公开(公告)号：US09022102B2

公开(公告)日：2015-05-05

申请号：US12999779

申请日：2009-06-16

申请人： Steven Martin Hudson ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston ,  Robert Charles Bromwich

发明人： Steven Martin Hudson ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston ,  Robert Charles Bromwich

IPC分类号： E21B23/00 ,  E21B34/06 ,  G01V11/00 ,  E21B47/12

CPC分类号： G01V11/002 ,  E21B34/066 ,  E21B47/12

摘要： A well installation includes a metallic structure having downhole metallic tubing for conveying product towards the surface, a sub surface safety valve disposed in the downhole metallic tubing for interrupting flow of product towards the surface when closed and allowing flow of product towards the surface when open. Also, valve control means are disposed downhole and arranged for detecting electrical signals in the downhole metallic tubing and for holding the valve open while receiving an electrical signal, and surface signaling means for applying an electrical signal to metallic structure of the well for transmission via the downhole metallic tubing towards the valve control means so as to hold the valve open. The system can be made more robust by ensuring that the control means will only hold the valve open while receiving a signal of given characteristics to help prevent stray currents erroneously holding the valve open.

摘要翻译： 井的安装包括具有用于将产品朝向表面输送的井下金属管的金属结构，设置在井下金属管中的子表面安全阀，用于在关闭时中断产品流向表面，并允许产品在打开时朝向表面流动。 而且，阀门控制装置设置在井下并被布置用于检测井下金属管道中的电信号并且用于在接收电信号时保持阀门打开;以及表面信号装置，用于将电信号施加到井的金属结构以经由 井下金属管道朝向阀门控制装置，以便保持阀门打开。 通过确保控制装置仅在接收到给定特性的信号的同时保持阀打开以帮助防止错误地保持阀打开的杂散电流，使系统变得更加坚固。

公开(公告)号：US20110094752A1

公开(公告)日：2011-04-28

申请号：US12999779

申请日：2009-06-16

申请人： Steven Martin Hudson ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston ,  Robert Charles Bromwich

发明人： Steven Martin Hudson ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston ,  Robert Charles Bromwich

IPC分类号： E21B34/06 ,  E21B34/16

CPC分类号： G01V11/002 ,  E21B34/066 ,  E21B47/12

摘要： A well installation including metallic structure having downhole metallic tubing for conveying product towards the surface, a sub surface safety valve disposed in the downhole metallic tubing for interrupting flow of product towards the surface when closed and allowing flow of product towards the surface when open. Also, valve control means are disposed downhole and arranged for detecting electrical signals in the downhole metallic tubing and for holding the valve open while receiving an electrical signal, and surface signaling means for applying an electrical signal to metallic structure of the well for transmission via the downhole metallic tubing towards the valve control means so as to hold the valve open. The system can be made more robust by ensuring that the control means will only hold the valve open while receiving a signal of given characteristics to help prevent stray currents erroneously holding the valve open. This signal selective aspect of the system may be implemented using a tuned impedance generation means.

摘要翻译： 一种井下安装，包括具有用于将产品朝向表面输送的井下金属管的金属结构，设置在井下金属管中的子表面安全阀，用于在关闭时中断产品流向表面，并允许产品在打开时朝向表面流动。 而且，阀门控制装置设置在井下并被布置用于检测井下金属管道中的电信号并且用于在接收电信号时保持阀门打开;以及表面信号装置，用于将电信号施加到井的金属结构以经由 井下金属管道朝向阀门控制装置，以便保持阀门打开。 通过确保控制装置仅在接收到给定特性的信号的同时保持阀打开以帮助防止错误地保持阀打开的杂散电流，使系统变得更加坚固。 可以使用调谐阻抗产生装置来实现系统的该信号选择性方面。

公开(公告)号：US09371727B2

公开(公告)日：2016-06-21

申请号：US13994295

申请日：2011-12-08

申请人： Steven Martin Hudson ,  Robert Charles Bromwich ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston

发明人： Steven Martin Hudson ,  Robert Charles Bromwich ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston

IPC分类号： E21B47/04 ,  E21B47/12

CPC分类号： E21B47/042 ,  E21B47/121 ,  E21B47/122

摘要： Downhole water level detecting apparatus for detecting the level of water in a formation in the region of a well installation. The detecting apparatus includes a transmitter for applying electrical signals to a signaling loop at a first location. The signaling loop includes a downhole metallic structure of the well installation and an earth return. The detecting apparatus also includes a detector for monitoring electrical signals in the signaling loop, and an evaluation unit arranged for determining a level of water in the formation relative to the downhole metallic structure in dependence on the monitored signals.

摘要翻译： 井下水位检测装置，用于检测钻井设备区域中地层中的水位。 检测装置包括用于在第一位置向信令环路施加电信号的发射机。 信号环路包括井下安装的井下金属结构和地回路。 检测装置还包括用于监测信号回路中的电信号的检测器，以及评估单元，其被配置为根据所监视的信号来确定地层中相对于井下金属结构的水位。

公开(公告)号：US20140002088A1

公开(公告)日：2014-01-02

申请号：US13994295

申请日：2011-12-08

申请人： Steven Martin Hudson ,  Robert Charles Bromwich ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston

发明人： Steven Martin Hudson ,  Robert Charles Bromwich ,  Alexandra Vasil'evna Rogacheva ,  Bridget Mary Weston

IPC分类号： E21B47/04

CPC分类号： E21B47/042 ,  E21B47/121 ,  E21B47/122

摘要： Downhole water level detecting apparatus for detecting the level of water in a formation in the region of a well installation. The detecting apparatus includes a transmitter for applying electrical signals to a signaling loop at a first location. The signaling loop includes a downhole metallic structure of the well installation and an earth return. The detecting apparatus also includes a detector for monitoring electrical signals in the signaling loop, and an evaluation unit arranged for determining a level of water in the formation relative to the downhole metallic structure in dependence on the monitored signals.

摘要翻译： 井下水位检测装置，用于检测钻井设备区域中地层中的水位。 检测装置包括用于在第一位置向信令环路施加电信号的发射机。 信号环路包括井下安装的井下金属结构和地回路。 检测装置还包括用于监测信号回路中的电信号的检测器，以及评估单元，其被配置为根据所监视的信号来确定地层中相对于井下金属结构的水位。