黏弹性颗粒驱油剂在多孔介质中的渗流规律
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摘要
为深入认识非均相复合驱油机理,指导非均相复合驱油体系设计及技术推广应用,通过物理模拟手段,并结合孤岛油田中一区Ng3单元非均相复合驱矿场见效特征,分析了黏弹性颗粒驱油剂在多孔介质中的运移特征。结果表明,黏弹性颗粒驱油剂较聚合物具有更强的调整非均质能力,黏弹性颗粒驱油剂在多孔介质中以"堆积堵塞-压力升高-变形通过"的方式渗流。黏弹性颗粒驱油剂通过孔喉时,通过挤压变形和拉伸变形,局部改变驱动压差,具有深部运移、非均质调整以及交替封堵、均匀驱替的特点,能够有效扩大波及体积,从而最终提高原油采收率。
In order to recognise the mechanism of heterogeneous combination flooding and guide designing heterogeneous combination flooding system and application of technology,the migration characteristics of a novel preformed particle gel( PPG) was studied through physical simulation method and combining with the field response character of the heterogeneous combination flooding of ZYQ Ng3 at Gudao oilfield. Results showed that PPG has a stronger ability to adjust the heterogeneity than polymer. PPG could migrate by means of piling up,plugging,pressure rising and deforming at throats to modify the existing dominant migration paths. Meantime,driving pressure was partially changed through the extrusion deformation and tensile deformation in pore throats. PPG had the advantages of migrating,heterogeneous adjustment,alternate plugging and flowing evenly. These characteristics can significantly improve swept volume and finally enhance oil recovery.
In order to recognise the mechanism of heterogeneous combination flooding and guide designing heterogeneous combination flooding system and application of technology,the migration characteristics of a novel preformed particle gel( PPG) was studied through physical simulation method and combining with the field response character of the heterogeneous combination flooding of ZYQ Ng3 at Gudao oilfield. Results showed that PPG has a stronger ability to adjust the heterogeneity than polymer. PPG could migrate by means of piling up,plugging,pressure rising and deforming at throats to modify the existing dominant migration paths. Meantime,driving pressure was partially changed through the extrusion deformation and tensile deformation in pore throats. PPG had the advantages of migrating,heterogeneous adjustment,alternate plugging and flowing evenly. These characteristics can significantly improve swept volume and finally enhance oil recovery.
引文
1李贤丽.聚驱后剩余油潜力影响因素研究.科学技术与工程,2010;10(13):3272-3076Li Xianli.The study of remaining oil potential influencing factors after polymer flooding.Science Technology and Engineering,2010;10(13):3272-3076
2李夏宁,张九然,张伟.基于三维网络模型的聚合物驱后微观剩余油研究.科学技术与工程,2011;11(8):1686-1690Li Xianing,Zhang Jiuran,Zhang Wei.The research on residual oil distribution after polymer flooding based on three-dimensional network model.Science Technology and Engineering,2011;11(8):1686-1690
3孙宜丽,彭冠宇,郑书伟,等.聚驱后剩余油分布规律及挖潜对策研究.西安石油大学学报(自然科学版),2007;22(6):53-59Sun Yili,Peng Guanyu,Zheng Shuwei,et al.Study on the remaining oil distribution law after polymer flooding and potential tapping measures.Journal of Xi'an Shiyou University(Natural Science Edition),2007;22(6):53-59
4孙焕泉,曹绪龙,李振泉,等.非均相复合驱技术.北京:科学出版社,2016:1-2Sun Huanquan,Cao Xulong,Li Zhenquan,et al.The heterogeneous phase combination flooding used in enhanced oil recovery.Beijing:Science Press,2016:1-2
5曹绪龙.非均相复合驱油体系设计与性能研究.石油学报(石油加工),2013;29(1):115-121Cao Xulong.Design and performance evaluation on the heterogeneous combination flooding system.Acta Petrolei Sinica(Petroleum Processing Section),2013;29(1):115-121
6崔晓红.新型非均相复合驱油方法.石油学报,2011;32(1):122-126Cui Xiaohong.A study on the heterogeneous combination flooding system.Acta Petrolei Sinica,2011,32(1):122-126
7张莉,崔晓红,任韶然.聚合物驱后油藏提高采收率技术研究.石油与天然气化工,2010;39(2):144-147Zhang Li,Cui Xiaohong,Ren Shaoran.The study on enhanced oil recovery technology in reservoirs after polymer flooding.Chemical Engineering of Oil&Gas,2010;39(2):144-147
8陈晓彦.非均相驱油剂应用方法研究.石油钻采工艺,2009;31(5):85-88Chen Xiaoyan.Method study for application of heterogeneous oil displacement agent.Oil Drilling&Production Technology,2009;31(5):85-88
9陈晓彦.非均相复合驱油体系驱替特征研究.精细石油化工进展,2009;10(11):1-4Chen Xiaoyan.Study on displacement characteristics of new immiscible flooding system.Advances in Fine Petrochemicals,2009;10(11):1-4
10刘煜.黏弹性颗粒驱油剂调驱性能的室内研究.承德石油高等专科学校学报,2013;15(3):5-9Liu Yu.Study for the flooding property of preformed particle gel.Journal of Chengde Petroleum College,2013;15(3):5-9
11陈霆,孙志刚.不同化学驱油体系微观驱油机理评价方法.石油钻探技术,2013;41(2):87-92Chen Ting,Sun Zhigang.Micraoscopic flooding mechanism of different chemical displacement systems.Petroleum Drilling Techniques,2013;41(2):87-92
12刘煜.黏弹性颗粒驱油剂注入性能研究.西安石油大学学报(自然科学版),2016;31(5):60-63Liu Yu.Study on Injection performance of viscoelastic particle displancement agent(preformed particle gel(PPG)).Journal of Xi'an Shiyou University(Natural Science Edition),2016;31(5):60-63
13赖南君,叶仲斌,覃孝平,等.钠土-聚合物复合调剖体系性能评价.油气田地面工程,2010;29(5):11-12Lai Nanjun,Ye Zhongbin,Qin Xiaoping,et al.Performance assessment of complex profile system of sodium soil polymer.Oil-Gas Field Surface Engineering,2010;29(5):11-12
2李夏宁,张九然,张伟.基于三维网络模型的聚合物驱后微观剩余油研究.科学技术与工程,2011;11(8):1686-1690Li Xianing,Zhang Jiuran,Zhang Wei.The research on residual oil distribution after polymer flooding based on three-dimensional network model.Science Technology and Engineering,2011;11(8):1686-1690
3孙宜丽,彭冠宇,郑书伟,等.聚驱后剩余油分布规律及挖潜对策研究.西安石油大学学报(自然科学版),2007;22(6):53-59Sun Yili,Peng Guanyu,Zheng Shuwei,et al.Study on the remaining oil distribution law after polymer flooding and potential tapping measures.Journal of Xi'an Shiyou University(Natural Science Edition),2007;22(6):53-59
4孙焕泉,曹绪龙,李振泉,等.非均相复合驱技术.北京:科学出版社,2016:1-2Sun Huanquan,Cao Xulong,Li Zhenquan,et al.The heterogeneous phase combination flooding used in enhanced oil recovery.Beijing:Science Press,2016:1-2
5曹绪龙.非均相复合驱油体系设计与性能研究.石油学报(石油加工),2013;29(1):115-121Cao Xulong.Design and performance evaluation on the heterogeneous combination flooding system.Acta Petrolei Sinica(Petroleum Processing Section),2013;29(1):115-121
6崔晓红.新型非均相复合驱油方法.石油学报,2011;32(1):122-126Cui Xiaohong.A study on the heterogeneous combination flooding system.Acta Petrolei Sinica,2011,32(1):122-126
7张莉,崔晓红,任韶然.聚合物驱后油藏提高采收率技术研究.石油与天然气化工,2010;39(2):144-147Zhang Li,Cui Xiaohong,Ren Shaoran.The study on enhanced oil recovery technology in reservoirs after polymer flooding.Chemical Engineering of Oil&Gas,2010;39(2):144-147
8陈晓彦.非均相驱油剂应用方法研究.石油钻采工艺,2009;31(5):85-88Chen Xiaoyan.Method study for application of heterogeneous oil displacement agent.Oil Drilling&Production Technology,2009;31(5):85-88
9陈晓彦.非均相复合驱油体系驱替特征研究.精细石油化工进展,2009;10(11):1-4Chen Xiaoyan.Study on displacement characteristics of new immiscible flooding system.Advances in Fine Petrochemicals,2009;10(11):1-4
10刘煜.黏弹性颗粒驱油剂调驱性能的室内研究.承德石油高等专科学校学报,2013;15(3):5-9Liu Yu.Study for the flooding property of preformed particle gel.Journal of Chengde Petroleum College,2013;15(3):5-9
11陈霆,孙志刚.不同化学驱油体系微观驱油机理评价方法.石油钻探技术,2013;41(2):87-92Chen Ting,Sun Zhigang.Micraoscopic flooding mechanism of different chemical displacement systems.Petroleum Drilling Techniques,2013;41(2):87-92
12刘煜.黏弹性颗粒驱油剂注入性能研究.西安石油大学学报(自然科学版),2016;31(5):60-63Liu Yu.Study on Injection performance of viscoelastic particle displancement agent(preformed particle gel(PPG)).Journal of Xi'an Shiyou University(Natural Science Edition),2016;31(5):60-63
13赖南君,叶仲斌,覃孝平,等.钠土-聚合物复合调剖体系性能评价.油气田地面工程,2010;29(5):11-12Lai Nanjun,Ye Zhongbin,Qin Xiaoping,et al.Performance assessment of complex profile system of sodium soil polymer.Oil-Gas Field Surface Engineering,2010;29(5):11-12