Oil and gas well fracturing flowback fluid treating method, oil and gas well fracturing flowback fluid treating apparatus and skid-mounted box

Abstract

The invention provides an oil and gas well fracturing flowback fluid treating method, an oil and gas well fracturing flowback fluid treating apparatus and a skid-mounted box. The apparatus comprises awater inlet module, a coagulation module, an oxidation module, a back flushing module and a water outlet module, wherein the water inlet module injects a fracturing flowback fluid into the coagulation module, the coagulation module performs coagulation treatment on the fracturing flowback fluid through a first reactant, and injects the liquid obtained after filtering into the oxidation module, the oxidation module performs oxidation treatment on the liquid obtained after the coagulation treatment through a second reactant, the back flushing module injects one part of the liquid after the treatment with the oxidation module into the coagulation module, and the water outlet module discharges the other part of the liquid after the treatment with the oxidation module out of the apparatus. With the method, the apparatus and the skid-mounted box of the present invention, the oil and gas well fracturing flowback fluid treating efficiency is improved.

Description

technical field [0001] The invention relates to oil and gas field technology, in particular to a treatment method, device and skid-mounted box for oil and gas well fracturing flowback fluid. Background technique [0002] Oil and gas fields in my country often use fracturing as an important technical means for oil and gas well exploration and development. However, the waste fluid left after the fracturing operation contains a large amount of particulate matter, petroleum and various other additives. If the fracturing flowback fluid is directly discharged outside, it will pollute the surrounding environment, especially crops and surface water systems. Therefore, targeted treatment must be carried out before normal reuse, discharge or reinjection. [0003] In the prior art, most oil and gas wells are scattered and far away from residential and industrial gathering areas. In order to save costs during fracturing operations and reduce long-distance transportation of fracturing f...

AI Technical Summary

Problems solved by technology

[0004] Using the existing technology, due to the disadvantages of high cost, poor mobility, and easy corrosion of pipelines in the long-distance transportation of fracturing flowback fluid, the treatment effect on the suspended solids in the fracturing flowback fluid of oil and gas wells is limited and the treatment process is difficult. Complicated, making oil and gas well fracturing flowback fluid treatment less efficient

Images