Resistivity tools with collocated antennas
AssigneeBaker Hughes Incorporated
InventorsJack Signorelli, Tsili Wang
Life of this patent
Estimating the term…
Abstract
The disclosure provides a resistivity tool for use in a wellbore, wherein at least two antennas are located at the same or substantially the same location of the tool. Each antenna may be configured to operate as a transmitter or receiver.
Claims23
An apparatus for use in a wellbore, comprising:
- a longitudinal tool member;
- a first antenna having a first orientation and a second antenna having a second orientation, wherein the first antenna and second antenna are placed at substantially a common location of the tool member.
The apparatus of claim 11 further comprising a processor that is configured to process electromagnetic radiation signals received by at least one of the first and second antennas from an earth formation and to provide an estimate a property of interest.
An apparatus for estimating a property of interest downhole, comprising:
- a downhole assembly that carries a resistivity tool, wherein the resistivity tool includes;
- at least two antennas collocated on a tool body, wherein each of the antennas is configured to operate as one of a transmitter and receiver;
- and
- a circuit associated with each antenna to operate its associated antenna as one of the transmitter and receiver.
A method of estimating a property of interest using a downhole tool;
- comprising:
- transmitting electromagnetic radiation signals into an earth formation;
- and
- receiving electromagnetic radiation signals from the formation responsive to the transmitted electromagnetic radiation signals;
- wherein
- one of transmitting and receiving the electromagnetic signals is carried by one of a first and second antennas collocated on the downhole tool.
Dependencies are inferred from the claim text.