Patent ID: 11873708
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 12:
13. A system comprising:
a first acoustic transducer array having a plurality of electroacoustic elements arranged circumferentially about an outer surface of a downhole tool;
a processor; and
a computer-readable medium having instructions stored thereon that are executable by the processor to cause the system to,
determine an eccentering vector of the downhole tool with respect to a casing in which the downhole tool is disposed, wherein the casing lines a wellbore;
determine, at a radial oriented plane of the first acoustic transducer array, a casing center based on the eccentering vector;
choose a first active aperture, wherein the first active aperture comprises a first set of the plurality of electroacoustic elements;
determine a first midpoint of the first active aperture based on the casing center;
determine a first relative standoff from the first midpoint;
determine first beam-forming parameters based on the first relative standoff, the first midpoint, and the casing center such that a first synthesized acoustic pulse to be transmitted from the first set the plurality of electroacoustic elements maintains a normal incidence relative to a reflecting inner surface of the casing, wherein the first set of the plurality of electroacoustic elements are located at any position circumferentially about the outer surface of the downhole tool and wherein the tool is eccentered within the wellbore;
excite the first set, based on the first beam-forming parameters, to output the first synthesized acoustic pulse;
receive, via the first set, a first acoustic reflection; and
determine an acoustic impedance of material behind the casing based on the first acoustic reflection.