US 12,131,107 B2
Device and method for early monitoring of gas intrusion based on pressure wave propagation
Bangtang Yin, Dongying (CN); Yuhang Pang, Dongying (CN); Tianbao Ding, Dongying (CN); Baojiang Sun, Dongying (CN); Zhiyuan Wang, Dongying (CN); Shujie Liu, Dongying (CN); Zhiming Yin, Dongying (CN); and Meipeng Ren, Dongying (CN)
Assigned to CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Dongying (CN)
Filed by CHINA UNIVERSITY OF PETROLEUM (EAST CHINA), Dongying (CN)
Filed on Mar. 29, 2024, as Appl. No. 18/622,220.
Claims priority of application No. 202310523100.1 (CN), filed on May 10, 2023.
Prior Publication US 2024/0242011 A1, Jul. 18, 2024
Int. Cl. G01F 1/42 (2006.01); G01F 15/00 (2006.01); G06F 30/28 (2020.01)
CPC G06F 30/28 (2020.01) [G01F 1/42 (2013.01); G01F 15/005 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A device for early monitoring of gas intrusion based on pressure wave propagation, comprising:
a liquid storage tank;
a gas storage tank;
a simulated wellbore;
a computer;
a centrifugal pump;
a pressure-stabilizing water tank;
a mass flowmeter;
a screw air compressor;
a micro-orifice flowmeter;
a gas-liquid mixer;
a pressure-disturbing device;
a gas-liquid separator; and
an oscilloscope;
wherein a lower end of the liquid storage tank is connected to an inlet end of the pressure-stabilizing water tank through a first liquid-injection pipeline and the centrifugal pump;
an outlet end of the pressure-stabilizing water tank is connected to a liquid inlet of the gas-liquid mixer through a second liquid-injection pipeline and the mass flowmeter;
a first end of the gas storage tank is connected to the screw air compressor and a second end of the gas storage tank is connected to a gas inlet of the gas-liquid mixer through a gas-injection pipeline and the micro-orifice flowmeter;
the gas-liquid mixer is provided at an upper end of the simulated wellbore;
the pressure-disturbing device is connected to a lower side of the gas-liquid mixer;
a plurality of pressure sensors are provided at a middle of the simulated wellbore, and connected to the computer through a wire and the oscilloscope;
the gas-liquid separator is connected to a lower end of the simulated wellbore, and a liquid outlet of the gas-liquid separator is in pipeline connection with the liquid storage tank for recycling; and
the pressure-disturbing device comprises:
a pressure wave generator;
a pressure wave propagation unit; and
a disturbance tube;
wherein the pressure wave generator is provided with one or more pistons;
a lower outlet of each of the one or more pistons is connected to a collection chamber;
an outlet end of the collection chamber communicates with the pressure wave propagation unit;
an outer wall of the disturbance tube is provided with a plurality of openings;
the plurality of openings are each provided with a rubber membrane;
an outer end of the pressure wave propagation unit is connected to the disturbance tube; and
the rubber membrane is configured to collect and concentrate pressure waves for propagation.