Article(id=1322942363412341178, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941842395889747, articleNumber=null, orderNo=null, doi=10.13809/j.cnki.cn32-1825/te.20250080, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1765382400000, receivedDateStr=2025-12-11, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793343638517, onlineDateStr=2026-10-30, pubDate=1784995200000, pubDateStr=2026-07-26, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793343638517, onlineIssueDateStr=2026-10-30, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793343638517, creator=13701087609, updateTime=1793343638517, updator=13701087609, issue=Issue{id=1322941842395889747, tenantId=1146029695717560320, journalId=1322258508890079423, year='2026', volume='16', issue='4', pageStart='737', pageEnd='948', issueExtLink='null', onlineDate='null', pubDate='1784995200000', pubDateStr='2026-07-26', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793343514297, creator='13701087609', updateTime=1793344192960, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1322944689019695905, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941842395889747, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1322944689019695906, tenantId=1146029695717560320, journalId=1322258508890079423, issueId=1322941842395889747, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=855, endPage=864, ext={EN=ArticleExt(id=1322942363924046267, articleId=1322942363412341178, tenantId=1146029695717560320, journalId=1322258508890079423, language=EN, title=Prediction of adsorption characteristics of CH
4-CO
2 system in shale based on machine learning, columnId=1322941693024141328, journalTitle=Petroleum Reservoir Evaluation and Development, columnName=Oil and Gas Development, runingTitle=null, highlight=
CO2-enhanced shale gas recovery (CO2-ESGR) is a promising carbon capture, utilization, and storage (CCUS) technology that simultaneously improves shale gas production and enables geological CO2 sequestration, contributing to carbon neutrality and offering broad application prospects. The adsorption characteristics of CH4 and CO2 in shale directly affect gas displacement efficiency and CO2 sequestration performance and are one of the key factors influencing the performance of CO2-ESGR. In this study, experimental data on CH4-CO2 adsorption in shale samples from major shale-gas-rich regions in China were compiled to establish a comprehensive database. The effects of total organic carbon (TOC), clay content, BET specific surface area, temperature, pressure, and CO2 content on adsorption behavior were systematically considered. Several machine-learning models, including back-propagation neural network, K-nearest-neighbor regression, random forest regression, and support vector machine regression, were developed to predict CH4-CO2 adsorption properties and to investigate competitive adsorption in CH4-CO2 systems. Model performance was evaluated by comparison with published data, experimental measurements, and Langmuir model predictions. The results indicated that the random forest regression model achieved the highest prediction accuracy and strong generalization ability. Within the pressure range of 0-15 MPa, the model yielded an average absolute relative deviation of 1.57%-1.94% and an R2 value of 0.99 for both single-component and mixed-gas systems. These results demonstrate that the proposed machine-learning model can reliably predict CH4-CO2 adsorption and competitive adsorption behaviors in shale, providing theoretical support for CO2-ESGR applications.
, articleAbstract=null, authors=SHUYANG LIU1
, 2, HONGLUE HUANG1, JIANGLONG WANG1, JUNRONG LIU1, SIWEI MENG3
, 4, authorsList=SHUYANG LIU, HONGLUE HUANG, JIANGLONG WANG, JUNRONG LIU, SIWEI MENG, authorCompany=null, correspAuthors=SIWEI MENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1322942367833137615, articleId=1322942363412341178, tenantId=1146029695717560320, journalId=1322258508890079423, language=CN, title=基于机器学习的页岩内CH
4-CO
2体系吸附特性预测, columnId=1322941693259022355, journalTitle=油气藏评价与开发, columnName=油气开发, runingTitle=null, highlight=
CO2提高页岩气采收率(CO2-ESGR)技术是一种将非常规天然气开发与CO2封存相结合的碳捕集、利用与封存(CCUS)技术。该技术不仅能提升页岩气开发效果,还可实现CO2地质封存,对缓解温室气体排放压力、助力实现“碳中和”目标具有重要意义,应用前景广阔。在CO2-ESGR过程中,CH4和CO2在页岩内部的吸附特性直接影响气体置换效率与封存效果,是影响CO2-ESGR效果的关键因素之一。本文系统整理了中国主要页岩气资源富集区页岩样品的CH4-CO2气体吸附实验数据,并构建了相应数据库。本研究综合考虑总有机碳(TOC)含量、黏土矿物含量、BET比表面积、温度、压力、CO2含量等关键因素,基于BP(反向传播)神经网络、K近邻(KNN)算法、随机森林和支持向量机4种机器学习方法,构建了页岩中CH4-CO2吸附性质预测模型,进而系统研究了CH4-CO2体系的吸附与竞争吸附特性。通过与文献报道数据、实验实测数据和朗缪尔(Langmuir)模型预测数据等多维度对比,验证了本研究构建的机器学习吸附模型的准确性。结果表明,随机森林模型的预测精度最高且具有较好的适用范围拓展性,0~15 MPa范围内单组分气体和混合体系吸附量预测的平均绝对相对偏差介于1.57%~1.94%,决定系数(R2)达0.99。本研究建立的机器学习模型能够较准确地预测页岩内CH4-CO2混合体系吸附特性与竞争吸附特性,为CO2-ESGR技术应用提供一定的基础理论支撑。
, articleAbstract=null, authors=刘树阳1
, 2, 黄洪略1, 王江龙1, 刘峻嵘1, 孟思炜3
, 4, authorsList=刘树阳, 黄洪略, 王江龙, 刘峻嵘, 孟思炜, authorCompany=null, correspAuthors=孟思炜, authorNote=
刘树阳(1990—),男,博士,副教授,主要从事CCUS与提高采收率、非常规油气开发、油气智能开发方向的研究。地址:山东省青岛市黄岛区长江西路66号,邮政编码:266580。E-mail: shuyang_liu@126. com
, correspAuthorsNote=
孟思炜(1988—),男,博士,高级工程师,主要从事非常规储集层综合评价和效益开发技术、CO
2地质封存与资源化利用等研究。地址:北京市海淀区学院路20号,邮政编码:100083。E-mail:
mengsw@petrochina.com.cn, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=2zNFbukyUAL5N5tUWWgYfA==, magXml=9nzETpPAn0SvDblXwA42qg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=FfwXVB0o64pWXDdBnBEKyw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=jUmwFhllZ8N20R9k8fuwTQ==, mapNumber=null, fund=null)}, authors=[Author(id=1322942370207113693, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=shuyang_liu@126. com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322942370320359904, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942370207113693, language=EN, stringName=SHUYANG LIU, firstName=SHUYANG, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
, 2, address=
1 School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China
2 State Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao, Shandong 266580, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942370391663073, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942370207113693, language=CN, stringName=刘树阳, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1
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1 中国石油大学(华东)石油工程学院,山东 青岛 266580
2 深层油气全国重点实验室(中国石油大学(华东)),山东 青岛 266580, bio={"content":"
刘树阳(1990—),男,博士,副教授,主要从事CCUS与提高采收率、非常规油气开发、油气智能开发方向的研究。地址:山东省青岛市黄岛区长江西路66号,邮政编码:266580。E-mail: shuyang_liu@126. com
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刘树阳(1990—),男,博士,副教授,主要从事CCUS与提高采收率、非常规油气开发、油气智能开发方向的研究。地址:山东省青岛市黄岛区长江西路66号,邮政编码:266580。E-mail: shuyang_liu@126. com
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1 中国石油大学(华东)石油工程学院,山东 青岛 266580)]), AuthorCompany(id=1322942369968038355, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, xref=2, ext=[AuthorCompanyExt(id=1322942369972232660, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942369968038355, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 深层油气全国重点实验室(中国石油大学(华东)),山东 青岛 266580)])]), Author(id=1322942370605572579, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322942370697847269, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942370605572579, language=EN, stringName=HONGLUE HUANG, firstName=HONGLUE, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942370781733350, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942370605572579, language=CN, stringName=黄洪略, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
1 中国石油大学(华东)石油工程学院,山东 青岛 266580, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942368353231312, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, xref=1, ext=[AuthorCompanyExt(id=1322942368374202833, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942368353231312, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, China), AuthorCompanyExt(id=1322942368390980050, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942368353231312, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1 中国石油大学(华东)石油工程学院,山东 青岛 266580)])]), Author(id=1322942370840453608, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322942370920145386, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942370840453608, language=EN, stringName=JIANGLONG WANG, firstName=JIANGLONG, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
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1 中国石油大学(华东)石油工程学院,山东 青岛 266580)])]), Author(id=1322942371113083373, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1322942371201163759, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942371113083373, language=EN, stringName=JUNRONG LIU, firstName=JUNRONG, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=
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, 4, address=
3 Research Institute of Petroleum Exploration and Development, Beijing 100083, China
4 State Key Laboratory of Continental Shale Oil, Daqing, Heilongjiang 163412, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1322942371561873910, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, authorId=1322942371377324530, language=CN, stringName=孟思炜, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=3
, 4, address=
3 中国石油勘探开发研究院,北京 100083
4 多资源协同陆相页岩油绿色开采全国重点实验室,黑龙江 大庆 163412, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1322942370047730134, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, xref=3, ext=[AuthorCompanyExt(id=1322942370056118743, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942370047730134, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 Research Institute of Petroleum Exploration and Development, Beijing 100083, China), AuthorCompanyExt(id=1322942370064507352, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942370047730134, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3 中国石油勘探开发研究院,北京 100083)]), AuthorCompany(id=1322942370119033305, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, xref=4, ext=[AuthorCompanyExt(id=1322942370127421914, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942370119033305, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 State Key Laboratory of Deep Oil and Gas, China University of Petroleum (East China), Qingdao, Shandong 266580, China), AuthorCompanyExt(id=1322942369976426965, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942369968038355, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3 Research Institute of Petroleum Exploration and Development, Beijing 100083, China), AuthorCompanyExt(id=1322942370064507352, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942370047730134, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4 State Key Laboratory of Continental Shale Oil, Daqing, Heilongjiang 163412, China), AuthorCompanyExt(id=1322942370135810523, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, companyId=1322942370119033305, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
4 多资源协同陆相页岩油绿色开采全国重点实验室,黑龙江 大庆 163412)])], figs=[ArticleFig(id=1322942372388151809, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.1, caption=
Variations in gas adsorption capacity in shale with respect to different factors, figureFileSmall=C3kxuaLjdwzo0CKk2XHanQ==, figureFileBig=FfwXVB0o64pWXDdBnBEKyw==, tableContent=null), ArticleFig(id=1322942372472037890, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图1, caption=
页岩内气体吸附量随不同因素变化规律, figureFileSmall=C3kxuaLjdwzo0CKk2XHanQ==, figureFileBig=FfwXVB0o64pWXDdBnBEKyw==, tableContent=null), ArticleFig(id=1322942372656587267, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.2, caption=
Construction process of machine-learning adsorption model, figureFileSmall=dmBB0zwasyGfT+KaGWqs0Q==, figureFileBig=cYthVB5hiSSk7koGggBwPQ==, tableContent=null), ArticleFig(id=1322942372723696132, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图2, caption=
机器学习吸附模型建立过程, figureFileSmall=dmBB0zwasyGfT+KaGWqs0Q==, figureFileBig=cYthVB5hiSSk7koGggBwPQ==, tableContent=null), ArticleFig(id=1322942374376251909, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.3, caption=
Evaluation of prediction performance of pure CH4 and pure CO2 adsorption for different machine-learning models, figureFileSmall=fY1Ca5WRLsZb7N4A3hec1A==, figureFileBig=OGAz/eNhS8DaLU4aalEagA==, tableContent=null), ArticleFig(id=1322942374468526598, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图3, caption=
不同机器学习模型对CH4和CO2单组分气体吸附量预测性能评估, figureFileSmall=fY1Ca5WRLsZb7N4A3hec1A==, figureFileBig=OGAz/eNhS8DaLU4aalEagA==, tableContent=null), ArticleFig(id=1322942374556606983, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.4, caption=
Evaluation of prediction performance of CH4-CO2 adsorption capacity in binary mixtures for different machine-learning models, figureFileSmall=JsC108mAk21f/Ii10jayvg==, figureFileBig=jZKNO0X1EyGUelFI7v19+A==, tableContent=null), ArticleFig(id=1322942374661464584, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图4, caption=
不同机器学习模型对页岩内CH4-CO2混合体系吸附量预测性能评估, figureFileSmall=JsC108mAk21f/Ii10jayvg==, figureFileBig=jZKNO0X1EyGUelFI7v19+A==, tableContent=null), ArticleFig(id=1322942374778905097, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.5, caption=
Comparison of CH4 and CO2 adsorption capacity between prediction values from random forest model and experimental values, figureFileSmall=/Rprk7TLjfv4OskXprWKTQ==, figureFileBig=Y9MIULFUtgG9qXHOQCRV3g==, tableContent=null), ArticleFig(id=1322942374879568394, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图5, caption=
页岩内CH4和CO2单组分气体吸附量的随机森林模型预测值与实验值对比, figureFileSmall=/Rprk7TLjfv4OskXprWKTQ==, figureFileBig=Y9MIULFUtgG9qXHOQCRV3g==, tableContent=null), ArticleFig(id=1322942374959260171, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.6, caption=
Comparison of CH4-CO2 adsorption capacity between prediction values from random forest model and experimental values, figureFileSmall=oRQOus/bcD7h+gnoj4kuVw==, figureFileBig=QTA71FCD2nh3HizmUVtXaw==, tableContent=null), ArticleFig(id=1322942375059923468, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图6, caption=
页岩内CH4-CO2混合体系吸附量:随机森林模型预测值与实验值对比, figureFileSmall=oRQOus/bcD7h+gnoj4kuVw==, figureFileBig=QTA71FCD2nh3HizmUVtXaw==, tableContent=null), ArticleFig(id=1322942375135420941, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.7, caption=
Prediction errors of CH4-CO2 system adsorption in random forest model and Langmuir model, figureFileSmall=qgaOFITkxEDpukCadjO3Ew==, figureFileBig=S7w9jTKdllzg2lgJLYasfg==, tableContent=null), ArticleFig(id=1322942375219307022, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图7, caption=
CH4-CO2体系吸附量随机森林模型和Langmuir模型的预测偏差, figureFileSmall=qgaOFITkxEDpukCadjO3Ew==, figureFileBig=S7w9jTKdllzg2lgJLYasfg==, tableContent=null), ArticleFig(id=1322942375307387407, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.8, caption=
Adsorption selectivity coefficient of CO2/CH4 in binary system, figureFileSmall=UxXhZirFqFj0WZUHl0IyLg==, figureFileBig=V+WkcJWfnovd4ukLum8C8g==, tableContent=null), ArticleFig(id=1322942375370301968, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图8, caption=
混合状态下CO2/CH4吸附选择系数注:为吸附选择系数。
, figureFileSmall=UxXhZirFqFj0WZUHl0IyLg==, figureFileBig=V+WkcJWfnovd4ukLum8C8g==, tableContent=null), ArticleFig(id=1322942375454188049, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Fig.9, caption=
Variations in adsorption selectivity coefficient with TOC content and temperature, figureFileSmall=SEqndhEqddX997lE2wObOA==, figureFileBig=TsZh8zRpRR3445p2dK8SPA==, tableContent=null), ArticleFig(id=1322942375529685522, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=图9, caption=
吸附选择系数随TOC含量和温度变化规律, figureFileSmall=SEqndhEqddX997lE2wObOA==, figureFileBig=TsZh8zRpRR3445p2dK8SPA==, tableContent=null), ArticleFig(id=1322942375609377299, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Table1, caption=
Experimental database of CH4-CO2 adsorption properties in shale, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | 样品来源 | 黏土质量分数/% | ω(TOC) /% | BET比表面积/(m2/g) | 温度/K | 压力/MPa | CO2摩尔分数/% | 数据数量 |
|---|
| 齐荣荣[26] | 四川盆地 | 15.70~27.40 | 2.28~3.61 | 13.86~20.09 | 303~353 | 0~20 | 0、20、 50、100 | 446 |
| DU等[27] | 四川盆地 | 36.40 | 2.78 | 19.26 | 278~318 | 0~2 | 0、25、50、75、100 | 359 |
| DUAN等[28] | 四川盆地 | 23.96 | 1.85~3.83 | 35.41 | 278~318 | 0~2 | 0、80、100 | 131 |
| NIU等[29] | 四川盆地 | 34.00~48.20 | 1.06~5.15 | 15.97~21.35 | 323~363 | 0~15 | 0、100 | 162 |
| 胡楠[30] | 四川盆地 鄂尔多斯盆地 | 8.70~36.10 | 1.05~5.14 | 1.48~19.36 | 308~328 | 0~15 | 0、100 | 384 |
| 李钟原[31] | 四川盆地 | 15.70~25.50 | 2.34~3.64 | 13.9~19.1 | 303~353 | 0~20 | 0、8、25、53、100 | 986 |
| 刘启力[32] | 四川盆地 鄂尔多斯盆地 | 8.90~35.80 | 4.86 | 1.47~28.97 | 308~328 | 0~12 | 0、50、100 | 482 |
| LUO等[33] | 柴达木盆地 | 70.00 | 1.10~1.80 | 8.40~12.60 | 308~358 | 0~10 | 0、20、40、60、80、100 | 468 |
), ArticleFig(id=1322942375710040596, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=表1, caption=
页岩内CH4-CO2吸附性质实验数据库
, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据来源 | 样品来源 | 黏土质量分数/% | ω(TOC) /% | BET比表面积/(m2/g) | 温度/K | 压力/MPa | CO2摩尔分数/% | 数据数量 |
|---|
| 齐荣荣[26] | 四川盆地 | 15.70~27.40 | 2.28~3.61 | 13.86~20.09 | 303~353 | 0~20 | 0、20、 50、100 | 446 |
| DU等[27] | 四川盆地 | 36.40 | 2.78 | 19.26 | 278~318 | 0~2 | 0、25、50、75、100 | 359 |
| DUAN等[28] | 四川盆地 | 23.96 | 1.85~3.83 | 35.41 | 278~318 | 0~2 | 0、80、100 | 131 |
| NIU等[29] | 四川盆地 | 34.00~48.20 | 1.06~5.15 | 15.97~21.35 | 323~363 | 0~15 | 0、100 | 162 |
| 胡楠[30] | 四川盆地 鄂尔多斯盆地 | 8.70~36.10 | 1.05~5.14 | 1.48~19.36 | 308~328 | 0~15 | 0、100 | 384 |
| 李钟原[31] | 四川盆地 | 15.70~25.50 | 2.34~3.64 | 13.9~19.1 | 303~353 | 0~20 | 0、8、25、53、100 | 986 |
| 刘启力[32] | 四川盆地 鄂尔多斯盆地 | 8.90~35.80 | 4.86 | 1.47~28.97 | 308~328 | 0~12 | 0、50、100 | 482 |
| LUO等[33] | 柴达木盆地 | 70.00 | 1.10~1.80 | 8.40~12.60 | 308~358 | 0~10 | 0、20、40、60、80、100 | 468 |
), ArticleFig(id=1322942375810703893, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=EN, label=Table2, caption=
Optimal values of key parameters for each machine-learning model, figureFileSmall=null, figureFileBig=null, tableContent=
| 机器学习模型 | 参数 | 取值 |
|---|
| BP神经网络 | 激活函数 | satlin |
| 隐藏层神经元数量 | 11 |
| 学习率 | 0.006 |
| KNN | 邻近样本数量 | 5 |
| 距离度量方法 | 欧式距离 |
| 随机森林 | 决策树数量 | 200 |
| 决策树深度 | 10 |
| 特征选择方法 | auto |
| 支持向量机 | 正则化参数 | 2 |
| 学习率 | 0.001 |
| 迭代次数 | 1 000 |
), ArticleFig(id=1322942375886201366, tenantId=1146029695717560320, journalId=1322258508890079423, articleId=1322942363412341178, language=CN, label=表2, caption=
各机器学习模型关键参数最优取值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 机器学习模型 | 参数 | 取值 |
|---|
| BP神经网络 | 激活函数 | satlin |
| 隐藏层神经元数量 | 11 |
| 学习率 | 0.006 |
| KNN | 邻近样本数量 | 5 |
| 距离度量方法 | 欧式距离 |
| 随机森林 | 决策树数量 | 200 |
| 决策树深度 | 10 |
| 特征选择方法 | auto |
| 支持向量机 | 正则化参数 | 2 |
| 学习率 | 0.001 |
| 迭代次数 | 1 000 |
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