Natural Gas Geoscience

Previous Articles     Next Articles

Effect of particle size on methane sorption capacity of shales

Kang Yi-li,Chen Yi-bin,Li Xiang-chen,You Li-jun,Chen Ming-jun   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China
  • Received:2016-09-18 Revised:2016-12-31 Online:2017-02-10 Published:2017-02-10

Abstract:

In order to research the effect of particle size on adsorption properties of shale,shale samples rich in gases are collected from the Silurian Longmaxi in the Sichuan Basin and four types of coal specimens are made.The grain diameters of these specimens are within the ranges of 1 700-3 350μm,850-1000μm,180-250μm and 106-131μm,respectively.The isothermal adsorption experiments were conducted under the condition of high pressure and high temperature,which are aimed at carrying out further study on the effect of the pore connectivity,specific surface area and roughness on the methane adsorption and the effect of the sensitivity of particle size.Results showed that methane adsorption capacity were negatively related to the particle size,the value of Langmuir volume decreased after showing sharp increase and then increased with the particle size going down.Specific surface area increased from 6.09m2/g to 8.81m2/g,while the particle size from 1 700-3 350μm down to 180-250μm.Furthermore,both value of pore volume and the rate of contribution on specific surface area whose diameter is less than 5nm increased from 57.94% to 80.36% and from 74.34% to 92.85%,respectively.It could be safely drawn out the conclusion that,(1)The pore connectivity got to be better with the decrease of particle size,which is actually conducive to improve the adsorption ability motivated by removing obstacles and optimizing path for the mass-transfer efficiency and methane adsorption of shale.(2)The smaller the particle size,the higher the quantity of the close pore which is exposed by crushing and the mesopore whose diameter is between 2nm and 5nm,pore volume and specific surface area has been greatly improved,the methane molecules have greater adsorption space to produce more of the adsorption quantity.(3)Considering the fact that the extent of pore roughness performed negative relationship to particle size,more considerable pore,organic and clay minerals are exposed while the particle size decreases,which makes the specific surface area increase in large region,as a consequence,supplying more high energy absorption sites on the pore surface are actually helpful to improve the adsorption ability.

Key words: Shale, Sichuan Basin, Particle size, Sorption capacity, Specific surface area, Pore roughness, Absorption sites

CLC Number: 

  • TE122.2

[1]Curtis J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.
[2]Mengal S,Wattenbarger R.Accounting for adsorbed gas in shale gas reservoirs[R].SPE 141085,2011.
[3]Chen Xinjun,Bao Shujing,Hou Dujie,et al.Methods and key parameters of shale gas resources evaluation[J].Petroleum Exploration and Development,2012,39(5):566-571.[陈新军,包书景,侯读杰,等.页岩气资源评价方法与关键参数探讨[J].石油勘探与开发,2012,39(5):566-571.]
[4][KG*6/7]Jia Chengzao,Zheng Min,Zhang Yongfeng.Unconventional hydrocarbon resources in China and the prospect of exploration and development[J].Petroleum Exploration and Development,2012,39(2):129-136.[贾承造,郑民,张永峰.中国非常规油气资源与勘探开发前景[J].石油勘探与开发,2012,39(2):129-136.]
[5]Chalmers G R L,Bustin R M.Lower Cretaceous gas shales in northeastern British Columbia;part I,Geological controls on methane sorption capacity[J].Bulletin of Canadian Petroleum Geology,2008,56/1:1-21.
[6][KG*6/7]Zhang Han,Zhu Yanming,Xia Xiaohong,et al.Comparison and explanation of the absorptivity of organic matters and clay minerals in shales[J].Journal of  Chian Coal Science,2013,38(5):812-816.[张寒,朱炎铭,夏筱红,等.页岩中有机质与黏土矿物对甲烷吸附能力的探讨[J].煤炭学报,2013,38(5):812-816.]
[7]Li Wuguang,Yang Shenglai,Chen Feng,et al.The sensitivity of shale gas adsorpotion and desorpotion with rising reservoir temperature[J].Mineral Petrol,2012,32(2):115-120.[李武广,杨胜来,陈峰,董谦,娄毅,王海洋.温度对页岩吸附解吸的敏感性研究[J].矿物岩石,2012,32(2):115-120.]
[8]Ross D J K,BustinR M.Sediment geochemistry of the lower Jurassic Gordondale member,northeastern British Columbia[J].Bulletin of Canadian Petroleum Geology,2006,54(4): 337-365.
[9]Guo S.Experimental study on isothermal adsorption of methane gas on three shale samples from Upper Paleozoic strata of the Ordos Basin[J].Journal of Petroleum Science and Engineering,2013,110:132-138.
[10]Chalmers G R L,Bustin R M.The organic matter distribution and methane capacity of the Lower Cretaceous strata of Northeastern British Columbia,Canada[J].International Journal of Coal Geology,2007,70(1-3):223-239.
[11]Ji Iiming,Qiu Junli,Zhang Tongwei,et al.Experiments on methane adsorption of common clay minerals in shale[J].Earth Science:Journal of China University of Geosciences,2012,37(5):1043-1050.[吉利明,邱军利,张同伟,等.泥页岩主要黏土矿物组分甲烷吸附实验[J].地球科学:中国地质大学学报,2012,37(5):1043-1050.]
[12]Li Dawei,Wang Deming,Gu Junjie,et al.Experiment research on coal physical temperature and particle oxygen sorption law with size variation[J].Coal Science and Technology,2008,36(2):42-44.[李大伟,王德明,顾俊杰,等.煤物理吸氧量随温度及粒径变化规律的试验研究[J].煤炭科学技术,2008,36(2):42-44.]
[13]Zhang Tianjun,Xu Hongjie,Li Shugang,et al.The effect of particle size on adsorption of methane on coal[J].Journal of Hunan University of Science & Technology:Natural Science Edition,2009,24(1):9-12.[张天军,许鸿杰,李树刚,等.粒径大小对煤吸附甲烷的影响[J].湖南科技大学学报:自然科学版,2009,24(1):9-12.]
[14]Langmuir I.The adsorption of gases on plane surfaces of glass,mica and platinum[J].Journal of the American Chemical Society,1918,40(9): 1361-1403.
[15]Sing K S W.Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Provisional)[J].Pure and Applied Chemistry,1998,54(11):2201-2218.
[16]Xiong J,Liu X,Liang L.Experimental study on the pore structure characteristics of the Upper Ordovician Wufeng Formation shale in the southwest portion of the Sichuan Basin,China[J].Journal of Natural Gas Science & Engineering,2015,22:530-539.
[17]Jin Teng Jingyi.Adsorption Science[M].Beijing:Chemical Industry Press,2006.[近藤精一.吸附科学[M].北京:化学工业出版社,2006.]
[18]Yu Bingsong.Classification and characterization of gas shale pore system[J].Earth Science Frontiers,2013,20 (4):211-220.[于炳松.页岩气储层孔隙分类与表征[J].地学前缘,2013,20(4):211-221.]
[19]Yang Feng,Ning Zhengfu,Kong Detao,et al.Pore structure of shales from high pres-sure mercury injection and nitrogen adsorption method[J].Natural Gas Geoscience,2013,24(3):450-455.[杨峰,宁正福,孔德涛,等.高压压汞法和氮气吸附法分析页岩孔隙结构[J].天然气地球科学,2013,24(3):450-455.]
[20]Hou Yuguang,He Sheng,Yi Jizheng,et al.Effect of pore structure on methane sorption capacity of shales[J].Petroleum Exploration and Development,2014,41(2):248-256.[侯宇光,何生,易积正,,等.页岩孔隙结构对甲烷吸附能力的影响[J].石油勘探与开发,2014,41(2):248-256.]
[21]Kang Yili,Chen Defei,Li Xiangchen.Effect of fracturing fluid treatment on pore structure of coal[J].Journal of China University of Petroleum,2014(5):102-108.[康毅力,陈德飞,李相臣.压裂液处理对煤岩孔隙结构的影响[J].中国石油大学学报:自然科学版,2014(5):102-108.]
[22]Tong Hongshu,Hu Baolin.Research on the fractal characteristics of pore of coal reservoirs tested with cryogenic nitrogen adsorption in the ordosbasin[J].Coal Technology,2004,23(7):1-3.[童宏树,胡宝林.鄂尔多斯盆地煤储层低温氮吸附孔隙分形特征研究[J].煤炭技术,2004,23(7):1-3.]
[23]Yang Feng,Ning Zhengfu,Wang Qing,et al.Thermodynamic analysis of methane adsorption on gas shale[J].Journal of Central South University:Science and Technology,2014(8):2871-2877.[杨峰,宁正福,王庆,等.甲烷在页岩上吸附的热力学[J].中南大学学报:自然科学版,2014(8):2871-2877.]
[24]Ji Liming,Luo Peng.Effect of sample size on volumetric determination of methane adsorption in clayminerals[J].Natural Gas Geoscience,2012,23(3):535-540.[吉利明,罗鹏.样品粒度对黏土矿物甲烷吸附容量测定的影响[J].天然气地球科学,2012,23(3):535-540.]

[1] Zhou Li-hong,Pu Xiu-gang,Xiao Dun-qing,Li Hong-xiang,Guan Quan-sheng,Lin Ling,Qu Ning. Geological conditions for shale oil formation and the main controlling factors for theenrichment of the 2nd member of Kongdian Formation in the Cangdong Sag, Bohai Bay Basin [J]. Natural Gas Geoscience, 2018, 29(9): 1323-1332.
[2] Zhao Wen-tao,Jing Tie-ya,Wu Bin,Zhou You,Xiong Xin. Controlling mechanism of faults on the preservation conditions of shale gas:A case study of Wufeng-Longmaxi Formations in Southeast Chongqing [J]. Natural Gas Geoscience, 2018, 29(9): 1333-1344.
[3] Xia Peng,Wang Gan-lu,Zeng Fan-gui,Mou Yu-liang,Zhang Hao-tian,Liu Jie-gang. The characteristics and mechanism of high-over matured nitrogen-rich shale gas of Niutitang Formation,northern Guizhou area [J]. Natural Gas Geoscience, 2018, 29(9): 1345-1355.
[4] . Feixianguan Formation lithofacies zoning and its geological significanceof eastern side of Kaijiang-Liangping Trough,NE Sichuan Basin [J]. Natural Gas Geoscience, 2018, 29(8): 1067-1077.
[5] Shi Jun,Zou Yan-rong,Yu Jiang,Liu Jia-jing. Paleoenvironment of organic-rich shale from the Lucaogou Fromationin the Fukang Sag,Junggar Basin,China [J]. Natural Gas Geoscience, 2018, 29(8): 1138-1150.
[6] Wang Peng-fei,Jiang Zhen-xue,Lü Peng,Jin Can,Li Xin,Huang Pu. Organic matter pores and evolution characteristics of shalesin the Lower Silurian Longmaxi Formation and the LowerCambrian Niutitang Formation in periphery of Chongqing [J]. Natural Gas Geoscience, 2018, 29(7): 997-1008.
[7] Kang Yi-li,Dou Lian-dong,You Li-jun,Chen Qiang,Cheng Qiu-yang. Ionic dissolution behaviors of organic shale soaked in oxidizing liquid for reservoirs stimulation [J]. Natural Gas Geoscience, 2018, 29(7): 990-996.
[8] Zeng Fan-hui,Wang Xiao-wei,Guo Jian-chun,Zheng Ji-gang,Li Ya-zhou,Xiang Jian-hua. A productivity model of volume fractured horizontal wells in shale gas basedon the continuous succession pseudo-steady state method [J]. Natural Gas Geoscience, 2018, 29(7): 1051-1059.
[9] Zhu Wei-yao,Ma Dong-xu. Effective stress characteristics in shale and its effect on productivity [J]. Natural Gas Geoscience, 2018, 29(6): 845-852.
[10] Yu Chuan,Zeng Chun-lin,Zhou Xun,Nie Hai-kuan,Yu Zhong-qiang. Tectonic preservation unit division and zoning evaluation of shale gasin the Lower Cambrian of Dabashan thrust belt [J]. Natural Gas Geoscience, 2018, 29(6): 853-865.
[11] Wang Xiang-zeng,Zhang Li-xia,Jiang Cheng-fu,Yin Jin-tao,Gao Chao,Sun Jian-bo,Yin Na,Xue Lian-hua. The effect of differential uplift on pore development of Chang 7 shale in Ordos Basin:Case studies of Ganquan area and Weibei uplift area [J]. Natural Gas Geoscience, 2018, 29(5): 597-605.
[12] Qiu Zhen,Zou Cai-neng,Li Xi-zhe,Wang Hong-yan,Dong Da-zhong,Lu Bin,Zhou Shang-wen,Shi Zhen-sheng,Feng Zi-qi,Zhang Meng-qi. Discussion on the contribution of graptolite to organic enrichment and reservoir of gas shale:A case study of the Wufeng-Longmaxi Formations in South China [J]. Natural Gas Geoscience, 2018, 29(5): 606-615.
[13] Wang Dao-bing,Ge Hong-kui,Yu Bo,Wen Dong-sheng,Zhou Jun,Han Dong-xu,Liu Lu. Study of the influence of elastic modulus heterogeneity on in-situ stress and its damage in gas shale reservoirs [J]. Natural Gas Geoscience, 2018, 29(5): 632-643.
[14] Long Sheng-xiang,Feng Dong-jun,Li Feng-xia,Du Wei. Prospect of the deep marine shale gas exploration and development in the Sichuan Basin [J]. Natural Gas Geoscience, 2018, 29(4): 443-451.
[15] He Ling-xiong,Song Wei-gang,An Sheng-ting,Xu Yong-feng,Shen Juan,Lu Chao,Wang Jun. Structural evolution and organic geochemical characteristics of source rocksin the Babaoshan Basin in eastern Kunlun area,Qinghai Province [J]. Natural Gas Geoscience, 2018, 29(4): 538-549.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!