High-thick crude-oil adhesive-reducing agent and producing method therefor

A production method and viscosity reducer technology, which is applied in the field of heavy oil viscosity reducer, can solve problems such as mining difficulties, and achieve the effects of wide adaptability, stable performance, and reduced viscosity

Active Publication Date: 2007-11-14
孙保兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the oil reservoirs discovered in my country's Liaohe, Shengli, Xinjiang and other oil fields, a considerable part of the crude oil has a viscosity of 2.0×10 4 mpa.s-1.0×10 5 mpa.s, all of which belong to heavy oil, are very difficult to exploit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] At 35°C and normal pressure, add 5g fatty alcohol polyoxyethylene ether potassium sulfate, 30g acetyl monoethanolamine, 10g alkylphenol polyoxyethylene ether, 20g isooctyl alcohol polyoxyethylene ether, and stir until the mixture is uniform. Under the condition of stirring, add 35g of potassium citrate and 120g of water, keep warm at 50-55°C, and stir for 1 hour to obtain a light yellow viscous liquid with a viscosity of 300mpa.s (25°C).

Embodiment 2

[0030] At 50°C and normal pressure, add 5g fatty alcohol polyoxyethylene ether potassium sulfate, 60g acetyl monoethanolamine, 40g alkylphenol polyoxyethylene ether, 100g isooctyl alcohol polyoxyethylene ether, and stir until the mixture is uniform. Under the condition of stirring, add 45g of potassium citrate and 170g of water, keep warm at 50-55°C, and stir for 2 hours to obtain a light yellow viscous liquid with a viscosity of 260mpa.s (25°C).

Embodiment 3

[0032] At 55°C and normal pressure, add 5g of fatty alcohol polyoxyethylene ether potassium sulfate, 40g of acetyl monoethanolamine, 30g of alkylphenol polyoxyethylene ether, and 80g of isooctyl alcohol polyoxyethylene ether, and stir until they are evenly mixed. Under the condition of stirring, add 30g of potassium citrate and 175g of water, keep warm at 50-55°C, and stir for 3 hours to obtain a pale yellow viscous liquid with a viscosity of 250mpa.s (25°C).

[0033] When using viscous crude oil viscosity reducer, it is necessary to prepare an aqueous solution containing high viscous crude oil visbreaker with a concentration of 0.8-1.5% by weight. After mixing, keep the temperature at 30-55°C for 2 hours, then stir properly, then the thick oil will become a low-viscosity oil-in-water emulsion.

[0034] Practical example:

[0035] example 1. Add 25g of an aqueous solution of 1.0% viscosity reducer to 100g of crude oil (viscosity 1.2×10 5 mpa.s) at a constant temperature of ...

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Abstract

The present invention, a high-consistency crude oil dimension agent and the way of making it, belongs to oil area, especially when used in crude oil and oil production; it can be effectively decrease the viscidity of crude oil. The high-consistency crude oil dimension agent consists of six components: polyoxyethylenated alcohol vitriol ate of tartar (one share), acetyl tannic ace amide (6-12 shares), polyoxyethylated alkylphenol (2-8 shares ), isooctyl alcohol polyethenoxy ether (3-20 shares ), potassium citrate (6-10 shares), water (25-35 shares ), according to the weight. The viscidity is 250-350 map's to the temperature of 25Deg.c. The high-consistency crude oil dimension agent should be used as a density of 0.8-1.5%. The present invention is good for crude oil dimension, the function is stable, and it is widely adept. The present invention solves the problems in consistency oil production.

Description

technical field [0001] The high-viscosity crude oil viscosity reducer and production method of the invention belong to the field of petroleum, in particular to a heavy oil viscosity reducer and production method that can effectively reduce the viscosity of crude oil in the process of petroleum crude oil recovery. Background technique [0002] The amount of colloid and bitumen contained in the crude oil stored in the ground directly affects the viscosity of crude oil. If the crude oil viscosity exceeds 6.0×10 3 mpa.s call it heavy oil. Under the condition of 50°C in the formation, some of them cannot be mined without taking some physical and chemical measures at only 10°C. The viscosity of crude oil exceeds 2.0×10 4 Above mpa.s, it is called high-viscosity crude oil. [0003] The commonly used methods for heavy oil production are steam huff and puff and electric heating method, that is, hot steam of 10-30MPa is injected into the oil layer, and the temperature of the crude...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/52
Inventor 孙保兴
Owner 孙保兴
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