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公开(公告)号：US20110214871A1
公开(公告)日：2011-09-08
申请号：US12716921
申请日：2010-03-03
IPC分类号： E21B21/00
CPC分类号： E21B33/085 , E21B17/01 , F16C41/005 , F16C2235/00 , F16C2352/00
摘要： A method of flushing a wellbore fluid from a downhole tool containing a bearing package includes pumping hydraulic oil through at least one of a hydraulic inlet line and at least one of a pneumatic inlet line connected to the main housing and into an annulus formed between the bearing package and a main housing of the downhole tool, wherein the hydraulic oil replaces the wellbore fluid in the annulus, removing the wellbore fluid from the annulus through at least one hydraulic outlet line and at least one pneumatic outlet line connected to the main housing, pumping air through the at least one pneumatic inlet line connected to the main housing and removing the hydraulic oil from the at least one pneumatic inlet line connected to the main housing, and removing the hydraulic oil through at least one pneumatic outlet line connected to the main housing.
摘要翻译： 从包含轴承组件的井下工具冲洗井筒流体的方法包括：泵送液压油通过液压入口管线和至少一个连接到主壳体的气动入口管线中的至少一个并且形成在轴承 封装和井下工具的主壳体，其中液压油替代环形空间中的井眼流体，通过至少一个液压出口管线和连接到主壳体的至少一个气动出口管线从环空中移除井筒流体，泵送 空气通过连接到主壳体的至少一个气动入口管线并且从连接到主壳体的至少一个气动入口管线移除液压油，以及通过连接到主壳体的至少一个气动出口管线去除液压油 。
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公开(公告)号：US08381816B2
公开(公告)日：2013-02-26
申请号：US12716921
申请日：2010-03-03
CPC分类号： E21B33/085 , E21B17/01 , F16C41/005 , F16C2235/00 , F16C2352/00
摘要： A method of flushing a wellbore fluid from a downhole tool containing a bearing package includes pumping hydraulic oil through at least one of a hydraulic inlet line and at least one of a pneumatic inlet line connected to the main housing and into an annulus formed between the bearing package and a main housing of the downhole tool, wherein the hydraulic oil replaces the wellbore fluid in the annulus, removing the wellbore fluid from the annulus through at least one hydraulic outlet line and at least one pneumatic outlet line connected to the main housing, pumping air through the at least one pneumatic inlet line connected to the main housing and removing the hydraulic oil from the at least one pneumatic inlet line connected to the main housing, and removing the hydraulic oil through at least one pneumatic outlet line connected to the main housing.
摘要翻译： 从包含轴承组件的井下工具冲洗井筒流体的方法包括：泵送液压油通过液压入口管线和至少一个连接到主壳体的气动入口管线中的至少一个并且形成在轴承 封装和井下工具的主壳体，其中液压油替代环形空间中的井眼流体，通过至少一个液压出口管线和连接到主壳体的至少一个气动出口管线从环空中移除井筒流体，泵送 空气通过连接到主壳体的至少一个气动入口管线并且从连接到主壳体的至少一个气动入口管线移除液压油，以及通过连接到主壳体的至少一个气动出口管线去除液压油 。
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