A method for removing wax deposits on oil pipelines and an associated gas recovery compressor

Abstract

The invention relates to the field of machinery, in particular to a method for removing wax deposits on oil pipelines and a compressor for recovering associated gas. The method includes the following steps: under the condition of good sealing performance, the associated gas is pumped up by the following equipment and pumped into the pipeline for transporting petroleum liquid, including a gas storage chamber, and there is a blowing piston inside the gas storage chamber, and the gas storage chamber There are two one-way valves distributed on the top, which are the one-way valve at the air inlet (14) and the one-way valve at the exhaust port (15); the associated gas is compressed by the up and down movement of the blowing piston and injected into the oil pipeline; The moving gas and liquid generate eddy currents together, so the relevant components of the fluid are not easy to separate out, the gas will be continuously broken and burst during transportation, and the oil-gas mixture in the pipe flows in the form of eddy currents, thereby preventing the formation of dirt and reducing wax deposition and scaling ; At the same time, the impact force of the air bubbles makes the adhered wax scale fall off.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a method for removing wax deposits on oil pipelines and a compressor for recovering associated gas. Background technique [0002] The main solid substances in crude oil are alkanes containing 18-64 carbon atoms, that is, paraffin, and sulfate or carbon salts of barium, strontium, magnesium, and calcium. Due to the influence of factors such as changes in transportation temperature and long transportation time, solid or slushy dirt substances gradually accumulate on the inner wall of the transportation pipeline, causing the crude oil transportation volume to gradually decrease or block, resulting in energy waste, environmental pollution, affecting operation, and increasing operation. cost etc. [0003] There are two main reasons for fouling inside oil pipelines. [0004] (1) Paraffin, the main solid in crude oil, has a melting point of 40-60°C. During the long-distance transportation of ...

AI Technical Summary

Problems solved by technology

[0013] (2), there must be professional technical personnel to operate

[0014] (3) The cost of a few oil pipelines in scattered remote areas is high

[0020] (1) It is necessary to stop the conveying equipment, which affects production and is time-consuming and laborious

[0021] (2) Pickling accelerates the corrosion of the pipeline wall and reduces the service life of pipeline equipment

[0022] (3) The cleaned waste liquid pollutes the environment and causes acid deposition in the formation

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