Assignee
CHEN SONGHUA
US·7 granted patents·54 citations·filing 2008–2012
Top patents by PatentIndex Score
7 records- 0191US8646520B2Precision marking of subsurface locationsCHEN SONGHUA·Filed 2011·Granted Feb 11, 2014·15 cites·19 claims
- 0285US8610431B2NMR contrast loggingCHEN SONGHUA·Filed 2011·Granted Dec 17, 2013·7 cites·22 claims
- 0382US8692547B2Formation evaluation capability from near-wellbore logging using relative permeability modifiersCHEN SONGHUA·Filed 2011·Granted Apr 8, 2014·5 cites·17 claims
- 0481US8115481B2Method of discerning water from hydrocarbon fluids using downhole NMR instruments in petroleum reservoirs with formation brineCHEN SONGHUA·Filed 2008·Granted Feb 14, 2012·16 cites·18 claims
- 0580US8131469B2Data acquisition and processing for invasion profile and gas zone analysis with NMR dual or multiple interecho spacing time logsCHEN SONGHUA·Filed 2008·Granted Mar 6, 2012·10 cites·22 claims
- 0662US8866475B2Method for correcting NMR and nuclear logs in formate mud filtrate invaded formationsCHEN SONGHUA·Filed 2011·Granted Oct 21, 2014·1 cites·19 claims
- 0738US9575204B2Nuclear magnetic resonance logging tool having multiple pad-mounted atomic magnetometersCHEN SONGHUA·Filed 2012·Granted Feb 21, 2017·0 cites·22 claims
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