Dynamic time-gate cement evaluation tool
AssigneeHalliburton Energy Services, Inc.
InventorsLuis F. Quintero, Reinaldo Jose AnguloYznaga, Ehab Abdel Rahman Ali Najm Abdel Rahman Najm
Life of this patent
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Abstract
A method and system for determining cement bonding, or other materials attached to a pipe string. A well measurement system for determining cement bonding or other materials attached to a pipe string may comprise an acoustic logging tool, wherein the acoustic logging tool comprises at least one receiver and at least one transmitter. The well measurement system may further comprise an information handling system, wherein the information handling system is configured to broadcast a signal with the transmitter, record the reflected signal with a receiver; and determine an integrity of a cement using a Quintero Wellbore Index.
Claims25
A well measurement system for determining integrity of a material comprising:
- an acoustic logging tool, wherein the acoustic logging tool comprises:
- at least one transmitter to broadcast a pressure pulse;
- and
- at least one receiver to record the reflected pressure pulse;
- and
- an information handling system, wherein the information handling system is configured to determine the integrity of the material using a Quintero Wellbore Index based at least in part on the reflected pressure pulse, wherein the Quintero Wellbore Index is a series of at least two indices, wherein each index from the series of at least two indices comprises one or more ray paths with one or more arrival times through a zone of interest, wherein the zone of interest is separated by a pipe string or a casing for each index from the series of at least two indices.
A method for determining integrity of a material, comprising:
- disposing an acoustic logging tool in a wellbore, wherein the acoustic logging tool comprises a transmitter and a receiver;
- broadcasting a pressure pulse with the transmitter into a first material, wherein the pressure pulse reflects off an interface of the first material and a pipe string as a reflected pressure pulse;
- recording the reflected pressure pulse with a receiver;
- and
- determining the integrity of the material using a Quintero Wellbore Index based at least in part on the reflected pressure pulse, wherein the Quintero Wellbore Index is a series of at least two indices, wherein each index from the series of at least two indices comprises one or more ray paths with one or more arrival times through a zone of interest, wherein the zone of interest is separated by a pipe string or a casing for each index from the series of at least two indices.
A well measurement system for determining integrity of a material comprising:
- an acoustic logging tool, wherein the acoustic logging tool comprises:
- at least one transmitter to broadcast a pressure pulse;
- and
- at least one receiver to record the reflected pressure pulse at a sample rate of at least one sample per microsecond;
- and
- an information handling system, wherein the information handling system is configured to determine the integrity of the material using a Quintero Wellbore Index based at least in part on the reflected pressure pulse, wherein the Quintero Wellbore Index is a series of indices, wherein each index from the series of indices comprises one or more ray paths with one or more arrival times through a zone of interest, wherein a general relation of the Quintero Wellbore Index for the zone of interest is determined by,
- QWI
- =
- (
- Arrival
-
- time
-
- of
-
- appropriate
-
- ray
- -
- Arrival
-
- time
-
- of
-
- theoretical
-
- ray
-
- with
-
- fast
-
- cement
- Arrival
-
- time
-
- of
-
- theoretical
-
- ray
-
- if
-
- zone
-
- 100
-
- %
-
- filled
-
- with
-
- water
- -
- Arrival
-
- time
-
- of
-
- theoreticalray
-
- with
-
- fast
-
- cement
- )
- .
Dependencies are inferred from the claim text.