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1. 发明申请

WO2012138383A2 DRILLING MOTOR VALVE AND METHOD OF USING SAME 审中-公开
标题翻译：钻孔电机阀及其使用方法
公开(公告)号：WO2012138383A2
公开(公告)日：2012-10-11
申请号：PCT/US2011/059789
申请日：2011-11-08
申请人： NATIONAL OIL WELL VARCO, L.P. , LANNING, Curtis , PHUNG, Dong , SCHEN, Aaron , RIDDEL, Jacob
发明人： LANNING, Curtis , PHUNG, Dong , SCHEN, Aaron , RIDDEL, Jacob
IPC分类号： E21B4/02
CPC分类号： E21B6/02 , E21B4/02 , E21B4/06 , E21B4/14 , E21B7/24 , E21B21/103 , E21B34/06 , F01C1/107 , F04C2/1073 , F04C13/008 , F04C14/26 , F04C2240/603 , F04C2270/12
摘要： A valve for controlling the flow of a drilling fluid through a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a drilling motor therein and a drill bit at an end thereof. The drilling motor has a housing with a rotor rotationally movable in a rotor channel as the drilling fluid passes through a rotor channel between the housing and the rotor. The rotor has a bypass channel therethrough for bypassing a portion of the drilling fluid therethrough. The valve includes a valve plate positionable upstream of the motor. The valve plate has at least one flow passage and at least one bypass passage therethrough. The flow passage is in fluid communication with the rotor channel for passing the drilling fluid therethrough. The bypass passage is in selective fluid communication with the bypass channel when the rotor rotates about the housing and moves the bypass channel into alignment with at least a portion of the bypass passage for bypassing a portion of the drilling fluid therethrough whereby a hammering effect is generated on the bit.
摘要翻译：一种阀，用于控制钻井液通过位于穿透地下地层的井眼中的井下工具的流动。井下工具具有其中具有钻孔电机的壳体和在其末端的钻头。当钻井液通过壳体和转子之间的转子通道时，钻井马达具有壳体，该壳体具有可在转子通道中旋转移动的转子。转子具有穿过其的旁路通道，用于绕过其中的钻井液的一部分。该阀包括可位于马达上游的阀板。阀板具有至少一个流动通道和至少一个旁通通道。流动通道与转子通道流体连通，以使钻井液通过其中。当转子围绕壳体旋转时，旁路通道与旁路通道选择性地流体连通，并且使旁通通道与旁路通道的至少一部分对准，以绕过钻井流体的一部分，从而产生锤击效应在位上

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