Estimating wear for BHA components using borehole hardness
US11579329B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Jun 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/616
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Estimating wear on bottom hole assembly (BHA) components utilizes a rock hardness index using analysis of drill cutting. Estimating the amount of wear on borehole assembly components comprises measuring the rock properties in drilled cuttings from a borehole. A hardness value is assigned to each mineral present in the drilled cuttings. A hardness index is calculated for a drilled borehole interval. A wear resistance factor is assigned to each BHA component of the BHA. The wear resistance factor depends on the wear resistance of each BHA component. A wear value for each BHA component is calculated based on the hardness index for the drilled borehole interval, the wear resistance of the BHA component, and drilling parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.