辽河牛心坨油田化学驱改善开发效果研究
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摘要
论文以牛心坨油田的地质特征为基础,针对牛心坨油田水驱开发中面临的问题,通过室内物理模拟实验,进行不同驱油体系对牛心坨油田的改善开发效果研究,进而简单结合调剖,研究不同驱油体系对牛心坨油田的驱油效果。
本文通过室内实验,筛选出了适合牛心坨油田的聚合物分子量及其浓度,实验结果表明:聚合物浓度在500—1500mg/L,970×10~4分子量的聚合物与渗透率为100md的岩心具有良好的匹配性,500×10~4分子量的聚合物与渗透率为50md的岩心具有良好的匹配性。筛选出了具有超低界面张力的表面活性剂,得出:在表面活性剂浓度在0.2%-0.4%范围内,HLX型表面活性剂不论是单独体系还是与聚合物进行复配都无法使油水界面张力达到10~(-3)mN/m,而单独B型表面活性剂和B型表面活性剂与所选聚合物复配在55℃—70℃,油水间界面张力均在10~(-3)mN/m数量级以内。
本文着重研究不同裂缝长度、不同变异系数对聚合物驱和聚合物/表面活性剂二元复合驱驱油效果的影响,并在此基础上评价调剖剂对驱油效果的影响。研究结果表明:两种驱油体系的化学驱和总采收率均随裂缝长度的增加而增加;当变异系数从0.6升高到0.85时,化学驱采收率升高,但是总采收率随着变异系数的增大而减小;在其它条件不变的情况下,注入调剖剂的驱油体系化学驱和总采收率较未注入调剖剂的驱油体系均有所提高,且结合调剖的聚/表二元复合体系驱油效果最好,结合调剖的聚合物驱次之。
Based on the geologic feature and the problems faced in water flooding in Niuxintuo Oilfield, we had done the research on displacement efficiency of different flooding systems through indoor physical modeling experiments.
We had selected the proper molecular weight and concentration of polymer through experiments, and the results showed that 970×10~4 of molecular weight and the concentration between 500-1500mg/L was matched well with the cores of 100mD, while 500×10~4 of molecular weight was matched well with the cores of 50mD. Selected surfactants formed ultra-low interfacial tension, the range from 0.2% to 0.4%, the compound systems with HLX surfactant and polymer could not form the ultra-low interfacial tension with oil, even without surfactant. While B kind surfactant system and it with polymer compound system could form the ultra-low interfacial tension between 55℃and 70℃.
In the paper, we had particularly done the research on influences of polymer flooding and binary compound flooding on the displacement efficiency in artificial cores with various fracture length and coefficient of variation and based on which evaluated the influence of profile control agent on the displacement efficiency.
The results showed that the chemical recovery and total recovery of two flooding systems increased as the fracture length increased. The chemical recovery increased as coefficient of variation ranged from 0.6 to 0.85, while total recovery discreased. Adding the profile control agent systems can enhance more recovery than that without it under the same condition. In total, the experiments carried on the heterogeneous cores showed that polymer-surfactant system had better displacement efficiency than polymer did, while the surfactant is the worst.
本文通过室内实验,筛选出了适合牛心坨油田的聚合物分子量及其浓度,实验结果表明:聚合物浓度在500—1500mg/L,970×10~4分子量的聚合物与渗透率为100md的岩心具有良好的匹配性,500×10~4分子量的聚合物与渗透率为50md的岩心具有良好的匹配性。筛选出了具有超低界面张力的表面活性剂,得出:在表面活性剂浓度在0.2%-0.4%范围内,HLX型表面活性剂不论是单独体系还是与聚合物进行复配都无法使油水界面张力达到10~(-3)mN/m,而单独B型表面活性剂和B型表面活性剂与所选聚合物复配在55℃—70℃,油水间界面张力均在10~(-3)mN/m数量级以内。
本文着重研究不同裂缝长度、不同变异系数对聚合物驱和聚合物/表面活性剂二元复合驱驱油效果的影响,并在此基础上评价调剖剂对驱油效果的影响。研究结果表明:两种驱油体系的化学驱和总采收率均随裂缝长度的增加而增加;当变异系数从0.6升高到0.85时,化学驱采收率升高,但是总采收率随着变异系数的增大而减小;在其它条件不变的情况下,注入调剖剂的驱油体系化学驱和总采收率较未注入调剖剂的驱油体系均有所提高,且结合调剖的聚/表二元复合体系驱油效果最好,结合调剖的聚合物驱次之。
Based on the geologic feature and the problems faced in water flooding in Niuxintuo Oilfield, we had done the research on displacement efficiency of different flooding systems through indoor physical modeling experiments.
We had selected the proper molecular weight and concentration of polymer through experiments, and the results showed that 970×10~4 of molecular weight and the concentration between 500-1500mg/L was matched well with the cores of 100mD, while 500×10~4 of molecular weight was matched well with the cores of 50mD. Selected surfactants formed ultra-low interfacial tension, the range from 0.2% to 0.4%, the compound systems with HLX surfactant and polymer could not form the ultra-low interfacial tension with oil, even without surfactant. While B kind surfactant system and it with polymer compound system could form the ultra-low interfacial tension between 55℃and 70℃.
In the paper, we had particularly done the research on influences of polymer flooding and binary compound flooding on the displacement efficiency in artificial cores with various fracture length and coefficient of variation and based on which evaluated the influence of profile control agent on the displacement efficiency.
The results showed that the chemical recovery and total recovery of two flooding systems increased as the fracture length increased. The chemical recovery increased as coefficient of variation ranged from 0.6 to 0.85, while total recovery discreased. Adding the profile control agent systems can enhance more recovery than that without it under the same condition. In total, the experiments carried on the heterogeneous cores showed that polymer-surfactant system had better displacement efficiency than polymer did, while the surfactant is the worst.
引文
[1]贾学军.高粘度稠油开采方法的现状与研究进展[J].石油天然气学报(江汉石油学院学报),2008,5(8):529-531.
[2]薛瑞新.国内外稠油开采技术研发趋势[J].科技创新导报,2008,7(1):25-26.
[3]张方礼.辽河油田稠油注蒸汽开发技术[M].1-1.辽河:石油工业出版社,2007:2-3.
[4]于连东.世界稠油资源的分布及其开采技术的现状与展望[J].特种油气藏,2001,8(2):99-103.
[5]王君,范毅.稠油油藏的开采技术和方法[J].西部探矿工程,2006,7:84-85.
[6]唐春燕,刘蜀知.稠油热采技术综述[J].内古石油化工,2007,6:128-130.
[7]王大为,周耐强,牟凯.稠油热采技术现状及发展趋势[J].西部探矿工程,2008,12:129-31.
[8]C·A·Ehlig-Economides.稠油冷采[J].特种油气藏,2001,8(4):85-87.
[9]柳春红,史江恒,常孝坤,申屠春海.稠油冷采技术研究及在胡状油田的应用[J].内古石油化工,2005(4):54-55.
[10]王振奇,刘绍平,何贞铭,唐清山,柴利文,黄太明.牛心坨油田牛心坨油层储集条件研究[J].江汉石油学院学报,2000,22(3):20-23.
[11]许晓宏,刘绍平,何贞铭,唐清山,柴利文,黄太明.牛心坨油田储层特征及其定量模拟[J].江汉石油学院学报,2000,22(3):27-29.
[12]吕立华,李明华,苏岳丽.稠油开采方法综述[J].内蒙古石油化工,2005(3):110-112.
[13]谢文彦.辽河坳陷稠油高凝油综合评价[J].特种油气藏,2007,14(4):1-5.
[14]陈和,平陈忠.牛心坨油田潜山油藏储层裂缝研究[J].特种油气藏,1996(3):61-64.
[15]张吉昌,罗玉庆.辽河盆地牛心坨变质岩裂缝性储层研究[J].西南石油油藏工程,1998(3):9-12.
[16]曹春富,李亚芹,孙绍春.牛心坨油田开发措施[J].1996(3):31-34.
[17]潘日芳,侯颜东.高升一牛心佗地区流体运动规律与油气运移聚集特征研究[J].断块油气田,1999,6(6):17-19.
[18]刘玉章.EOR聚合物驱提高采收率技术[M].北京:石油工业出版社,2006,19-21.
[19]李干佐,房秀敏.表面活性剂在能源和选矿工业中的应用[M].北京:中国轻工业出版社,2002,79-80.
[20]李干佐,翟利民.三次采油[J].科学出版社,2000,52(1):10-12.
[21]张宏方,王德民,王立军.聚合物溶液在多孔介质中的渗流规律及提高驱油效率机理[J].大庆石油地质与开发,2002,26(1):48-51.
[22]谌华山,张龙胜.用聚合物驱油提高稠油砂岩油藏采收率[J].江汉石油职工大学学报,2005,18(6):40-42.
[23]WANG DEMIN,HAO YUEXING.Result of Polymer Flooding Pilots in the Central Area of Daqing Oilfield[C].SPE 26401:5-7.
[24]廖广志,王克亮,闫文华.流度比对化学驱驱油效果影响实验研究[J].大庆石油地质与开发,2001,20(2):14-17.
[25]WANG DEMIN,CHENG JIECHENG;YANG QINGYAN.Viscous-elastic polymer can increase microscale displacement efficiency in cores[A].SPE 63227,2000:2-8.
[26][美]S.K.拜佳~([15])聚合物在多孔介质中的流动[M],石油工业出版社,1998,12(5):277-280.
[27]庞宗威等.聚合物分子量与岩心渗透率匹配关系得研究[J].大庆石油管理局勘探开发研究院采收率研究室,1990,104-111.
[28]吴文祥,侯吉瑞,张云祥,李彩虹,胡靖邦.聚合物分子量对聚合物驱油效率的影响[J].油田化学,1996(12):5-8.
[29]邵振波,付天郁,王冬梅.合理聚合物用量确定方法[J].大庆石油地质与开发,2001,20(2):60-62.
[30]王德民,程杰成,杨清彦,粘弹性聚合物溶液能够提高岩心的微观驱油效率[J],石油学报,2000,21(5):46-50.
[31]叶仲斌,彭杨,施雷庭,舒政,陈洪.多孔介质剪切作用对聚合物溶液粘弹性及驱油效果的影响[J].油气地质与采收率,2008(19):16-18.
[32]付天郁,邵振波,毕艳昌.注入速度对聚合物驱油效果的影响[J].大庆石油地质与开发,2001,20(2):63-66.
[33]宋考平,杨二龙,邓庆军,康少冬.聚合物驱合理注入速度的选择[J].大庆石油学院学报,2001,25(4):15-18.
[34]王业飞,李继勇,赵福麟.高矿化度条件下表面活性剂驱油体系[J].油气地质与采收率,2001,8(1),67-69.
[35]方李华,蔡诗琴.石油开采中表面活性剂驱的应用与展望[J].精细与专用化学品,2000(22):9-10.
[36]牟建海,李干佐.三次采油技术的发展现状及展望[J].化工科技市场,2000,2(7):17-20.
[37]王中华.油田用表面活性剂现状和发展趋势[J].河南化工,2006(23):4-7.
[38]郭东红.表面活性剂驱的驱油机理与应用[J].精细石油化工进展,2002,7:36-39.
[39]韩冬,沈平平编著.表面活性剂驱油原理及应用[M].北京石油工业出版社,2001(8):21-25.
[40]张景存.三次采油[M].北京:石油工业出版社,1995.39-46.
[41]张国印,伍晓林等.三次采油用烷基苯磺酸盐类表面活性剂研究[J].大庆石油地质与开发,2001,2(2),26-28.
[42]黄宏度.驱油用石油羧酸盐的研制[J].油田化学,1991,8(3):235-239.
[43]王业飞,李继勇,赵福麟.高矿化度条件下表面活性剂驱油体系[J].油气地质与采收率,2001,8(1),67-69.
[44]Q Liu,杨凤华,张帮亮.表面活性剂吸附解吸行为提高化学驱采收率[J].国外油田工程,2004,2(2):36-38.
[45]隋智慧.驱油用表面活性剂的研究[J].精细石油化工进展[J],2005:1-4.
[46]葛际江,张贵才,蒋平,孙铭勤.驱油用表面活性剂的发展[J].油田化学,2007,9(3):287-290.
[47]Moritis G.New technology improved economics boost EOR hopes[J].Oil Gas J,1996(Apr15):39-61.
[48]刘玉章,吕西辉.胜利油田用化学法提高原油采收率的探索与实践[J].油气采收率技术,1994,Ⅰ(1):25-28.
[49]Miklos T.Szabo~([13]) Molecular and Microscopic Interpretation of the Flow of Hydrolyzed Polyacrylamide Solutioon Though Porous Media.SPE 4028.218-233.
[50]张逢玉,卢艳,韩建彬.表面活性剂及其复配体系在三次采油中的应用.石油与天然气化工,1999(2):31-34.
[51]周润才编译.表面活性剂/聚合物驱油的基本原理[M].国外油气田工程,1995:52-55.
[52]Paul G W,Lake L W,Pope G A.A Simplified Predictive Model for Micellar-Polymer Flooding.SPE,1982:2-5.
[2]薛瑞新.国内外稠油开采技术研发趋势[J].科技创新导报,2008,7(1):25-26.
[3]张方礼.辽河油田稠油注蒸汽开发技术[M].1-1.辽河:石油工业出版社,2007:2-3.
[4]于连东.世界稠油资源的分布及其开采技术的现状与展望[J].特种油气藏,2001,8(2):99-103.
[5]王君,范毅.稠油油藏的开采技术和方法[J].西部探矿工程,2006,7:84-85.
[6]唐春燕,刘蜀知.稠油热采技术综述[J].内古石油化工,2007,6:128-130.
[7]王大为,周耐强,牟凯.稠油热采技术现状及发展趋势[J].西部探矿工程,2008,12:129-31.
[8]C·A·Ehlig-Economides.稠油冷采[J].特种油气藏,2001,8(4):85-87.
[9]柳春红,史江恒,常孝坤,申屠春海.稠油冷采技术研究及在胡状油田的应用[J].内古石油化工,2005(4):54-55.
[10]王振奇,刘绍平,何贞铭,唐清山,柴利文,黄太明.牛心坨油田牛心坨油层储集条件研究[J].江汉石油学院学报,2000,22(3):20-23.
[11]许晓宏,刘绍平,何贞铭,唐清山,柴利文,黄太明.牛心坨油田储层特征及其定量模拟[J].江汉石油学院学报,2000,22(3):27-29.
[12]吕立华,李明华,苏岳丽.稠油开采方法综述[J].内蒙古石油化工,2005(3):110-112.
[13]谢文彦.辽河坳陷稠油高凝油综合评价[J].特种油气藏,2007,14(4):1-5.
[14]陈和,平陈忠.牛心坨油田潜山油藏储层裂缝研究[J].特种油气藏,1996(3):61-64.
[15]张吉昌,罗玉庆.辽河盆地牛心坨变质岩裂缝性储层研究[J].西南石油油藏工程,1998(3):9-12.
[16]曹春富,李亚芹,孙绍春.牛心坨油田开发措施[J].1996(3):31-34.
[17]潘日芳,侯颜东.高升一牛心佗地区流体运动规律与油气运移聚集特征研究[J].断块油气田,1999,6(6):17-19.
[18]刘玉章.EOR聚合物驱提高采收率技术[M].北京:石油工业出版社,2006,19-21.
[19]李干佐,房秀敏.表面活性剂在能源和选矿工业中的应用[M].北京:中国轻工业出版社,2002,79-80.
[20]李干佐,翟利民.三次采油[J].科学出版社,2000,52(1):10-12.
[21]张宏方,王德民,王立军.聚合物溶液在多孔介质中的渗流规律及提高驱油效率机理[J].大庆石油地质与开发,2002,26(1):48-51.
[22]谌华山,张龙胜.用聚合物驱油提高稠油砂岩油藏采收率[J].江汉石油职工大学学报,2005,18(6):40-42.
[23]WANG DEMIN,HAO YUEXING.Result of Polymer Flooding Pilots in the Central Area of Daqing Oilfield[C].SPE 26401:5-7.
[24]廖广志,王克亮,闫文华.流度比对化学驱驱油效果影响实验研究[J].大庆石油地质与开发,2001,20(2):14-17.
[25]WANG DEMIN,CHENG JIECHENG;YANG QINGYAN.Viscous-elastic polymer can increase microscale displacement efficiency in cores[A].SPE 63227,2000:2-8.
[26][美]S.K.拜佳~([15])聚合物在多孔介质中的流动[M],石油工业出版社,1998,12(5):277-280.
[27]庞宗威等.聚合物分子量与岩心渗透率匹配关系得研究[J].大庆石油管理局勘探开发研究院采收率研究室,1990,104-111.
[28]吴文祥,侯吉瑞,张云祥,李彩虹,胡靖邦.聚合物分子量对聚合物驱油效率的影响[J].油田化学,1996(12):5-8.
[29]邵振波,付天郁,王冬梅.合理聚合物用量确定方法[J].大庆石油地质与开发,2001,20(2):60-62.
[30]王德民,程杰成,杨清彦,粘弹性聚合物溶液能够提高岩心的微观驱油效率[J],石油学报,2000,21(5):46-50.
[31]叶仲斌,彭杨,施雷庭,舒政,陈洪.多孔介质剪切作用对聚合物溶液粘弹性及驱油效果的影响[J].油气地质与采收率,2008(19):16-18.
[32]付天郁,邵振波,毕艳昌.注入速度对聚合物驱油效果的影响[J].大庆石油地质与开发,2001,20(2):63-66.
[33]宋考平,杨二龙,邓庆军,康少冬.聚合物驱合理注入速度的选择[J].大庆石油学院学报,2001,25(4):15-18.
[34]王业飞,李继勇,赵福麟.高矿化度条件下表面活性剂驱油体系[J].油气地质与采收率,2001,8(1),67-69.
[35]方李华,蔡诗琴.石油开采中表面活性剂驱的应用与展望[J].精细与专用化学品,2000(22):9-10.
[36]牟建海,李干佐.三次采油技术的发展现状及展望[J].化工科技市场,2000,2(7):17-20.
[37]王中华.油田用表面活性剂现状和发展趋势[J].河南化工,2006(23):4-7.
[38]郭东红.表面活性剂驱的驱油机理与应用[J].精细石油化工进展,2002,7:36-39.
[39]韩冬,沈平平编著.表面活性剂驱油原理及应用[M].北京石油工业出版社,2001(8):21-25.
[40]张景存.三次采油[M].北京:石油工业出版社,1995.39-46.
[41]张国印,伍晓林等.三次采油用烷基苯磺酸盐类表面活性剂研究[J].大庆石油地质与开发,2001,2(2),26-28.
[42]黄宏度.驱油用石油羧酸盐的研制[J].油田化学,1991,8(3):235-239.
[43]王业飞,李继勇,赵福麟.高矿化度条件下表面活性剂驱油体系[J].油气地质与采收率,2001,8(1),67-69.
[44]Q Liu,杨凤华,张帮亮.表面活性剂吸附解吸行为提高化学驱采收率[J].国外油田工程,2004,2(2):36-38.
[45]隋智慧.驱油用表面活性剂的研究[J].精细石油化工进展[J],2005:1-4.
[46]葛际江,张贵才,蒋平,孙铭勤.驱油用表面活性剂的发展[J].油田化学,2007,9(3):287-290.
[47]Moritis G.New technology improved economics boost EOR hopes[J].Oil Gas J,1996(Apr15):39-61.
[48]刘玉章,吕西辉.胜利油田用化学法提高原油采收率的探索与实践[J].油气采收率技术,1994,Ⅰ(1):25-28.
[49]Miklos T.Szabo~([13]) Molecular and Microscopic Interpretation of the Flow of Hydrolyzed Polyacrylamide Solutioon Though Porous Media.SPE 4028.218-233.
[50]张逢玉,卢艳,韩建彬.表面活性剂及其复配体系在三次采油中的应用.石油与天然气化工,1999(2):31-34.
[51]周润才编译.表面活性剂/聚合物驱油的基本原理[M].国外油气田工程,1995:52-55.
[52]Paul G W,Lake L W,Pope G A.A Simplified Predictive Model for Micellar-Polymer Flooding.SPE,1982:2-5.
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