Viscosity-reducing and scale-controlling uniform mixing method for crude oil mixed liquor and viscosity-reducing and scale-controlling uniform mixer thereof

Abstract

The invention relates to a viscosity-reducing and scale-controlling uniform mixing method for crude oil mixed liquor and a viscosity-reducing and scale-controlling uniform mixer thereof to solve the problem that the conventional crude oil mixed liquor is difficult to treat. In the method, the crude oil mixed liquor is subjected to viscosity reduction, scale control and uniform mixing through high speed shear, rapid pressure release and enforced cyclone. The uniform mixer comprises a high pressure bucket of which the inlet end is sealed, and a low pressure bucket of which the inner periphery of the outlet end is uniformly provided with guide plates; and the outer periphery of the high pressure bucket sleeved in the low pressure bucket is provided with slits uniformly distributed and the inner end of the high pressure bucket is enclosed. By adopting a method of high speed shear, rapid pressure release and change of the liquid flowing state, the effects of reducing the viscosity of the liquid, fully mixing the medicament and the liquid, eliminating large grain size emulsion, and improving the demulsification effect of the medicament can be simultaneously achieved, and the aims of reducing the medicament adding amount and preventing crystal nucleus from coalescence and precipitation to control scale and prevent wax are fulfilled.

Description

technical field [0001] The invention relates to crude oil mixed liquid processing equipment in the field of oilfield ground machinery, in particular to a viscosity-reducing and anti-scaling homogenization method for crude oil mixed liquid and a viscosity-reducing and anti-scaling homogenizer. Background technique [0002] After the oil field enters polymer flooding and (alkali, surfactant, polymer) three-component oil flooding, the viscosity, emulsification degree, and silt content of the oil well production fluid increase greatly, which increases the crude oil gathering and transportation, oil-water separation and oil content. Sewage treatment is difficult, resulting in accelerated fouling of crude oil gathering and transportation pipelines, frequent tripping of electric dehydrators, excessive water content in crude oil transportation, increased dosage of chemicals, poor treatment efficiency and effect of original surface engineering equipment, and excessive injection water ...

AI Technical Summary

Problems solved by technology

[0002] After the oil field enters polymer flooding and (alkali, surfactant, polymer) three-component oil flooding, the viscosity, emulsification degree, and silt content of the oil well production fluid increase greatly, which increases the crude oil gathering and transportation, oil-water separation and oil content. Sewage treatment is difficult, resulting in accelerated fouling of crude oil gathering and transportation pipelines, frequent tripping of electric dehydrators, excessive water content in crude oil transportation, increased dosage of chemicals, poor treatment efficiency and effect of original surface engineering equipment, and excessive injection water quality, causing serious damage to oil fields. Development has a certain impact

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