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公开(公告)号：US10513919B2
公开(公告)日：2019-12-24
申请号：US15006504
申请日：2016-01-26
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Loc Viet Lam
Abstract: 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.
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公开(公告)号：US10281347B2
公开(公告)日：2019-05-07
申请号：US15719239
申请日：2017-09-28
Applicant: Merlin Technology Inc.
Inventor： Albert W. Chau , Rudolf Zeller , John E. Mercer , Charles Yu Yat Tsang
Abstract: A tension monitoring apparatus is used for installing an underground utility by retraction that is applied to the utility. The tension monitoring apparatus includes a sensor for inground sensing of the tension force that is applied to the utility to produce a sensor signal. A processor monitors the tension force in a series of measurement intervals such that a plurality of tension force readings is generated for each of the measurement intervals. The processor stores a data set including a maximum tension force selected from the plurality of tension force readings for each one of the measurement intervals and copies the data set to a different location to create a copied data set after installation of the utility for subsequent selection and presentation of an overall maximum tension force.
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公开(公告)号：US10273796B2
公开(公告)日：2019-04-30
申请号：US15720865
申请日：2017-09-29
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , Albert W. Chau , Rudolf Zeller , John E. Mercer
IPC: G01V3/08 , E21B7/04 , E21B44/02 , G01V3/15 , E21B47/022
Abstract: A steering tool is movable by a drill string to form an underground bore along an intended path. A sensing arrangement of the steering tool detects its pitch and yaw orientations at a series of spaced apart positions along the bore, each position is characterized by a measured extension of the drill string. The steering tool further includes a receiver. At least one marker is positioned proximate to the intended path, for transmitting a rotating dipole field to expose a portion of the intended path to the field for reception by the receiver. The detected pitch orientation, the detected yaw orientation and the measured extension of the drill string are used in conjunction with magnetic information from the receiver to locate the steering tool. The steering tool may automatically use the magnetic information when it is available. A customized overall position determination accuracy can be provided along the intended path.
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公开(公告)号：US10072489B2
公开(公告)日：2018-09-11
申请号：US15231782
申请日：2016-08-09
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Scott Phillips , Benjamin J. Medeiros
IPC: E21B44/00 , H02J17/00 , H02J1/00 , H02J50/80 , E21B47/01 , E21B47/09 , E21B47/12 , E21B7/04 , E21B41/00 , E21B47/024
CPC classification number: E21B44/005 , E21B7/046 , E21B41/00 , E21B47/01 , E21B47/024 , E21B47/09 , E21B47/121 , E21B47/122 , H02J1/00 , H02J17/00 , H02J50/80
Abstract: A transmitter is powered by a regulated battery voltage and is installable in one of a plurality of different housings, each housing is characterized by a different design and each can form part of an inground tool for performing an inground operation in which a drill string extends from a drill rig to the inground tool. An antenna driver drives an antenna based on the regulated voltage to emanate an electromagnetic signal for remote reception. A controller limits power consumption from the regulated voltage so as not to exceed a power consumption threshold, irrespective of installation of the transmitter in any one of the housings when the transmitter would otherwise exhibit a different power consumption for each housing design. A corresponding method is described. Features relating to power consumption threshold modification based on temperature as well as mechanical shock and vibration are described.
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公开(公告)号：US20180038982A1
公开(公告)日：2018-02-08
申请号：US15785986
申请日：2017-10-17
Applicant: Merlin Technology Inc.
Inventor： John E. Mercer , Albert W. Chau
Abstract: Discriminating between a cable locating signal and a false cable locating signal is described. A reference signal, which contains a locating signal frequency impressed on it, is transmitted in a way which provides for detection of a phase shift between the locating signal and the false locating signal. Based on the phase shift, a receiver is used to distinguish the locating signal from the false locating signal.
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Patent Agency Ranking
公开(公告)号：US09798032B2
公开(公告)日：2017-10-24
申请号：US15350639
申请日：2016-11-14
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , Albert W. Chau , John E. Mercer
CPC classification number: G01V3/081 , E21B47/0905 , G01V3/15 , G01V3/30 , G01V3/38
Abstract: An arrangement and an associated method are described in which a boring tool is moved through the ground within a given region along a path in which region a cable is buried. The boring tool and the cable transmit a boring tool locating signal and a cable locating signal, respectively. Intensities of the boring tool locating signal and the cable locating signal are measured along with a pitch orientation of the boring tool. Using the measured intensities and established pitch orientation, a positional relationship is determined to relative scale including at least the boring tool and the cable in the region. The positional relationship is displayed to scale in one view. The positional relationship may be determined and displayed including the forward locate point in scaled relation to the boring tool and the cable. Cable depth determination techniques are described including a two-point ground depth determination method.
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公开(公告)号：US20170160418A1
公开(公告)日：2017-06-08
申请号：US15435776
申请日：2017-02-17
Applicant: Merlin Technology, Inc.
Inventor： Guenter W. Brune , John E. Mercer , Albert W. Chau , Rudolf Zeller
Abstract: Location determination is performed using a transmitter including an elongated generally planar loop antenna defining an elongation axis. The elongation axis is positioned along at least a portion of a path. A magnetic field is then generated which approximates a dipole field. Certain characteristics of the magnetic field are then determined at a receiving position radially displaced from the antenna elongation axis. Using the determined certain characteristics, at least one orientation parameter is established which characterizes a positional relationship between the receiving position and the antenna on the path. The magnetic field may be transmitted as a monotone single phase signal. The orientation parameter may be a radial offset and/or an angular orientation between the receiving position and the antenna on the path. The antenna of the transmitter may be inserted into a first borehole to transmit the magnetic field to a receiver inserted into a second borehole.
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公开(公告)号：US09617797B2
公开(公告)日：2017-04-11
申请号：US14193280
申请日：2014-02-28
Applicant: Merlin Technology Inc.
Inventor： Albert W. Chau , Benjamin John Medeiros
IPC: E21B7/04 , E21B17/00 , E21B47/022 , E21B7/30
CPC classification number: E21B17/028 , E21B7/046 , E21B7/30 , E21B17/003 , E21B17/042 , E21B47/02224
Abstract: A coupling adapter is insertable in at least one joint of a drill string as the drill string is extended from a drill rig. The coupling adapter includes an arrangement for receiving a data signal that is generated by an inground tool and for electromagnetically coupling the data signal onto at least a portion of the drill string that extends from the adapter to the drill rig such that at least some of the drill pipe sections cooperate as an electrical conductor for carrying the data signal to the drill rig. 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.
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公开(公告)号：US20170058663A1
公开(公告)日：2017-03-02
申请号：US15352363
申请日：2016-11-15
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , Albert W. Chau , John E. Mercer
CPC classification number: E21B47/0905 , E21B47/024 , G01C9/02 , G01V3/08 , G01V3/15 , G01V3/165 , G01V3/28
Abstract: A portable locator and method for establishing the location of the cable line in a region which includes at least one generally straight electrically conductive cable line extending across the region from which cable line a locating signal includes a first arrangement for measuring a local flux intensity of the locating signal at a first above ground point within the region with the portable locator in a particular orientation at the first above ground point. A second arrangement uses the local flux intensity to establish a cable line angular orientation which limits the possible directions to the cable line relative to the particular orientation of the portable locator at the above ground point. A third arrangement uses the measured local flux intensity to establish an actual direction of the cable line that is selected from the possible directions based on certain characteristics of the locating signal.
Abstract translation: 一种便携式定位器和方法，用于在包括至少一个大致直的导电电缆线的区域中建立电缆线的位置，该电缆线延伸穿过电缆线的区域，定位信号包括用于测量电缆线的局部通量强度的第一布置 将定位信号放置在该区域内的第一个地上点，便携式定位器在第一个地面上处于特定取向。 第二种方案使用局部通量强度来建立电缆线角度取向，其限制相对于便携式定位器在上述地面点的特定取向的电缆线的可能方向。 第三布置使用测量的局部通量强度来建立从基于定位信号的某些特性的可能方向中选择的电缆线的实际方向。
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公开(公告)号：US20160369618A1
公开(公告)日：2016-12-22
申请号：US15256535
申请日：2016-09-03
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Dmitry Feldman , Benjamin John Medeiros
CPC classification number: E21B47/06 , E21B47/011 , Y10T29/49002
Abstract: 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.
Abstract translation: 通常，描述了一种探头，相关的部件和方法，其可以与具有嵌入式工具壳体的嵌入式工具结合使用，所述嵌入式工具限定了内部工具腔，使得所述内部工具腔暴露于围绕所述环形工具的环境压力环境 在地下作业期间。 探头壳体组件包括可接收在内部工具腔内的外部构造。 探头壳体组件至少部分地限定了探测器内部，并且还被构造成用于以压力密封接合的方式接收压力传感器的压力传感器主体。 探头电子组件支撑在探头内部，并且至少被配置成接收压力信号并且传送来自探头的相应的压力信号。
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