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1.
公开(公告)号:US10760408B2
公开(公告)日:2020-09-01
申请号:US15807689
申请日:2017-11-09
IPC分类号: E21B47/09 , E21B33/12 , E21B29/00 , E21B47/12 , E21B10/32 , E21B17/10 , E21B47/18 , E21B23/01
摘要: Methods and systems to initiate downhole operations in a borehole include deploying a first structure at least partially in the borehole, moving a second structure at least partially along the first structure, wherein at least one of the first structure and the second structure is equipped with a sensor and the other of the first and second structure is equipped with a marker detectable by the sensor, detecting a critical event that is related to an interaction of the sensor and the marker, measuring a time-since-critical event, determining a time delay based on the time-since-critical event, transmitting, with a telemetry system, data from the earth's subsurface to the earth's surface indicating that the critical event has been detected, and initiating a downhole operation by using the determined time delay.
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公开(公告)号:US20230024053A1
公开(公告)日:2023-01-26
申请号:US17849199
申请日:2022-06-24
IPC分类号: E21B47/09
摘要: A system for determining an order of electronic components in a downhole string includes a plurality of electronic components connected in series by a conductor and forming a series of electronic components, the plurality of electronic components including a master electronic component. For each electronic component in the series of electronic components, the controller is configured to detect a power direction, where the power direction is an uphole power direction when power from the power supply is received at an uphole side of the electronic component, and is a downhole power direction when power is received at a downhole side of the electronic component. The controller is configured to send a message through the conductor including an indicator indicating the power direction, and the master electronic component is configured to receive the message and determine an order of electronic components in the series of electronic components based on the indicator.
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3.
公开(公告)号:US20190136685A1
公开(公告)日:2019-05-09
申请号:US15807689
申请日:2017-11-09
IPC分类号: E21B47/09
CPC分类号: E21B47/0905 , E21B10/32 , E21B17/1014 , E21B23/01 , E21B29/005 , E21B33/12 , E21B47/09 , E21B47/122 , E21B47/18
摘要: Methods and systems to initiate downhole operations in a borehole include deploying a first structure at least partially in the borehole, moving a second structure at least partially along the first structure, wherein at least one of the first structure and the second structure is equipped with a sensor and the other of the first and second structure is equipped with a marker detectable by the sensor, detecting a critical event that is related to an interaction of the sensor and the marker, measuring a time-since-critical event, determining a time delay based on the time-since-critical event, transmitting, with a telemetry system, data from the earth's subsurface to the earth's surface indicating that the critical event has been detected, and initiating a downhole operation by using the determined time delay.
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