-
公开(公告)号：EP3169872A4
公开(公告)日：2018-02-21
申请号：EP16781993
申请日：2016-04-12
发明人： SHAW TIM , MERCER JOHN E , CHAU ALBERT W
IPC分类号： E21B47/022 , E21B7/06 , G01V3/18
CPC分类号： E21B7/06 , E21B44/005 , E21B47/02224 , E21B47/024 , E21B47/122 , G01V3/081 , G01V3/15 , G01V3/18 , G01V3/34 , G01V3/38
摘要： A boring tool is movable through the ground. A transmitter supported by the boring tool transmits an electromagnetic homing signal. A portable device monitors the electromagnetic homing signal and receives the electromagnetic homing signal in a homing mode for guiding the boring tool to a target position. A processor generates steering commands for guiding the boring tool based on a bore plan in a steering mode such that at least some positional error is introduced without using the electromagnetic homing signal. Switching from the steering mode to the homing mode is based on monitoring of the electromagnetic homing signal as the boring tool approaches the portable device to then guide the boring tool to the target position location in compensation for the positional error. Intermediate target positions are described as well as guiding the boring tool based on the homing signal so long as the portable device receives the signal.
-
公开(公告)号：EP2971498A4
公开(公告)日：2016-11-16
申请号：EP14769021
申请日：2014-03-13
发明人： CHAU ALBERT W , LAM LOC VIET , PHILLIPS SCOTT
IPC分类号： E21B47/12 , E21B47/024
CPC分类号： E21B47/122 , E21B7/046 , E21B47/024
-
公开(公告)号：EP2875204A4
公开(公告)日：2016-07-27
申请号：EP13819757
申请日：2013-07-19
CPC分类号： E21B47/024 , E21B7/046 , E21B21/08 , E21B44/00 , E21B47/02 , E21B47/06 , E21B47/10 , E21B47/12 , E21B47/122 , G01V3/18
摘要： Systems, apparatus and methods are described for purposes of initiating a response to detection of an adverse operational condition involving a system including a drill rig and an inground tool. The response can be based on an uphole sensed parameter in combination with a downhole sensed parameter. The adverse operational condition can involve cross-bore detection, frac-out detection, excessive downhole pressure, a plugged jet indication and drill string key-holing detection. A communication system includes an inground communication link that allows bidirectional communication between a walkover detector and the drill rig via the inground tool. Monitoring of inground tool depth and/or lateral movement can be performed using techniques that approach integrated values. Bit force based auto-carving is described in the context of an automated procedure.
-
4.发明公开
公开(公告)号：EP3164719A4
公开(公告)日：2018-02-14
申请号：EP15814989
申请日：2015-07-02
发明人： CHAU ALBERT W , MERCER JOHN E , PHILLIPS SCOTT
CPC分类号： G01P15/18
摘要： An accelerometer arrangement and method are described for determining accelerations of an inground tool. First and second triaxial accelerometers are supported such that a normal sensing axis of the first triaxial accelerometer is at least generally orthogonal to the normal sensing axis of the second triaxial accelerometer for determining the accelerations along the three orthogonal axes based on a combination of sensing axis outputs from one or both of the triaxial accelerometers. A weaker sensing axis of one triaxial accelerometer can be supported at least approximately normal to a weaker sensing axis of another triaxial accelerometer such that the weaker axes are not used. The triaxial accelerometers can be supported such that one axis of one accelerometer can be redundant with respect to another axis of another accelerometer. One triaxial accelerometer can be mounted on a tilted plane with respect to another triaxial accelerometer.
-
5.发明公开
公开(公告)号：EP2971499A4
公开(公告)日：2016-11-09
申请号：EP14773317
申请日：2014-03-10
发明人： CHAU ALBERT W , THEIMER KENNETH J
CPC分类号： E21B47/01 , E21B7/046 , E21B17/003 , E21B47/011 , E21B47/024
-
6.发明公开
公开(公告)号：EP2888445A4
公开(公告)日：2016-08-10
申请号：EP13830793
申请日：2013-08-20
发明人： CHAU ALBERT W , THEIMER KENNETH J
CPC分类号： E21B17/028 , E21B7/028 , E21B17/003 , E21B47/00 , E21B47/024 , E21B47/122 , G01V3/34
摘要： An inground isolator and associated method can provide an electrically isolated break in a drill string using electrical insulating members/isolators that are supported by a housing. During drill string operations, the isolators are subject only compressive forces responsive to both extension (pushing) and retraction (pulling) by the drill string. The isolators can be formed from an electrically insulating material such as a ceramic material. An interchangeable inground tool system is described which integrally serves to provide an electrically isolating gap in the drill string.
摘要翻译： 环形隔离器和相关方法可以使用由壳体支撑的电绝缘构件/隔离器在钻柱中提供电隔离的断裂。 在钻柱操作期间，隔离器仅受到响应于钻柱的延伸（推动）和缩回（拉动）的压缩力。 隔离器可以由诸如陶瓷材料的电绝缘材料形成。 描述了可互换的嵌入式工具系统，其一体地用于在钻柱中提供电隔离间隙。
-
7.发明公开ADVANCED DRILL STRING COMMUNICATION SYSTEM, COMPONENTS AND METHODS 审中-公开维多利亚公民组织BORRSTRANGKOMMUNIKATIONSSYSTEM，KOMPONENTENDAFÜRUND VERFAHREN DAMIT
公开(公告)号：EP2800871A4
公开(公告)日：2016-06-15
申请号：EP13733871
申请日：2013-01-04
发明人： CHAU ALBERT W , LAM LOC VIET
IPC分类号： E21B47/12 , E21B47/024 , E21B47/13 , H04B3/04 , H04B15/00
CPC分类号： E21B47/12 , E21B7/046 , E21B7/30 , E21B47/091 , E21B47/121 , G01V3/30
摘要： A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active/inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function.
摘要翻译： 描述钻柱通信系统。 井上收发器可以将信号耦合到钻柱上，其功率总是大于用于井下信号的可选功率。 可以使用井下收发器的最大井上发射功率重新启动从钻机到地下工具的通信。 一个程序可以建立一组新的钻柱信号的传动参数，以建立钻机和地下工具之间的通讯。 该系统可以包括接收有源/非活动状态控制的电磁定位信号的漫游定位器。 响应于定位信号劣化，重新配置命令可以修改定位信号。 井下收发器和井下收发器可以自动修改井下信号的至少一个参数。 井上接收器可以对传送的信号应用补偿响应以补偿钻柱通道传递功能。
-
公开(公告)号：EP1583886A4
公开(公告)日：2008-02-27
申请号：EP03796563
申请日：2003-12-01
发明人： CHAU ALBERT W
IPC分类号： E21B20060101 , E21B7/04 , E21B17/00 , E21B17/02 , E21B17/20 , E21B23/00 , E21B47/022 , E21B47/024 , H01R13/533
CPC分类号： E21B17/028 , E21B7/046 , E21B17/003 , E21B47/02224 , E21B47/024 , H01R13/533
摘要： A system includes a drill string made up of a plurality of connectable pipe sections (28a & 28b). An assembly (100) is provided for use with each pipe section (28) including contact arrangement (108) for forming an isolated electrical connection between attached pipe sections (28) at each end of each pipe section. An electrically conductive arrangement (112) is located in the innermost passage of each pipe section (28) and is in electrical communication with the contact arrangement (108) to extend there between in a way which provides an electrically conductive path that is arranged against the inner wall of the innermost passage of each pipe section in cooperation with the contact arrangement (108) to form an overall electrically isolated conductive path through the drill string. The electrically conductive arrangement (108) resiliently biases the electrically conductive path against the inner wall, which path may take the form of a helix.
-
公开(公告)号：EP2678516A4
公开(公告)日：2017-11-22
申请号：EP12748918
申请日：2012-02-08
CPC分类号： E21B47/12 , E21B17/003 , E21B17/028
摘要： An inground housing is insertable in at least one joint of a drill string extending from a drill rig. The inground housing supports an electronics assembly for processing a data signal relating to the inground operation and a signal coupling arrangement for transferring the data signal between the electronics assembly and the drill rig by electromagnetically coupling the data signal between the signal coupling arrangement and the drill string such that the data signal is electrically conducted as an electrical data signal along at least a portion of the drill string that extends from the inground housing. In another feature, a current transformer is resiliently supported to isolate the current transformer from mechanical shock and vibration that is produced by an inground operation that is performed using the drill string. In another feature, a drill string repeater is described.
-
公开(公告)号：EP2689103A4
公开(公告)日：2015-11-25
申请号：EP12761392
申请日：2012-02-17
CPC分类号： E21B47/06 , E21B47/011 , Y10T29/49002
摘要： Generally, a sonde, associated components and methods are described which can be used in conjunction with an inground tool having an inground tool housing that defines an inground tool cavity such that the inground tool cavity is exposed to an ambient pressure environment which surrounds the inground tool during an inground operation. A sonde housing assembly includes an exterior configuration that is receivable within the inground tool cavity. The sonde housing assembly at least partially defines a sonde interior and is further configured for receiving the pressure sensor body of a pressure sensor in a pressure sealed engagement. A sonde electronics package is supported within the sonde interior and is at least configured to receive the pressure signal and transfer a corresponding pressure signal from the sonde.
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.011 秒)
