中国石油大学学报（自然科学版）Issue(4)：50-56,7.DOI:10.3969/j.issn.1673-5005.2014.04.007
储层岩石T2-G实验采集参数自动匹配技术研究
Automatic matching technology for determining acquisition parameters of formation rock T2-G experiment
摘要
Abstract
In Order tO sOlve the difficulties in determining the acquisitiOn parameters such as t0 and NEl when using the mOdi-fied CPMG( Car-Purcel-MeibOOm-Gill) sequence tO measure the internal magnetic field gradient Of fOrmatiOn rOck, an autO-matic matching technOlOgy fOr determining t0 and NEl was prOpOsed after summarizing the empirical rules applied in the field:the T2-G apprOximated distributiOn mOdel Of tested rOcks is first cOnstructed;then with the apprOximated mOdel the respOnse Of T2-G experiment is calculated by tuning t0 and NEl using numerical simulatiOn methOds, and lastly the suitable t0 and NEl are determined by using cOnstraints frOm the Optimal mOdel. The accuracy and efficiency Of the methOd is further verified in the T2-G experiment using eight sandstOne samples frOm different regiOns.关键词
改良式CPMG序列/内部磁场梯度/采集参数/自动匹配/数值模拟Key words
mOdified CPMG sequence/internal magnetic field gradient/acquisitiOn parameters/autOmatic matching/nu-merical simulatiOn分类
天文与地球科学引用本文复制引用
吴飞,范宜仁,邓少贵,邢东辉,刘玺,巫振观..储层岩石T2-G实验采集参数自动匹配技术研究[J].中国石油大学学报（自然科学版）,2014,(4):50-56,7.基金项目
“十二五”国家油气重大专项(20llZX05020008-002) （20llZX05020008-002）
国家自然科学基金项目(4ll74009) （4ll74009）
