# US 2025/0146409 A1 · Correlated Wave-Particle Application For Downhole Measurements

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- Number: US 2025/0146409 A1
- Document ID: US20250146409A1
- Status: Published application
- Kind: A1
- Application number: 18/221,015
- Filed: 2023-07-12
- Published: 2025-05-08
- Earliest claimed: 2022-10-14
- Assignees: Halliburton Energy Services, Inc.
- Applicants: Halliburton Energy Services, Inc.
- Inventors: Christopher Michael Jones; Jeffrey James Crawford; Ahmed Fouda
- Web page: https://patentgrep.com/patent/US20250146409A1

## CPC

- E21B 47/135: using light waves, e.g. infrared or ultraviolet waves
- E21B 49/087: {Well testing, e.g. testing for reservoir productivity or formation parameters}
- G01V 9/00: Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- H04B 10/70: Photonic quantum communication
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- G01V: GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS (means for indicating the location of accidentally buried, e.g. snow-buried, persons A63B29/02)
- H04B: TRANSMISSION

## Abstract

A system and method for taking measurements in a formation. The system may include a quantum entangled photon source that entangles an idler particle and a probe particle, a transmitter disposed in a wellbore and connected to the quantum entangled photon source by a transmitter waveguide, a receiver disposed in the wellbore, and a carrier laser connected to the receiver by a carrier waveguide. The system may further comprise a detector connected to the carrier waveguide and an information handling system in communication with the quantum entangled photon source, the carrier laser, and the detector. The method may include broadcasting a probe particle from a transmitter into a formation, capturing the probe particle with at least one receiver after the probe particle has interacted with the formation, and measuring the probe particle during an interaction with the formation using an idler particle in a detector.

## Claims

### Claim 1

A system comprising:
a quantum entangled photon source that entangles an idler particle and a probe particle;
a transmitter disposed in a wellbore and connected to the quantum entangled photon source by a transmitter waveguide;
a receiver disposed in the wellbore;
a carrier laser connected to the receiver by a carrier waveguide;
a detector connected to the carrier waveguide; and
an information handling system in communication with the quantum entangled photon source, the carrier laser, and the detector.

### Claim 2 (depends on 1, 2)

The system of claim 1, further comprising an interface that connects the receiver to the carrier waveguide. 3 The system of claim 2, wherein the interface transfers a radio frequency of the probe particle to an optical medium on the carrier waveguide.

### Claim 4 (depends on 1)

The system of claim 1, further comprising a splitter disposed on the transmitter waveguide between the quantum entangled photon source and the transmitter.

### Claim 5 (depends on 4)

The system of claim 4, further comprising an idler waveguide that connects the splitter to the detector.

### Claim 6 (depends on 5)

The system of claim 5, wherein the splitter separates the idler particle and the probe particle.

### Claim 7 (depends on 1)

The system of claim 1, wherein the transmitter broadcasts the probe particle into a formation.

### Claim 8 (depends on 1)

The system of claim 1, wherein the receiver captures the probe particle from a formation.

### Claim 9 (depends on 1)

The system of claim 1, wherein the detector measures the idler particle at surface.

### Claim 10 (depends on 9)

The system of claim 9, wherein the idler particle is affected by the probe particle that the idler particle is entangled to.

### Claim 11

A method comprising:
broadcasting a probe particle from a transmitter into a formation;
capturing the probe particle with at least one receiver after the probe particle has interacted with the formation; and
measuring the probe particle during an interaction with the formation using an idler particle in a detector.

### Claim 12 (depends on 11)

The method of claim 11, further comprising entangling the probe particle and the idler particle in a quantum entangled photon source.

### Claim 13 (depends on 12)

The method of claim 12, further comprising splitting the probe particle and the idler particle at a splitter, wherein the splitter is connected to the quantum entangled photon source by a transmitter waveguide.

### Claim 14 (depends on 13)

The method of claim 13, further comprising directing the idler particle through an idler waveguide and to the detector connected to the idler waveguide.

### Claim 15 (depends on 13)

The method of claim 13, further comprising directing the probe particle through the transmitter waveguide to the transmitter.

### Claim 16 (depends on 13)

The method of claim 13, further comprising changing a radio-frequency of the probe particle to an optical medium at an interface.

### Claim 17 (depends on 16)

The method of claim 16, wherein the interface connects a carrier waveguide to the receiver.

### Claim 18 (depends on 17)

The method of claim 17, further comprising transmitting a carrier light from a carrier laser through a carrier waveguide to the interface.

### Claim 19 (depends on 11)

The method of claim 11, wherein the at least one receiver is connected to the detector by a carrier waveguide.

### Claim 20 (depends on 11)

The method of claim 11, further comprising recording measurements taken by the detector with an information handling system that is connected to the detector.