收稿日期: 2016-12-03
修回日期: 2017-05-09
网络出版日期: 2017-06-10
基金资助
国家科技重大专项(编号：2016ZX05056-001)资助.
Research on the microscopic distribution characteristics and storage capacity of CO2 with different displacement methods
Received date: 2016-12-03
Revised date: 2017-05-09
Online published: 2017-06-10
利用高温高压微观可视化实验研究不同驱油方式下CO2的分布特征及埋存机制，并通过图像分析计算CO2的埋存潜力。实验结果表明：CO2非混相驱时，自由态CO2主要分布于模型顶部，埋存机制主要为构造埋存；CO2混相驱时，模型中上部主要聚集自由态CO2，而中下部为油气混相带，埋存机制主要为构造埋存及原油中的溶解埋存；非混相水驱交替时的自由态CO2波及区从主流线向两侧扩散，越靠近采出端扩散程度越低，并且CO2溶解于波及区内的注入水，埋存机制主要为构造埋存及水中的溶解埋存；混相水气交替和水驱后CO2混相驱时CO2的分布状况基本一致，混相态和自由态CO2基本都离散分布于模型中，同时注入水中溶有CO2，埋存机制主要为构造埋存及油水中的溶解埋存。埋存量计算结果表明，混相条件下埋存量远高于非混相条件，构造埋存是最主要的埋存机制，同时水驱后CO2混相驱的埋存量较高，说明水驱后的油藏也是CO2埋存的理想场所。
郝永卯，韦馨林，董承顺 . 不同驱油方式CO2微观分布特征及埋存量研究[J]. 天然气地球科学, 2017 , 28(6) : 846 -851 . DOI: 10.11764/j.issn.1672-1926.2017.06.008
The form and distribution of CO2 under different displacement methods has been studied by visualization experimental equipment with the condition of high pressure and high temperature,and the storage capacity of CO2 has also been investigated by image analysis technology.Experimental results show that,free state CO2 mainly distributed on the top of the model under the immiscible displacement,and the storage mechanism is structure and stratigraphic trapping.While under the miscible displacement it mainly distributed on the middle and upper parts of the model,and the oil and CO2 miscible zone will locate in the lower part of the model,and the storage mechanism is structure and stratigraphic trapping and dissolution trapping in the remaining oil.During the experiment of water alternating gas(WAG) displacement,the sweep area of free state CO2 spreads from the mainstream line to both sides,the diffusion degree gradually decreases from the inject end to the output end,and the CO2 is dissolved in the injected water,and the storage mechanism is structure and stratigraphic trapping,dissolution trapping in the injected water and the remaining oil.The distribution of CO2 under the WAG miscible displacement and CO2 miscible displacement after water displacement is consistent,in which the free state CO2 and miscible CO2 discretely distributed in the model,and the CO2 was dissolved in the injected water,and the storage mechanism is structure and stratigraphic trapping,dissolution trapping in the injected water and the remaining oil.The calculation of storage capacity shows that,the storage capacity under the miscible condition is higher than that under the immiscible condition,and structure trapping is the main form of CO2 storage.The storage capacity of CO2 miscible displacement after water flooding is excellent,which means the reservoir after water flooding is anideal place for CO2 storage.
[1]Yao Zhenjie,Huang Chunxia,Duan Jingjie,et al.CO2 displacement geological storage potential evaluation of Yanchang Oilfield[J].Journal of Liaoning University of Petroleum & Chemical Technology,2016,36(3):43-45.[姚振杰,黄春霞,段景杰,等.延长油田CO2驱埋存潜力评价方法[J].辽宁石油化工大学学报,2016,36(3):43-45.]
[2]Zhang L,Wang S,Zhang L,et al.Assessment of CO2 EOR and its geo-storage potential in mature oil reservoirs,Shengli Oilfield,China[J].Petroleum Exploration & Development,2009,36(6):737-742.
[3]Li D X,Zhang L,Liu Y M,et al.CO2-triggered gelation for mobility control and channeling blocking during CO2 flooding processes[J].Petroleum Science,2016,13(2):247-258.
[4]Xian Xuefu，Yin Hong，Zhou Junping，et al.A new experimental apparatus for fracturing shale gas reservoir to enhance permeability with supercritical carbon dioxide[J].Journal of Southwest Petroleum University:Science & Technology Edition，2015，37（3）：1-8.[鲜学福，殷宏，周军平，等.页岩气藏超临界CO2 致裂增渗实验装置研制[J].西南石油大学学报:自然科学版，2015，37（3）：1-8.]
[5]Saini D,Jimenez I.Evaluation of CO2-EOR and storage potential in mature oil reservoirs[J].Journal of Petroleum Science & Engineering,2014,134.
[6]Zhang Yanyu，Li Yanjie，Sun Xiaofei，et al.A new screening evaluation method for candidate reservoirs by CO2 injection miscible flooding[J].Journal of Southwest Petroleum University:Science & Technology Edition，2015，37（4）：143-148.[张艳玉，李延杰，孙晓飞，等.注CO2 混相驱候选油藏筛选评价新方法[J].西南石油大学学报:自然科学版，2015，37（4）：143-148.]
[7]Zhang Liang,Ren Shaoran,Zhang Yin,et al.Evaluation methods of CO2 EOR and geo-sequestration potential[J].Petroleum Geology and Oilfield Development in Daqing,2009,28(3):116-121.[张亮,任韶然,张银,等.油田CO2EOR及地质埋存潜力评估方法[J].大庆石油地质与开发,2009,28(3):116-121.]
[8]Du Jianfen,Chen Jing,Li Qiu,et al.Experimental study on micro-displacement oil for different CO2displace-ment mechanism[J].Journal of Southwest Petroleum University:Science & Technology Edition,2012,34(6):131-135.[杜建芬,陈静,李秋,等.CO2微观驱油实验研究[J].西南石油大学学报:自然科学版,2012,34(6):131-135.]
[9][KG*5/6]Liu Xuewei,Mei Shisheng,Yang Zhengming.Experimental study on micro-displacement oil for CO2 immiscible flooding[J].Special Oil & Gas Reservoirs,2006,13(3):91-93.[刘学伟,梅士盛,杨正明.CO2非混相驱微观实验研究[J].特种油气藏,2006,13(3):91-93.]
[10]Wang Ming,Du Li,Nie Fajian,et al.Microscopic visualization simulation of CO2/water alternating flooding[J].Science & Technology Review,2014,32(36):80-85.[王明,杜利,聂法健,等.高温高压CO2/水交替微观驱油机制及运移特征[J].科技导报,2014,32(36):80-85.]
[11]Chen Yanfang,Liao Xinwei,Zhao Hongjun,et al.Determination two key dissolution coefficients in calculation of CO2storage capacity[J].Science & Technology Review,2010,28(1):98-101.[陈艳芳,廖新维,赵宏军,等.计算CO2在油藏的埋存量时两个关键系数的确定[J].科技导报,2010,28(1):98-101.]
[12]Zhang L,Li X,Ren B,et al.CO2storage potential and trapping mechanisms in the H-59 block of Jilin Oilfield,China[J].International Journal of Greenhouse Gas Control,2016,49:267-280.
[13]Zhang L,Ren S,Ren B,et al.Assessment of CO2,storage capacity in oil reservoirs associated with large lateral/underlying aquifers：Case studies from China[J].International Journal of Greenhouse Gas Control,2011,5(4):1016-1021.
[14][JP3]Liu Guangqi,Ma Lianxiang,Xiang Shuguang.Handbook of Physical-chemical Properties：Inorganic Volume[M].Beijing:Chemical Industry Press,2013:66,85.[刘光启,马连湘,项曙光.化学化工物性数据手册:无机卷[M].北京:化学工业出版社,2013:66,85.]
[15]Xue H,Lu S,Fu X.Forecasting model of solubility of CH4,CO2 and N2 in crude oil[J].Oil & Gas Geology,2005,26(4):444-449.
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