Compact logging while drilling look around and look ahead tool
US11326446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Oct 21, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/12
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A compact sub assembly and a method for forming a deep antenna. The assembly may comprise a look-ahead deep transmitter is attached at about one end of the compact sub assembly, and a shallow transmitter is attached to the compact sub assembly and positioned adjacent to the look-ahead deep transmitter. A method of forming a deep antenna may comprise positioning a look-ahead deep transmitter adjacent to a shallow transmitter at about one end of a compact sub assembly, and connecting the look-ahead deep transmitter to a switching module through one or more deep switches, connecting the shallow transmitter to the switching module through one or more shallow switches, and closing the one or more deep switches and the one or more shallow switches to activate the look-ahead deep transmitter and the shallow transmitter to form the deep antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.