Continuous condensing recovery device for liquid oil of oil field gas

Abstract

The invention discloses a continuous condensing recovery device for liquid oil of oil field gas. The device comprises a gas inlet pipe, main and auxiliary condensing heat exchangers as well as oil discharge pipes, wherein a gas circuit switching valve is arranged on the gas inlet pipe, the gas inlet pipe is communicated with upper ends of oil field gas pipelines arranged in the main and auxiliary condensing heat exchangers, lower ends of the oil field gas pipelines are communicated with the oil discharge pipes, water discharge pipes and gas discharge pipes respectively, heat-exchange liquid pipelines contacted with the oil field gas pipelines are arranged in the main and auxiliary condensing heat exchangers and provided with inlet / outlet pipes, the inlet / outlet pipes are communicated with refrigerant circulating systems and high-temperature condensing agent circulating systems respectively through switching valves, and gas-liquid separators are arranged on the gas discharge pipes. According to the continuous condensing recovery device for the liquid oil of the oil field gas, one of the main and auxiliary condensing heat exchangers performs condensing recovery, the other one performs defrosting, the main and auxiliary condensing heat exchangers are alternately switched for use, and continuous condensing recovery of the liquid oil is realized.

Description

technical field [0001] The invention relates to a condensation recovery device, in particular to a continuous condensation recovery device for oilfield gas and liquid oil. Background technique [0002] The oil field gas is the natural gas produced during oil extraction, which includes water vapor, oil vapor and a part of non-condensable gas. The oil vapor can be recovered and utilized through condensation. When the traditional condensing equipment condenses the oil field gas, due to the There is water vapor inside, and during the condensation process, ice cubes will be formed to block the oilfield gas channels, and the condensation recovery operation cannot be carried out continuously. Contents of the invention [0003] The object of the present invention is to provide a continuous condensing and recovering device for oilfield gas and liquid oil, which is used to continuously condense oilfield gas and recover liquid oil. [0004] To achieve the above object, the present i...

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Problems solved by technology

[0002] The oil field gas is the natural gas produced during oil extraction, which includes water vapor, oil vapor and a part of non-condensable gas. The oil vapor can be recovered and utilized through condensation. When the traditional condensing equipment condenses the oil field gas, due to the There is water vapor inside, and ice cubes will be formed during the condensation process to block the gas channels in the oil field, and the condensation recovery operation cannot be carried out continuously

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