Oil field sludge multicomponent testing method

Abstract

The invention relates to the oil field sludge component detection technology and in particular to an oil field sludge multicomponent testing method. The oil field sludge multicomponent testing method can measure the content of water, oil, residue, asphalt, saturates, aromatics, colloid and paraffin in oily sludge in oil field simultaneously, has low requirement for testing instruments, has low testing cost, and can be operated simply, conveniently and rapidly; in a testing process, a dewaxing reagent and a cold bath method are used to make the testing precision of paraffin be high and achieve low toxicity and high safety for testing personnel; and besides, according to the method, a slow crystallization process in which the cooling speed of paraffin crystals is controlled is used to prolong the growth time of the paraffin crystals, so that large paraffin crystal grains can be obtained, suction filtration loss is avoided and the measurement precision is improved.

Description

technical field [0001] The invention relates to a detection technology of oily sludge components, in particular to a multi-component testing method of oilfield sludge. Background technique [0002] my country's petrochemical industry produces a large amount of oily sludge every year, and the output is still increasing year by year. Oily sludge is the main pollutant in the "National Hazardous Waste List". If it is discharged directly without treatment, it will damage the surrounding environment and production. Different regions have different impacts, and it is also a waste of resources. Therefore, it is very important to accurately analyze the water content, oil content, slag content and the content of asphaltene, saturated, aromatic, paraffin and colloid in oily sludge, which is an effective method for oily sludge. Recycling and harmless research premise. [0003] At present, the Soxhlet extraction method is relatively mature for testing the water content, oil content, and...

AI Technical Summary

Problems solved by technology

Since the current Soxhlet extraction method is only used to test the water content, oil content, and slag content of oily sludge, it has not been applied to test asphaltene, colloid, paraffin, saturated content, aromatic content, etc. in oily sludge oil products. And because the physicochemical properties of sludge-containing samples from different sources are very different, the time required for reflux extraction of different samples by Soxhlet extraction method is very different. Mechanically determining the time not only affects the speed of the test, but also may lead to extraction Incomplete; although the "Petroleum Asphalt Four-Component Determination Method" can measure the content of the four components in petroleum asphalt, it cannot test the wax content; , requires professional equipment, and uses highly toxic reagents in the operation process, which has great potential safety hazards. Therefore, the water content, oil content, residue content of oily sludge and asphaltene, saturated components, aromatic components, The research on simple, safe and accurate testing methods for the content of paraffin and colloid is one of the research directions in this field

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