基于重量法的页岩气高压等温吸附研究

高永利; 李腾; 关新; 牛慧赟; 孔旭

doi:10.11781/sysydz201804566

基于重量法的页岩气高压等温吸附研究

doi: 10.11781/sysydz201804566

高永利^1,2,
李腾¹,
关新³,
牛慧赟⁴,
孔旭⁴

1. 西安石油大学石油工程学院, 西安 710065;
2. 西安石油大学陕西省油气田特种增产技术重点实验室, 西安 710065;
3. 西南石油大学地球科学与技术学院, 成都 610500;
4. 中国石油勘探开发研究院西北分院, 兰州 730020

基金项目:

国家自然科学基金重大项目“中国非常规油气储层特征、分类与典型地质模型建立”（41390451）资助。

详细信息

作者简介:
高永利(1964-),男,硕士,教授,从事油气田开发地质研究。E-mail:gyli888@163.com。

中图分类号: TE132.2
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出版历程
- 收稿日期: 2017-10-25
- 修回日期: 2018-05-14
- 刊出日期: 2018-07-28

Mass method adsorption characteristics of shale gas under high pressure

1. College of Petroleum Engineering, Xi'an Shiyou University, Xi'an, Shaanxi 710065, China;
2. Shaanxi Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi'an Shiyou University, Xi'an, Shaanxi 710065, China;
3. School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
4. Research Institute of Petroleum Exploration and Development-Northwest, Lanzhou, Gansu 730020, China

摘要

摘要: 基于重量法等温吸附仪，开展了页岩气的高压等温吸附测试。实验结果表明，低压下页岩气吸附特征符合Langmuir模型，在实验压力超过10~12 MPa后，页岩吸附表现出了明显的过剩吸附。高压下，样品桶体积以指数形式逐渐降低，这与高压下样品桶的压缩性有关。页岩样品的体积则呈指数形式增加，并在较小的压力范围内趋于平衡，这与页岩对氦气的微量吸附有关。基于最大过剩吸附后页岩过剩吸附量与气相甲烷密度拟合得到的吸附相甲烷密度在不同最大测试压力下呈现动态变化，以最大过剩吸附量后连续2个压力点测得的过剩吸附量与气相甲烷密度拟合获得的吸附相甲烷密度，最接近页岩表面吸附平衡时吸附相甲烷密度。综合考虑样品桶体积、样品体积及最大过剩吸附前后吸附相甲烷体积的动态变化，能够对页岩气绝对吸附量进行准确校正，实现页岩高压等温吸附特征的精细描述，且页岩高压绝对吸附特征符合Langmuir吸附模型。
- 过剩吸附 /
- 绝对吸附 /
- 体积动态变化 /
- 吸附相密度 /
- 页岩
Abstract: The isothermal adsorption characteristics of shale gas under high pressure are investigated with a magnetic suspension mass method isothermal adsorption instrument. The experimental results showed that the adsorption characteristics of shale gas at low pressure conform to the Langmuir model. After the experimental pressure exceeds 10-12 MPa, the adsorption of shale shows obvious excess adsorption. Under high pressure, the sample container volume decreases in an exponential manner, which is related to the compressibility of the sample container under high pressure. The volume of shale samples increases exponentially and tends to equilibrate within a relatively small pressure range, which is related to the slight adsorption of He by shales. The densities of adsorbed phase CH₄, acquired from the linear fitting with the excess adsorption capacities and the densities of gaseous phase CH₄, are also dynamic. The adsorbed phase CH₄ density is close to the true one when using the contiguous excess adsorption capacities and the densities of gaseous phase CH₄ after the maximum excess adsorption. Combined with the dynamic changes of sample container volume, sample volume and the adsorbed phase CH₄ volume before and after the maximum excess adsorption, the absolute adsorption capacities can be calculated, which can present the adsorption characteristics of shale gas accurately. The absolute adsorption of shale gas under high pressure also follows the Langmuir model.
- excess adsorption /
- absolute adsorption /
- volume dynamic change /
- adsorbed phase methane density /
- shale

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参考文献(41)

[1]	王红军,马锋,童晓光,等.全球非常规油气资源评价[J].石油勘探与开发,2016,43(6):850-862. WANG Hongjun,MA Feng,TONG Xiaoguang,et al.Assessment of global unconventional oil and gas resources[J].Petroleum Exploration and Development,2016,43(6):850-862.
[2]	郭天旭,周志,任收麦.柴达木盆地北缘侏罗系(柴页1井)发现陆相页岩气[J].中国地质,2017,44(2):401-402. GUO Tianxu,ZHOU Zhi,REN Shoumai.Jurassic shale gas disco-vered at Chaiye-1 well on the northern margin of Qaidam Basin[J].Geology in China,2017,44(2):401-402.
[3]	燕继红,李启桂,朱祥.四川盆地及周缘下寒武统页岩气成藏主控因素与勘探方向[J].石油实验地质,2016,38(4):445-452. YAN Jihong,LI Qigui,ZHU Xiang.Main factors controlling shale gas accumulation and exploration targets in the Lower Cambrian,Sichuan Basin and its periphery[J].Petroleum Geology & Experiment,2016,38(4):445-452.
[4]	俞凌杰,范明,腾格尔,等.埋藏条件下页岩气赋存形式研究[J].石油实验地质,2016,38(4):438-444. YU Lingjie,FAN Ming,TENGER,et al.Shale gas occurrence under burial conditions[J].Petroleum Geology & Experiment,2016,38(4):438-444.
[5]	琚宜文,戚宇,房立志,等.中国页岩气的储层类型及其制约因素[J].地球科学进展,2016,31(8):782-799. JU Yiwen,QI Yu,FANG Lizhi,et al.China shale gas reservoir types and its controlling factors[J].Advances in Earth Science,2016,31(8):782-799.
[6]	王世谦.页岩气资源开采现状、问题与前景[J].天然气工业,2017,37(6):115-130. WANG Shiqian.Shale gas exploitation:status,issues and prospects[J].Natural Gas Industry,2017,37(6):115-130.
[7]	CURTIS J B.Fractured shale-gas systems[J].AAPG Bulletin,2002,86(11):1921-1938.
[8]	李新景,胡素云,程克明.北美裂缝性页岩气勘探开发的启示[J].石油勘探与开发,2007,34(4):392-400. LI Xinjing,HU Suyun,CHENG Keming.Suggestions from the development of fractured shale gas in North America[J].Petroleum Exploration and Development,2007,34(4):392-400.
[9]	张金川,汪宗余,聂海宽,等.页岩气及其勘探研究意义[J].现代地质,2008,22(4):640-646. ZHANG Jinchuan,WANG Zongyu,NIE Haikuan,et al.Shale gas and its significance for exploration[J].Geoscience,2008,22(4):640-646.
[10]	李武广,杨胜来,徐晶,等.考虑地层温度和压力的页岩吸附气含量计算新模型[J].天然气地球科学,2012,23(4):791-796. LI Wuguang,YANG Shenglai,XU Jing,et al.A new model for shale adsorptive gas amount under a certain geological conditions of temperature and pressure[J].Natural Gas Geoscience,2012,23(4):791-796.
[11]	周正武,刘新凯,王延忠,等.保靖地区龙马溪组高成熟海相页岩吸附气量及其影响因素[J].中国石油勘探,2017,22(4):73-83. ZHOU Zhengwu,LIU Xinkai,WANG Yanzhong,et al.Gas adsorption capacity of Longmaxi Formation high-maturity marine shale in Baojing area and its influential factors[J].China Petroleum Exploration,2017,22(4):73-83.
[12]	任建华,蔺景德,张亮,等.页岩气藏吸附特征及其对产能的影响[J].新疆石油地质,2013,34(4):441-444. REN Jianhua,LIN Jingde,ZHANG Liang,et al.Adsorption characteristics and impact on productivity of shale gas reservoir[J].Xinjiang Petroleum Geology,2013,34(4):441-444.
[13]	ROSS D J K,BUSTIN R M.The importance of shale composition and pore structure upon gas storage potential of shale gas reser-voirs[J].Marine and Petroleum Geology,2009,26(6):916-927.
[14]	刘洪林,王红岩.中国南方海相页岩吸附特征及其影响因素[J].天然气工业,2012,32(9):5-9. LIU Honglin,WANG Hongyan.Adsorptivity and influential factors of marine shales in South China[J].Natural Gas Industry,2012,32(9):5-9.
[15]	熊伟,郭为,刘洪林,等.页岩的储层特征以及等温吸附特征[J].天然气工业,2012,32(1):113-116. XIONG Wei,GUO Wei,LIU Honglin,et al.Shale reservoir characteristics and isothermal adsorption properties[J].Natural Gas Industry,2012,32(1):113-116.
[16]	薛华庆,王红岩,刘洪林,等.页岩吸附性能及孔隙结构特征:以四川盆地龙马溪组页岩为例[J].石油学报,2013,34(5):826-832. XUE Huaqing,WANG Hongyan,LIU Honglin,et al.Adsorption capability and aperture distribution characteristics of shales:taking the Longmaxi Formation shale of Sichuan Basin as an example[J].Acta Petrolei Sinica,2013,34(5):826-832.
[17]	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. YAN Jianping,ZHANG Tongwei,LI Yanfang,et al.Effect of the organic matter characteristics on methane adsorption in shale[J].Journal of China Coal Society,2013,38(5):805-811.
[18]	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. 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 China Coal Society,2013,38(5):812-816.
[19]	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. BI He,JIANG Zhenxue,LI Peng,et al.Adsorption characteristic and influence factors of Longmaxi shale in southeastern Chongqing[J].Natural Gas Geoscience,2014,25(2):302-310.
[20]	曹涛涛,王思波,宋叙,等.页岩干燥温度对甲烷吸附的影响[J].新疆石油地质,2014,35(3):315-318. CAO Taotao,Wang Sibo,SONG Xu,et al.The influence of drying temperature on methane adsorption capacity of shales[J].Xinjiang Petroleum Geology,2014,35(3):315-318.
[21]	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. 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.
[22]	任泽樱,刘洛夫,高小跃,等.库车坳陷东北部侏罗系泥页岩吸附能力及影响因素分析[J].天然气地球科学,2014,25(4):632-640. REN Zeying,LIU Luofu,GAO Xiaoyue,et al.Adsorption capacity and its influence factors of the Jurassic shale in the northeastern Kuqa Depression[J].Natural Gas Geoscience,2014,25(4):632-640.
[23]	王思波,宋之光,曹涛涛,等.中国南方古生界页岩吸附特征及控制因素[J].地球化学,2014,43(5):429-436. WANG Sibo,SONG Zhiguang,CAO Taotao,et al.Characterizing the methane sorption and its controlling factors in Paleozoic shales of South China[J].Geochimica,2014,43(5):429-436.
[24]	张烈辉,唐洪明,陈果,等.川南下志留统龙马溪组页岩吸附特征及控制因素[J].天然气工业,2014,34(12):63-69. ZHANG Liehui,TANG Hongming,CHEN Guo,et al.Adsorption capacity and controlling factors of the Lower Silurian Longmaxi shale play in southern Sichuan Basin[J].Natural Gas Industry,2014,34(12):63-69.
[25]	赵玉集,郭为,熊伟,等.页岩等温吸附/解吸影响因素研究[J].天然气地球科学,2014,25(6):940-946. ZHAO Yuji,GUO Wei,XIONG Wei,et al.Study of impact factors on shale gas adsorption and desorption[J].Natural Gas Geoscience,2014,25(6):940-946.
[26]	王茂桢,柳少波,任拥军,等.页岩气储层粘土矿物孔隙特征及其甲烷吸附作用[J].地质论评,2015,61(1):207-216. WANG Maozhen,LIU Shaobo,REN Yongjun,et al.Pore characteristics and methane adsorption of clay minerals in shale gas reservoir[J].Geological Review,2015,61(1):207-216.
[27]	康毅力,陈益滨,李相臣,等.页岩粒径对甲烷吸附性能影响[J].天然气地球科学,2017,28(2):272-279. KANG Yili,CHEN Yibin,LI Xiangchen,et al.Effect of particle size on methane sorption capacity of shales[J].Natural Gas Geoscience,2017,28(2):272-279.
[28]	赵春鹏,伦增珉,王卫红,等.储层条件下龙马溪组全直径页岩吸附实验[J].断块油气田,2016,23(6):749-752. ZHAO Chunpeng,LUN Zengmin,WANG Weihong,et al.Isothermal adsorption experiment of full-diameter shale core in Longmaxi Formation under reservoir condition[J].Fault-block Oil & Gas Field,2016,23(6):749-752.
[29]	聂海宽,张金川,马晓彬,等.页岩等温吸附气含量负吸附现象初探[J].地学前缘,2013,20(6):282-288. NIE Haikuan,ZHANG Jinchuan,MA Xiaobin,et al.A preliminary study of negative adsorption phenomena of shale adsorption gas content by isothermal adsorption[J].Earth Science Frontiers,2013,20(6):282-288.
[30]	周尚文,李奇,薛华庆,等.页岩容量法和重量法等温吸附实验对比研究[J].化工进展,2017,36(5):1690-1697. ZHOU Shangwen,LI Qi,XUE Huaqing,et al.Comparative study on the volumetric and gravimetric method for isothermal adsorption experiment of shale[J].Chemical Industry and Engineering Progress,2017,36(5):1690-1697.
[31]	周尚文,薛华庆,郭伟,等.基于重量法的页岩气超临界吸附特征实验研究[J].煤炭学报,2016,41(11):2806-2812. ZHOU Shangwen,XUE Huaqing,GUO Wei,et al.Supercritical isothermal adsorption characteristics of shale gas based on gravimetric method[J].Journal of China Coal Society,2016,41(11):2806-2812.
[32]	盛茂,李根生,陈立强,等.页岩气超临界吸附机理分析及等温吸附模型的建立[J].煤炭学报,2014,39(S1):179-183. SHENG Mao,LI Gensheng,CHEN Liqiang,et al.Mechanisms analysis of shale-gas supercritical adsorption and modeling of isorption adsorption[J].Journal of China Coal Society,2014,39(S1):179-183.
[33]	刘圣鑫,钟建华,马寅生,等.柴东石炭系页岩微观孔隙结构与页岩气等温吸附研究[J].中国石油大学学报(自然科学版),2015,39(1):33-42. LIU Shengxin,ZHONG Jianhua,MA Yinsheng,et al.Study of microscopic pore structure and adsorption isothermal of carboniferous shale,eastern Qaidam Basin[J].Journal of China University of Petroleum(Edition of Natural Science),2015,39(1):33-42.
[34]	LI Teng,WU Caifang.Research on the abnormal isothermal adsorption of shale[J].Energy & Fuels,2015,29(2):634-640.
[35]	GUMMA S,TALU O.Gibbs dividing surface and helium adsorption[J].Adsorption,2003,9(1):17-28.
[36]	ROSS D J K,BUSTIN R M.Impact of mass balance calculations on adsorption capacities in microporous shale gas reservoirs[J].Fuel,2007,86(17/18):2696-2706.
[37]	TIAN Hui,LI Tengfei,ZHANG Tongwei,et al.Characterization of methane adsorption on overmature Lower Silurian-Upper Ordovician shales in Sichuan Basin,Southwest China:experimental results and geological implications[J].International Journal of Coal Geo-logy,2016,156:36-49.
[38]	俞凌杰,范明,陈红宇,等.富有机质页岩高温高压重量法等温吸附实验[J].石油学报,2015,36(5):557-563. YU Lingjie,FAN Ming,CHEN Hongyu,et al.Isothermal adsorption experiment of organic-rich shale under high temperature and pressure using gravimetric method[J].Acta Petrolei Sinica,2015,36(5):557-563.
[39]	周理,李明,周亚平.超临界甲烷在高表面活性炭上的吸附测量及其理论分析[J].中国科学(B辑),2000,30(1):49-56. ZHOU Li,LI Ming,ZHOU Yaping.Measurement and theoretical analysis of the adsorption of supercritical methane on superactivated carbon[J].Science in China (Series B),2000,30(1):49-56.
[40]	SIRCAR S.Gibbsian surface excess for gas adsorption-revisited[J].Industrial & Engineering Chemistry Research,1999,38(10):3670-3682.
[41]	秦玉金,罗海珠,姜文忠,等.非等温吸附变形条件下瓦斯运移多场耦合模型研究[J].煤炭学报,2011,36(3):412-416. QIN Yujin,LUO Haizhu,JIANG Wenzhong,et al.The research of gas migration multi-physics coupling model under the non-isothermal adsorption distortion[J].Journal of China Coal Society,2011,36(3):412-416.