Carbon dioxide mixed-phase flushing efficiency and remaining oil distribution evaluation method and isolated plant

• Main Authors: WANG XUANKUI, YANG CHANGHUA, NIU BAOLUN, ZHU DEZHI, ZHANG JUNJIN, LYU XINHUA, JIANG XUEMING, ZHOU XUN
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a carbon dioxide mixed-phase flushing efficiency and remaining oil distribution evaluation method and an isolated plant, and belongs to the technical field of oil-gas field developing experiment. The device is composed of an injection-production simulation system and a data collecting and processing system, wherein the injection-production simulation system is composed of an injection device, a production device, a supercharging device, a closed container which simulates oil deposit and a sample which is arranged inside the closed container and simulates oil deposit core; the data collecting and processing system comprises a light source below a nonopaque passageway of the closed container which simulates the oil deposit and a photographic device above the nonopaque passageway of the closed container which simulates the oil deposit, and the photographic device is connected to a data processing device. The device can be used for studying oil-displacement mechanism of different developme