Natural Gas Geoscience

Previous Articles     Next Articles

The Pore Size Distribution and Its Relationship with Shale Gas Capacity in Organic-rich Mudstone of Wufeng-Longmaxi Formation,Sichuan Basin

ZHANG Yu,YAN Jian-ping,JIA Xiang-juan,LI Yan-fang,SHAO De-yong,YU Ping,ZHANG Tong-wei   

  1. School of Earth Sciences & Key Laboratory of Western China′s Mineral Resources of Gansu Province, Lanzhou University,Lanzhou 730000,China
  • Received:2015-04-28 Revised:2015-05-22 Online:2015-09-10 Published:2015-09-10

Abstract:

Pore size distribution for 23 fresh outcrop shale samples collected from Shuanghe Town,Changning County and 14 core samples collected from the well Qianqian 1 in southeast Chongqing,Sichuan Basin were investigated by low pressure nitrogen adsorption.The main factors controlling pore development and gas accumulation in shales were discussed by integrating total organic carbon(TOC),mineralogy and shale gas content.The results show that open slit-like and parallel plate structure are major pore types with an average pore diameter of 3.76-8.53nm, and 2-30nm mesopores are dominated.The BET surface area and total pore volume are high in the Wufeng Formation and lower part of the Longmaxi Formation,and the decrease in the upper part of the Longmaxi Formation,in consistent with the trends of TOC,suggesting that organic matter is the key controlling factor on the shale pore development.In addition,samples with higher content of clay minerals but similar TOC content have larger specific surface area,and the clay-mineral-hosted pores are present.The Wufeng Formation and lower part of the Longmaxi Formation in the Sichuan Basin are preferred layers of shale reservoir fracturing because of high TOC,high rock brittleness and high gas content.

Key words: Sichuan Basin, Shale nanopore, Nitrogen adsorption, Gas capacity, Specific surface area

CLC Number: 

  • TE122.2
[1]Jarvie D M,Hill R J,Ruble T E,et al.Unconventional shale-gas systems:The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment[J].AAPG Bulletin,2007,91(4):475-499.
[2]Montgomery S L,Jarvie D M,Bowker K A,et al.Mississippian Barnett Shale,Fort Worth Basin,north-central Texas:Gas-shale play with multi-trillion cubic foot potential[J].AAPG Bulletin,2005,89(2):155-175.
[3]Ross D J K,Bustin R M.Characterizing the shale gas resource potential of Devonian-Mississippian strata in the Western Canada sedimentary basin:Application of an integrated formation evaluation[J].AAPG Bulletin,2008,92(1):87-125.
[4]Schettler Jr P D,Parmely C R.Contributions to total storage capacity in Devonian shales[C]//SPE Eastern Regional Meeting.Society of Petroleum Engineers,1991.
[5]Sondergeld C H,Ambrose R J,Rai C S,et al.Micro-structural studies of gas shales[C]//SPE Unconventional Gas Conference.Society of Petroleum Engineers,2010.
[6][JP2]Ross D J K,Marc Bustin R.The importance of shale composition and pore structure upon gas storage potential of shale gas reservoirs[J].Marine and Petroleum Geology,2009,26(6):916-927.
[7]Milner M,McLin R,Petriello J.Imaging texture and porosity in mudstones and shales:Comparison of secondary and ion-milled backscatter SEM methods[C]//Canadian Unconventional Resources and International Petroleum Conference.Society of Petroleum Engineers,2010.
[8]Schieber J.Common themes in the formation and preservation of intrinsic porosity in shales and mudstones-illustrated with examples across the Phanerozoic[C]//SPE Unconventional Gas Conference.Society of Petroleum Engineers,2010.
[9]Loucks R G,Reed R M,Ruppel S C,et al.Spectrum of pore types and networks in mudrocks and a descriptive classification for matrix-related mudrock pores[J].AAPG Bulletin,2012,96(6):1071-1098.
[10][JP2]Rouquerol J,Avnir D,Fairbridge C W,et al.Recommendations for the characterization of porous solids(Technical Report)[J].Pure and Applied Chemistry,1994,66(8):1739-1758.
[11]Yang Y,Aplin A C.Influence of lithology and compaction on the pore size distribution and modelled permeability of some mudstones from the Norwegian margin[J].Marine and Petroleum Geology,1998,15(2):163-175.
[12]Zhang Xiaolong,Li Yanfang,Lv Haigang,et al.Relationship between organic matter characteristics and depositional environment in the Silurian Longmaxi Formation in Sichuan Basin[J].Journal of Coal Society,2013,38(5):850-856.[张小龙,李艳芳,吕海刚,等.四川盆地志留系龙马溪组有机质特征与沉积环境的关系[J].煤炭学报,2013,38(5):851-856.]
[13]Rouquerol J,Llewellyn P,Rouquerol F.Is the BET equation applicable to microporous adsorbents[J].Studies in surface science and catalysis,2007,(160):49-56.
[14]Heng Shanjin,Fu Jianxiuwen,Zuo Tengzhengzhao,et al.The chemical structure of asphaltene derived from coal hydrogenation:Secondary hydrogenation reaction of asphaltene[J].The Chemical Society of Japan,1992,71(1):25-33.[横山晋,福[FJF]间[FJJ]秀文,佐藤正昭,等.アスファルテンの化学構造から誘導された石炭:アスファルテン二次水素化反応[J].日本エネルギー学会誌,1992,71(1):25-33.]
[15][JP2]Llewellyn P L,Bourrelly S,Serre C,et al.High uptakes of CO2 and CH4 in mesoporous metal organic frameworks MIL-100 and MIL-101[J].Langmuir,2008,24(14):7245-7250.
[16][JP2]Labani M M,Rezaee R,Saeedi A,et al.Evaluation of pore size spectrum of gas shale reservoirs using low pressure nitrogen adsorption,gas expansion and mercury porosimetry:A case study from the Perth and Canning Basins,Western Australia[J].Journal of Petroleum Science and Engineering,2013,112:7-16.
[17]Slatt R M,Abousleiman Y.Merging sequence stratigraphy and geomechanics for unconventional gas shales[J].The Leading Edge,2011,30(3):274-282.
[18]Groen J C,Peffer L A A,Pérez-Ramírez J.Pore size determination in modified micro-and mesoporous materials.Pitfalls and limitations in gas adsorption data analysis[J].Microporous and Mesoporous Materials,2003,60(1):1-17.
[19]Pu Boling,Dong Dazhong,Er Chuang,et al.Favorable reservoir characteristics of the Longmaxi shale in the southern Sichuan Basin and their influencing factors[J].Natural Gas Industry,2013,33(12):41-47.[蒲泊伶,董大忠,耳闯,等.川南地区龙马溪组页岩有利储层发育特征及其影响因素[J].天然气工业,2013,33(12):41-47.]
[20]Maliva R G,Siever R.Diagenetic replacement controlled by force of crystallization[J].Geology,1988,16(8):688-691.
[21][JP2]Bi He,Jiang Zhenxue,Li Peng,et al.Adsorption characteristic and influence factors of Longmaxi shale in southeastern Chongqing[J].Narural Gas Geoscience,2014,25(2):302-310.[毕赫,姜振学,李鹏,等.渝东南地区龙马溪组页岩吸附特征及其影响因素[J].天然气地球科学,2014,25(2):302-310.]
[22]Loucks R G,Reed R M,Ruppel S C,et al.Morphology,genesis,and distribution of nanometer-scale pores in siliceous mudstones of the Mississippian Barnett Shale[J].Journal of Sedimentary Research,2009,79(12):848-861.
[23]Blanc G,Bonneau S,Biagianti S,et al.Description of the larval stages of Anguillicola crassus(Nematoda,Dra-cunculoidea)using light and scanning electron microscopy[J].Aquatic Living Resources,1992,5(4):307-318.
[24]Tian H,Pan L,Xiao X,et al.A preliminary study on the pore characterization of Lower Silurian black shales in the Chuandong Thrust Fold Belt,southwestern China using low pressure N2 adsorption and FE-SEM methods[J].Marine and Petroleum Geology,2013,48:8-19.
[25]Yan Jianping,Zhang Tongwei,Li Yanfang,et al.Effect of the organic matter characteristics on methane adsorption in shale[J].Journal of Coal Society,2013,38(5):805-811.[闫建萍,张同伟,李艳芳,等.页岩有机质特征对甲烷吸附的影响[J].煤炭学报,2013,38(5):805-811.]
[26]Krishna R.Describing the diffusion of guest molecules inside porous structures[J].The Journal of Physical Chemistry C,2009,113(46):19756-19781.
[27]Xie Qingming,Chen Lijun,Liu Junfeng,et al.Well logging interpretation and evaluation of gas shale reservoir at Longmaxi Formation in Qianjiang area of Southeast of Chongqing area[J].Progress in Geophysics,2014(3):1312-1318.[谢庆明,程礼军,刘俊峰,等.渝东南黔江地区龙马溪组页岩气储层测井解释评价研究[J].地球物理学进展,2014(3):1312-1318.]
[1] . 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.
[2] 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.
[3] 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.
[4] 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.
[5] Zhu Hua, Yang Guang, Yuan Bao-guo, Ying Dan-lin, Dai Xin, Zhou Hong-fei, Xu Shi-qi, Tan Jian-kang. Geological conditions,resource potential and exploration direction of conventional gas in Sichuan Basin [J]. Natural Gas Geoscience, 2018, 29(10): 1475-1485.
[6] Chen Shuang,Huang Hai-ping,Zhang Bo-yuan,Xie Zeng-ye. Difference in gas generation from thermal cracking of oil within reservoir  and from residual bitumen within source rock and its geological significance [J]. Natural Gas Geoscience, 2017, 28(9): 1375-1384.
[7] . Main controlling factors and distribution of high quality reservoirs of deep buried dolomite in typical craton basins in China [J]. Natural Gas Geoscience, 2017, 28(8): 1165-1175.
[8] Shen An-jiang,Chen Ya-na,Pan Li-yin,Wang Long,She Min. The facies and porosity origin of reservoirs:Case studies from Longwangmiao Formation of Cambrian,Sichuan Basin,and their implications to reservoir prediction [J]. Natural Gas Geoscience, 2017, 28(8): 1176-1190.
[9] Zhang Lin,Wan Yu-jin,Yang Hong-zhi,Su Yun-he,Zhang Man-lang. The type and combination pattern of karst vuggy reservoir in the fourth member of the Dengying Formation of Gaoshiti structure in Sichuan Basin [J]. Natural Gas Geoscience, 2017, 28(8): 1191-1198.
[10] Zhai Xiu-fen,Wang Ze-cheng,Luo Ping,Wang Tong-shan,Shi Shu-yuan,Zhang Hong. Characteristics and origin of microbial dolomite reservoirs in Upper Sinian Deingying Formation,eastern Gaoshiti area,Sichuan Basin,SW China [J]. Natural Gas Geoscience, 2017, 28(8): 1199-1210.
[11] Zhang Guang-rong,Zhang Xuan,Yu Yi,Zhang Hong-ying,Liao Qi,Zhang Fu-hong,Zhao Ai-lin,Liang Han. Key techniques for prediction of fractured carbonate reservoirs in deep marine carbonate rocks in Sichuan Basin:A case study of the Maokou Formation in SN area [J]. Natural Gas Geoscience, 2017, 28(8): 1235-1242.
[12] Xiong Lian-qiao,Yao Gen-shun,Ni Chao,Xiong Shao-yun,Shen An-jiang,Zhou Gang,Hao Yi. Characteristics,controlling factors and evolution of the Middle Devonian GuanwushanFormation reservoirs in Longmenshan area,northwestern Sichuan,China [J]. Natural Gas Geoscience, 2017, 28(7): 1031-1042.
[13] Zhang Da-zhi. Characterization of microscopic pore structure of tight sandstone reservoirs through nitrogen adsorption experiment: Case study of Shahezi Formation in Xujiaweizi Fault Depression,Songliao Basin,China [J]. Natural Gas Geoscience, 2017, 28(6): 898-908.
[14] He Zhi-liang,Hu Zong-quan,Nie Hai-kuan,Li Shuang-jian,Xu Jin. Characterization of shale gas enrichment in the Wufeng-Longmaxi Formation in the Sichuan Basin and its evaluation of geological construction-transformation evolution sequence [J]. Natural Gas Geoscience, 2017, 28(5): 724-733.
[15] Zhai Li-na,Ni Yun-yan,Wu Chao-dong,Gao Jin-liang. Geochemical characteristics of the natural gas from the Xujiahe Formation in the central Sichuan Basin,China [J]. Natural Gas Geoscience, 2017, 28(4): 539-549.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] CHENG Yong-sheng ;CHEN Song-ling ;WANG Hai;CANG Feng ;LIU Juan . LOWER TERTIARY PETROLEUM SYSTEM INLETING SAG, BOHAI BAY BASIN[J]. Natural Gas Geoscience, 2007, 18(6): 854 -858 .
[2] WU Fang-Fang, SHU Guang-Wei, WANG Hui, ZHANG Shui-Chang, JIN Jiang, GU Jiao-Yuan, ZHANG Bao-Shou, SU Jin. Multiple Hydrocarbon Migration and Accumulation of TZ12 Structure, Tarim Basin[J]. Natural Gas Geoscience, 2009, 20(1): 76 -85 .
[3] HUANG Wei-Dong, LI Xin-Ning, LI Liu-Zhong, XU Fa-Zheng, WANG Rui-Ying, CHEN Xiao-Hong, MIAO Dian-Guo. Prospect of Coalbed Methane Exploration in Santanghu Basin[J]. Natural Gas Geoscience, 2011, 22(4): 733 -737 .
[4] SHENG Xiu-jie,JIN Zhi-jun,WANG Yi-gang,XIAO Ye. An Improved Non-deterministic Volumetric Method for Play or Trap with Quantifying Geological Scenarios[J]. Natural Gas Geoscience, 2015, 26(3): 456 -465 .
[5] Wang Yu-man,Li Xin-jing,Dong Da-zhong,Zhang Chen-chen,Wang Shu-fang,Huang Jin-liang,Guan Quan-zhong. Development mechanism of fracture pores in marine shale and its geological significance[J]. Natural Gas Geoscience, 2016, 27(9): 1602 -1610 .
[6] Pei Li-xin,Gang Wen-zhe,Zhu Chuan-zhen,Liu Ya-zhou,He Wen-jun,Xiang Bao-li,Dong Yan. Carbon isotopic composition and source of hydrocarbon gases in the Junggar Basin[J]. Natural Gas Geoscience, 2018, 29(7): 1020 -1030 .
[7] Li Hong-zhe,Ma Feng,Xie Mei,Yang Wei,Zhang Cheng-juan,Wang Pu,Zhao Jian. Caprocks characteristics and their control on hydrocarbon accumulation of bedrockgas reservoirs in eastern segment of Alkin Piedmont,Qaidam Basin[J]. Natural Gas Geoscience, 2018, 29(8): 1102 -1110 .
[8] Li Tao,Li Min,Zhang Lie-hui,Tian Shan-chuan,Zhao Xiao-yu,Zheng Ling-li. Study on the relationship of tortuosity with pore structure in micro-porous media[J]. Natural Gas Geoscience, 2018, 29(8): 1181 -1189 .