Oil-gas mixed conveying energy-saving method and system

Abstract

The invention discloses an oil-gas mixed conveying energy-saving method and system.The method comprises the steps that firstly, reversing internal pressurization replacement is conducted, specifically, a booster pump is arranged, and an inlet and an outlet of the booster pump communicate with a first circulation tank and a second circulation tank through two pipelines correspondingly; each pipeline is provided with at least one electric valve; the booster pump, the pipeline and the electrically operated valve are used as new composition units of the reversing mechanism; step 2, circulation tank coordination and pressurization control: setting a detection unit for respectively detecting the internal pressure and liquid level of the circulation tank I and the circulation tank II; a control system is arranged, is electrically connected with each valve of the mixed transportation device, the booster pump and the detection unit, and is configured to be used for triggering and outputting a booster pump stop control instruction according to the liquid level feedback information; and a booster pump starting instruction is triggered and output according to the pressure feedback information. The method has the effect of reducing energy consumption and cost in the oil-gas mixed transportation process.

Description

technical field [0001] The present application relates to the technical field of oil and gas mixed transportation, and in particular, to an energy-saving method and system for oil and gas mixed transportation. Background technique [0002] As a new type of oil and gas development and storage and transportation technology, the oil and gas mixed transportation process is popularized because of its non-separation of oil and gas, mixed closed and cold transportation, which greatly reduces the volatilization of oil and gas, has high economic benefits, and can reduce pollution. [0003] Patent Publication No. CN214306522U discloses a multiphase flow conveying device, which includes a first tank body; a second tank body; The liquid in the first tank and the second tank reciprocates, so that the first tank and the second tank alternately form a vacuum suction cavity and / or a compressed discharge cavity, so as to realize the continuous mixing and conveying of liquid, gas or gas-liqui...

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Problems solved by technology

[0004] The above technical solution is a mixed transportation device developed by our company, which can be used for mixed transportation of oil and gas. However, the inventor believes that in the process of oil and gas transportation, no matter whether it is mixed or not, in order to improve the transportation efficiency and meet the specified production requirements, it is necessary to do oil and gas. Supercharging, but the above-mentioned mixed transportation device has no supercharging effect, and a post-installation and pre-supercharging system need to be installed separately, and the cost and energy consumption increase. Therefore, this application proposes a new technical solution

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