Electrical wet connection between LWD/MWD tools with longitudinal and rotational degree of freedom and pressure protection eliminating vibration and shock effects
US11725462B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2022 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Oct 11, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/023
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Electrical wet connection (EWC) with multiple power and communication lines for connecting Logging While Drilling tools (LWD) and/or Measurement While Drilling tools (MWD) is described. The contacts between the modules may be made by, for example, using pressure bulkheads to ensure protection of the tools if the pressure protection is reduced or lost. The contacts may be locked together in a convenient manner to eliminate downhole vibrations and/or shocks. The may make the signal transmission quality approaching, as good as, or even better than wireline tools. The connection may be sealed from the well muds under high pressure and this protection may be enhanced such as by doubling or even tripling for extreme reliability in difficult environments. The designs described herein may advantageously allow for a large amount in collar lengths to be compensated and/or provide two degrees of freedom-rotational and/or may be longitudinal for ready connection on the well site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.