Extendable probe and formation testing tool and method
US10316657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 17, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An extendable probe for a formation testing tool includes a piston housing having a first diameter portion and a second diameter portion thereof. A piston including a piston base and a piston conduit. A piston base seal disposed between the piston base and the first diameter portion of the piston housing. The piston base seal representing an area; a piston conduit seal disposed between the piston conduit and the second diameter portion, the piston conduit seal representing an area. A pin in operative communication with the piston housing and extending though the piston; a pin seal disposed between the pin and the piston base, the pin seal representing an area; and wherein the piston conduit seal. Piston base seal and pin seal each are configured to adhere to the equation: piston conduit seal area=piston base seal area−pin seal area. A method for querying a formation fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.