发明公开
EP2806100A1 Method for monitoring the drilling of a well using a floating drilling rig and associated monitoring system
审中-公开
使用浮动钻井平台监测钻孔的钻井的方法和相关联的监控系统
- 专利标题： Method for monitoring the drilling of a well using a floating drilling rig and associated monitoring system
- 专利标题（中）： 使用浮动钻井平台监测钻孔的钻井的方法和相关联的监控系统
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申请号： EP13305675.4申请日： 2013-05-24
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公开(公告)号： EP2806100A1公开(公告)日： 2014-11-26
- 发明人: Cadalen, Sébastien
- 申请人： Geoservices Equipements
- 申请人地址： 127, avenue du Bois de la Pie Paris Nord II 95700 Roissy en France FR
- 专利权人： Geoservices Equipements
- 当前专利权人： Geoservices Equipements
- 当前专利权人地址： 127, avenue du Bois de la Pie Paris Nord II 95700 Roissy en France FR
- 代理机构： Rzaniak, Martin
- 主分类号： E21B47/10
- IPC分类号： E21B47/10 ; E21B49/00 ; E21B21/00 ; E21B21/08
摘要：
Method of monitoring the drilling of a well (13) using an installation (11) comprising a drilling rig (17) floating on the sea (24) the method comprising the steps of:
- obtaining an injection flow rate of a drilling fluid,
- measuring a flow of a drilling mud recovered from the well in a discharge pipe (25) connected to a diverter (23) of the slip-joint at a discharge measurement point (C),
- selecting a comparison point (C') located between the diverter and the discharge measurement point,
- obtaining a slope value (0) representative of an angle of the discharge pipe with respect to a horizontal plane (P.
- modeling a flow of the drilling mud along the discharge pipe
- calculating a first flow rate of the drilling mud at the comparison point using the injection flow rate, and a second flow rate at the comparison point using the measured discharge flow rate, and
- performing a comparison between the first drilling mud flow rate and the second drilling mud flow rate to monitor the drilling.
- obtaining an injection flow rate of a drilling fluid,
- measuring a flow of a drilling mud recovered from the well in a discharge pipe (25) connected to a diverter (23) of the slip-joint at a discharge measurement point (C),
- selecting a comparison point (C') located between the diverter and the discharge measurement point,
- obtaining a slope value (0) representative of an angle of the discharge pipe with respect to a horizontal plane (P.
- modeling a flow of the drilling mud along the discharge pipe
- calculating a first flow rate of the drilling mud at the comparison point using the injection flow rate, and a second flow rate at the comparison point using the measured discharge flow rate, and
- performing a comparison between the first drilling mud flow rate and the second drilling mud flow rate to monitor the drilling.
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