Article(id=1242133171198829392, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242133153922495427, articleNumber=null, orderNo=9, doi=10.3981/j.issn.1000-7857.2015.05.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1410796800000, receivedDateStr=2014-09-16, revisedDate=1418486400000, revisedDateStr=2014-12-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1427431018770, onlineDateStr=2015-03-27, pubDate=1426176000000, pubDateStr=2015-03-13, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1427431018770, onlineIssueDateStr=2015-03-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077225729, creator=sys-migrate, updateTime=1774077225729, updator=sys-migrate, issue=Issue{id=1242133153922495427, tenantId=1146029695717560320, journalId=1146031591421210625, year='2015', volume='33', issue='5', pageStart='1', pageEnd='128', issueExtLink='null', onlineDate='null', pubDate='1426176000000', pubDateStr='2015-03-13', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077221610, creator='sys-migrate', updateTime=1774077221610, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=52, endPage=56, ext={EN=ArticleExt(id=1242133173233066858, articleId=1242133171198829392, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Evaluation of oil displacement by CO₂ at Fuyang extra-low permeability layer in Yushulin oilfield, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=Various problems exist in the development of Fuyang extra-low permeability oil layer using water flooding, including injection difficulty, recovery difficulty, low effectiveness, and low recovery rate. To solve these problems, a CO₂ flooding test was carried out at Shu101 well block in Daqing Yushulin Oilfield. Systematic evaluation of the displacement state, development characteristics and effects of CO₂ flooding was conducted. The results show that when the injection rate of CO₂ was 0.1 HCPV, through comparison of high pressure physical properties of two samplings, the light component increased by 5.7%, and the minimum miscibility pressure decreased from 32.2 MPa to 28.6 MPa, a drop of 3.6 MPa. Three kinds of displacement states existed in the test area: miscible, semi-miscible and immiscible phases, which account for 2/8, 1/8, and 5/8, respectively. Through research and oilfield practice, the development and adjustment technology of CO₂ flooding for different gas injection stages and different types of wells was developed. The oil recovery rate in the test area remained above 1% for four consecutive years. Numerical simulation predicted that the ultimate recovery using CO₂ flooding will be 10% higher than that using water flooding., authors=ZHANG Yingzhi¹, YANG Tiejun¹, YANG Zhengming², XIAO Qianhua², WANG Xiangyang², authorsList=ZHANG Yingzhi, YANG Tiejun, YANG Zhengming, XIAO Qianhua, WANG Xiangyang, authorCompany=1. Daqing Oilfield Limited Company, PetroChina, Daqing 163000, China;
2. Langfang Branch, Institute of Porous Flow & Fluid Mechanics, Langfang 065007, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=8qU5i/y/FGY+uuzm4lhYIQ==, pdfFileSize=1338036, 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=1242133172301931354, articleId=1242133171198829392, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=榆树林油田特低渗透扶杨油层CO₂驱油效果评价, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=针对特低渗透扶杨油层注水开发中存在的注入难、采出难,水驱开发效果差,采收率低的问题,在榆树林油田树101 井区开展了扶杨油层CO₂驱油试验。通过现场试验对CO₂驱替状态、开发特征及效果进行了系统评价,结果表明,当试验区注入CO₂为0.1 HCPV(烃类占据的孔隙体积)时,通过两次高压物性取样对比,轻质组分含量增加了5.7%,最小混相压力由32.2 MPa 下降至28.6 MPa。试验区存在混相、半混相及非混相3 种驱替状态,混相区域占2/8,半混相占1/8,非混相占5/8。通过研究和矿场实践,形成了不同注气阶段不同类井的CO₂驱开发调整技术,试验区采油速度连续4 年保持在1%以上,数值模拟预测最终采收率比水驱高10%以上,试验区取得了显著的开发效果。, authors=张英芝¹, 杨铁军¹, 杨正明², 肖前华², 王向阳², authorsList=张英芝, 杨铁军, 杨正明, 肖前华, 王向阳, authorCompany=1. 中国石油大庆油田有限责任公司, 大庆 163000;
2. 中国石油勘探开发研究院廊坊分院, 廊坊 065007, correspAuthors=null, authorNote=张英芝,总地质师,研究方向为油气田开发,电子信箱:zhangyingzhi99@sina.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=Vm1Nwy0clLENqcBLeRsyUQ==, pdfFileSize=1338036, 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=国家油气重大专项(2011ZX05013-006);中石油重大攻关课题(2011B-1203))}, authors=null, keywords=[Keyword(id=1242133171987358547, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242133171198829392, language=CN, orderNo=1, keyword=CO₂驱), Keyword(id=1242133172092216150, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242133171198829392, language=CN, orderNo=1, keyword=特低渗透油田), Keyword(id=1242133172163519320, 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