System and method for drilling using drilling fluids
US9010460B2 · kind B2 · utility
1Cited by
17References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Dec 14, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/113
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and a system for detecting or measuring influxes of formation water or brine into a drilling fluid being used to drill a borehole through an earth formation are described. The method and system comprising using an electrode based sensor system to determine changes in capacitance and/or conductance of the drilling fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.