Article(id=1242132217057583486, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242132202184585719, articleNumber=null, orderNo=11, doi=10.3981/j.issn.1000-7857.2014.19.009, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1393430400000, receivedDateStr=2014-02-27, revisedDate=1400601600000, revisedDateStr=2014-05-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1405487817610, onlineDateStr=2014-07-16, pubDate=1404748800000, pubDateStr=2014-07-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1405487817610, onlineIssueDateStr=2014-07-16, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076998243, creator=sys-migrate, updateTime=1774076998243, updator=sys-migrate, issue=Issue{id=1242132202184585719, tenantId=1146029695717560320, journalId=1146031591421210625, year='2014', volume='32', issue='19', pageStart='1', pageEnd='95', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774076994697, creator=sys-migrate, updateTime=1774076994697, updator=sys-migrate, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=58, endPage=63, ext={EN=ArticleExt(id=1242132220161368467, articleId=1242132217057583486, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Demulsification Experiment Evaluation of Emulsion of Crude Oil and Different Spent Acids, columnId=1242116080374710456, journalTitle=Science & Technology Review, columnName=Articles, runingTitle=null, highlight=null, articleAbstract=The emulsion of crude oil and spent acid after acid fracturing treatment brings many troubles to production, such as increasing the loads of pump and pipe, causing corrosion and wax precipitation of pipe, and so on. Therefore, before trial-production we should find a way to break the emulsion which is made of residual acid and crude oil and then dehydrate it. In order to measure the demulsification effect and time of the mixed emulsion, demulsification experiments of emulsion of crude oil and three different spent acids with different concentrations are conducted in the laboratory. The spent acids include gelled acids, cross-linked acids, insitu gelled acids which are widely used in the field. Through analyzing all the impact factors, the results show that the demulsification efficiency of gelled acid is the best, followed by cross-linked acid, and the efficiency of in-situ acid is the worst. At the simulated bottom hole temperature of 90℃, the dehydration rate after demulsification of emulsion of crude oil and spent gelled acids is over 98%. The lower the acid concentration is, the better the demulsification efficiency will be. This feature is most obvious when in-situ acids are used. The longer the time taken, the better the demulsification efficiency will be. But the demulsification ends after 90 min.The demulsification is fast and the dehydration rate is high at high temperatures. However, with the production of the well, crude oil flows to the bottom hole from the reservoir and the temperature declines, so the dehydration rate may decrease., correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=YxTkV+JhMHsycZ0TS3+3Pw==, pdfFileSize=1104914, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=1. College of Energy Resource, Chengdu University of Technology, Chengdu 610059, China;
2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;
3. No.1 Oil Production Plant, Xinjiang Oil Field Company, Karamay 834000, China, fund=null, authors=YI Xiangyi^1,2, ZHANG Ziwei¹, XIA Tao³, DAI Yating¹, WU Yuanqin¹, authorsList=YI Xiangyi, ZHANG Ziwei, XIA Tao, DAI Yating, WU Yuanqin), CN=ArticleExt(id=1242132219276370310, articleId=1242132217057583486, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=不同酸液体系残酸-原油乳状液破乳室内评价, columnId=1146540929516700224, journalTitle=科技导报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=酸压后的残酸与原油混合形成的乳状液会增加泵、管柱的载荷，也容易造成管柱腐蚀结蜡等，给实际生产带来诸多不便。因此，在酸压后的开井试产前尽量让残酸与原油混合形成的乳状液破乳，将水分脱出。为测定残酸与原油混合形成的乳状液的破乳效果，确定破乳时间，针对目前使用比较广泛的胶凝酸、冻胶酸、变黏酸体系，进行这3 种酸液体系不同浓度残酸与原油混合形成的乳状液的破乳室内评价研究，对各种影响因素进行分析，得出了破乳效果胶凝酸>冻胶酸>变黏酸，在模拟井底温度（90℃）时，胶凝酸残酸原油乳状液破乳脱水率达到98%以上；酸液浓度越低，越有利于破乳，变黏酸的这项特性尤为突出；时间越长破乳效果越好，但在90 min 时达到基本破乳；在高温条件下残酸与原油形成的乳状液破乳快，脱水率高。但随着开井试采，地层原油由储层流动到井口，温度降低，脱水率可能降低。, correspAuthors=null, authorNote=伊向艺，教授，研究方向为油气田开发工程，电子信箱：yxy610059@163.com；张紫薇（共同第一作者），硕士研究生，研究方向为储层保护与储层改造，电子信箱：532190494@qq.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=agOdvfQeThpOTWxAR4jCbg==, pdfFileSize=1104914, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=1. 成都理工大学能源学院, 成都 610059;
2. 成都理工大学油气藏地质及开发工程国家重点实验室, 成都 610059;
3. 新疆油田公司采油一厂, 克拉玛依 834000, fund=国家自然科学基金项目（51274050）, authors=伊向艺^1,2, 张紫薇¹, 夏涛³, 戴亚婷¹, 吴元琴¹, authorsList=伊向艺, 张紫薇, 夏涛, 戴亚婷, 吴元琴)}, authors=null, keywords=[Keyword(id=1242132218865332791, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242132217057583486, language=CN, orderNo=1, keyword=残酸), Keyword(id=1242132218949218872, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242132217057583486, language=CN, orderNo=1, keyword=乳状液), Keyword(id=1242132219037299258, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242132217057583486, language=CN, orderNo=1, keyword=破乳), Keyword(id=1242132219108602428, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242132217057583486, language=CN, orderNo=1, keyword=脱水率), Keyword(id=1242132219762909579, tenantId=1146029695717560320, journalId=1146031591421210625, articleId=1242132217057583486, language=EN, orderNo=1, keyword=spent acids), 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