IP Library Granted Patent US 12,638,026
Granted Patent B2
US 12,638,026 · App. 18/321,443 · Granted May 26, 2026

Adaptive repressurizer

Inventors: John David Broyles (Houston, TX); Jinhong Chen (Katy, TX); Stacey M. Althaus (Houston, TX); Jewel Duncan (Houston, TX)
Assignee: SAUDI ARABIAN OIL COMPANY
F15B1/24F15B1/033F04B39/0005F15B2201/31F15B2201/411F15B2201/4155F17C2227/0192F17C2250/043
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Quick Facts
Patent No.
US 12,638,026
App. No.
18/321,443
Granted
May 26, 2026
Kind
B2
Abstract

A method for recovering a source gas at a specific pressure uses an adaptive repressurizer system including a series of valves configured to control flow circuit connections within the adaptive repressurizer system. The method includes disposing a gas container containing the source gas within the system. The method includes connecting the gas container; connecting a hydro source; connecting a utility gas source; connecting a vacuum source; and disposing an accumulator within the adaptive repressurizer system. The accumulator is connected to the gas side and to the hydraulic side circuits. The method includes moving the piston by pressurizing the gas-side circuit with the utility gas. The method includes actuating the adaptive repressurizer system to change a first gas pressure of the source gas to a second gas pressure; applying the source gas at the second gas pressure to a laboratory application; and evacuating the gas-side circuit to the vacuum source.

Claims (74)

1 . A method for recovering a source gas at a specific pressure using an adaptive repressurizer system comprising a series of valves configured to control flow circuit connections within the adaptive repressurizer system, the method comprising:

disposing a gas container containing the source gas within the adaptive repressurizer system;

connecting the gas container to a gas-side circuit within the adaptive repressurizer system so as to allow a gas-flow connection with the gas-side circuit;

connecting a hydro source comprising a hydraulic substance to a hydraulic-side circuit within the adaptive repressurizer system so as to allow a hydraulic-flow connection with the hydraulic-side circuit;

connecting a utility gas source comprising a utility gas to the gas-side circuit so as to allow a gas-flow connection with the gas-side circuit;

connecting a vacuum source to the gas-side circuit at a vacuum port disposed on the gas-side circuit and configured to evacuate the gas-side circuit and to draw the source gas out to recover the source gas;

disposing an accumulator within the adaptive repressurizer system, wherein the accumulator comprises a piston, which is configured with a dry side of the piston for interaction with the gas-side circuit and a wet side of the piston for interaction with the hydraulic-side circuit within the adaptive repressurizer system, and wherein an accumulator gas side is connected to the gas-side circuit so as to allow a gas-flow connection with the gas-side circuit and an accumulator hydraulic side is connected to the hydraulic-side circuit;

moving the piston by pressurizing the gas-side circuit with the utility gas from the utility gas source applied to the dry side of the piston;

actuating the adaptive repressurizer system to change a first gas pressure of the source gas to a second gas pressure;

applying the source gas at the second gas pressure to a laboratory application; and

recovering the source gas by drawing the source gas out of the adaptive repressurizer system by evacuating the gas-side circuit through the vacuum port to the vacuum source.

2 . The method of claim 1 ,

wherein the adaptive repressurizer system further comprises an adaptive repressurizer control system (AR control system) comprising a computer processor configured to automate, upon receipt of an actuation signal sent from the AR control system to the adaptive repressurizer system, the changing of the gas pressure of the source gas.

3 . The method of claim 2 ,

wherein the adaptive repressurizer system further comprises a set of target parameters within the AR control system;

wherein the changing the gas pressure of the source gas further comprises:

monitoring, using the computer processor, a set of operational parameters of the adaptive repressurizer system;

collecting, using the computer processor, a set of data of the set of operational parameters;

comparing, using the computer processor, the set of data with the set of target parameters;

reporting, using the computer processor, a result of the comparing; and

controlling, using the computer processor, the adaptive repressurizer system in response to the comparing.

4 . The method of claim 3 , wherein the adaptive repressurizer system further comprises:

a monitoring subsystem;

wherein the monitoring subsystem comprises monitoring a source gas pressure and a hydraulic substance pressure.

5 . The method of claim 4 , wherein:

the actuating the adaptive repressurizer system further comprises integrating, using the computer processor, readiness states from the monitoring subsystem.

6 . The method of claim 4 , wherein the monitoring comprises:

comparing the source gas pressure, using the computer processor, against a source gas pressure range; and

comparing the hydraulic substance pressure, using the computer processor, against a hydraulic substance pressure range.

7 . The method of claim 1 , wherein the changing the gas pressure of the source gas comprises:

configuring the accumulator to move the piston hydraulically when or after the hydraulic-side circuit is pressurized to change the gas pressure of the source gas by changing a first gas volume at a first gas pressure to a second gas volume at a second gas pressure.

8 . The method of claim 7 , wherein:

the accumulator comprises a first accumulator and a second accumulator; and

the changing the gas pressure of the source gas comprises pressurizing the second accumulator with the second gas volume at the second gas pressure.

9 . The method of claim 1 , wherein:

the adaptive repressurizer system further comprises an enclosure comprising a support surface wherein the gas-side circuit, the hydraulic-side circuit, and the accumulator are mounted to the support surface;

wherein the disposing the gas container within the adaptive repressurizer system further comprises disposing the gas container within the enclosure; and

wherein the enclosure comprises a sealable enclosure thermally insulating the adaptive repressurizer system;

wherein the changing the gas pressure of the source gas further comprises maintaining a temperature of the adaptive repressurizer system within a temperature range.

10 . The method of claim 1 , wherein changing the gas pressure of the source gas further comprises:

disposing a hydraulic pump within the adaptive repressurizer system;

arranging the hydraulic pump within the hydraulic-side circuit to pressurize the hydraulic-side circuit; and

engaging the hydraulic pump.

11 . The method of claim 1 , wherein changing the gas pressure of the source gas further comprises:

evacuating the gas-side circuit prior to, when, or after opening the gas container to allow the source gas to flow into the gas-side circuit.

12 . The method of claim 11 , wherein actuating the adaptive repressurizer system further comprises:

filling the gas-side circuit prior to, when, or after evacuating the gas-side circuit.

13 . An adaptive repressurizer system for changing a gas pressure of a source gas, the adaptive repressurizer system comprising:

a series of valves configured to control flow circuit connections within the adaptive repressurizer system;

a gas container containing the source gas;

a gas-side circuit configured to contain the source gas at a first gas pressure and connected to the gas container through a gas-flow connection;

a hydraulic-side circuit connected through a hydraulic-flow connection to a hydro source comprising a hydraulic substance and configured to hold the hydraulic substance disposed in the hydraulic-side circuit at a hydraulic substance pressure,

wherein the hydraulic substance disposed in the hydraulic-side circuit and configured to be pressurized by a hydraulic pump to increase, hydraulically via a piston, the first gas pressure of the source gas to a second gas pressure by moving the piston from a first position to a second position thereby changing a first gas volume at the first gas pressure to a second gas volume at the second gas pressure when or after the hydraulic-side circuit is pressurized, and

wherein the hydraulic pump disposed within the adaptive repressurizer system and configured to pressurize the hydraulic-side circuit;

an enclosure for the adaptive repressurizer system comprising a support surface wherein the gas-side circuit, the hydraulic-side circuit, and an accumulator are mounted to the support surface,

wherein the gas container is disposed within the enclosure;

a utility gas from a utility gas source arranged in communication with a dry side of the piston and configured to move the piston from the second position to the first position when the utility gas is applied to the dry side of the piston;

the accumulator comprising:

an accumulator gas side connected to the gas-side circuit,

an accumulator hydraulic side hydraulically connected to the hydraulic-side circuit, and

the piston configured with the dry side of the piston and a wet side of the piston,

wherein the accumulator is configured to change, hydraulically via the piston, the first gas pressure of the source gas to the second gas pressure by changing the first gas volume at the first gas pressure to the second gas volume at the second gas pressure; and

an adaptive repressurizer control system (AR control system) comprising a computer processor configured to automate, upon receipt of an actuation signal sent from the AR control system to the adaptive repressurizer system, thus changing the gas pressure of the source gas,

wherein the source gas at the second gas pressure is applied to a laboratory application, and

wherein the source gas is drawn out of the adaptive repressurizer system.

14 . The adaptive repressurizer system of claim 13 , wherein:

the accumulator comprises a first accumulator and a second accumulator.

15 . The adaptive repressurizer system of claim 13 , further comprising:

a vacuum source connected to the gas-side circuit at a vacuum port disposed on the gas-side circuit and configured to evacuate the gas-side circuit and to draw the source gas out to recover the source gas.

16 . The adaptive repressurizer system of claim 13 , further comprising:

a monitoring subsystem configured to monitor the gas pressure of the source gas and the hydraulic substance pressure of the hydraulic substance.

17 . The adaptive repressurizer system of claim 13 , wherein:

the hydraulic substance comprises a composition consisting essentially of distilled water; and

the utility gas comprises a composition consisting essentially of compressed air.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2023
From: SAUDI ARAMCO UPSTREAM TECHNOLOGIES COMPANY
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 065268/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2023
From: ARAMCO SERVICES COMPANY
To: SAUDI ARAMCO UPSTREAM TECHNOLOGIES COMPANY
Reel/Frame 065255/0318 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 21, 2023
From: BROYLES, JOHN DAVID; CHEN, JINHONG; ALTHAUS, STACEY M.; DUNCAN, JEWEL
To: ARAMCO SERVICES COMPANY
Reel/Frame 064652/0243 →
Continuity (1)
Related Publication 20240392809A1 · Nov 28, 2024
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