OPTIMIZATION OF SAMPLE CLEANUP DURING FORMATION TESTING
摘要
Disclosed is a formation testing tool for extracting formation fluid from an earth formation penetrated by a borehole having a drilling fluid. The tool includes: a sample flow element configured to extract formation fluid from the formation in a sample zone; a sample zone seal forming a perimeter defining the sample zone; a contamination removal flow element configured to extract formation fluid contaminated with the drilling fluid from a contamination removal zone in the formation; a contamination removal zone seal forming a perimeter defining the contamination removal zone, which surrounds and excludes the sample zone; and a controller configured to control a sample flow rate in the sample flow element and a contamination removal flow rate in the contamination flow removal element in order to decrease an amount of time required to acquire a sample of the formation fluid having an acceptable amount of contamination.
申请公布号
WO2012103461(A2)
申请公布日期
2012.08.02
申请号
WO2012US22946
申请日期
2012.01.27
申请人
BAKER HUGHES INCORPORATED;STIBBE, HOLGER;MCEACHARN, RUSSELL;CERNOSEK, JAMES T.;SELF, ANTHONY D.;HETZ, AVIGDOR
发明人
STIBBE, HOLGER;MCEACHARN, RUSSELL;CERNOSEK, JAMES T.;SELF, ANTHONY D.;HETZ, AVIGDOR