水驱油田晚期开发特征及提高采收率主攻方向
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摘要
随着地质认识深化,特高含水期油田开发特征不断变化,剩余油减少,且变得更加零散和复杂。通过综合分析认识到:剩余油主要存在于水驱波及不到的储层部位;水驱波及到但水驱倍数低的储层部位,剩余油主要存在于水驱波及不到孔隙中的微观剩余部位;水驱波及到且水驱倍数很高的储层部位驱油效率已经很高了。因此特高含水期油田提高采收率的主攻方向仍以提高水驱波及体积为主。即使特高含水后期改为化学驱的油田,也还有一定的储层存在波及不到的剩余油,必须采取提高波及体积的技术来提高油田采收率。
With the deepening of the geological understandings, the development characteristics are changing continuously for the oilfields in the ultra-high-watercut period, the remained oil is decreasing, and moreover it is becoming more scattered and complex.Through the comprehensive analysis, it is realized that the remained oil mainly exists in the reservoir where the water flooding can not reach and sweep; where although the oil is swept by the water flooding, the swept multiple is not enough, the remained oil mainly exists in the microscopic residual part of the reservoir where the pores can not be swept; the oil displaced efficiency is very high in the reservoir where the water flooding can sweep and moreover the swept multiple is rather higher.Therefore the main tackled research direction is still in increasing the water swept volume.Even the oilfield was changed to be chemically flooded in the late period of extra-high water cut, there is still some remained oil that cannot be swept within a certain reservoirs, so it is necessary to adopt the technique of increasing the sweep volume to enhance the oilfield recovery.
With the deepening of the geological understandings, the development characteristics are changing continuously for the oilfields in the ultra-high-watercut period, the remained oil is decreasing, and moreover it is becoming more scattered and complex.Through the comprehensive analysis, it is realized that the remained oil mainly exists in the reservoir where the water flooding can not reach and sweep; where although the oil is swept by the water flooding, the swept multiple is not enough, the remained oil mainly exists in the microscopic residual part of the reservoir where the pores can not be swept; the oil displaced efficiency is very high in the reservoir where the water flooding can sweep and moreover the swept multiple is rather higher.Therefore the main tackled research direction is still in increasing the water swept volume.Even the oilfield was changed to be chemically flooded in the late period of extra-high water cut, there is still some remained oil that cannot be swept within a certain reservoirs, so it is necessary to adopt the technique of increasing the sweep volume to enhance the oilfield recovery.
引文
[1]李雪松,宋保全,姜岩,等.特高含水老油田断层附近高效井优化设计[J].大庆石油地质与开发,2015,34(1):56-58.LI Xuesong,SONG Baoquan,JIANG Yan,et al.Optimized design of high-efficiency adjusting wells near the faults of high-watercut mature oilfield[J].Petroleum Geology & Oilfield Development in Daqing,2015,34(1):56-58.
[2]巢华庆.大庆油田提高采收率研究与实践[M].北京:石油工业出版社,2006:99-101.CHAO Huaqing.Research and practice of EOR improvement in Daqing Oilfield[M].Beijing:Petroleum Industry Press,2006:99-101.
[3] 王志武,刘恒,袁庆峰,等.大庆油田稳油控水系统工程[M].北京:石油工业出版社,2000:54-64.WANG Zhiwu,LIU Heng,YUANG Qingfeng,et al.Oil stabilization and water control system engineering in Daqing Oilfield[M].Beijing:Petroleum Industry Press,2000:54-64.
[4]韩大匡.准确预测剩余油相对富集区提高油田注水采收率研究[J].石油学报,2007,28(2):73-78.HAN Dakuang.Precisely predicting abundant remaining oil and improving the secondary recovery of mature oilfields[J].Acta Petrolei Sinica,2007,28(2):73-78.
[5]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.LI Yang.Flow unit mode and remaining oil distribution in reservoir[J].Acta Petrolei Sinica,2003,24(3):52-55.
[6]杜庆龙,朱丽红.喇萨杏油田特高含水期剩余油分布及描述技术[J].大庆石油地质与开发,2009,28(5):99-105.DU Qinglong,ZHU Lihong.Remaining oil distribution and its description technology during ultra-high water cut stage in La-Sa-Xing Oilfields[J].Petroleum Geology & Oilfield Development in Daqing,2009,28(5):99-105.
[7]刘建民,徐守余.河流相储层沉积模式及对剩余油分布的控制[J].石油学报,2003,24(1):58-62.LIU Jianmin,XU Shouyu.Reservoir sedimentary model of fluvial facies and it′s control to remaining oil distribution[J].Acta Petrolei Sinica,2003,24(1):58-62.
[8]王立军,刘强,李红军,等.同生断层和微构造对油井产能和剩余油分布的影响[J].大庆石油地质与开发,2011,30(2):61-64.WANG Lijun,LIU Qiang,LI Hongjun,et al.Influence of contemporaneous fault and microstructure on oil well productivity and remaining oil distribution[J].Petroleum Geology & Oilfield Development in Daqing,2011,30(2):61-64.
[9]饶良玉,吴向红,韩冬,等.高含水油田剩余油分布研究现状与展望[J].大庆石油地质与开发,2012,31(2):66-71.RAO Liangyu,WU Xianghong,HAN Dong,et al.Current studies and prospects of the remained oil distribution in high-water-cut oilfield[J].Petroleum Geology & Oilfield Development in Daqing,2012,31(2):66-71.
[10]刘建民,李阳,毕研鹏,等.应用驱油微观模拟实验技术研究储层剩余油微观分布特征[J].中国海上油气(地质),2000,14(1):51-54.LIU Jianmin,LI Yang,BI Yanpeng,et al.Research on the microscopic distribution characteristics of formation residual oil with the experiment of oil-driven micro simulation[J].China Offshore Oil and Gas(Geology),2000,14(1):51-54.
[11]王朴,蔡进功,谢忠怀,等.用含油薄片研究剩余油微观分布特征[J].油气地质与采收率,2002,9(1):60-61.WANG Pu,CAI Jingong,XIE Zhonghuai et al.Using oil-bearing thin section to study microscopic distribution feature of remaining oil[J].Petroleum Geology and Recovery Efficiency,2002,9(1):60-61.
[12]李振泉,侯健,曹绪龙,等.储层微观参数对剩余油分布影响的微观模拟研究[J].石油学报,2005,26(6):69-73.LI Zhenquan,HOU Jian,CAO Xulong,et al.Microscopic simulation for influence of microscopic reservoir parameters on remaining oil distribution[J].Acta Petrolei Sinica,2005,26(6):69-73.
[13]徐守余,朱连章,王德军.微观剩余油动态演化仿真模型研究[J].石油学报,2005,26(2):69-72.XU Shouyu,ZHU Lianzhang,WANG Dejun.Dynamic simulation and evolvement model for microscopic remaining oil[J].Acta Petrolei Sinica,2005,26(2):69-72.
[14]魏丽影,孙先达.喇萨杏油田特高含水期厚油层微观剩余油分布[J].大庆石油地质与开发,2011,30(4):63-66.WEI Liying,SUN Xianda.Microscopic distribution of remained oil in thick oil-layers of La-Sa-Xing Oilfields at ultra-high water cut stage[J].Petroleum Geology & Oilfield Development in Daqing,2011,30(4):63-66.
[15]白振强,吴胜和,付志国.大庆油田聚合物驱后微观剩余油分布规律[J].石油学报,2013,34(5):924-931.BAI Zhenqiang,WU Shenghe,FU Zhiguo.The distribution of microcosmic remaining oils after polymer flooding in Daqing Oilfield[J].Acta Petrolei Sinica,2013,34(5):924-931.
[16]禹影.聚合物驱后油层优势渗流通道识别与治理[J].大庆石油地质与开发,2017,36(4):101-105.YU Ying.Identification and control of the preferential seepage channels for the oil reservoirs after the polymer flooding[J].Petroleum Geology & Oilfield Development in Daqing,2017,36(4):101-105.
[17]林玉保.高含水后期储层优势渗流通道形成机理[J].大庆石油地质与开发,2018,37(6):33-37.LIN Yubao.Forming mechanism of the preferential seepage channel for the reservoir at the late stage of the high watercut[J].Petroleum Geology & Oilfield Development in Daqing,2018,37(6):33-37.
[18]方越,李洪生,于春生,等.高注入倍数油水两相渗流特征研究[J].石油地质与工程,2019,33(1):56-59.FANG Yue,LI Hongsheng,YU Chunsheng,et al.Seepage characteristics of oil-water two-phase with high injection ratio[J].Petroleum Geology and Engineering,2019,33(1):56-59.
[19]宋考平,李世军,方伟,等.用荧光分析方法研究聚合物驱后微观剩余油变化[J].石油学报,2005,26(2):92-95.SONG Kaoping,LI Shijun,FANG Wei,et al.Fluorescence analysis on changeable rules of microscopic remaining oil after polymer flooding[J].Acta Petrolei Sinica,2005,26(2):92-95.
[20]王国锋.低渗透油层低黏度聚驱微观剩余油动用机理[J].断块油气田,2018,25(6):776-780.WANG Guofeng.Microscopic residual oil utilization mechanism of low viscosity polymer flooding in low permeability reservoir[J].Fault-Block Oil & Gas Field,2018,25(6):776-780.
[21]王友净,宋新民,田昌炳,等.动态裂缝是特低渗透油藏注水开发中出现的新的开发地质属性[J].石油勘探与开发,2015,42(2):222-228.WANG Youjing,SONG Xinmin,TIAN Changbing,et al.Dynamic fractures are an emerging new development geological attribute in water-flooding development of ultra-low permeability reservoirs[J].Petroleum Exploration and Development,2015,42(2):222-228.
[22]刘福娥.中高渗砂岩油藏水驱油效率研究[J].科技致富向导,2013(12):265.LIU Fue.Study on water driving efficiency of medium and high permeability sandstone reservoir[J].Guide of Sci-tech Magazine,2013(12):265.
[2]巢华庆.大庆油田提高采收率研究与实践[M].北京:石油工业出版社,2006:99-101.CHAO Huaqing.Research and practice of EOR improvement in Daqing Oilfield[M].Beijing:Petroleum Industry Press,2006:99-101.
[3] 王志武,刘恒,袁庆峰,等.大庆油田稳油控水系统工程[M].北京:石油工业出版社,2000:54-64.WANG Zhiwu,LIU Heng,YUANG Qingfeng,et al.Oil stabilization and water control system engineering in Daqing Oilfield[M].Beijing:Petroleum Industry Press,2000:54-64.
[4]韩大匡.准确预测剩余油相对富集区提高油田注水采收率研究[J].石油学报,2007,28(2):73-78.HAN Dakuang.Precisely predicting abundant remaining oil and improving the secondary recovery of mature oilfields[J].Acta Petrolei Sinica,2007,28(2):73-78.
[5]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.LI Yang.Flow unit mode and remaining oil distribution in reservoir[J].Acta Petrolei Sinica,2003,24(3):52-55.
[6]杜庆龙,朱丽红.喇萨杏油田特高含水期剩余油分布及描述技术[J].大庆石油地质与开发,2009,28(5):99-105.DU Qinglong,ZHU Lihong.Remaining oil distribution and its description technology during ultra-high water cut stage in La-Sa-Xing Oilfields[J].Petroleum Geology & Oilfield Development in Daqing,2009,28(5):99-105.
[7]刘建民,徐守余.河流相储层沉积模式及对剩余油分布的控制[J].石油学报,2003,24(1):58-62.LIU Jianmin,XU Shouyu.Reservoir sedimentary model of fluvial facies and it′s control to remaining oil distribution[J].Acta Petrolei Sinica,2003,24(1):58-62.
[8]王立军,刘强,李红军,等.同生断层和微构造对油井产能和剩余油分布的影响[J].大庆石油地质与开发,2011,30(2):61-64.WANG Lijun,LIU Qiang,LI Hongjun,et al.Influence of contemporaneous fault and microstructure on oil well productivity and remaining oil distribution[J].Petroleum Geology & Oilfield Development in Daqing,2011,30(2):61-64.
[9]饶良玉,吴向红,韩冬,等.高含水油田剩余油分布研究现状与展望[J].大庆石油地质与开发,2012,31(2):66-71.RAO Liangyu,WU Xianghong,HAN Dong,et al.Current studies and prospects of the remained oil distribution in high-water-cut oilfield[J].Petroleum Geology & Oilfield Development in Daqing,2012,31(2):66-71.
[10]刘建民,李阳,毕研鹏,等.应用驱油微观模拟实验技术研究储层剩余油微观分布特征[J].中国海上油气(地质),2000,14(1):51-54.LIU Jianmin,LI Yang,BI Yanpeng,et al.Research on the microscopic distribution characteristics of formation residual oil with the experiment of oil-driven micro simulation[J].China Offshore Oil and Gas(Geology),2000,14(1):51-54.
[11]王朴,蔡进功,谢忠怀,等.用含油薄片研究剩余油微观分布特征[J].油气地质与采收率,2002,9(1):60-61.WANG Pu,CAI Jingong,XIE Zhonghuai et al.Using oil-bearing thin section to study microscopic distribution feature of remaining oil[J].Petroleum Geology and Recovery Efficiency,2002,9(1):60-61.
[12]李振泉,侯健,曹绪龙,等.储层微观参数对剩余油分布影响的微观模拟研究[J].石油学报,2005,26(6):69-73.LI Zhenquan,HOU Jian,CAO Xulong,et al.Microscopic simulation for influence of microscopic reservoir parameters on remaining oil distribution[J].Acta Petrolei Sinica,2005,26(6):69-73.
[13]徐守余,朱连章,王德军.微观剩余油动态演化仿真模型研究[J].石油学报,2005,26(2):69-72.XU Shouyu,ZHU Lianzhang,WANG Dejun.Dynamic simulation and evolvement model for microscopic remaining oil[J].Acta Petrolei Sinica,2005,26(2):69-72.
[14]魏丽影,孙先达.喇萨杏油田特高含水期厚油层微观剩余油分布[J].大庆石油地质与开发,2011,30(4):63-66.WEI Liying,SUN Xianda.Microscopic distribution of remained oil in thick oil-layers of La-Sa-Xing Oilfields at ultra-high water cut stage[J].Petroleum Geology & Oilfield Development in Daqing,2011,30(4):63-66.
[15]白振强,吴胜和,付志国.大庆油田聚合物驱后微观剩余油分布规律[J].石油学报,2013,34(5):924-931.BAI Zhenqiang,WU Shenghe,FU Zhiguo.The distribution of microcosmic remaining oils after polymer flooding in Daqing Oilfield[J].Acta Petrolei Sinica,2013,34(5):924-931.
[16]禹影.聚合物驱后油层优势渗流通道识别与治理[J].大庆石油地质与开发,2017,36(4):101-105.YU Ying.Identification and control of the preferential seepage channels for the oil reservoirs after the polymer flooding[J].Petroleum Geology & Oilfield Development in Daqing,2017,36(4):101-105.
[17]林玉保.高含水后期储层优势渗流通道形成机理[J].大庆石油地质与开发,2018,37(6):33-37.LIN Yubao.Forming mechanism of the preferential seepage channel for the reservoir at the late stage of the high watercut[J].Petroleum Geology & Oilfield Development in Daqing,2018,37(6):33-37.
[18]方越,李洪生,于春生,等.高注入倍数油水两相渗流特征研究[J].石油地质与工程,2019,33(1):56-59.FANG Yue,LI Hongsheng,YU Chunsheng,et al.Seepage characteristics of oil-water two-phase with high injection ratio[J].Petroleum Geology and Engineering,2019,33(1):56-59.
[19]宋考平,李世军,方伟,等.用荧光分析方法研究聚合物驱后微观剩余油变化[J].石油学报,2005,26(2):92-95.SONG Kaoping,LI Shijun,FANG Wei,et al.Fluorescence analysis on changeable rules of microscopic remaining oil after polymer flooding[J].Acta Petrolei Sinica,2005,26(2):92-95.
[20]王国锋.低渗透油层低黏度聚驱微观剩余油动用机理[J].断块油气田,2018,25(6):776-780.WANG Guofeng.Microscopic residual oil utilization mechanism of low viscosity polymer flooding in low permeability reservoir[J].Fault-Block Oil & Gas Field,2018,25(6):776-780.
[21]王友净,宋新民,田昌炳,等.动态裂缝是特低渗透油藏注水开发中出现的新的开发地质属性[J].石油勘探与开发,2015,42(2):222-228.WANG Youjing,SONG Xinmin,TIAN Changbing,et al.Dynamic fractures are an emerging new development geological attribute in water-flooding development of ultra-low permeability reservoirs[J].Petroleum Exploration and Development,2015,42(2):222-228.
[22]刘福娥.中高渗砂岩油藏水驱油效率研究[J].科技致富向导,2013(12):265.LIU Fue.Study on water driving efficiency of medium and high permeability sandstone reservoir[J].Guide of Sci-tech Magazine,2013(12):265.
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