High temperature drilling with lower temperature rated tools
US9605507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2012 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of maintaining a desired temperature at a location in a well can include adjusting fluid circulation parameters, thereby reducing a difference between an actual temperature at the location and the desired temperature. A well system can include at least one sensor, an output of the sensor being used for determining a temperature at a location in a well, and a hydraulics model which determines a desired change in fluid circulation through the well, in response to the temperature at the location being different from a desired temperature at the location. Another method of maintaining a desired temperature at a location in a well can include adjusting a density, solids content and/or flow rate of a fluid circulated through the well, thereby urging a temperature at the location toward the desired temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.