一种阴-非离子表面活性剂在安塞油田长6油藏适应性研究
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摘要
对室内研发了一种阴-非离子型表面活性剂开展油藏适应性研究,测试了界面张力、乳化能力、油藏配伍性、岩心室内驱油实验。结果表明,该表面活性剂与安塞油田长6油藏原油的最终界面张力维持在10-3m N/m数量级,耐盐、耐温性较好,对原油具有较强的乳化能力,并且与安塞油田注入水配伍性良好,0.5%的质量分数下较水驱提高采收率12%以上,能满足安塞油田表面活性剂驱油的要求。现场试验10个井组,对应油井含水下降3.7%、增油效果明显,表明该表面活性剂在安塞油田长6油藏具有较好的适应性。
A study on the adaptability of a negative and nonionic surfactants was developed in the laboratory, and the interfacial tension, emulsification, reservoir compatibility and core oil displacement experiments were tested. The results show that the final interfacial tension between the surfactant and the Ansai oilfield Chang 6 oil reservoir is maintained at the magnitude of 10-3 m N/m, with good salt tolerance and temperature resistance, strong emulsifying ability to crude oil and good compatibility with the injection water in Ansai oilfield. The oil recovery of the oilfield in the oilfield of Ansai is better than that of water flooding in 0.5 %.The requirement of surfactant flooding in oilfield. The field test of 10 wells, the water cut in the oil well is reduced by 3.7 %, and the effect of oil increasing is obvious. It shows that the surfactant has good adaptability in the Chang 6 reservoir in Ansai oilfield.
A study on the adaptability of a negative and nonionic surfactants was developed in the laboratory, and the interfacial tension, emulsification, reservoir compatibility and core oil displacement experiments were tested. The results show that the final interfacial tension between the surfactant and the Ansai oilfield Chang 6 oil reservoir is maintained at the magnitude of 10-3 m N/m, with good salt tolerance and temperature resistance, strong emulsifying ability to crude oil and good compatibility with the injection water in Ansai oilfield. The oil recovery of the oilfield in the oilfield of Ansai is better than that of water flooding in 0.5 %.The requirement of surfactant flooding in oilfield. The field test of 10 wells, the water cut in the oil well is reduced by 3.7 %, and the effect of oil increasing is obvious. It shows that the surfactant has good adaptability in the Chang 6 reservoir in Ansai oilfield.
引文
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[2]刘方,李玉华,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):9-11.
[3]葛际江,张贵才,蒋平,等.驱油用表面活性剂的发展[J].油田化学,2007,24(3):287-292.
[4]韩玉贵.耐温抗盐驱油用化学剂研究进展[J].西南石油大学学报(自然科学版),2011,33(3):149-153.
[5]ADIBH ATLA B,MOHANTY K K.Oil recovery from fractured carbonates by surfactant-aided gravity drainage:laboratory experiments and mechanistic simulations[Z].SPE99773,2006.
[6]陈刚,宋莹盼,唐德尧,等.表面活性剂驱油性能评价及其在低渗透油田的应用[J].油田化学,2014,31(3):410-418.
[7]张富美,施冬,张春生,等.安塞油田王窑区裂缝性储层注水综合研究[J].中外能源,2011,9(16):47-50.
[8]孙晓瑞.安塞油田王窑区裂缝分布特征及改善开发效果研究[D].荆州:长江大学硕士学位论文,2012.
[9]赵俊英.安塞油田长2储层特征与流动单元研究[D].西安:西北大学硕士学位论文,2005.
[10]侯吉瑞,康万利,吴文祥,等.石油羧酸盐在高岭土上静吸附规律的实验研究[J].油田化学,1994,11(4):340-344.
[11]李俊.低渗透油藏降压增注技术研究[D].成都:成都理工大学硕士学位论文,2011.
[12]孙春辉.低渗透高温油藏活性水降压增注研究[D].北京:中国科学院硕士学位论文,2010.
[13]宫军,徐文波,陶洪辉.纳米液驱油技术研究现状[J].天然气工业,2006,26(5):105-107.
[14]唐宪法,赖艳玲,周洲.复合驱提高原油采收率实验研究[J].石油钻采工艺,2006,29(6):47-49.
[15]吴文祥.聚合物及表面活性剂二元复合体系驱油物理模拟实验[J].大庆石油学院学报,2005,29(6):98.
[16]杨小莉,陆婉珍.有关原油乳状液稳定性研究[J].油田化学,1998,15(1):87-96.
[17]王翔,代加林,杨梦.高分子表面活性剂的发展及应用现状[J].塑料工业,2007,35(S1):22-24+35.
[18]夏惠芬,刘仁强,鞠野,等.超低界面张力下甜菜碱型表面活性剂对水驱残余油的作用机理[J].大庆石油学院学报,2006,(6):24-27.
[19]高亭松.探究表面活性剂驱油新技术[J].化学工程与装备,2014,(6):152-156.
[20]焦学瞬,张春霞,张洪忠,等.表面活性剂分析[M].北京:化学工业出版社,2009.
[21]杨剑,黄战卫,董小丽,等.安塞油田表面活性剂驱油室内研究[J].油田化学,2015,34(4):559-563.
[22]于涛,刘华沙,王超群,等.烷基芳基磺酸钠对烷烃的乳化性能[J].应用化学,2011,28(5):37-41.
[23]BRYAN J,KANTZAS A.Potential for alkali-surfactant flooding in heavy oil reservoirs through oil-in-water emulsification[J].J Can Pet Technol,2009,48(2):37-46.