Treatment agent for curing oilfield oily sludge and treatment method for converting oilfield oil sludge or sand into organic mud or sand

Abstract

The invention relates to a treatment agent for curing oilfield oily sludge and a treatment method for converting the oilfield oil sludge or sand into organic mud or sand. The treatment agent for curing the oilfield oily sludge comprises the following raw material compositions: phosphate, humate, sulphate and fly ash. The treatment method for converting the oilfield oil sludge or sand into the organic mud or sand is implemented by the following steps: firstly, fully mixing the treatment agent for curing the oilfield oily sludge and the oilfield oily sludge in a volume ratio of between 0.01:1 and 1:1; secondly, overturning the mixture after stacking for 20 to 100 days; and flattening the mixture for one month after stacking for 20 to 100 days to obtain the sludge which is well treated and can be used for planting vegetation. The treatment method solves the problem of discharging solid waste of the oilfield oily sludge, and achieves the aim of protecting environment; and the treated oilfield oily sludge can be used for planting the vegetation so as to realize the efficiency of changing waste into valuable, and has good economic, social and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of treating oilfield oily sludge or sand into organic mud or sand, and relates to an oilfield oily sludge aging treatment agent and a treatment method for oilfield sludge or sand into organic mud or sand. Background technique [0002] With the development of my country's oilfields, the adoption of enhanced oil recovery methods in the late stage of oilfield exploitation has made the content of mud and sand in the produced fluid higher and higher, and a large amount of oily mud and sand is produced in the process of crude oil dehydration treatment in the combined station. [0003] At the same time, in the process of oily sewage treatment in oil fields, because the sewage contains fine solid particles, it forms a stable emulsification system with the organic agents for tertiary oil recovery and the crude oil in it, which makes the treatment of sewage difficult and requires the addition of a large amount of Coag...

AI Technical Summary

Problems solved by technology

However, the oily mud and sand treated by the extraction method cannot meet the requirements of recultivation. Long-term stacking will still cause waste of land resources, and large-scale stacking will still change the physical and chemical properties of the soil at the stacked site and damage the ecology of the surface. surroundings

[0007] Biological treatment uses specific oil-degrading bacteria to degrade dirty oil, but the biological method is significantly affected by environmental conditions, and specific microorganisms only degrade specific pollutants, and broad-spectrum oil-degrading bacteria have not been found