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1. 发明授权

US07430153B2 Downhole tool and method 有权
标题翻译：井下工具及方法
公开(公告)号：US07430153B2
公开(公告)日：2008-09-30
申请号：US10929345
申请日：2004-08-26
申请人： Simon Benedict Fraser , William Brown-Kerr , John Knight
发明人： Simon Benedict Fraser , William Brown-Kerr , John Knight
IPC分类号： E21B47/18
CPC分类号： E21B47/187
摘要： A downhole tool for generating a fluid pressure pulse, and to a method of generating a fluid pressure pulse downhole. One example being, an improved downhole tool and method for transmitting data signals from a downhole environment to surface, the downhole tool comprising a fluid actuated flow restrictor; a first fluid flow path for flow of actuating fluid to actuate the flow restrictor; a second fluid flow path for flow of actuating fluid to actuate the flow restrictor; and a control member movable between a first closed position where the first fluid flow path is closed and the second fluid flow path is open, and a discrete second closed position where the first fluid flow path is open and the second fluid flow path is closed, for controlling actuation of the flow restrictor to generate a fluid pressure pulse.
摘要翻译：一种用于产生流体压力脉冲的井下工具，以及在井下产生流体压力脉冲的方法。一个示例是改进的井下工具和用于将数据信号从井下环境传输到地面的方法，所述井下工具包括流体致动的限流器; 第一流体流动路径，用于致动流体以致动流量限制器; 第二流体流动路径，用于致动流体以促动流量限制器; 以及控制构件，其能够在第一流体通路闭合的第一关闭位置与第二流体流路开放的第一关闭位置和第二流体流路闭合的离散的第二关闭位置之间移动，用于控制限流器的致动以产生流体压力脉冲。

2. 发明授权

US07387167B2 Insulating device and assembly 有权
标题翻译：绝缘装置和装配
公开(公告)号：US07387167B2
公开(公告)日：2008-06-17
申请号：US10482679
申请日：2002-07-01
申请人： Simon Benedict Fraser , William Brown-Kerr , John Knight
发明人： Simon Benedict Fraser , William Brown-Kerr , John Knight
IPC分类号： E21B17/02 , F16L55/00
CPC分类号： E21B17/028 , F16L25/021
摘要： There is disclosed an electrically insulating device in the form of a sleeve (12) for a downhole tool, for electrically insulating a first threaded electrically conductive member in the form of an anchor sub (16) from a second threaded electrically conductive member in the form of an insulated sub (18).An assembly (10) including the sleeve (12) has particular use in measurement while drilling (MWD)/logging while drilling (LWD) procedures. In one embodiment, a third member in the form of a threaded electrically conductive sleeve sub (20) is coupled to the insulated sub by a second sleeve (14), to create an insulated gap between the anchor and sleeve subs (16, 20).
摘要翻译：公开了一种用于井下工具的套筒（12）形式的电绝缘装置，用于将锚子（16）形式的第一螺纹导电构件与形式为第二螺纹导电构件的绝缘子（18）。包括套筒（12）的组件（10）在钻孔（MWD）/测井同时进行钻井（LWD）程序时具有特别的用途。在一个实施例中，螺纹导电套筒子（20）形式的第三构件通过第二套筒（14）联接到绝缘子，以在锚定件和套筒衬套（16,20）之间形成绝缘的间隙，。

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