Application of treatment fluid in separating gas from gas/liquid/solid three-phase fluid

Abstract

The invention relates to the application for separating gas from three-phase fluid of gas, liquid and solid, aiming at the request of recycling the gas among the mixed phase of gas, liquid and solid with high efficiency and low cost, the invention provides variable treatment solution being applied for separating gas from three-phase fluid of gas, liquid and solid, the treatment solution can be water solution, oil, oil solution, oil in water emulsion or water in oil emulsion, after three phases of gas, liquid and solid passing through the treatment solution, gas can escape from the solution, while the liquid and solid can be kept in the solution and mixed solution can be obtained. With the application provided by the invention, the gas in the three phases of gas, liquid and solid can be effectively recycling so as to solve the problem that in present petroleum project construction such as the gas drilling the discharge and burning of great amount of impurity gas caused environmental pollution and the waste of gas resources, moreover, the application of the invention has the advantages of fast separating speed, high purity of gas, low rate of loss, simple treating process, low cost, high gas treating efficiency and the gas after being treated being able to be reused.

Description

technical field [0001] The present invention relates to the application of a treatment fluid in the separation of gas from a gas / liquid / solid three-phase fluid, more particularly, the present invention relates to the use of a treatment fluid in gas / liquid / solid three-phase coming out of a drilling wellbore in petroleum engineering Applications for separating gases from fluids. Background technique [0002] Nitrogen, natural gas, carbon dioxide and other gases are used as circulating fluids in gas drilling, well completion, gas lift production and other production stimulation measures. It is a new technology that has been widely valued at home and abroad in recent years. When used in gas drilling, it can carry cuttings, liquid, etc., increase the drilling speed, and help discover and protect oil and gas layers. However, the production cost of these gases is high. At present, in the construction of gas drilling, the gas cannot be recycled, but the gas is released or burned, w...

AI Technical Summary

Problems solved by technology

In gas drilling, under the cutting of the drill bit and the impact of high-speed gas flow, the formation minerals are highly dispersed, there are a large number of nano- and micron-sized solid particles, and the gas flow is very large. It is difficult to remove the tiny solids and tiny liquid droplets by the above separation methods. Difficulty in gas purification, low processing efficiency and high cost, which is not conducive to the reuse of gas

If the gas is released or burned, it will not only cause environmental pollution, but also lead to waste of gas resources and increase production and operation costs

[0004] At present, in the method of separating gas / liquid / solid three-phase fluid, there is no use of treatment liquid to quickly separate the liquid and solid phases in the gas / liquid / solid three-phase fluid with a large gas flow through adsorption, flocculation, and sedimentation. Methods