公开(公告)号：US07832501B2

公开(公告)日：2010-11-16

申请号：US11863336

申请日：2007-09-28

申请人： Fadhel Rezgui ,  Stéphane Vannuffelen

发明人： Fadhel Rezgui ,  Stéphane Vannuffelen

IPC分类号： E21B47/00

CPC分类号： E21B49/005 ,  G01N33/241

摘要： An apparatus for determining the nature of the formation at the bottom of a wellbore being drilled with a tubular drill string through which drilling fluid is pumped to return the drilling fluid to the surface via the wellbore, the apparatus comprising a tool body for installation in a drill string with a bore extending there through and an ultraviolet fluorescence detector in a passageway in the tool body, the tool body being configured to receive drilling fluid from inside the drill string and to receive drilling fluid from outside the drill string, wherein the drilling fluid can be directed past the detector so as to enable measurements to be made.

摘要翻译： 一种用于确定钻井底部的地层的性质的装置，其被钻出的管状钻柱通过钻井液被泵送以通过井筒将钻井液返回到表面，该装置包括用于安装在钻井中的工具主体 具有在其上延伸的孔的钻柱和在工具主体的通道中的紫外荧光检测器，工具主体被配置为从钻柱内部接收钻井液并从钻柱的外部接收钻井液，其中钻井液 可以被引导通过检测器，以便能够进行测量。