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公开(公告)号：EP1625422A2
公开(公告)日：2006-02-15
申请号：EP04752937.5
申请日：2004-05-21
IPC分类号： G01V3/32
CPC分类号： E21B33/1243 , E21B43/26 , E21B49/008 , E21B49/06 , E21B49/10 , E21B2041/0028 , G01N3/32 , G01N15/082 , G01N24/081 , G01V3/32
摘要： An apparatus and method for determining a parameter of interest of a formation composed of carbonate rock. A nuclear magnetic resonance (NMR) sensor assembly produces a pulsed RF field designed for obtaining measurements indicative of the parameter of interest of the formation. A downhole processor processes the measurements for obtaining BVI and BVM using a cutoff time based on classification of the carbonate. Further processing is done to estimate the permeability of the carbonate.
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公开(公告)号：EP1625422B1
公开(公告)日：2007-04-25
申请号：EP04752937.5
申请日：2004-05-21
发明人： KRUSPE, Thomas , KIESEL, Christian , THERN, Holger , HINZE, Iris
IPC分类号： G01V3/32
CPC分类号： E21B33/1243 , E21B43/26 , E21B49/008 , E21B49/06 , E21B49/10 , E21B2041/0028 , G01N3/32 , G01N15/082 , G01N24/081 , G01V3/32
摘要： An apparatus and method for determining a parameter of interest of a formation composed of carbonate rock. A nuclear magnetic resonance (NMR) sensor assembly produces a pulsed RF field designed for obtaining measurements indicative of the parameter of interest of the formation. A downhole processor processes the measurements for obtaining BVI and BVM using a cutoff time based on classification of the carbonate. Further processing is done to estimate the permeability of the carbonate.
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