IP Library › Granted Patent US 12,203,362
Granted Patent B2
US 12,203,362 · App. 18/452,304 · Granted Jan 21, 2025

Injecting multiple tracer tag fluids into a wellbore

Inventors: Martin E. Poitzsch (Northumberland, NH); Karim Ismail (Boston, MA); Gawain Thomas (Shirley, MA)
Assignee: Saudi Arabian Oil Company
E21B47/11E21B49/005
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Quick Facts
Patent No.
US 12,203,362
App. No.
18/452,304
Granted
Jan 21, 2025
Kind
B2
Abstract

A method and a system for injecting multiple tracer tag fluids into the wellbore are described. The method includes determining multiple injection concentrations of multiple respective tracer tag fluids, determining an injection sequence of the tracer tag fluids into a wellbore, and injecting the tracer tag fluids into the wellbore according to the injection concentrations and the injection sequence. The tracer tag fluids include synthesized polymeric nanoparticles suspended in a solution. The synthesized polymeric nanoparticles are configured bind to a wellbore cutting. The synthesized polymeric nanoparticles are configured to undergo a thermal de-polymerization at a respective temperature and generate a unique mass spectra. The injection sequence includes an injection duration determined by a depth interval of the wellbore to be tagged by the synthesized polymeric nanoparticles and an injection pause to prevent mixing the multiple tracer tag fluids in the wellbore.

Claims (38)

1. A wellbore cuttings tagging system comprising:

a plurality of tracer tag fluid tanks configured to store each of a respective plurality of tracer tag fluids at a plurality of respective known concentrations, wherein each respective plurality of tracer tag fluids comprises a respective plurality of synthesized polymeric nanoparticles suspended in a respective solution, the respective plurality of synthesized polymeric nanoparticles configured bind to a respective wellbore cutting when the plurality of tracer tag fluids have been injected into a wellbore containing the respective wellbore cutting, wherein the respective plurality of synthesized polymeric nanoparticles is configured to undergo a thermal de-polymerization at a respective temperature, the respective temperature increased by mud logging analysis equipment, and wherein thermal de-polymerization of the respective plurality of synthesized polymeric nanoparticles generates a respective mass spectra detectable by the mud logging analysis equipment;

a buffer fluid tank configured to store a buffer fluid;

an air tank configured to store pressurized air;

a first plurality of valves positioned in a respective first plurality of conduits fluidically connecting the air tank to the respective tracer tag fluid tanks and the buffer fluid tank;

a second plurality of valves positioned in a respective second plurality of conduits fluidically configured to connect the plurality of tracer tag fluid tanks to the wellbore and the buffer fluid tank, the second plurality of valves configured to allow flow from the plurality of tracer tag fluid tanks and the buffer fluid tank into the wellbore and stop flow from the wellbore into the plurality of tracer tag fluid tanks and the buffer fluid tank; and

a controller configured to perform operations comprising:

determining a plurality of injection concentrations of the respective plurality of tracer tag fluids;

determining an injection sequence of the respective plurality of tracer tag fluids into a wellbore, the injection sequence comprising:

an injection duration, wherein the injection duration is determined by a depth interval of the wellbore to be tagged by the respective plurality of synthesized polymeric nanoparticles; and

an injection pause, wherein the injection pause prevents mixing the plurality of tracer tag fluids in the wellbore; and

based on the determined injection concentrations and injection durations, injecting the respective plurality of tracer tag fluids into the wellbore, according to the plurality of injection concentrations and the injection sequence.

2. The wellbore cuttings tagging system of claim 1 , wherein injecting the respective plurality of tracer tag fluids into the wellbore, according to the plurality of injection concentrations and the injection sequence comprises actuating the first plurality of valves and the second plurality of valves.

3. The wellbore cuttings tagging system of claim 2 , wherein the first plurality of valves are electrically actuated solenoid air valves.

4. The wellbore cuttings tagging system of claim 3 , wherein actuating the respective plurality of valves further comprises:

opening a respective plurality of electrically actuated solenoid air valves positioned in a respective plurality of conduits, the respective plurality of conduits fluidically connecting an air tank to the plurality of tracer tag fluid tanks, wherein the air tank is configured to pressurize the respective plurality of tracer tag fluid tanks when the respective plurality of electrically actuated solenoid air valves are opened, wherein each of the plurality of electrically actuated solenoid air valves are configured to control a pressure of the air flowing from the air tank to the respective tracer tag fluid tank;

responsive to pressurizing the respective plurality of tracer tag fluid tanks, opening a respective plurality of check valves positioned in a respective second plurality of conduits fluidically connecting the respective plurality of tracer tag fluid tanks to the wellbore;

maintaining the respective plurality of check valves open for the injection duration to inject the respective plurality of tracer tag fluids into the wellbore;

shutting the respective plurality of electrically actuated solenoid air valves, wherein the respective plurality of tracer tag fluid tanks depressurize when the electrically actuated solenoid air valves shut;

simultaneously while shutting the respective plurality of electrical actuated solenoid air valves, opening an electrically actuated solenoid air valve positioned in a buffer fluid conduit, the buffer fluid conduit fluidically connecting a buffer fluid tank to the wellbore, wherein the air tank is configured to pressurize the buffer fluid tank when the electrically actuated solenoid air valve in the buffer fluid conduit is opened;

responsive to depressurizing the respective plurality of tracer tag fluid tanks and simultaneously opening the electrically actuated solenoid air valve; shutting the respective plurality of check valves open to inject the respective plurality of tracer tag fluids into the wellbore; and

responsive to shutting the respective plurality of check valves, stopping injection of the plurality of tracer tag fluids into the wellbore.

5. The wellbore cuttings tagging system of claim 3 , further comprising a throttle valve positioned in an injection manifold fluidically coupling the plurality of tracer tag fluid tanks to the wellbore, wherein the throttle valve is configured to control a flow of the plurality of tracer tag fluids from the respective tracer tag fluid tanks through the injection manifold into the wellbore.

6. The wellbore cuttings tagging system of claim 5 , actuating the respective plurality of valves further comprises:

opening a respective plurality of electrically actuated solenoid air valves positioned in a respective plurality of conduits, the respective plurality of conduits fluidically connecting an air tank to the respective plurality of tracer tag fluid tanks, wherein the air tank is configured to pressurize the respective plurality of tracer tag fluid tanks when the respective plurality of electrically actuated solenoid air valves are opened;

responsive to pressurizing the respective plurality of tracer tag fluid tanks, opening a respective plurality of check valves positioned in a respective second plurality of conduits fluidically connecting the respective plurality of tracer tag fluid tanks to the wellbore;

maintaining the respective plurality of check valves open for the injection duration to inject the respective plurality of tracer tag fluids into the wellbore;

throttling, by the throttle valve positioned in the injection manifold fluidically coupling the tracer tag fluid tanks to the wellbore, the flow of the respective plurality of tracer tag fluids from the respective tracer tag fluid tanks through the injection manifold into the wellbore;

shutting the respective plurality of electrically actuated solenoid air valves, wherein the respective plurality of tracer tag fluid tanks depressurize when the electrically actuated solenoid air valves shut;

simultaneously while shutting the respective plurality of electrical actuated solenoid air valves, opening an electrically actuated solenoid air valve positioned in a buffer fluid conduit, the buffer fluid conduit fluidically connecting a buffer fluid tank to the wellbore, wherein the air tank is configured to pressurize the buffer fluid tank when the electrically actuated solenoid air valve in the buffer fluid conduit is opened;

responsive to depressurizing the respective plurality of tracer tag fluid tanks and simultaneously opening electrically actuated solenoid air valve; shutting the respective plurality of check valves open to inject the respective plurality of tracer tag fluids into the wellbore; and

responsive to shutting the respective plurality of check valves, stopping injection of the plurality of tracer tag fluids into the wellbore.

7. The wellbore cuttings tagging system of claim 5 , further comprising a mud system fluidly coupled to the injection manifold, the mud system comprising a water-based mud and a hydrophilic co-monomer, the mud system configured to mix the hydrophilic co-monomer with the respective plurality of tracer tag fluids to make the respective plurality of tracer tag fluids compatible with the water-based mud.

8. The wellbore cuttings tagging system of claim 5 , further comprising a mud system fluidly coupled to the injection manifold, the mud system comprising a water-based mud and an ionic surfactant, the mud system configured to mix the ionic surfactant with the respective plurality of tracer tag fluids to make the respective plurality of tracer tag fluids compatible with the water-based mud.

9. The wellbore cuttings tagging system of claim 5 , further comprising a mud system fluidly coupled to the injection manifold, the mud system comprising an oil-based mud, the mud system configured to reverse emulsify the respective plurality of tracer tag fluids to make the respective plurality of tracer tag fluids compatible with the oil-based mud.

10. The wellbore cuttings tagging system of claim 1 , wherein the mud logging analysis equipment is configured to receive and analyze the respective plurality of synthesized polymeric nanoparticles from the wellbore.

11. The wellbore cuttings tagging system of claim 10 , wherein the mud logging analysis equipment comprises a gas chromatography—mass spectrometry instrument including a pyrolyzer configured to analyze the synthesized polymeric nanoparticles bound to the respective plurality of wellbore cuttings.

12. The wellbore cuttings tagging system of claim 1 , wherein the controller is a non-transitory computer-readable storage medium storing instructions executable by one or more computer processors, the instructions when executed by the one or more computer processors cause the one or more computer processors to determine a plurality of injection concentrations of a respective plurality of tracer tag fluid, determine an injection sequence of the respective plurality of tracer tag fluids into a wellbore, and inject the respective plurality of tracer tag fluids into the wellbore according to the plurality of injection concentrations and the injection sequence.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2023
From: POITZSCH, MARTIN E.; ISMAIL, KARIM; THOMAS, GAWAIN
To: ARAMCO SERVICES COMPANY
Reel/Frame 064679/0065 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2023
From: ARAMCO SERVICES COMPANY
To: SAUDI ARAMCO UPSTREAM TECHNOLOGY COMPANY
Reel/Frame 064679/0131 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 23, 2023
From: SAUDI ARAMCO UPSTREAM TECHNOLOGY COMPANY
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 064679/0182 →
Continuity (3)
Division 17466192 · Sep 3, 2021
Provisional Application 63074287 · Sep 3, 2020
Related Publication 20230392496A1 · Dec 7, 2023
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