摘要
南海西部石油公司在其管辖的莺歌海、琼东南盆地中深层勘探中遇到高温高压储层，在中外专家的协助下于１９９４年７月在水深１１５ｍ的崖２１—１构造上钻成深度４６８８ｍ的探井，经测试地层压力为１０５．１５ＭＰａ，地层温度２０６℃，获得齐全准确的各项数据。在半潜式钻井平台上进行高温高压井测试是世界石油界探讨和努力解决的难题。防止意外井喷事故是测试的先决条件。对地面设备、井下工具和工艺方法的选取一切应以安全为前提，只有这样才能取全各项资料数据，确保顺利压井以及起出管柱。通过对一些测试成功井的技术总结，提出了对海上高温高压井测试技术的认识和看法，提出了目前存在的问题和今后有待于改进的方向。
High temperature and high pressure reservoirs were found in exploring the medium and deep lying formations in Yinggehai and Qiongdongnan Basins administrated by Nanhai West Corporation.With the assistance of domestic and foreign experts,an exploration well with a depth of 4 688 m had been drilled in Ya 21—1 structure with a submerged depth of 115 m in July 1994,and a suit of accurate data had been achieved through well testing,the formation pressure being 105.15 MPa and the formation temperature 206℃.The high temperature and high pressure well test carried out on a semisubmersible drilling platform is still a difficult problem which the petroleum circles in the world are discussing and taking great effort to solve.It is a prerequisite for testing to guard against the well blowout accident.The safety should be considered first,when the surface equipment,downhole tools and testing technology are chosen and only under the premise of safety,can the data be fully acheived,the well killing be smoothly carried out and the piple string be pulled out.Through a technologic summarization of some wells being successfully tested,an understanding of the testing techniques of offshore high temperature and high pressure wells,their existent problems and improvable trend in the future are proposed in the paper.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1999年第1期76-79,共4页
Natural Gas Industry
关键词
高温地层
钻井平台
中途测试
高压井
海上油气田
High temperature formation,High pressure,Semisubmersible drilling platform,Perforation
