郭天旭;任收麦;包书景;陈相霖;原园;周志;王胜建;

• 1:中国地质调查局油气资源调查中心
• 2:中国地质调查局非常规油气地质重点实验室
• 3:中国科学院地质与地球物理研究所
• 4:中国地质调查局

摘要(Abstract)：

页岩中吸附气含量是页岩总含气量中的重要组成部分。页岩吸附特性及其影响因素研究对于预测页岩总含气量及评价页岩气资源潜力具有重要的意义。柴达木盆地北缘侏罗系大煤沟组为一套湖相暗色泥页岩,分布广泛,有机碳含量高,已钻探获得页岩气发现。为研究这套泥页岩的吸附特征和影响因素,选取包括柴页1井岩心在内的40件泥页岩样品进行了有机地球化学、储层性能、岩石矿物学和含气量等一系列实验测试,分析了泥页岩有机碳含量等参数对吸附能力的影响。结果表明研究区大煤沟组泥页岩最大甲吸附气含量随压力增大而吸附能力逐渐增强,至一定程度达到饱和后不再增加;泥页岩中的有机碳、氯仿沥青"A"和黏土矿物可有效吸附和溶解甲烷,对吸附能力产生积极影响;在页岩热演化程度总体偏低的情况下,液态烃和可溶有机质大量存在并占据孔隙空间从而降低了泥页岩的比表面积,对其吸附能力产生消极影响。

关键词(KeyWords)： 吸附特征;影响因素;陆相页岩;侏罗系;柴达木盆地

Abstract:

Keywords:

基金项目(Foundation): 中国地质调查局项目(1212011221045);; 国家科技重大专项(2016ZX05034-002)

作者(Author): 郭天旭;任收麦;包书景;陈相霖;原园;周志;王胜建;

Email:

DOI: 10.19509/j.cnki.dzkq.2018.0622

参考文献(References)：

• [1] Curtis J B.Fractured shale-gas system[J].AAPG Bulletin,2002,86(11):1921-1938.
• [2]郭平,张伟,李赟,等.鄂尔多斯盆地陆相页岩吸附规律研究[J].地质科技情报,2017,36(5):54-59.
• [3]李向军,罗静兰,罗晓容,等.鄂尔多斯盆地长7段泥页岩系孔隙特征及其演化规律[J].地质科技情报,2017,36(4):19-28.
• [4]邹才能,杨智,陶士振,等.纳米油气与源储共生型油气聚集[J].石油勘探与开发,2012,39(1):13-26.
• [5] Luo X,Wang S,Wang Z,et al.Adsorption of methane,carbon dioxide and their binary mixtures on Jurassic shale from the Qaidam Basin in China[J].International Journal of Coal Geology,2015,150/151:210-223.
• [6] Zhang T,EllisG S,Ruppel S C,et al.Effect of organic-matter type and thermal maturity on methane adsorption in shale-gas system[J].Organic Geochemistry,2012,47(6):120-131.
• [7] Collell J,Galliero G,Gouth F,et al.Molecular simulation and modelisation of methane/ethane mixtures adsorption onto a microporous molecular model of kerogen voir conditions[J].Microporous and Mesoporous Materials,2014,197(11):194-203.
• [8] Mosher K,He J,Liu Y,et al.Molecular simulation of methane adsorption in micro-and mesoporous carbons with applications to coal and gas shale systems[J].International Journal of Coal Geology,2013,110:36-44.
• [9] Chen Ji,Xiao Xianming.Evolution of nanoporosity in organicrich shales during thermal maturation[J].Fuel,2014,129:173-181.
• [10]Chalmers G R L,Bustin R M.The organic matter distribution and methane capacity of the Lower Cretaceous strata of Northeastern British Colunbia,Canada[J].International Journal of Coal Geology,2007,70(1/3):223-239.
• [11]Chalmers G R L,Bustin R M.lower Cretaceous gas shales in northeastern British Columbia,PartⅠ:Geological controls on methane sorption capacity[J].Bulletin of Canadian Petroleum Geology,2008,56(1):1-21.
• [12]Ross D J K,Bustin R M.Shale gas potential of the Lower Jurassic Gordondale member in northeastern British Columbia,Canada[J].Bulletin of Canadian Petroleum Geology,2007,55(1):51-75.
• [13]赵靖舟,王芮,耳闯.鄂尔多斯盆地延长组长7段暗色泥页岩吸附特征及其影响因素[J].地学前缘,2016,23(1):146-153.
• [14]尹帅,丁文龙,刘建军,等.基于格子理论模型页岩储层气-固吸附分子动力学分析[J].地质科技情报,2015,34(5):86-90.
• [15]Zhang T W,Ellis G S,Ruppel S C,et al.Effect of organic matter type and thermal maturity on methane adsorption in shale gas systems[J].Organic Geochemistry,2012,47:120-131.
• [16]Schettler P D,Parmoly C R.The measurement of gas desorption isotherms for Devonian shale[J].GRI Devonian Gas Shale Technology Review,1990,7(1):4-9.
• [17]吉利明,邱军利,夏燕青,等.常见黏土矿物电镜扫描微孔隙特征与甲烷吸附性[J].石油学报,2012,33(2):249-256.
• [18]任收麦,邱海峻,尹成明,等.柴达木盆地油气资源及勘探开发潜力分析[J].中国西部油气地质,2006,2(2):168-174.
• [19]翟志伟,张永庶,杨红梅,等.柴达木盆地北缘侏罗系有效烃源岩特征及油气聚集规律[J].天然气工业,2013,33(9):36-42.
• [20]Yang Yongtai,Zhang Baomin,Zhao Changyi,et al.Mesozoic source rocks and petroleum systems of the northeastern Qaidam basin,northwest China[J].AAPG Bulletin,2004,88(1):115-125.
• [21]谢宗奎,李生德,车明,等.柴达木盆地侏罗系油气成藏模式与油气聚集规律[J].地球科学与环境学报,2007,29(2):166-169.
• [22]阎存凤,袁剑英,陈启林.柴达木盆地北缘东段中下侏罗统孢粉相及生烃潜力[J].地球科学进展,2007,22(12):1268-1273.
• [23]增维特,丁文龙,张金川.中国西北地区页岩气形成地质条件分析[J].地质科技情报,2013,32(4):139-150.
• [24]李浩涵,任收麦,郭天旭,等.柴达木盆地鱼卡凹陷侏罗系泥页岩地球化学特征及储集条件:以柴页1井为例[J].地质通报,2016,35(2/3):250-259.
• [25]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.
• [26]Ross D J K,Marc Bustin R.Impact of mass balance calculations on adsorption capacities in microporous shale gas reservoirs[J].Fuel,2007,86:2696-2706.
• [27]原园,姜振学,喻宸,等.高丰度低演化程度湖相页岩储层特征:以柴达木盆地北缘中侏罗统为例[J].地质学报,2016,90(3):541-552.
• [28]张林晔,李政,朱日房.页岩气的形成与开发[J].天然气工业,2009,29(1):124-128.
• [29]Lu Longfei,Cai Jingong,Liu Wenhui,et al.Occurrence and thermostability of absorbed organic matter on clay minerals in mudstones and muddy sediments[J].Oil Gas Geology,2013,34(1):16-26.
• [30]Raut U,Fama M,Teolis B D,et al.Characterization of porosity in vapor deposited amorphous solid water from methane adsorption[J].The Journal of Chemical Physica,2007,127:1-6.
• [31]Xue Haitao,Lu Shuangfang,Fu Xiaotai.Forecasting model of solubility of CH4,CO2and N2in crude oil[J].Oil&Gas Geology,2005,26(4):444-449.
• [32]Lu X C,Li F C.Waston A T.Adsorption measurements in Devonian shales[J].Fuel,1995,74:599-603.