US 11,753,887 B2
Devices, systems, and methods for selectively engaging downhole tool for wellbore operations
Tom Watkins, Calgary (CA); Jeyhun Najafov, Calgary (CA); Ratish Suhas Kadam, Calgary (CA); and Henryk Kozlow, Calgary (CA)
Assigned to Advanced Upstream Ltd., Calgary (CA)
Filed on Jul. 27, 2021, as Appl. No. 17/386,422.
Application 17/386,422 is a division of application No. 17/163,067, filed on Jan. 29, 2021.
Claims priority of provisional application 62/968,074, filed on Jan. 30, 2020.
Prior Publication US 2021/0355815 A1, Nov. 18, 2021
Int. Cl. E21B 34/14 (2006.01); E21B 47/092 (2012.01); E21B 33/10 (2006.01); E21B 47/09 (2012.01)
CPC E21B 34/142 (2020.05) [E21B 33/10 (2013.01); E21B 47/09 (2013.01); E21B 47/092 (2020.05); E21B 2200/08 (2020.05)] 8 Claims
OG exemplary drawing
1. A method comprising:
deploying a device into a passageway of a tubing string; and
while the device is deployed within the passageway:
measuring, by a magnetometer in the device, one or more of: a z-axis magnetic field in a z-axis, an x-axis magnetic field in a x-axis, and a y-axis magnetic field in a y-axis, wherein the z-axis is parallel to a direction of travel of the device, and the x-axis and y-axis are orthogonal to the z-axis and to each other;
generating at least a z-axis signal based on the z-axis magnetic field; and
monitoring at least the z-axis signal to detect a change; and
analyzing the change to detect at least one feature in the tubing string,
the change is caused by a movement of a first magnet in the device relative to a second magnet in the device;
the change comprises a change in the z-axis signal; and
the analyzing comprises determining whether the change in the z-axis signal is greater than or equal to a predetermined threshold magnitude.