System and method for integrated wellbore stress, stability and strengthening analyses
US9803475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2014 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/003
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Systems and methods for an integrated wellbore stress, stability and strengthening analysis are disclosed. An integrated geomechanical tool can be used to analyze and evaluate stress along the length of the wellbore to identify a safe drilling mud weight window and help identify troublesome zones in the wellbore. Fracture length may then be predicted in the identified troublesome zones by using a stress tensor calculated during the stress analysis. The calculated fracture length may be used to perform a strengthening analysis. After performing strengthening analysis, mud loss may be predicted based on predicted fracture size calculated during the stress, stability and strengthening analyzes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.