Method and device for fault estimation of measurement and control device for rotary steerable drilling system
US12098629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2024 |
| Grant date | Sep 24, 2024 |
| Priority date | — |
| Expiry date | Jan 3, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided are a method and device for fault estimation of a measurement and control device for a rotary steerable drilling system. The method for fault estimation includes: S1, establishing a state model of the measurement and control device for the rotary steerable drilling system; S2, establishing a fault-free model filter and a fault model filter, and initializing the fault-free model filter and the fault model filter; S3, detecting whether the measurement and control device for the rotary steerable drilling system has a fault; and S4, reinitializing the fault model filter under the condition that a detection result is fault-free; reinitializing the fault-free model filter under the condition that the detection result is faulty; and estimating, by the fault model filter, the fault in real time, and obtaining, by the fault model filter, the estimation value {circumflex over (x)}wf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.