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公开(公告)号：US20200333501A1
公开(公告)日：2020-10-22
申请号：US16746452
申请日：2020-01-17
摘要： An NMR logging system is disclosed which continues logging without interruption despite switching activation sets to adapt to changes in formation properties. Based on detection of an approaching or encountered geological boundary, an appropriate activation set is transmitted to the downhole NMR tool while the NMR tool continues logging. This system optimizes NMR data collection for each formation and associated formation fluid properties while reducing the need to stop the tool string movement while switching the activation set, and reduces incomplete collection of NMR and non-NMR logging tool data.
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公开(公告)号：US11169295B2
公开(公告)日：2021-11-09
申请号：US16746452
申请日：2020-01-17
摘要： An NMR logging system is disclosed which continues logging without interruption despite switching activation sets to adapt to changes in formation properties. Based on detection of an approaching or encountered geological boundary, an appropriate activation set is transmitted to the downhole NMR tool while the NMR tool continues logging. This system optimizes NMR data collection for each formation and associated formation fluid properties while reducing the need to stop the tool string movement while switching the activation set, and reduces incomplete collection of NMR and non-NMR logging tool data.
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公开(公告)号：US10422915B2
公开(公告)日：2019-09-24
申请号：US15524955
申请日：2015-12-29
IPC分类号： G01V3/32 , G01V3/14 , G01N24/08 , G01R33/341 , G01R33/38 , G01R33/3873
摘要： Nuclear magnetic resonance apparatuses and systems are described. In an example, the apparatus comprises a tool housing and a magnet assembly disposed within the tool housing to produce a magnetic field in a volume in a geological formation. An external housing containing an antenna assembly is coupled to the tool housing.
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