Patent number: 11982182
Abstract: Methods and systems for testing retrograde condensation damage in a near well zone of a condensate gas reservoir with a high condensate content are provided. The device comprises a long rock core holder, a first two-way valve, a second two-way valve, a first single-way valve, a second single-way valve, a third single-way valve, a fourth single-way valve, a first three-way valve, a second three-way valve, a third three-way valve, a confining pressure pump, a confining pressure gauge, a vacuum pump, a high-pressure high-precision displacement pump, a first intermediate container, an outlet pressure gauge, a displacement pump, a back pressure valve, a gas meter, a second intermediate container, an inlet pressure gauge, a test tube, a constant temperature oven, a gas flowmeter, a gas chromatograph, a six-way valve, a sample preparation device, and a thermostatic chamber.
Type:
Grant
Filed:
November 29, 2023
Date of Patent:
May 14, 2024
Assignee:
SOUTHWEST PETROLEUM UNIVERSITY
Inventors:
Youwei He, Shuai Qiu, Jiazheng Qin, Yong Tang, Keji Long, Zhenhua Rui