辽宁石油化工大学学报2024，Vol.44Issue(5)：61-65,5.DOI:10.12422/j.issn.1672-6952.2024.05.009
随钻地层压力监测技术在深层-超深层井的应用
Application of Formation Pressure Monitoring While Drilling Technology in Deep and Ultra-Deep Formation
摘要
Abstract
There are several sets of formation pressure systems in Y structure of block X in Bohai Sea.Shahejie Formation and its upper strata are sedimentary undercompacted layers.dc index method is adopted to monitor formation pressure.The Mesozoic buried-hills are widely distributed in medium acid volcanic rocks,which are non-sedimentary underpressure layers.The formation pressure monitoring method of Sigma index is used to monitor the formation pressure.The real drilling shows that the formation pressure monitoring method of dc index has good applicability in the formation profile pressure monitoring dominated by sand and mudstone.The formation pressure monitoring method of Sigma index has a good application effect in the non-sand mudstone formation profile pressure monitoring,and the combined application of the two provides effective technical support for the smooth drilling.The application of Sigma index formation pressure monitoring method in deep and ultra-deep layers effectively improves the accuracy of the deep and ultra-deep layer pressure monitoring technology while drilling.The practical application shows that the results of formation pressure monitoring while drilling are in good conformity with the measured formation pressure results,and the formation pressure monitoring method of Sigma index has the value of popularization and application in deep and ultra-deep formation.关键词
深层/欠压实地层/非欠压实地层/dc指数法/Sigma指数法Key words
Deep formation/Undercompacted formation/Non-undercompacted formation/dc index method/Sigma index method分类
能源科技引用本文复制引用
张兴华,倪朋勃,吴昊晟,孙源,刘士彬,殷赛..随钻地层压力监测技术在深层-超深层井的应用[J].辽宁石油化工大学学报,2024,44(5):61-65,5.基金项目
中国海洋石油有限公司"十四五"重大科技项目"海上深层/超深层油气勘探技术"(KJGG2022-0405). （KJGG2022-0405）
