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US 2024/0167377 A1Published application
Apparatus and method for characterizing liner and annulus properties with a gamma-gamma tool
AssigneeSchlumberger Technology Corporation
InventorLaurent Mosse
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Abstract
Embodiments presented provide for an apparatus and method for characterizing linear and annulus properties using a gamma-gamma tool.
Claims18
A method of characterizing at least one downhole feature, comprising:
- using a gamma-gamma tool, performing at least one scan to characterize casing properties and an annulus density indicator;
- and
- correcting apparent densities from casing and annulus density effect.
A method, comprising:
- producing at least one pulse of energy from a downhole tool, the at least one pulse of energy directed into a casing and annulus of a wellbore;
- receiving the at least one pulse of energy at the downhole tool;
- characterizing casing properties and an annulus density indicator from the received pulse of energy;
- and
- correcting apparent densities from casing and annulus density effect.
2 more elements
An apparatus, comprising:
- a downhole tool configured to transmit and receive gamma radiation into a casing and surrounding annulus of a wellbore, the downhole tool having at least three detectors to receive the gamma radiation;
- and
- a computing apparatus configured to receive data from the downhole tool, wherein the computing apparatus is configured to perform a correction of data received based upon a combination of a first shallow measurement and a second deeper measurement.
Dependencies are inferred from the claim text.