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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：US09739140B2
公开(公告)日：2017-08-22
申请号：US14845231
申请日：2015-09-03
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Gary Garrabrant , Timothy Bayliss , John E. Mercer
IPC: E21B47/12
CPC classification number: E21B47/122 , E21B7/046 , G01S11/06
Abstract: A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveground portable device. The portable device receives the symbol stream for aboveground recovery of the sensor signals. The transmitter can precisely place the symbol frequencies at least to avoid a noise environment, as well as to avoid powerline harmonics, and can utilize wave shaping for transmitted symbols at least to provide for transmission power control, spectral content control and wideband antenna matching. The receiver can measure the noise environment to identify the symbol frequencies used by the transmitter. The noise can be scanned at an incremental resolution across a wide frequency bandwidth for display or automatic symbol frequency selection.
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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：US20160265338A1
公开(公告)日：2016-09-15
申请号：US15158456
申请日：2016-05-18
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , Albert W. Chau , Rudolf Zeller , John E. Mercer
IPC: E21B44/02 , E21B7/04 , E21B47/022
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.
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公开(公告)号：US20150234074A1
公开(公告)日：2015-08-20
申请号：US14702694
申请日：2015-05-02
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Guenter W. Brune , Albert W. Chau , John E. Mercer
CPC classification number: G01D5/2006 , E21B47/02224 , G01V3/08 , G01V3/081 , G01V3/38
Abstract: A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically sensed using a receiver to produce a receiver output responsive to the field. A positional relationship between the receiver and the device is monitored using the output. In one aspect, changing the positional relationship, by moving the device nearer to a boring tool which supports the receiver, causes an increase in accuracy of depth determination. In another aspect, determination of an actual overhead position of the boring tool, and its application, are described. Use of a plurality of measurements over at least one-half revolution of each magnet is disclosed. Establishing a surface radial direction toward a boring tool and resolution of multi-valued parameters is described. Calibration techniques, as well as a three transmitter configuration are also described.
Abstract translation: 设备围绕轴旋转至少一个静态磁场，产生旋转的磁偶极场，并且可相对于地面移动。 使用接收器周期性地感测该场以响应于场产生接收机输出。 使用输出监视接收机和设备之间的位置关系。 一方面，通过使设备更靠近支撑接收器的钻孔工具来改变位置关系，导致深度确定的精度的提高。 在另一方面，描述了钻孔工具的实际开销位置的确定及其应用。 公开了在每个磁体的至少半圈上使用多个测量。 描述了朝向钻孔工具的表面径向方向和多值参数的分辨率。 还描述了校准技术以及三个发射机配置。
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Patent Agency Ranking
公开(公告)号：US11814950B2
公开(公告)日：2023-11-14
申请号：US17501438
申请日：2021-10-14
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Timothy Shaw , Timothy Bayliss , Craig Caswell
IPC: E21B47/024 , E21B7/04 , G01S19/49 , G01S19/13 , G01B3/12
CPC classification number: E21B47/024 , E21B7/046 , G01B3/12 , G01S19/13 , G01S19/49
Abstract: A planning tool plans movement of a boring tool for an underground drilling operation. The planning tool includes one or more wheels for rolling on a surface of the ground along a path responsive to movement by an operator to characterize the surface contour and to generate guidance for the boring tool to reach a target position. Planning can additionally be based on waypoints. The planning tool can be rolled unidirectionally or bidirectionally to characterize the surface contour. Bidirectional movement cancels accelerometer fixed bias. Path stitching is used to plan around obstacles. The planning tool can facilitate tracker placement. The planning tool can collect noise information for frequency selection purposes. A described technique maximizes linear drilling in an underground plan. Compensation and/or warnings are provided for unsteady, fast and slow movement of the planning tool while measuring the surface contour.
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公开(公告)号：US20220106872A1
公开(公告)日：2022-04-07
申请号：US17552226
申请日：2021-12-15
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Gary Garrabrant , Timothy Bayliss , John E. Mercer
Abstract: A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveground portable device. The portable device receives the symbol stream for aboveground recovery of the sensor signals. The transmitter can precisely place the symbol frequencies at least to avoid a noise environment, as well as to avoid powerline harmonics, and can utilize wave shaping for transmitted symbols at least to provide for transmission power control, spectral content control and wideband antenna matching. The receiver can measure the noise environment to identify the symbol frequencies used by the transmitter. The noise can be scanned at an incremental resolution across a wide frequency bandwidth for display or automatic symbol frequency selection.
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公开(公告)号：US20210025273A1
公开(公告)日：2021-01-28
申请号：US16520182
申请日：2019-07-23
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Timothy Shaw , Timothy Bayliss , Craig Caswell
IPC: E21B47/024 , E21B7/04 , G01B3/12 , G01S19/13 , G01S19/49
Abstract: A planning tool plans movement of a boring tool for an underground drilling operation. The planning tool includes one or more wheels for rolling on a surface of the ground along a path responsive to movement by an operator to characterize the surface contour and to generate guidance for the boring tool to reach a target position. Planning can additionally be based on waypoints. The planning tool can be rolled unidirectionally or bidirectionally to characterize the surface contour. Bidirectional movement cancels accelerometer fixed bias. Path stitching is used to plan around obstacles. The planning tool can facilitate tracker placement. The planning tool can collect noise information for frequency selection purposes. A described technique maximizes linear drilling in an underground plan. Compensation and/or warnings are provided for unsteady, fast and slow movement of the planning tool while measuring the surface contour.
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公开(公告)号：US10584573B2
公开(公告)日：2020-03-10
申请号：US16396748
申请日：2019-04-28
Applicant: Merlin Technology Inc.
Inventor： Guenter W. Brune , Albert W. Chau , Rudolf Zeller , John E. Mercer
IPC: E21B44/02 , E21B7/04 , 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：US10422664B2
公开(公告)日：2019-09-24
申请号：US15090507
申请日：2016-04-04
Applicant: Merlin Technology, Inc.
Inventor： Rudolf Zeller , Guenter W. Brune , Albert W. Chau , John E. Mercer
IPC: G01V3/08 , G01D5/20 , E21B47/022 , G01V3/38
Abstract: A device rotates at least one static magnetic field about an axis, producing a rotating magnetic dipole field, and is movable in relation to the surface of the ground. The field is periodically sensed using a receiver to produce a receiver output responsive to the field. A positional relationship between the receiver and the device is monitored using the output. In one aspect, changing the positional relationship, by moving the device nearer to a boring tool which supports the receiver, causes an increase in accuracy of depth determination. In another aspect, determination of an actual overhead position of the boring tool, and its application, are described. Use of a plurality of measurements over at least one-half revolution of each magnet is disclosed. Establishing a surface radial direction toward a boring tool and resolution of multi-valued parameters is described. Calibration techniques, as well as a three transmitter configuration are also described.
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