溶剂萃取后火驱开采超稠油可行性研究

详细信息    查看全文 | 推荐本文 |

英文篇名：The Feasibility of Application of In-situ Combustion for Ultra-viscous Heavy Oil Post Solvent Extraction 作者：张弦 ; 车洪昌 ; 刘以胜 ; 张华北 英文作者：Zhang Xian;Che Hongchang;Liu Yisheng;Zhang Huabei;Petroleum Engineering Institute of Northeast Petroleum University;PetroChina Middle East; 关键词：稠油 ; 火烧油层 ; 烃类溶剂 ; 萃取 ; 试验 英文关键词：heavy oil;;in-situ combustion;;hydrocarbon solvent;;extraction;;experiment 中文刊名：FCYQ 英文刊名：Unconventional Oil & Gas 机构：东北石油大学石油工程学院;中油国际中东公司; 出版日期：2019-04-20 出版单位：非常规油气 年：2019 期：v.6;No.29 基金：中国石油科技创新基金研究项目“烃类溶剂辅助火驱原位催化改质超稠油技术研究”(2018D-5007-0212)资助 语种：中文; 页：FCYQ201902007 页数：5 CN：02 ISSN：61-1496/TE 分类号：56-60

摘要

应用动力学试验与燃烧管试验手段评价烃类溶剂萃取后转火驱开发的可行性。动力学试验结果表明,戊烷萃取后萃余物的高温氧化反应释放了较多的热量,随着高温反应的开始,温度升高了235℃,可以维持有效燃烧。燃烧管试验表明,萃余物燃烧平稳持续了330min,直至前缘突破。燃烧尾气中除了CO2、CO和O2外,还检测到由残存戊烷裂解生成的CH4。燃烧过程中萃余物能够维持较高的温度,使燃烧前缘平稳向前推进。前缘推进速度为0.212cm/min,燃烧区的平均温度为471℃。戊烷萃取后的超稠油萃余物能够以火驱的方式进行开采,证实了烃类溶剂萃取后转火驱开发技术的可行性。研究成果对拓展火烧油层开采超稠油的应用具有重要的指导意义。
        Kinetics and combustion tube experiments were carried out to investigate the feasibility of in-situ combustion post solvent extraction in an ultra-viscous heavy oil reservoir.Kinetics results showed that the crude post pentane extraction released a large amount of heat during combustion and the temperature was elevated by 235℃.The combustion tube experiment showed that combustion of crude sustained for 330 minutes after pentane extraction until fire breakthrough.CH4,resulting from pentane pyrolysis,was detected in the effluent gases in addition to CO2,CO and O2.The combustion front propagated at 0.212 cm/min and the average temperature was 471℃.It has proven that in-situ combustion can be effective in the situation where solvent extraction is applied beforehand.The research exhibits importance of extending application of in-situ combustion in ultra-viscous heavy oil reservoirs.

引文

[1]冯祥,宫汝祥,李敬松.多元热流体吞吐井间气窜程度表征与预测研究[J].非常规油气,2018,5(6):55-61.
    [2]张弦,刘永建.井下裂解提高稠油油藏蒸汽吞吐采收率[J].新疆石油地质,2011,32(5):508-511.
    [3]王学忠,朱桂林.阿拉德油田强水敏超稠油开发先导试验[J].非常规油气,2016,3(3):55-62.
    [4]刘如杰.超稠油组合式吞吐在曙光油田的应用[J].非常规油气,2018,5(5):68-74.
    [5]袁士宝,蒋海岩,王丽,等.稠油油藏蒸汽吞吐后转火烧油层适应性研究[J].新疆石油地质,2017,34(3):303-306.
    [6]赵法军,刘永建,吴永彬,等.稠油和沥青VAPEX技术影响因素的研究进展[J].化工进展,2012,31(7):1477-1483.
    [7]FRAUENFELD T,JOSSY C,RISPLER K.Evaluation of the bottom water reservoir VAPEX process[J].Journal of Canadian Petroleum Technology,2006,45(9):29-35.
    [8]YAZDANI A,MAINI B B.Effect of height and grain size on the production rates in the VAPEX process:experimental study[J].SPE Reservoir Evaluation&Engineering,2005,8(3):205-213.
    [9]程海清,刘宝良,赵庆辉,等.超稠油燃烧基础参数特征研究[J].特种油气藏,2001,8(2):81-86.
    [10]ZHANG X,LIU Q H,CHE H C.Parameters determination during in situ combustion of Liaohe heavy oil[J].Energy&Fuels,2013,27:3416-3426.
    [11]GUO K,LI H L,YU Z X.In-situ heavy and extra-heavy oil recovery:A review[J].Fuel,2016,185:886-902.
    [12]CRISTOFARI J,CASTANIER L M,KOVSCEK A R.Laboratory investigation of the effect of solvent injection on insitu combustion[J].SPE Journal,2008,13(2):153-163.