第39参第4期 2017年7月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)04039906
DOI:10.13639/j.odpt.2017.04.002
Vol. 39 No. 4 July 2017
致密油藏热水驱增油机理定性分析及定量评价
杨树坤张博赵广渊李翔郭宏峰中海油田服务股份有限公司油田生产事业部
引用格式：杨树坤，张博，赵广渊，李期，郭宏峰，致密油藏热水驱增油机理定性分析及定量评价【J.石油钻采工艺 2017,39(4): 399-404.
摘要：针对致密油藏提高采收率的需求，选取目标区块，利用油田现场提供的券心、原油等样品，采用室内实验研究了考虑启动压力变化的热水驱增油机理，并利用数值模拟方法对热水驱各增油机理进行了定量评价。室内实验结果表明，热膨胀作用、降低启动压力、热降黏作用、降低界面张力、改善相渗再线是致密油藏热水驱的驱油机理，且热膨胀和降低启动压力是主要增油机理。数值模数结累表明，1009C、150C热水驱，热膨账作用和降低启动压力作用增油贡献率最大（其中热断账作用贡献率分别为29.79%和33.28%，降低启动压力作用贡缺率分别为31.66%和30.48%)，其次是相渗改善和热降黏机理，降低界面张力机理的贡献率最低（分别为7.08%和6.27%),模拟结果进一步验证了实验研究结果的正确性。
关键词：致密油藏；热水驱；增油机理；室内实验；数值模拟
中图分类号：TE348
文献标识码：A
Qualitative analysis and quantitative evaluation on the stimulation mechanisms of hot water
floodingintightoil reservoirs
YANG Shukun,ZHANGBo,ZHAO Guangyuan, LIXiang,GUO Hongfeng Oijfield Production Department, China Oilfeld Services Limifed, Tianjin 300459, China
Citation: YANG Shukun, ZHANG Bo, ZHAO Guangyuan, LI Xiang, GUO Hongfeng. Qualitative analysis and quantitative eval-uation on the stimulation mechanisms of hot water flooding in tight oil reservoirs [J] . Oil Drilling & Production Technology, 2017, 39(4): 399-404.
Abstract: To enhance the recovery factor of tight oil reservoirs, the target block was selected. Then, based on the core and crude oil data collected in the field, the stimulation mechanisms of hot water flooding considering variable threshold pressure were investigated by means of laboratory experiment. And finally, all stimulation mechanisms of hot water flooding were quantitatively evaluated by using the numerical simulation method. The laboratory experiment results show that thermal expansion, threshold pressure decline, thermal viscosity reduction, interfacial tension decrease and relative permeability curve improvement are the oil displacement mechanisms of hot water flooding in tight oil reservoirs, and thermal expansion and threshold pressure decline are the main stimulation mechanisms. Nu-merical simulation results indicate that the contribution ratios of thermal expansion and threshold pressure decline are the highest when hot water flooding is carried out at 100 °C and 150 °C. The contribution ratio of thermal expansion is 29.79% and 33.28%, respectively and that of threshold pressure decline is 31.66% and 30.48%, respectively. Relative permeability improvement and thermal viscosity reduction take the second place, and the contribution ratio of interfacial tension decrease is the lowest (7.08% and 6.27%, respectively), Obviously, the correctness of experimental results is verified further by the simulation results.
Key words: tight oil reservoir; hot water flooding; stimulation mechanism; laboratory experiment; numerical simulation
第一作者：榜树坤（1986-),2013年半业于中国石油大学（东)油气田开发工程专业，茂项士学位，现主要从事来油工艺、低渗遗油藏开
发等方面研究，工程师。通试地址：(300459)天津市路活海洋高新技术开发区海川路1581号。E-mail：yangshukun2000@126 com
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