Environment-friendly flowback fluid treatment device

Abstract

The invention belongs to the technical field of energy exploitation equipment, and relates to an environment-friendly flowback fluid treatment device which comprises a mounting frame, a filtering mechanism and a rotary driving mechanism which are in transmission connection are mounted on the mounting frame, a tank frame is mounted on the mounting frame, a filtrate tank is mounted on the tank frame, and the filtering mechanism comprises a mounting sleeve and a bearing table which are integrally formed. An isolation frame is mounted in the mounting sleeve, a first filtering assembly and a second filtering assembly are mounted on the two sides of the isolation frame in the mounting sleeve correspondingly, the first filtering assembly comprises a filtering net and a storage barrel which are integrally formed, and fixing plates are arranged on the first filtering assembly and the second filtering assembly correspondingly. A limiting piece corresponding to the fixing plate is slidably mounted on the isolation frame, a semicircular sealing plate is arranged at the bottom end of the filtrate tank, and the bottom end of the semicircular sealing plate is flush with the top end of the storage barrel and the top end of the isolation frame, so that the problems that in the prior art, halting is needed for waiting when the filter screen is replaced, and meanwhile flowback liquid overflows easily are solved.

Description

technical field [0001] The invention belongs to the technical field of energy mining equipment, and in particular relates to an environment-friendly flowback liquid treatment device. Background technique [0002] Although shale gas is a clean energy source, its extraction process has greater environmental risks than conventional oil and gas extraction. When hydraulic fracturing technology is used to exploit shale gas, about 15% to 75% of the fracturing fluid will flow back with the shale gas. After gas-liquid separation, the flowback fluid is temporarily stored in the waste liquid pool at the well site. [0003] About 99.5 percent of these frac flowback fluids are water and proppant sand, with the remainder being chemicals. Contains a large amount of chemical additives such as thickeners or gelling agents, bactericides, scale inhibitors, lubricants, drag reducers, and surfactants, as well as a large amount of waste acids and inorganic salts. These additives contain a variet...

AI Technical Summary

Problems solved by technology

[0005] Based on the problems mentioned in the above-mentioned background technology, the present invention provides an environmentally friendly flowback liquid treatment device, which is used to solve the problem that the current flowback liquid treatment device needs to stop injecting flowback liquid when replacing the filter screen, while waiting for the flowback It is very inconvenient to replace the filter screen only after the liquid is no longer filtered out; at the same time, if the filter screen is seriously blocked and the drained liquid is no longer filtered out, there may be more backflow liquid in the filtrate tank. When the rack is installed, the flowback liquid in the filtrate tank will flow out directly, causing very inconvenient handling

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