Systems and methods for wireless transmission of power in deep subsurface monitoring

Patent metadata

Field	Value
Publication number	US-12473799-B2
Application number	US-202017764656-A
Country	US
Kind code	B2
Filing date	Nov 20, 2020
Priority date	Nov 21, 2019
Publication date	Nov 18, 2025
Grant date	Nov 18, 2025

Abstract

A system for wireless transmission of power in deep subsurface monitoring includes a casing, an oscillating current source configured to energize the casing, and a wireless telemetry module disposed on the casing. The wireless telemetry module includes a shell, a toroidal antenna disposed within the shell and configured to collect electrical energy from the energized casing, a telemetry transceiver control unit disposed within the shell, a battery pack disposed within the shell, a downhole signal acquisition unit disposed within the shell, and a sensor interface disposed within the shell. The battery pack is configured to store the collected electrical energy. The telemetry transceiver control unit is configured to generate a binary code to drive the toroidal antenna.

First claim

What is claimed is:

1 . A system for wireless transmission of power in deep subsurface monitoring, the system comprising:
a casing including a conductive material; an oscillating current source configured to energize the casing; and at least one wireless telemetry module disposed on the casing, the wireless telemetry module including:
a shell;
a toroidal antenna disposed within the shell, the toroidal antenna configured to collect electrical energy from an energized casing, wherein the toroidal antenna includes a winding of loops of conductive wire around a ring of material with a high value of magnetic permeability, wherein the material includes mu-metal;
a battery pack disposed within the shell, configured to store the collected electrical energy;
a CO 2 sensor configured to generate a signal indicative of a CO 2 concentration; and
an amplifier configured to process the signal from the CO 2 sensor; and
a voltmeter, including a first terminal and a second terminal, wherein the first terminal is connected to the casing and the second terminal is connected to the toroidal antenna, wherein the at least one wireless telemetry module is located in a CO 2 reservoir.

2 . The system of claim 1 , wherein the at least one wireless telemetry module is located in a subsurface.

3 . The system of claim 1 , wherein the battery pack includes supercapacitors.

4 . The system of claim 1 , wherein the wireless telemetry module further includes a telemetry transceiver control module configured to generate a binary code to drive the antenna.

5 . The system of claim 1 , further comprising at least one of a temperature sensor or a pressure sensor.

6 . The system of claim 5 , wherein the wireless telemetry module further includes a downhole signal acquisition assembly disposed within the shell,
wherein the downhole signal acquisition assembly is configured to acquire a signal from at least one of the temperature sensor, the pressure sensor, or the CO 2 sensor.

7 . The system of claim 6 , wherein the downhole signal acquisition unit configured to collect at least one of downhole temperature, pressure, or CO 2 concentration.

8 . A method for wireless transmission of power, the method comprising:
energizing a casing; obtaining, by a toroidal antenna of at least one wireless telemetry module disposed on the casing, an electrical energy from an energized casing, wherein the toroidal antenna includes a winding of loops of conductive wire around a ring of material with a high value of magnetic permeability, wherein the material includes mu-metal; determining whether there is an electrical charge on the antenna; charging a battery pack using the obtained electrical energy, based on the determined electrical charge; generating a signal by a CO 2 sensor indicative of a CO 2 concentration; and detecting the signal using a voltmeter, the voltmeter including a first terminal and a second terminal, wherein the first terminal is connected to the casing and the second terminal is connected to the toroidal antenna, wherein the at least one wireless telemetry module is located in a CO 2 reservoir.

9 . The method of claim 8 , wherein the at least one wireless telemetry module includes at least one of a temperature sensor or a pressure sensor.

10 . The method of claim 9 , further comprising collecting at least one of downhole temperature, pressure, or CO 2 concentration based on at least one of the temperature sensor, the pressure sensor, or the CO 2 sensor.

11 . The method of claim 8 , further comprising:
determining if the battery pack is fully charged; and wirelessly transmitting a signal indicating that the battery pack is fully charged based on the determination.

12 . The method of claim 8 , wherein the energizing is based on an oscillating current source.

13 . The method of claim 8 , wherein the at least one wireless telemetry module is located in a subsurface.

14 . The method of claim 8 , wherein the battery pack includes supercapacitors.

15 . The method of claim 8 , further comprising generating a binary code to drive the antenna.

16 . A system for wireless transmission of power in deep subsurface monitoring, the system comprising:
a casing including a conductive material; an oscillating current source configured to energize the casing; and a wireless telemetry module located in a CO 2 reservoir, the wireless telemetry module including:
a toroidal antenna, wherein the toroidal antenna includes a winding of loops of conductive wire around a ring of material with a high value of magnetic permeability, wherein the material includes mu-metal;
a battery pack;
a CO 2 sensor configured to generate a signal indicative of a CO 2 concentration;
an amplifier configured to process the signal from the CO 2 sensor;
a processor; and
a memory, including instructions stored thereon, which when executed by the processor cause the system to:
energize the casing;
obtain, by the antenna, an electrical energy from an energized casing;
determine whether there is an electrical charge on the antenna; and
based on the determination, charge the battery pack using the obtained electrical energy; and

a voltmeter, including a first terminal and a second terminal, wherein the first terminal is connected to the casing and the second terminal is connected to the toroidal antenna.

Assignees

• Univ Houston System

Inventors

• Chen Jiefu
• Shan Xiaonan
• Pan miao
• Wei Yong

Classifications

• G01V3/28

  using induction coils · CPC title

• E21B41/0064

  Carbon dioxide sequestration (storing fluids in porous layers B65G5/005) · CPC title

• E21B47/13

  by electromagnetic energy, e.g. radio frequency · CPC title

• H02J50/005

  Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices · CPC title

• H02J50/27

  characterised by the type of receiving antennas, e.g. rectennas · CPC title