Patent ID: 11939860
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 31:
32. A downhole tool system, comprising:
an untethered downhole tool that comprises a housing and a sensor package, mounted in the housing, the housing comprising a downhole end and an uphole end; and
means for orienting the untethered downhole tool with respect to a radial alignment angle and one or more vertical alignment angles in response to one or more forces acting on the untethered downhole tool as the untethered downhole tool runs in a wellbore in a direction downhole of a terranean surface, the means for orienting the untethered downhole tool mounted within or attached to the housing, the means for orienting the untethered downhole tool comprising:
a first mass having a first density positioned at or near the downhole end and configured to generate a gravitational force on the housing in a downhole direction,
a second mass having a second density less than the first density positioned at or near the uphole end and configured to generate a buoyant force on the housing in an uphole direction,
at least one magnet positioned within, or attached to, a third location of the body; and
a microcontroller that:
detects an immobilization of the downhole tool based on outputs of the one or more sensors, and
reduces, in response to the detection of the immobilization, a magnetization of the at least one magnet to reduce a pull force towards a casing.