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1. 发明申请

US20160281449A1 FLOW CONTROLLING DOWNHOLE TOOL 有权
标题翻译：流量控制工具
公开(公告)号：US20160281449A1
公开(公告)日：2016-09-29
申请号：US14771418
申请日：2014-12-02
申请人： TLL OILFIELD CONSULTING LTD. , ACURA MACHINE INC.
发明人： Troy Lorenson , David Nicholson , Petr Macek
IPC分类号： E21B21/10 , E21B7/24 , E21B6/02 , E21B4/02 , E21B21/08
CPC分类号： E21B21/103 , E21B4/02 , E21B6/02 , E21B7/24 , E21B21/08 , E21B21/10
摘要： A downhole tool assembly for use in a drilling string includes a motor, a flow head, and a flow restrictor. The flow head is coupled to the motor and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is in fluid communication with the flow head and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is stationary with respect to the flow head, which rotates. As the flow head rotates, one or more of the plurality of ports of the flow head enters into and out of alignment with one or more of the plurality of ports of the flow restrictor such that fluid flow through the ports of the flow head and the flow restrictor is constrained to a cyclic, polyrhythmic pattern optionally including at least one interval where the fluid flow is substantially blocked by the flow restrictor.
摘要翻译：用于钻柱的井下工具组件包括马达，流动头和限流器。流动头连接到电动机并且包括允许流体连通的多个端口。流量限制器与流动头流体连通，并且包括允许流体连通的多个端口。流量限制器相对于旋转的流动头是静止的。当流动头旋转时，流动头部的多个端口中的一个或多个进入流量限制器的多个端口中的一个或多个端口并与其脱离对准，使得流体流过流动头部的端口和流量限制器被限制为可选地包括流体流被流量限制器基本阻塞的至少一个间隔的循环，多节律性模式。

2. 发明授权

US09637976B2 Downhole drilling tool 有权
公开(公告)号：US09637976B2
公开(公告)日：2017-05-02
申请号：US14153646
申请日：2014-01-13
申请人： TLL Oilfield Consulting Ltd. , Acura Machine Inc.
发明人： Troy Lorenson , Dave Nicholson , Petr Macek
IPC分类号： E21B7/24 , E21B4/02 , E21B21/10 , E21B7/06
CPC分类号： E21B4/02 , E21B7/065 , E21B21/10
摘要： A directional drilling tool includes a housing defining a central cavity for enabling the transmission of drilling fluid through the drill string. A motor contained in the housing includes a rotor-stator assembly, and produces eccentric motion of the rotor. An inverter or shock absorbing assembly disposed along the housing upstream from the motor functions to expend and contract the central cavity in response to fluid pressure changes produced by the drilling fluid flow. A valve assembly, comprising a multi-port flow head that rotates under influence of the motor and a multi-port flow restrictor, creates a varying pattern of pressure spikes in the drilling fluid as the ports of the flow head move into and out of alignment with the ports of the flow restrictor, which in turn induces a percussive effect and axial movement in the drill string.

3. 发明授权

US09765584B2 Flow controlling downhole tool 有权
公开(公告)号：US09765584B2
公开(公告)日：2017-09-19
申请号：US14771418
申请日：2014-12-02
申请人： TLL Oilfield Consulting Ltd.
发明人： Troy Lorenson , David Nicholson , Petr Macek
IPC分类号： E21B21/08 , E21B21/10 , E21B4/02 , E21B6/02 , E21B7/24
CPC分类号： E21B21/103 , E21B4/02 , E21B6/02 , E21B7/24 , E21B21/08 , E21B21/10
摘要： A downhole tool assembly for use in a drilling string includes a motor, a flow head, and a flow restrictor. The flow head is coupled to the motor and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is in fluid communication with the flow head and comprises a plurality of ports permitting fluid communication therethrough. The flow restrictor is stationary with respect to the flow head, which rotates. As the flow head rotates, one or more of the plurality of ports of the flow head enters into and out of alignment with one or more of the plurality of ports of the flow restrictor such that fluid flow through the ports of the flow head and the flow restrictor is constrained to a cyclic, polyrhythmic pattern optionally including at least one interval where the fluid flow is substantially blocked by the flow restrictor.

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