Casing wear estimation
AssigneeLandmark Graphics Corporation
InventorsRobello Samuel, (no first name) Aniket
Life of this patent
Estimating the term…
Abstract
Casing wear estimation. At least some of the illustrative embodiments are methods including: calculating a value indicative of static casing wear of the drilling operation, the static casing wear caused by interaction of a drill string against an inside diameter of a casing; calculating a value indicative of impact casing wear of the drilling operation, the impact casing wear caused by interaction of the drill string against the inside diameter of a casing; and combining the value indicative of static casing wear and the value indicative of impact casing wear to determine the value indicative of aggregate casing wear.
Claims23
A method of determining a value indicative of aggregate casing wear in a drilling operation, the determining comprising:
- calculating a value indicative of static casing wear of the drilling operation, the static casing wear caused by interaction of a drill string against an inside diameter of a casing;
- calculating a value indicative of impact casing wear of the drilling operation, the impact casing wear caused by interaction of the drill string against the inside diameter of the casing;
- and
- combining the value indicative of static casing wear and the value indicative of impact casing wear to determine the value indicative of aggregate casing wear.
8-10. (canceled)
A system comprising:
- a processor;
- a memory coupled to the processor;
- the memory storing a program that, when executed by the processor, causes the processor to:
- calculate a value indicative of static casing wear for an interval of casing of a drilling operation, the static casing wear based on interaction of a drill string against an inside diameter of the interval of casing;
- calculate a value indicative of impact casing wear for the interval of casing of the drilling operation, the impact casing wear based on interaction of the drill string against the inside diameter of the interval of casing;
- and
- combine the value indicative of static casing wear and the value indicative of impact casing wear to determine a value indicative of aggregate casing wear for the interval of casing.
18-21. (canceled)
A non-transitory computer-readable medium storing a program that, when executed by a processor, causes the processor to
- calculate a value indicative of static casing wear of a drilling operation, the static casing wear based on interaction of a drill string against an inside diameter of a casing;
- calculate a value indicative of impact casing wear of the drilling operation, the impact casing wear based on interaction of the drill string against the inside diameter of the casing;
- and
- combine the value indicative of static casing wear and the value indicative of impact casing wear to determine a value indicative of aggregate casing wear.
28-31. (canceled)
Dependencies are inferred from the claim text.