B. Give the evaluation index system and analyze the producing condition and movable oil potential of various reservoirs according to the model established. Finally, in view of the current development status, in order to better tap the remaining oil in non major reservoirs, define reasonable driving pressure gradient of existing well pattern of the second and third type reservoirs combining with numerical simulation.
Through the research in this paper, explore a set of comprehensive evaluation method with both development geology and reservoir engineering aimed at the evaluation of remaining oil potential in high water cut stage. Bond the qualitative "geological static" and quantitative "development dynamic" together to provide practical experience and theoretical basis for the effective water flooding development of sandstone oil field and the research of the distribution of remaining oil in high water cut stage.
引文
[1]高博禹.高含水期油藏剩余油预测方法研究[D].北京:中国石油大学,2005,1~5.
[2]张德芳,孙继伟,唐磊,等.注水开发油田特高含水期剩余油潜力评价[J].河南石油,2001,l5(6):23～24.
[3] Chun Huh, SPE, and Gary A. Pope, SPE, The University of Texas at Austin. Residual Oil Saturation From Polymer Floods: Laboratory Measurements and Theoretical Interpretation.SPE,2008,113417-MS.
[4]刘钰铭,侯加根,付素英,薛建军,刘显贺.高含水油藏开发后期剩余油饱和度定量描述[J].石油天然气学报,2009,(01):267～270.
[5]付德奎,冯振雨,曲金明,等.剩余油分布研究现状及展望[J].断块油气田,2007,14(2):39～41.
[6]李玉梅.水驱砂岩油藏高含水期剩余油综合潜力评价方法研究[D].西南石油学院, 2003.
[7]耿站立,姜汉桥,陈民锋,孙梦茹,曾玉祥.高含水期油藏剩余油潜力定量化表征新方法[J].油气地质与采收率,2007,(06):100~102.
[8]ВыгодскийЕМ.Экспертнаяоценкаформзалеганияостаточнойнефтивпласте[J] .НефтъИгаз, 1984, 4 (8) :18~22
[9]高博禹,彭仕宓,王建波.剩余油形成与分布的研究及发展趋势[J].特种油气藏,2004,11(4):7~11.
[10]王继祥.开发区微构造研究方法及应用[M].东营:石油大学出版社,1995,29~31.
[11]赵彦超,汪立君,彭冬玲.油层微构造在剩余油研究中的应用[J].新疆石油学院学报,2002,14(3):41~44.
[12]肖鸿雁,王萍,杜启振,王岩.储层微型构造与剩余油分布关系研究[J].断块油气田,2003,10(4):8~11.
[13]何琰,余红,吴念胜.微构造对剩余油分布的影响[J].西南石油学院学报,2000,22(1):24~35.
[14]何琰,吴念胜.三维地震在油藏挖潜中的应用[J].西南石油学院学报,1999,21(2):16~19.
[15]杨勤勇,钟炜.油气田开发中的四维地震技术[J].石油物探,1999,38(3):50~57.
[16]Pullin N, Matthews L, Hirsche K. Techniques applied to obtain very high resolution 3D seismic imaging at an Athabasca for sands thermal pilot [J]. The Leading Edge, 1987, 6(12):10~15.
[17]Robertson J D. Reservoir management using 3D seismic data [J]. The Leading Edge, 1989, 8(2):25~31.
[18]高博禹,彭仕宓,陈烨菲.储层动态流动单元及剩余油分布规律[J].吉林大学学报(地球科学版),2005,35(2):182~187.
[19]Ebanks W J Jr, Flow unit conception-integrated approach to reservoir description for engineering [J]. AAPG Annual Meeting, AAPG Bulletin, 1987, 71(5):551~552.
[20]李阳.储层流动单元模式及剩余油分布规律[J].石油学报,2003,24(3):52~55.
[21]Guangming Ti. Use of flow unit as a tool for reservoir description: a case study [J]. SPE Formation Evaluation, 1995, 10(2):122~128.
[22]刘吉余.流动单元研究进展[J].地球科学进展,2000,15(3):303~306.
[23]熊德智,徐静.低侵入取心技术研究[J].钻采工艺,1999,22(5):9~13.
[24]戴跃进,聂锐利,李洪娟.保压冷冻岩心天然气分析方法[J].大庆石油地质与开发,1996,15(3):73~76.
[25]李开荣,薄万顺.密闭取心技术的新进展[J].石油钻采工艺,1998,20(2):36~38.
[26]许书堂,杨玉娥,王志萍,刘荣华.一种新的海绵取心技术[J].断块油气田,1998,5(3):68~70.
[27]李兴国.应用微型构造和储层沉积微相研究油层剩余油分布[J].油气采收率技术,1994,1(1):68~80.
[28]鲁洪江,柳强,邢正岩,冯文光,刘兴德.砂岩油藏剩余油分布地质研究[J].成都理工学院学报,1999,26(3):270~272.
[29]孙义梅,陈程.储集层沉积微相对剩余油分布的控制[J].新疆石油地质,2002,23(3):205~207.
[30]陈元,刘中云,曾庆辉.储层横向相变对剩余油分布的影响[J].油气采收率技术,1998,5(1):45~50.
[31]吴胜和,马晓芬,王仲林.温米油田开发阶段高分辨率层序地层学研究[J].石油学报,1999,20(5):33~38.
[32]尹太举,张昌民,赵红静,樊中海,李中超.依据高分辨率层序地层学进行剩余油分布预测[J].石油勘探与开发,2001,28(4):79~82.
[33]陈建达,李莉.高分辨率层序地层学在油田开发中的应用[J].江汉石油职工大学学报,2002,15(3):15~17.
[34]宋考平,宋洪才,吴文祥.油藏数值模拟理论基础[M].北京:石油工业出版社,1996,1~8.
[35]潘举玲,黄尚军,祝杨等.油藏数值模拟技术现状与发展趋势[J].油气地质与采收率,2002,9(4):69~71.
[36]于东海等.多层系油藏剩余油分布的精细数值模拟技术[J].油气地质与采收率,2002,10.
[37]郭平,冉新权,徐艳梅,黄伟岗.剩余油分布研究方法[M].石油工业出版社.2004.12.
[38]谭廷栋.水驱油田剩余油的测井技术[J].测井技术,1995,9(6):421~427.
[39]耿全喜,钟兴水.油田开发测井技术[M].东营:石油大学出版社,1992,25~35.
[40]陈四平,李木元,仲艳华.剩余油饱和度测井技术进展[J].2004,28(1):7~10.
[41]王利美,张国萍,胡艳霞,陈永浩.井间示踪剂大孔道识别及剩余油饱和度分布技术[J].断块油气田,2003,10(4):72~73.
[42]郭宝玺,王秀琴,王喜梅.井间示踪监测确定水驱油藏剩余油饱和度技术应用[J].测井技术,2005,29(3):240~243.
[43]杨二龙,宋考平,王梅,崔香花.井间示踪技术求地层参数和剩余油饱和度[J].油田化学,2007,(01):9~11.
[44]赵国瑜.井间示踪剂技术在油田生产中的应用[J].石油勘探与开发,1999,26(4):92~95.
[45]薛中天,李论,呼舜兴,刘金堂.油田注水开发动态分析系统方法在桥29块的应用[J].断块油气田,1997,4(4):30~33.
[46]王凤琴,薛中天.利用系统分析方法评价注水开发油田的水驱效果[J].断块油气田,1998,5(3):39~42.
[47]高兴军,于兴河,李胜利,王庆如,梁卫.利用神经网络技术预测剩余油分布[J].石油学报,2005,26(3):60~63.
[48]刘波,杜庆龙,王良书,刘绍文.利用神经网络方法确定薄差层剩余油的分布[J].高校地质学报,2002,8(2):199~204.
[49]宋子齐,谭成仟,吴少波,杨贵凯,靳晓杰.灰色系统与神经网络技术在水淹层测井评价中的应用[J].1999,26(3):90~92.
[50]唐文忠,陈彬,翟雨阳,刘志远,黄华.深度延迟人工神经网络判别水淹程度[J].石油与天然气地质,2001,22(3):249~252.
[51]吴畏.剩余油饱和度的确定——开发测井和试井方法[J].重庆科技学院学报(自然科学版),2007,(01):9~12.
[52]杨勇.剩余油分布规律影响因素分析研究[J].石油天然气学报,2009,(01):100~103.
[53]魏纪德,杜庆龙,林春明,张同意.大庆油田剩余油的影响因素及分布[J].石油与天然气地质,2001,22(1):57~59.
[54]俞启泰.采用多级模糊综合评判法对剩余油潜力定量评价[J].地球科学与环境学报,2004,26(2):39~40.
[55]唐海,黄炳光,李道轩,曾凡华.模糊综合评判法确定油藏水驱开发潜力[J].石油勘探与开发,2002,29 (2) :97~99.
[56]王国先,谢建勇,李建良,谭文东等.储集层相对渗透率曲线形态及开采特征[J].新疆石油地质2004,(3):301~304.
[57]俞启泰.几种重要水驱特征曲线的油水渗流特征[J].石油学报,1999,21(1):57~60.
[58]陈涛平,胡靖邦.石油工程,石油工业出版,2004.3:473~477.
[59]徐文熙,李秀生,田冷,等.油水相对渗透率曲线在特高含水油藏中的应用[J].内蒙古石油化工,2006(11):114~115.
[60]陈元千.相对渗透率曲线和毛管压力曲线的标准化方法[J].石油实验地质,1990,12(1):65~69.
[61]张继成,宋考平.相对渗透率特征曲线及其应用[J].石油学报,2007,28(4):104~107.
[62]陈元千.水驱曲线法的分类、对比与评价[J].新疆石油地质,l994,l5(4):349~355.
[63]陈元千.水驱体积波及系数变化关系的研究[J].油气地质与采收率,2001,8(6):49~51.
[2]张德芳,孙继伟,唐磊,等.注水开发油田特高含水期剩余油潜力评价[J].河南石油,2001,l5(6):23～24.
[3] Chun Huh, SPE, and Gary A. Pope, SPE, The University of Texas at Austin. Residual Oil Saturation From Polymer Floods: Laboratory Measurements and Theoretical Interpretation.SPE,2008,113417-MS.
[4]刘钰铭,侯加根,付素英,薛建军,刘显贺.高含水油藏开发后期剩余油饱和度定量描述[J].石油天然气学报,2009,(01):267～270.
[5]付德奎,冯振雨,曲金明,等.剩余油分布研究现状及展望[J].断块油气田,2007,14(2):39～41.
[6]李玉梅.水驱砂岩油藏高含水期剩余油综合潜力评价方法研究[D].西南石油学院, 2003.
[7]耿站立,姜汉桥,陈民锋,孙梦茹,曾玉祥.高含水期油藏剩余油潜力定量化表征新方法[J].油气地质与采收率,2007,(06):100~102.
[8]ВыгодскийЕМ.Экспертнаяоценкаформзалеганияостаточнойнефтивпласте[J] .НефтъИгаз, 1984, 4 (8) :18~22
[9]高博禹,彭仕宓,王建波.剩余油形成与分布的研究及发展趋势[J].特种油气藏,2004,11(4):7~11.
[10]王继祥.开发区微构造研究方法及应用[M].东营:石油大学出版社,1995,29~31.
[11]赵彦超,汪立君,彭冬玲.油层微构造在剩余油研究中的应用[J].新疆石油学院学报,2002,14(3):41~44.
[12]肖鸿雁,王萍,杜启振,王岩.储层微型构造与剩余油分布关系研究[J].断块油气田,2003,10(4):8~11.
[13]何琰,余红,吴念胜.微构造对剩余油分布的影响[J].西南石油学院学报,2000,22(1):24~35.
[14]何琰,吴念胜.三维地震在油藏挖潜中的应用[J].西南石油学院学报,1999,21(2):16~19.
[15]杨勤勇,钟炜.油气田开发中的四维地震技术[J].石油物探,1999,38(3):50~57.
[16]Pullin N, Matthews L, Hirsche K. Techniques applied to obtain very high resolution 3D seismic imaging at an Athabasca for sands thermal pilot [J]. The Leading Edge, 1987, 6(12):10~15.
[17]Robertson J D. Reservoir management using 3D seismic data [J]. The Leading Edge, 1989, 8(2):25~31.
[18]高博禹,彭仕宓,陈烨菲.储层动态流动单元及剩余油分布规律[J].吉林大学学报(地球科学版),2005,35(2):182~187.
[19]Ebanks W J Jr, Flow unit conception-integrated approach to reservoir description for engineering [J]. AAPG Annual Meeting, AAPG Bulletin, 1987, 71(5):551~552.
[20]李阳.储层流动单元模式及剩余油分布规律[J].石油学报,2003,24(3):52~55.
[21]Guangming Ti. Use of flow unit as a tool for reservoir description: a case study [J]. SPE Formation Evaluation, 1995, 10(2):122~128.
[22]刘吉余.流动单元研究进展[J].地球科学进展,2000,15(3):303~306.
[23]熊德智,徐静.低侵入取心技术研究[J].钻采工艺,1999,22(5):9~13.
[24]戴跃进,聂锐利,李洪娟.保压冷冻岩心天然气分析方法[J].大庆石油地质与开发,1996,15(3):73~76.
[25]李开荣,薄万顺.密闭取心技术的新进展[J].石油钻采工艺,1998,20(2):36~38.
[26]许书堂,杨玉娥,王志萍,刘荣华.一种新的海绵取心技术[J].断块油气田,1998,5(3):68~70.
[27]李兴国.应用微型构造和储层沉积微相研究油层剩余油分布[J].油气采收率技术,1994,1(1):68~80.
[28]鲁洪江,柳强,邢正岩,冯文光,刘兴德.砂岩油藏剩余油分布地质研究[J].成都理工学院学报,1999,26(3):270~272.
[29]孙义梅,陈程.储集层沉积微相对剩余油分布的控制[J].新疆石油地质,2002,23(3):205~207.
[30]陈元,刘中云,曾庆辉.储层横向相变对剩余油分布的影响[J].油气采收率技术,1998,5(1):45~50.
[31]吴胜和,马晓芬,王仲林.温米油田开发阶段高分辨率层序地层学研究[J].石油学报,1999,20(5):33~38.
[32]尹太举,张昌民,赵红静,樊中海,李中超.依据高分辨率层序地层学进行剩余油分布预测[J].石油勘探与开发,2001,28(4):79~82.
[33]陈建达,李莉.高分辨率层序地层学在油田开发中的应用[J].江汉石油职工大学学报,2002,15(3):15~17.
[34]宋考平,宋洪才,吴文祥.油藏数值模拟理论基础[M].北京:石油工业出版社,1996,1~8.
[35]潘举玲,黄尚军,祝杨等.油藏数值模拟技术现状与发展趋势[J].油气地质与采收率,2002,9(4):69~71.
[36]于东海等.多层系油藏剩余油分布的精细数值模拟技术[J].油气地质与采收率,2002,10.
[37]郭平,冉新权,徐艳梅,黄伟岗.剩余油分布研究方法[M].石油工业出版社.2004.12.
[38]谭廷栋.水驱油田剩余油的测井技术[J].测井技术,1995,9(6):421~427.
[39]耿全喜,钟兴水.油田开发测井技术[M].东营:石油大学出版社,1992,25~35.
[40]陈四平,李木元,仲艳华.剩余油饱和度测井技术进展[J].2004,28(1):7~10.
[41]王利美,张国萍,胡艳霞,陈永浩.井间示踪剂大孔道识别及剩余油饱和度分布技术[J].断块油气田,2003,10(4):72~73.
[42]郭宝玺,王秀琴,王喜梅.井间示踪监测确定水驱油藏剩余油饱和度技术应用[J].测井技术,2005,29(3):240~243.
[43]杨二龙,宋考平,王梅,崔香花.井间示踪技术求地层参数和剩余油饱和度[J].油田化学,2007,(01):9~11.
[44]赵国瑜.井间示踪剂技术在油田生产中的应用[J].石油勘探与开发,1999,26(4):92~95.
[45]薛中天,李论,呼舜兴,刘金堂.油田注水开发动态分析系统方法在桥29块的应用[J].断块油气田,1997,4(4):30~33.
[46]王凤琴,薛中天.利用系统分析方法评价注水开发油田的水驱效果[J].断块油气田,1998,5(3):39~42.
[47]高兴军,于兴河,李胜利,王庆如,梁卫.利用神经网络技术预测剩余油分布[J].石油学报,2005,26(3):60~63.
[48]刘波,杜庆龙,王良书,刘绍文.利用神经网络方法确定薄差层剩余油的分布[J].高校地质学报,2002,8(2):199~204.
[49]宋子齐,谭成仟,吴少波,杨贵凯,靳晓杰.灰色系统与神经网络技术在水淹层测井评价中的应用[J].1999,26(3):90~92.
[50]唐文忠,陈彬,翟雨阳,刘志远,黄华.深度延迟人工神经网络判别水淹程度[J].石油与天然气地质,2001,22(3):249~252.
[51]吴畏.剩余油饱和度的确定——开发测井和试井方法[J].重庆科技学院学报(自然科学版),2007,(01):9~12.
[52]杨勇.剩余油分布规律影响因素分析研究[J].石油天然气学报,2009,(01):100~103.
[53]魏纪德,杜庆龙,林春明,张同意.大庆油田剩余油的影响因素及分布[J].石油与天然气地质,2001,22(1):57~59.
[54]俞启泰.采用多级模糊综合评判法对剩余油潜力定量评价[J].地球科学与环境学报,2004,26(2):39~40.
[55]唐海,黄炳光,李道轩,曾凡华.模糊综合评判法确定油藏水驱开发潜力[J].石油勘探与开发,2002,29 (2) :97~99.
[56]王国先,谢建勇,李建良,谭文东等.储集层相对渗透率曲线形态及开采特征[J].新疆石油地质2004,(3):301~304.
[57]俞启泰.几种重要水驱特征曲线的油水渗流特征[J].石油学报,1999,21(1):57~60.
[58]陈涛平,胡靖邦.石油工程,石油工业出版,2004.3:473~477.
[59]徐文熙,李秀生,田冷,等.油水相对渗透率曲线在特高含水油藏中的应用[J].内蒙古石油化工,2006(11):114~115.
[60]陈元千.相对渗透率曲线和毛管压力曲线的标准化方法[J].石油实验地质,1990,12(1):65~69.
[61]张继成,宋考平.相对渗透率特征曲线及其应用[J].石油学报,2007,28(4):104~107.
[62]陈元千.水驱曲线法的分类、对比与评价[J].新疆石油地质,l994,l5(4):349~355.
[63]陈元千.水驱体积波及系数变化关系的研究[J].油气地质与采收率,2001,8(6):49~51.