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1. 发明申请

US20080115971A1 Remote Gas Monitoring Apparatus for Sealed Drilling 有权
标题翻译：用于密封钻井的远程气体监测装置
公开(公告)号：US20080115971A1
公开(公告)日：2008-05-22
申请号：US11574921
申请日：2005-09-05
申请人： Joseph Patrick Kelleher , David Stephen Payor
发明人： Joseph Patrick Kelleher , David Stephen Payor
IPC分类号： E21B43/01
CPC分类号： E21B21/08 , E21B21/001 , E21B21/067 , E21B33/035 , E21B33/038 , E21B43/36 , E21B49/001 , E21B49/08 , E21B2043/0115
摘要： Gas monitoring apparatus associated with a remotely operated seabed system, the apparatus including a detector which is adapted so as to enable detection and/or measurement in real time the interception of shallow gas in a bore hole. In one form the gas monitoring apparatus is suitable for use with a drilling rig for drilling into a sea bed, the drilling rig including a drill string. The gas monitoring apparatus includes a housing with a collecting chamber therein for receiving drilling fluid returns which result from a drilling operation. The apparatus further includes a discharge conduit for discharging the drilling fluid returns from the collecting chamber, the collecting chamber and discharge conduit being configured so that the drilling fluid is discharged in a stratified flow which includes a predominantly dissolved gas containing phase, and if present a free gaseous phase. A gas sensor is associated with the discharge conduit and positioned so as to sense any gas in the predominantly dissolved gas containing phase and transmit the measured gas concentration signal in real-time to a surface operating station. In another form the apparatus includes a gas monitoring probe assembly suitable for use with a drilling rig for drilling into a sea bed, the gas monitoring probe assembly including a housing attachable to one end of a drill string of the rig and which includes a gas sensor having a gas sensor face within the housing.
摘要翻译：与远程操作的海底系统相关联的气体监测装置，该装置包括检测器，该检测器适于使得能够实时地检测和/或测量钻孔中浅层气体的截留。在一种形式中，气体监测装置适于与用于钻入海床的钻机一起使用，该钻机包括钻柱。气体监测装置包括其中具有收集室的壳体，用于接收钻井操作产生的钻井液返回。该装置还包括排放管道，用于排出从收集室返回的钻井液，收集室和排出管道构造成使钻井液以包括主要溶解的含气相的分层流排出，如果存在自由气相。气体传感器与排放管道相关联并且被定位成感测主要溶解的含气体相中的任何气体，并将测量的气体浓度信号实时传输到地面操作站。在另一种形式中，该装置包括适于与用于钻入海床的钻机一起使用的气体监测探测器组件，气体监测探测器组件包括可附接到钻机的钻柱的一端的壳体，其包括气体传感器在壳体内具有气体传感器面。

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