Article(id=1242140721424183301, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242140702436570024, articleNumber=null, orderNo=10, doi=10.3981/j.issn.1000-7857.2023.20.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1666800000000, receivedDateStr=2022-10-27, revisedDate=1670428800000, revisedDateStr=2022-12-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1699249897020, onlineDateStr=2023-11-06, pubDate=1698422400000, pubDateStr=2023-10-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1699249897020, onlineIssueDateStr=2023-11-06, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774079025843, creator=sys-migrate, updateTime=1774079025843, updator=sys-migrate, issue=Issue{id=1242140702436570024, tenantId=1146029695717560320, journalId=1146031591421210625, year='2023', volume='41', issue='20', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='1698422400000', pubDateStr='2023-10-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774079021316, creator='sys-migrate', updateTime=1774079021316, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=71, endPage=78, ext={EN=ArticleExt(id=1242140724611854355, articleId=1242140721424183301, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Research progress on key technologies for drilling and completion of offshore gas hydrate, columnId=1242116810380743325, journalTitle=Science & Technology Review, columnName=Reviews, runingTitle=null, highlight=null, articleAbstract=Natural gas hydrate is a kind of solid crystalline substance formed by water and methane under high pressure and low temperature, which is considered as the clean energy with the most potential to replace fossil energy by all countries in the world. The status of gas hydrate pilot production in the United States, Japan, India, South Korea and China was summarized. It was pointed out that there were some technical problems for the drilling and completion of natural gas hydrate in the sea area, such as narrow drilling fluid density window, difficult bottom hole pressure control, difficult directional well deflection, poor wellbore and wellhead stability, difficult reservoir reconstruction, and difficult sand control. The research and development status of solid fluidization drilling technology, horizontal well drilling technology, dual gradient drilling technology, pressure controlled casing drilling technology, hydraulic jet micro hole drilling technology, drilling fluid technology, and completion sand control technology were reviewed, and it was proposed that the scientific research efforts such as sand production mechanism, sand production prediction, well completion, drilling and completion equipment and instrument development must be strengthened to provide technical support for large-scale exploitation of natural gas hydrate in sea area., authors=WANG Zhigang¹, GONG Jianyu², WU Jixiu¹, YIN Hao¹, SHI Shanshan¹, YAN Jia¹, LI Xiaoyang¹, authorsList=WANG Zhigang, GONG Jianyu, WU Jixiu, YIN Hao, SHI Shanshan, YAN Jia, LI Xiaoyang, authorCompany=1. The Institute of Exploration Techniques, Chinese Academy of Geological Sciences, Langfang 065000, China
2. Hydrogeology Team of Hebei Coalfield Geology Bureau , Handan 056001, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=YP9XQL66eUsx5IbmfKsa9w==, pdfFileSize=609084, 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=1242140723886239758, articleId=1242140721424183301, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=海域天然气水合物钻完井关键技术研究进展, columnId=1242134377686180284, journalTitle=科技导报, columnName=综述, runingTitle=null, highlight=null, articleAbstract=天然气水合物是由水和甲烷在高压、低温条件下形成的一种固态结晶化物质，被世界各国认为是最有潜力替代化石能源的清洁能源。概述了美国、日本、印度、韩国和中国海域天然气水合物试采现状，指出海域天然气水合物钻完井存在钻井液密度窗口窄、井底压力控制难、定向井造斜难、井壁和井口稳定性差、储层改造难、防砂困难等技术难题，梳理了固态流化钻井技术、水平井钻井技术、双梯度钻井技术、控压套管钻井技术、水力喷射微小井眼钻井技术、钻井液技术、完井防砂技术的研究发展现状，提出了必须要加强海域天然气水合物出砂机理、出砂预测、成井、建井、钻完井设备与仪器研发等科研攻关力度，为规模化开采海域天然气水合物提供技术保障。, authors=王志刚¹，巩建雨²，吴纪修¹，尹浩¹，施山山¹，闫家¹，李小洋¹, authorsList=王志刚，巩建雨，吴纪修，尹浩，施山山，闫家，李小洋, authorCompany=1. 中国地质科学院勘探技术研究所，廊坊 065000
2. 河北省煤田地质局水文地质队，邯郸 056001, correspAuthors=null, authorNote=王志刚，工程师，研究方向为水合物、页岩气、干热岩、科学超深井钻井与研发，电子信箱：1036821833@qq.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=nCb447J16bew81TV7JRtpg==, pdfFileSize=609084, 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=国家自然科学基金项目（42102352）；国家重点研发计划战略性国际科技创新合作重点专项（2018YFE0208200）；中国地质调查局地质调查项目（DD20211337）)}, authors=[Author(id=1277961345563799808, tenantId=1146029695717560320, journalId=null, articleId=1242140721424183301, orderNo=null, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=null, email=null, emailSecond=null, emailThird=null, correspondingAuthor=null, authorType=null, 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