Methods for using high-yielding non-Newtonian fluids for severe lost circulation prevention
US7499846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A system and method to model and analyze the mixing energies of high-yielding non-Newtonian fluids to prevent chemical lost circulation is disclosed. Laboratory tests are performed under varying conditions from which data on the mixing energies needed to optimize the use of high-yielding non-Newtonian fluids to prevent lost circulation is obtained. This data is then applied to a non-linear mathematical modeling system that is capable of scaling the data to give a dimensionless value. This value can be combined with historic information to predict optimal flow rates and mixtures to prevent chemical lost circulation. This data may be verified by means of simulation, lab testing, or application to a full-size well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.