Oil pipe capable of continuous separation of gas and liquid

Abstract

The invention discloses an oil pipe capable of realizing continuous separation of gas and liquid. The oil pipe comprises a continuous composite material continuous pipe which is a multi-layer pipe body, the pipe body forms a hollow channel as a main channel, and the main channel is used as a rising channel of the liquid; the pipe wall of the composite material continuous pipe is provided with a plurality of pipe wall flow channels, and the pipe wall flow channels are used as rising channels of gas mediums; a material of an inside liner of the composite material continuous pipe is a high polymer material with the micropore structural characteristic; and in the process of flowing of crude oil in the main channel, the gas in the oil is separated from the oil under the function of the pressuredifference, passes the main channel and a wall, then enters the pipe wall flow channels of the composite material continuous pipe, and continuous separation and bypass of gas and liquid phases are realized. According to the oil pipe, by arranging the pipe wall flow channels on the pipe wall as the gas channels, the pressure difference is used for continuously separating the gas from the main channel to the pipe wall flow channels, and the continuous separation of the gas and the liquid in the process of oil extracting can be realized.

Description

technical field [0001] The invention relates to an oil pipeline, in particular to an oil pipeline capable of realizing continuous separation of gas and liquid. Background technique [0002] In the field of oil drilling and production, different oil field geological conditions lead to different production stages, and the composition of crude oil recovered from deep formations is also different. Gas and wax in crude oil is a relatively common phenomenon. Most oil wells suffer from severe wax deposition, and each oil field needs to spend a lot of manpower and financial resources to deal with the problem of wax deposition in oil wells. [0003] In addition, in cold regions or cold seasons, oil field surface pipelines need to take thermal insulation and antifreeze measures. The crude oil lifted to the ground is collected to the joint station through the gathering and transportation pipeline. Because of the temperature and pressure changes along the way, the associated gas in the...

AI Technical Summary

Problems solved by technology

Although the oil recovery system disclosed in the Chinese invention patent document CN105464629B has taken oil recovery technology a big step forward, it is still unable to realize the continuous separation of gas and liquid in the process of oil recovery due to the limitations of its pipe structure and material properties.

Images