Oil field sludge multicomponent testing method

A test method and technology for oilfield sludge, applied in the direction of removing a certain component and weighing, etc., can solve the problems of untestable wax content, great differences in physical and chemical properties, affecting the speed of testing, etc. The effect of avoiding suction filtration loss and improving precision

Active Publication Date: 2016-06-22
CHINA PETROLEUM & CHEM CORP +1
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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

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  • Oil field sludge multicomponent testing method
  • Oil field sludge multicomponent testing method
  • Oil field sludge multicomponent testing method

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[0042] Example

[0043] like figure 1 As shown, extracting 5 parts of sludge samples with a quality of 8 grams from different regions of a certain oil field carries out the test of each component according to the oilfield sludge multi-component test method of the present invention, specifically including the following process:

[0044] (1) Put each sample into five non-adhesive filter cartridges with constant weight, and mark them as samples No. 1, 2, 3, 4 and 5 respectively, and package them with a mass of m 筒 In the rubber-free filter cartridges, the quality of each filter cartridge is as described in Table 1, and then the corresponding glue-free filter cartridges were placed in the extraction devices numbered 1, 2, 3, 4, and 5 from sample No. 1 , and respectively use petroleum ether extractant with a boiling range of 90-95°C to conduct heating and reflux extraction at 90±3°C until the extract is clear, and then continue to reflux for 1h. Wherein the extraction device stru...

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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...

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Application Information

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IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 李汉周郭鹏王光明庄建全罗江涛滕镇远
Owner CHINA PETROLEUM & CHEM CORP
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