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A kind of preparation method of viscosity reducer for super heavy oil pipeline transportation

A viscosity reducer and ultra-heavy oil technology, which is applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., can solve problems such as unsatisfactory viscosity reduction effects and failure to meet transportation requirements, so as to reduce transportation costs and improve Economic benefits, the effect of reducing energy consumption

Inactive Publication Date: 2019-02-05
克拉玛依中科恒信科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem mainly solved by the present invention is: aiming at the problem that the viscosity reduction effect of the traditional heavy oil viscosity reducer is not ideal after being used in the pipeline transportation of super heavy oil, and the problem that the transportation requirement cannot be met, a kind of internal mold obtained by screening and culturing is provided. Enzyme is an active ingredient, adding tea saponin, etc., and mixing it with degraded and modified waste engine oil to prepare a method of viscosity reducer for super-heavy oil pipeline transportation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Weigh 200g lard, 100g butter, and 20g sucrose in turn, pour it into an iron pan, heat it until it is completely melted, stir and mix with a wooden stick for 3 minutes, pass the molten material in the iron pan through a 60 mesh sieve and pour it into a beaker to make it natural Cool and solidify, then place the beaker in a dark place at a temperature of 20°C and a relative humidity of 75%, and let it stand until it becomes moldy; take 20mL crude oil, 5g peptone, 30g beef extract, 15g agar, and 1000mL deionized. The crude oil culture medium was prepared by mixing water uniformly, and then 3 loops of molds in the above beaker were inoculated into the crude oil culture medium with an inoculating loop, and then the crude oil culture medium was transferred to a constant temperature and humidity incubator at a temperature of 25°C and a relative humidity Under the condition of 80%, culture for 3 days; when the culture is over, rinse the surface of the crude oil medium with 300mL ...

example 2

[0023] Weigh 240g lard, 120g butter, 25g sucrose in turn, pour it into an iron pan, heat it until it is completely melted, stir and mix with a wooden stick for 4 minutes, pass the molten material in the iron pan through a 70-mesh sieve and pour it into a beaker to make it natural Cool and solidify, then place the beaker in a dark place at a temperature of 22°C and a relative humidity of 80%. Let it stand until it becomes moldy; take 25mL crude oil, 6g peptone, 35g beef extract, 18g agar, and 1100mL deionized. The crude oil culture medium was prepared by mixing water uniformly, and then 4 loops of molds in the above beaker were inoculated into the crude oil culture medium with an inoculating loop, and then the crude oil culture medium was transferred to a constant temperature and humidity incubator at a temperature of 28°C and relative humidity Under the condition of 82%, culture for 4 days; when the culture is over, rinse the surface of the crude medium with 350mL deionized wate...

example 3

[0026] Weigh 300g lard, 150g butter, 30g sucrose in turn, pour it into an iron pan, heat it until it is completely melted, and stir and mix with a wooden stick for 5 minutes, pass the molten material in the iron pan through an 80 mesh sieve and pour it into a beaker to make it natural Cool and solidify, then place the beaker in a dark place at a temperature of 25°C and a relative humidity of 85%, and let it stand until it becomes moldy. Take 30mL crude oil, 7g peptone, 40g beef extract, 20g agar, and 1200mL deionized. The crude oil culture medium was prepared by mixing the water uniformly, and then using an inoculating loop to take 5 loops of molds from the above beaker, and inoculate them into the crude oil culture medium, and then transfer the crude oil culture medium to a constant temperature and humidity incubator at a temperature of 30°C and relative humidity Under the condition of 85%, culture for 5 days; when the culture is over, rinse the surface of the crude medium with...

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PUM

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Abstract

The invention discloses a preparation method of a viscosity reducer for ultra-viscous oil pipeline transportation and belongs to the technical field of petrochemical engineering. The preparation method comprises the steps that lard oil and the like are heated and melted at first and then are subjected to still standing and mildewing; grown mold is inoculated into a prepared crude oil culture medium to be cultured; the mold in obtained hypha suspension liquid is ruptured through lysozyme, then cytoplasm is released, and mixed enzyme powder is prepared after drying; and then used oil is degraded into base oil through microorganisms in activated sludge of a secondary sedimentation tank, the base oil, the mixed enzyme powder and the like are uniformly mixed, and thus the viscosity reducer for ultra-viscous oil pipeline transportation is obtained. According to the preparation method of the viscosity reducer for ultra-viscous oil pipeline transportation, cell incision enzyme and excision enzyme in the cultured mold are utilized, in the ultra-viscous oil transportation process, energy is produced, and the affinity of colloid, asphaltene or wax molecules in ultra-viscous oil is changed, so that a carbon long chain of the ultra-viscous oil is ruptured; meanwhile, a large number of free radicals and dissociative radicals are produced and are diffused into crude oil; the alkane compositional ratio of the crude oil is increased; the freezing point and the viscosity of the crude oil are reduced; and the problem that a traditional viscosity reducer is poor in viscosity reducing effect is effectively solved.

Description

Technical field [0001] The invention discloses a preparation method of a viscosity reducer for ultra-heavy oil pipeline transportation, which belongs to the technical field of petrochemical industry. Background technique [0002] High density, high freezing point, high viscosity, and difficulty in flowing are the outstanding characteristics of heavy oil resources, which severely restrict the exploitation and transportation of heavy oil. For a long time, for the transportation of high-viscosity and high-pour-point crude oil, traditional heating and emulsification methods have been mainly adopted at home and abroad. The former is intermittent heating along the oil pipeline, which consumes a lot of fuel and power; the latter has a problem. Deal with (such as dehydration) problems. These two methods are still the main methods to deal with high pour point and high viscosity crude oil transportation. However, at present, the most common concern of the petroleum industry at home and a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D1/16
CPCF17D1/16
Inventor 雷笑天许洪祥
Owner 克拉玛依中科恒信科技有限责任公司
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