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公开(公告)号：US20140138156A1
公开(公告)日：2014-05-22
申请号：US14163374
申请日：2014-01-24
Applicant: Merlin Technology, Inc.
Inventor： Guenter W. Brune , Albert W. Chau , Rudolf Zeller , John E. Mercer
CPC classification number: E21B44/02 , E21B7/04 , E21B7/046 , E21B47/02216 , E21B47/02224 , G01V3/15
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.
Abstract translation: 转向工具可通过钻柱移动，以形成沿预定路径的地下孔。 转向工具的感测装置在沿着孔的一系列间隔位置处检测其俯仰和偏转方向，每个位置的特征在于测量的钻柱的延伸部。 转向工具还包括接收器。 至少一个标记位于预期路径附近，用于传送旋转偶极场以暴露到场的预期路径的一部分以供接收机接收。 结合来自接收器的磁信息来定位检测到的俯仰方向，检测到的偏航方向和测量的钻柱的延伸部分以定位转向工具。 转向工具可以自动使用磁信息。 可以沿着预期路径提供定制的总体位置确定精度。
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公开(公告)号：US12188346B2
公开(公告)日：2025-01-07
申请号：US18117419
申请日：2023-03-04
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , John E. Mercer , Albert W. Chau
IPC: E21B47/0232 , E21B7/04 , E21B44/00 , E21B47/024
Abstract: A boring tool that is moved by a drill string to form an underground bore. A transmitter transmits a time varying dipole field as a homing field from the boring tool. A pitch sensor detects a pitch orientation of the boring tool. A homing receiver is positionable at a target location for detecting the homing field to produce a set of flux measurements. A processing arrangement uses the pitch orientation and flux measurements with a determined length of the drill string to determine a vertical homing command for use in controlling depth in directing the boring tool to the target location such that the vertical homing command is generated with a particular accuracy at a given range between the transmitter and the homing receiver and which would otherwise be generated with the particular accuracy for a standard range, different from the particular range. An associated system and method are described.
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公开(公告)号：US20240301787A1
公开(公告)日：2024-09-12
申请号：US18649045
申请日：2024-04-29
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Dmitry Feldman , Benjamin John Medeiros
IPC: E21B47/06 , E21B47/017
CPC classification number: E21B47/06 , E21B47/017 , 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.
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公开(公告)号：US12012844B2
公开(公告)日：2024-06-18
申请号：US18120078
申请日：2023-03-10
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Kenneth J. Theimer
IPC: E21B47/017 , E21B17/00 , E21B47/01 , E21B47/013 , E21B47/024 , E21B7/04
CPC classification number: E21B47/01 , E21B17/003 , E21B47/013 , E21B47/017 , E21B47/024 , E21B7/046
Abstract: A housing defines a through passage along its length and is configured to support a group of electrical isolators surrounding the through passage to form an electrically isolating break in a drill string such that each isolator of the group of isolators is subject to no more than a compressive force responsive to extension and retraction of the drill string. The housing defines a housing cavity to receive an electronics package having a signal port and is configured for electrical connection of the signal port across the electrically isolating break. A housing lid can cooperate with a main housing body to define elongated slots for purposes of enhancing the emanation of a locating signal. A housing arrangement can support electrical connections from an electronics package to bridge an electrically isolating gap.
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公开(公告)号：US20240102344A1
公开(公告)日：2024-03-28
申请号：US18533189
申请日：2023-12-08
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , Scott Phillips , Benjamin J. Medeiros
IPC: E21B7/04 , E21B41/00 , E21B44/00 , E21B47/024 , E21B47/09 , E21B47/125 , E21B47/13 , H02J1/00 , H02J50/80
CPC classification number: E21B7/046 , E21B41/00 , E21B44/005 , E21B47/024 , E21B47/09 , E21B47/125 , E21B47/13 , H02J1/00 , H02J50/80 , E21B47/01
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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Patent Agency Ranking
公开(公告)号：US11802900B2
公开(公告)日：2023-10-31
申请号：US17728980
申请日：2022-04-26
Applicant: Merlin Technology Inc.
Inventor： Loc Viet Lam , Albert W. Chau
Abstract: A portable device is described for use with a system in which a transmitter signal is transmitted by a transmitter from within the ground during an operational procedure. The portable device is configured for measuring electromagnetic noise. An extension leg is removably attachable to the portable device and supports a measurement wheel at a distal end such that the electromagnetic noise is measured on a measurement path along which the measurement wheel is rolled for use in selecting a transmission frequency for the transmitter signal.
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公开(公告)号：US11598200B2
公开(公告)日：2023-03-07
申请号：US17749138
申请日：2022-05-20
Applicant: Merlin Technology Inc.
Inventor： Albert W. Chau , Dmitry Feldman , Benjamin John Medeiros
IPC: E21B47/01 , E21B47/06 , E21B47/017
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.
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98.发明申请公开(公告)号：US20220252654A1
公开(公告)日：2022-08-11
申请号：US17728980
申请日：2022-04-26
Applicant: Merlin Technology Inc.
Inventor： Loc Viet Lam , Albert W. Chau
Abstract: A portable device and associated method are described for use with a system in which a locating signal is transmitted from within the ground during an operational procedure. The locating signal includes a transmission frequency that is selectable from a group of discrete transmission frequencies in a frequency range and the region includes electromagnetic noise that can vary. The portable device includes a receiver having a bandwidth that includes the transmission frequency range and is operable for measuring the electromagnetic noise in the transmission frequency range to establish a frequency content of the electromagnetic noise for use in selecting one of the discrete transmission frequencies that is subsequently transmitted as the locating signal during the operational procedure. The locating signal can be transmitted from a boring tool, a pullback arrangement or an inground cable. A predicted maximum operational depth for a transmitter can be determined prior to the operational procedure.
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99.发明授权公开(公告)号：US11320474B2
公开(公告)日：2022-05-03
申请号：US17344895
申请日：2021-06-10
Applicant: Merlin Technology Inc.
Inventor： Loc Viet Lam , Albert W. Chau
Abstract: A portable device is described for use with a system in which a transmitter signal is transmitted by a transmitter from within the ground during an operational procedure. The transmitter signal includes a transmission frequency that is selectable as one of a group of discrete transmission frequencies and the region includes electromagnetic noise that varies. The portable device includes a receiver that measures noise continuously along a path, with the transmitter inactive, to generate one or more indications for each discrete frequency at each location and continuously update the one or more indications for use in selecting one of the discrete frequencies as a selected transmission frequency to avoid local interference.
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100.发明申请公开(公告)号：US20220099700A1
公开(公告)日：2022-03-31
申请号：US17546850
申请日：2021-12-09
Applicant: Merlin Technology, Inc.
Inventor： Albert W. Chau , John E. Mercer , Scott Phillips
Abstract: 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.
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