Downhole testing tool for subterranean formation testing using a fluid sampling probe assembly
US12196079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2023 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Apr 24, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Formation testing apparatus including a downhole testing tool for subterranean formation testing within a borehole of a well, the tool including a downhole sampling device having: a test tool body having an outer surface; and assembly extendable out of and retractable into an opening in the outer surface. The assembly includes a seal pad at a first end of the formation probe sampling assembly, the seal pad operable to contact a formation wall of the borehole when the seal pad is extended past the outer surface to thereby define a seal space between the borehole and the seal pad. The seal pad includes at the first end includes a metal plate with a trough therein, the trough defining a closed track in the metal plate, the trough having dimensions to hold a portion of an inflatable elastomeric ring shaped to fit in the trough. Methods of assembly and testing are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.