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1. 发明申请

US20110139506A1 PRESSURE AND FLOW CONTROL IN DRILLING OPERATIONS 有权
标题翻译：钻井作业中的压力和流量控制
公开(公告)号：US20110139506A1
公开(公告)日：2011-06-16
申请号：US12638012
申请日：2009-12-15
申请人： James R. LOVORN , Carlos BRUDER , Neal G. SKINNER , Joe KARIGAN
发明人： James R. LOVORN , Carlos BRUDER , Neal G. SKINNER , Joe KARIGAN
IPC分类号： E21B21/10 , E21B21/08 , E21B44/00 , E21B7/00
CPC分类号： E21B21/08 , E21B21/10
摘要： A well drilling system for use with a drilling fluid pump includes a flow control device regulating flow from the pump to a drill string interior; and another flow control device regulating flow through a line in communication with an annulus. Flow is simultaneously permitted through the flow control devices. A method of maintaining a desired bottom hole pressure includes dividing drilling fluid flow between a line in communication with a drill string interior and a line in communication with an annulus; the flow dividing step including permitting flow through a flow control device interconnected between a pump and the drill string interior; and the flow dividing step including permitting flow through another flow control device interconnected between the pump and the annulus, while flow is permitted through the first flow control device.
摘要翻译：用于钻井液泵的钻井系统包括调节从泵到钻柱内部的流动的流量控制装置; 以及另一个流量控制装置，其调节通过与环形空间连通的线路的流动。通过流量控制装置同时允许流量。保持所需井底压力的方法包括在与钻柱内部连通的管线与与环空连通的管线之间划分钻井液流; 所述分流步骤包括允许通过在泵和所述钻柱内部之间互连的流量控制装置的流动; 并且所述分流步骤包括允许通过所述泵和所述环之间互连的另一流量控制装置的流动，同时允许通过所述第一流量控制装置的流动。

2. 发明授权

US08281875B2 Pressure and flow control in drilling operations 有权
标题翻译：钻井作业中的压力和流量控制
公开(公告)号：US08281875B2
公开(公告)日：2012-10-09
申请号：US12638012
申请日：2009-12-15
申请人： James R. Lovorn , Carlos Bruder , Neal G. Skinner , Joe Karigan
发明人： James R. Lovorn , Carlos Bruder , Neal G. Skinner , Joe Karigan
IPC分类号： E21B44/00
CPC分类号： E21B21/08 , E21B21/10
摘要： A well drilling system for use with a drilling fluid pump includes a flow control device regulating flow from the pump to a drill string interior; and another flow control device regulating flow through a line in communication with an annulus. Flow is simultaneously permitted through the flow control devices. A method of maintaining a desired bottom hole pressure includes dividing drilling fluid flow between a line in communication with a drill string interior and a line in communication with an annulus; the flow dividing step including permitting flow through a flow control device interconnected between a pump and the drill string interior; and the flow dividing step including permitting flow through another flow control device interconnected between the pump and the annulus, while flow is permitted through the first flow control device.
摘要翻译：用于钻井液泵的钻井系统包括调节从泵到钻柱内部的流动的流量控制装置; 以及另一个流量控制装置，其调节通过与环形空间连通的线路的流动。通过流量控制装置同时允许流量。保持所需井底压力的方法包括在与钻柱内部连通的管线与与环空连通的管线之间划分钻井液流; 所述分流步骤包括允许通过在泵和所述钻柱内部之间互连的流量控制装置的流动; 并且所述分流步骤包括允许通过所述泵和所述环之间互连的另一流量控制装置的流动，同时允许通过所述第一流量控制装置的流动。

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