岩性油气藏 ›› 2020, Vol. 32 ›› Issue (2): 149–160.doi: 10.12108/yxyqc.20200217

• 油气田开发 • 上一篇    下一篇

渤海湾盆地永安油田永66区块氮气驱油机理

关华1, 郭平1, 赵春兰1, 谭保国2, 徐冬梅2   

  1. 1. 油气藏地质及开发工程国家重点实验室·西南石油大学, 成都 610500;
    2. 中国石化胜利油田分公司 勘探开发研究院, 山东 东营 257015
  • 收稿日期:2019-06-23 修回日期:2019-09-17 出版日期:2020-03-21 发布日期:2020-01-19
  • 作者简介:关华,女(1995-),西南石油大学在读硕士研究生,研究方向为油藏数值模拟、提高采收率。地址:(610500)四川省成都市新都区新都大道8号西南石油大学。Email:guanhuaoffice@163.com。
  • 基金资助:
    国家油气重大专项“复杂断块油田提高采收率技术”（编号：2016ZX05011-002）资助

Mechanism of nitrogen flooding in Yong 66 block of Yong'an Oilfield,Bohai Bay Basin

GUAN Hua1, GUO Ping1, ZHAO Chunlan1, TAN Baoguo2, XU Dongmei2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
    2. Research Institute of Exploration and Development, SINOPEC Shengli Oilfield Company, Dongying 257015, Shandong, China
  • Received:2019-06-23 Revised:2019-09-17 Online:2020-03-21 Published:2020-01-19

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摘要： 为研究渤海湾盆地永安油田永66区块氮气驱油机理及其变化规律，在地质认识基础上开展了流体相态实验和数值模拟研究。结果表明：①注氮气吞吐过程中，地层倾角、驱替速度以及毛管压力的大小对地层含油饱和度和界面张力的变化均具有明显控制作用；②地层倾角越大、驱替速度越快，原油越容易被驱替至油藏底部，从而油藏底部的含油饱和度越大，而油藏顶部流体则变成油气两相，界面张力增加；③在氮气驱油过程中，随着毛管压力的增加，气体进入孔隙的阻力增大，底部含油饱和度也会随之增大，但原油向油层底部聚集的速度减慢，顶部界面张力增大，含油饱和度和界面张力变化的范围和程度逐渐减小。该研究成果对油气田开发过程中利用氮气驱油提高采收率具有指导作用。

关键词: 流体相态实验, 相态拟合, 数值模拟, 氮气驱油, 永安油田, 渤海湾盆地

Abstract: In order to study the mechanism of nitrogen flooding and its variation law in Yong 66 block of Yong'an Oilfield in Bohai Bay Basin,fluid phase experiments and numerical simulations were carried out on the basis of geological study. The results show that:(1)During the nitrogen injection process,the formation dip angle,displacement velocity and capillary pressure have obvious effects on the change of oil saturation and interfacial tension. (2)The greater the formation dip angle and displacement velocity are,more crude oil is displaced to the bottom of the reservoir,the greater the oil saturation at the bottom of the reservoir is. At the same time,the upper fluid of the reservoir becomes the two phases of oil and gas,and the interfacial tension increases.(3)During the process of nitrogen flooding,as the capillary pressure increases,the resistance of the gas entering into the pores increases, and so does the oil saturation at the bottom,although the accumulation of crude oil to the bottom of the reservoir slows down. Also,the tension at the top interface increases,while the range and degree of the change gradually decreases. The research results have a guiding role in the application of nitrogen flooding to enhance oil recovery in the development of oil and gas fields.

Key words: fluid phase experiment, phase behavior matching, numerical simulation, nitrogen flooding, Yong'an Oilfield, Bohai Bay Basin

中图分类号: 

  • TE357.7
[1] 任泽樱, 贾丽萍, 兰文武.潍北油田昌3断块水驱开发效果评价.石化技术, 2016, 23(12):139. REN Z Y, JIA L P, LAN W W. Evaluation on development effect of water flooding in Chang 3 fault of Weibei Oilfield. Petrochemical Industry Technology, 2016, 23(12):139.
[2] 杨红, 王宏, 南宇峰, 等.油藏CO2驱油提高采收率适宜性评价.岩性油气藏, 2017, 29(3):140-146. YANG H, WANG H, NAN Y F, et al. Suitability evaluation of enhanced oil recovery by CO2 flooding. Lithologic Reservoirs, 2017, 29(3):140-146.
[3] 张凡磊. 复杂断块开发中后期油藏潜力分析与开发调整对策:以港东开发区G5-71井区为例.延安大学学报(自然科学版), 2017, 36(1):70-74. ZHANG F L. Reservoir potential analysis and development adjustment countermeasures of middle-late production stages in complex fault-block:a case study of G5-71 wellblock at Gangdong development area. Journal of Yan'an University(Natural Science Edition), 2017, 36(1):70-74.
[4] 王振鹏, 陈民锋, 尹承哲. 砾岩油藏水驱开发潜力分级评价. 岩性油气藏, 2018, 30(5):109-115. WANG Z P, CHEN M F, YIN C Z. Development potential classification evaluation for water-flooding in conglomerate reservoir. Lithologic Reservoirs, 2018, 30(5):109-115.
[5] 吴忠宝, 甘俊奇, 曾倩.低渗透油藏二氧化碳混相驱油机理数值模拟.油气地质与采收率, 2012, 19(3):67-70.WU Z B, GAN J Q, ZENG Q. Numerical simulation of CO2 miscible flooding in low-permeability oil reservoir. Petroleum Geology and Recovery Efficiency, 2012, 19(3):67-70.
[6] 马力, 欧阳传湘, 谭钲扬, 等.低渗透油藏CO2驱中后期提效方法研究.岩性油气藏, 2018, 30(2):139-145. MA L, OUYANG C X, TAN Z Y, et al. Efficiency improvement of CO2 flooding in middle and later stage for low permeability reservoirs. Lithologic Reservoirs, 2018, 30(2):139-145.
[7] YUE P, XIE Z W, HUANG S Y, et al. The application of N2 huff and puff for IOR in fracture-vuggy carbonate reservoir. Fuel, 2018, 234:1507-1517.
[8] 惠健, 刘学利, 汪洋, 等.塔河油田缝洞型油藏单井注氮气采油机理及实践.新疆石油地质, 2015, 36(1):75-77. HUI J, LIU X L, WANG Y, et al. Mechanism and practice of nitrogen injection for EOR in fractured-vuggy carbonate reservoir in Tahe Oilfield, Tarim Basin. Xinjiang Petroleum Geology, 2015, 36(1):75-77.
[9] 赵冰冰, 张承洲, 游津津, 等.缝洞型油藏注氮气吞吐影响因素研究.长江大学学报(自然科学版), 2014, 11(31):160-161. ZHAO B B, ZHANG C Z, YOU J J, et al. The Influencing factors in nitrogen injection fracture-vuggy reservoirs. Journal of Yangtze University(Natural Science Edition), 2014, 11(31):160-161.
[10] 胡潇.缝洞型碳酸盐岩油藏单井注氮气参数优化研究:以TH油田为例.成都:西南石油大学, 2017. HU X. Single well nitrogen injection parameter optimization research in seam hole type carbonate reservoir-to TH Oilfield as an example. Chengdu:Southwest Petroleum University, 2017.
[11] ZHANG Y, YU W, LI Z P, et al. Simulation study of factors affecting CO2 huff-n-puff process in tight oil reservoirs. Journal of Petroleum Science and Engineering, 2018, 163:264-269.
[12] 梁金中, 王伯军, 关文龙, 等.稠油油藏火烧油层吞吐技术与矿场实验.石油学报, 2017, 38(3):324-332. LIANG J Z, WANG B J, GUAN W L, et al. Technology and field test of cyclic in situ combustion in heavy oil reservoir. Acta Petrolei Sinica, 2017, 38(3):324-332.
[13] 李飚, 薛雁海, 胡嘉, 等.裂缝油藏注氮气吞吐效果因素分析. 化工管理, 2015(5):52. LI B, XUE Y H, HU J, et al. Factor analysis of nitrogen injection huff and puff effect in fractured reservoirs. Chemical Enterprise Management, 2015(5):52.
[14] 张艳玉, 吴晓东, 李洪君, 等.复杂小断块油藏氮气吞吐数值模拟.中国石油大学学报(自然科学版), 2009, 33(1):83-86. ZHANG Y Y, WU X D, LI H J, et al. Numerical simulation of nitrogen stimulation for complex small fault block reservoir. Journal of China University of Petroleum(Edition of Natural Science), 2009, 33(1):83-86.
[15] YU W, LASHGARI H R, SEPEHRNOORI K. Simulation study of CO2 huff-n-puff process in Bakken tight oil reservoirs. SPE 169575, 2014.
[16] 张国强, 孙雷, 吴应川, 等.小断块油藏CO2、N2单井吞吐强化采油可行性对比研究.钻采工艺, 2008, 31(4):53-55. ZHANG G Q, SUN L, WU Y C, et al. Feasibility study on single well CO2,N2 huff and puff in small fault block reservoir. Drilling & Production Technology, 2008, 31(4):53-55.
[17] WANG L Z, YU W. Gas huff and puff process in Eagle Ford Shale:Recovery mechanism study and optimization. SPE 195185, 2019.
[18] 左青山, 温鸿滨, 芦维国, 等.断块油田不同方式注氮气的研究与实践.钻采工艺, 2007(5):42-44. ZUO Q S, WEN H B, LU W G, et al. Research and application of nitrogen injection by using different injection means in faultblock oilfield. Drilling & Production Technology, 2007(5):42-44.
[19] 朱青云, 兰小林. 断块油田注氮气的研究与实践. 油气井测试, 2008, 17(4):55-57. ZHU Q Y, LAN X L. Study and practice of nitrogen injection in fault flock oilfield. Well Testing, 2008, 17(4):55-57.
[20] 吕铁, 刘中春.缝洞型油藏注氮气吞吐效果影响因素分析.特种油气藏, 2015, 22(6):114-117. LYU T, LIU Z C. Analysis on influential factors of nitrogen huff and puff effect in fracture-vug type reservoir. Special Oil & Gas Reservoirs, 2015, 22(6):114-117.
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