Coalbed methane drainage wellhead gas-water separation device

Abstract

The gas-water separation device at the wellhead of the coalbed methane drainage well includes a box body. The bottom surface of the inner wall of the box body is fixedly connected to the lower end of the column, and the upper end of the column is fixedly connected to the bottom surface of the water tank. The water tank has a hemispherical structure, and the top surface of the water tank is open. The center line of the column is collinear with the center line of the box body, the outer periphery of the column is covered with a ring, and the inner ring of the ring is in contact with the outer periphery of the column. The present invention can form a stable support for the water tank through the column, the structure is stable, and the motor can simultaneously drive the striker, the fan blade and the floating plate to rotate, so as to achieve the purpose of crushing the water flow, eliminating air bubbles and making the gas separated in the box flow upward, and The rotating floating plate can stir the water in the box to generate eddy currents, and the contact area between the water and the air in the box is larger, and the floating plate is made into an arc-shaped structure to fit the water surface, which is more conducive to the separation of gas in the water.

Description

technical field [0001] The invention belongs to the technical field of coalbed methane exploitation, in particular to a wellhead gas-water separation device of a coalbed methane drainage well. Background technique [0002] In order to alleviate the energy crisis, reduce the environmental pollution caused by direct gas discharge, and reduce the danger of coal and gas outburst in coal mines, people continue to research and develop coalbed methane development technology and equipment. With the continuous maturity of technology, the scale of coalbed methane wells has increased sharply. Since the discharged water and gas share the same wellbore, the discharged water must be separated from gas and water during drainage to avoid waste of resources. As described in the publication number CN103352686A, there is a fast and efficient gas-water separation device at the wellhead of a coalbed methane drainage well, through which the coalbed methane contained in the water can be quickly se...

AI Technical Summary

Problems solved by technology

However, when the water flow falls from a high place, the water surface in the device will be stirred up, and the gas and water molecules will form bubbles due to the existence of surface tension, and these bubbles will all adhere to the water surface. Exhaust from the device, resulting in waste of gas resources, and the emitted methane will aggravate the greenhouse effect, which needs further improvement

Images