Electro-magnetic antenna for wireless communication and inter-well electro-magnetic characterization in hydrocarbon production wells
US10185049B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2011 |
| Grant date | Jan 22, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q9/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods, a system and antennas are provided for transmitting or receiving signals from a hydrocarbon production well. The well comprises a well bore formed in a formation, a production liner/tubing extending axially along the well bore, and an inductive coupling disposed around the liner/tubing. The liner tubing is electrically coupled to the formation at two axially separated locations and is electrically isolated from the formation between the locations. For transmitting, an alternating current signal to the inductive coupling to induce a current in the liner/tubing, the liner tubing forming a dipole antenna that generates an electromagnetic radiation signal propagating through the formation. For receiving, the dipole antenna is exposed to an electromagnetic radiation signal propagated through the formation which induces an alternating current signal in the tubing and the current signal is detected at the inductive coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.