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Oil dispersant underwater injection effect assessment method

An oil dispersant, crude oil technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of inaccurate evaluation data and complex evaluation process, and achieve the effects of accurate evaluation, wide application range and convenient operation

Inactive Publication Date: 2016-10-26
CNOOC ENERGY TECH & SERVICES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no scientific simulation test method for evaluating the effect of dispersant underwater injection, and there are technical problems such as inaccurate evaluation data and complicated evaluation process.

Method used

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  • Oil dispersant underwater injection effect assessment method
  • Oil dispersant underwater injection effect assessment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for evaluating the underwater injection effect of a dispersant, comprising the following evaluation process:

[0038] Step 1: Use the gear pump to spray the experimental crude oil vertically upward from the bottom of the underwater oil spill simulation test tank into the water body; the injection flow rate of the experimental crude oil is 0.1m 3 / h.

[0039] Step 2: use the dispersant underwater injection unit to spray the dispersant in the vertical direction of the crude oil injection, and mix it with the crude oil; the amount of the dispersant accounts for 30% of the crude oil used in the experiment.

[0040] Step 3: Use a high-speed industrial camera with a microscope lens to collect the information of oil droplets dispersed by the dispersant in the water body, and save the picture of the oil drop information; the resolution of the high-speed industrial camera is 8 μm, and the frame rate is 17fps.

[0041] Step 4: Use the particle size analysis software to ...

Embodiment 2

[0046] A method for evaluating the underwater injection effect of a dispersant, selecting crude oil and a dispersant, and evaluating the underwater injection effect of a dispersant on crude oil, referring to figure 1 As shown, it is a flow chart of the method for evaluating the underwater injection effect of the dispersant in the embodiment of the present invention, including the following steps:

[0047] Step 1: Select 300g of experimental crude oil, and use the gear pump to spray the experimental crude oil vertically upward from the bottom of the underwater oil spill simulation test tank into the water body. The injection flow rate of the experimental crude oil is controlled to 0.192m 3 / h.

[0048] Step 2: Select a 240g dispersant sample, use the dispersant underwater injection unit to spray the dispersant in the vertical direction of the crude oil injection, and mix it with the crude oil.

[0049] Step 3: The oil droplets dispersed by the dispersant float up, and a high-s...

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Abstract

The invention relates to an oil dispersant underwater injection effect assessment method, and belongs to the technical field of marine environment simulation test. The oil dispersant underwater injection effect assessment method comprises the following steps: 1, experiment crude oil is injected to water from the bottom of an underwater overflow oil simulation test apparatus; 2, an oil dispersant is injected in a direction vertical to the injection direction of the crude oil, and is mixed with the crude oil; 3, information of oil drops dispersed by the oil dispersant in the water is acquired through adopting an industrial camera with a microlens; and 4, the change of the particle size of the oil drops is analyzed to evaluate the use effect of the oil dispersant. The method has the advantages of convenience in operation, fastness, high efficiency, accurate assessment of the underwater injection effect of the oil dispersant, direct and effective result, and wide application range.

Description

technical field [0001] The invention belongs to the technical field of marine environment simulation tests, in particular to a method for evaluating the underwater injection effect of a dispersant. Background technique [0002] At present, oil dispersants are an effective means of emergency response to marine oil spills. Existing oil dispersants are usually sprayed on the sea surface by tools such as ships and airplanes, and are used to deal with oil pollution on the sea surface. And for the underwater oil spill, in order to prevent the pollution caused by the oil spill rising to the sea surface, it is very necessary to directly dispose of the oil spill at the source of the underwater oil spill. However, due to the limitations of high pressure and low temperature in the underwater environment, people lack understanding of the effect of direct application of oil dispersants on the source of underwater oil spills, which seriously affects the emergency decision-making level an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N15/02
CPCG01N21/84G01N15/0227
Inventor 钱国栋安伟赵宇鹏李建伟于顺
Owner CNOOC ENERGY TECH & SERVICES
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