Article(id=1242133028332446113, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242133009692959068, articleNumber=null, orderNo=12, doi=10.3981/j.issn.1000-7857.2015.02.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1413475200000, receivedDateStr=2014-10-17, revisedDate=1418659200000, revisedDateStr=2014-12-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1423466432620, onlineDateStr=2015-02-09, pubDate=1422374400000, pubDateStr=2015-01-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1423466432620, onlineIssueDateStr=2015-02-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077191665, creator=sys-migrate, updateTime=1774077191665, updator=sys-migrate, issue=Issue{id=1242133009692959068, tenantId=1146029695717560320, journalId=1146031591421210625, year='2015', volume='33', issue='2', pageStart='1', pageEnd='128', issueExtLink='null', onlineDate='null', pubDate='1422374400000', pubDateStr='2015-01-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077187222, creator='sys-migrate', updateTime=1774077187222, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=69, endPage=73, ext={EN=ArticleExt(id=1242133032304456255, articleId=1242133028332446113, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Influence of effective stress on permeability of different rank coals, columnId=null, journalTitle=Science & Technology Review, columnName=null, runingTitle=null, highlight=null, articleAbstract=Based on the stress sensitivity experiments of various rank coals, the influence of the effective stress on the permeability of different rank coals is studied. It is shown that in the same range of the effective stress variation, the decrease of the low-rank coal permeability is larger than that of the medium-rank and high-rank coals; The permeability variations of the low-rank and high-rank coals more consistently follow an exponential law than the medium-rank coal; In the low effective stress range, the damage coefficient of the permeability and the stress sensitive coefficient of the low-rank coal are greater than those of the medium-rank and high-rank coals; Under the identical effective stress, the cleat compressibility of the low-rank coal is greater than that of the medium-rank and high-rank coals; The cleat compressibility decreases with the increase of the effective stress, and it is not constant. Fitting results of evaluation parameters of the stress sensitivity show that the damage coefficient of the permeability and the cleat comperssibility of the low-rank and medium-rank coals follow an exponential law, but for the high-rank coal, they follow a linear function; the stress sensitive coefficient of various rank coals follows an exponential law., authors=XUE Pei¹, ZHENG Peiyu², XU Wenjun², REN Xiaolong², HUANG Chen², DU Jiangmin^3,4, authorsList=XUE Pei, ZHENG Peiyu, XU Wenjun, REN Xiaolong, HUANG Chen, DU Jiangmin, authorCompany=1. College of Geoscience and Surveying Engineering, China University of Mining & Technology, Beijing 100083, China;
2. No.2 Oil Producing Plant, Qinghai Oilfield Company, PetroChina, Haixi 816400, China;
3. State Key Laboratory of Continental Dynamics, Northwest University, Xi'an 710069, China;
4. College of Resources, Shijiazhuang University of Economics, Shijiazhuang 050031, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=QnqUpPSbJbfFLEvesHUlNw==, pdfFileSize=1588721, 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=1242133031184572849, articleId=1242133028332446113, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=有效应力对不同阶煤渗透率影响的差异性分析, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=通过不同阶煤储层渗透率应力敏感性实验,对比分析了有效应力对不同阶煤渗透率影响的差异。结果显示,在相同有效应力变化范围内,低阶煤渗透率下降幅度大于中、高阶煤;低、高阶煤渗透率变化较中阶煤更符合指数函数变化规律;低有效应力阶段,低阶煤渗透率损害系数、应力敏感系数大于中、高阶煤;相同有效应力下,低阶煤割理压缩系数大于中、高阶煤;不同煤阶割理压缩系数随有效应力增加呈现下降趋势,不应将其视为常数。应力敏感性评价参数拟合结果显示,中、低阶煤渗透率损害系数、割理压缩系数符合指数函数变化规律,高阶煤渗透损害系数、割理压缩系数符合线性函数变化规律;不同阶煤渗透率应力敏感系数均符合指数变化规律。, authors=薛培¹, 郑佩玉², 徐文君², 任小龙², 黄晨², 杜江民^3,4, authorsList=薛培, 郑佩玉, 徐文君, 任小龙, 黄晨, 杜江民, authorCompany=1. 中国矿业大学(北京)地球科学与测绘工程学院, 北京100083;
2. 中石油青海分油田采油二厂, 海西816400;
3. 西北大学大陆动力学国家重点实验室, 西安710069;
4. 石家庄经济学院资源学院, 石家庄050031, correspAuthors=null, authorNote=薛培,博士研究生,研究方向为煤层气及油气地质,电子信箱:xuepei330@163.com, correspAuthorsNote=杜江民,讲师,研究方向为石油地质与非常规油气地质,电子信箱:jiangmindu@163.com, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=2WstW9OmuPEZYns/8LqQag==, pdfFileSize=1588721, 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=国家科技重大专项(2011ZX05042-003))}, authors=null, keywords=[Keyword(id=1242133030588981672, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242133028332446113, language=CN, orderNo=1, keyword=不同阶煤), Keyword(id=1242133030689644970, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242133028332446113, language=CN, orderNo=1, keyword=有效应力), Keyword(id=1242133030773531052, 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