公开(公告)号：US11982182B1

公开(公告)日：2024-05-14

申请号：US18523833

申请日：2023-11-29

申请人： SOUTHWEST PETROLEUM UNIVERSITY

发明人： Youwei He ,  Shuai Qiu ,  Jiazheng Qin ,  Yong Tang ,  Keji Long ,  Zhenhua Rui

IPC分类号： E21B49/00 ,  E21B49/08 ,  G01N15/08

CPC分类号： E21B49/087 ,  G01N15/0826

摘要： 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.