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Oil-soluble viscosity reducer for extremely-viscous oil

A technology for super-heavy oil and viscosity reducer, which is applied in drilling compositions, chemical instruments and methods, etc., can solve problems such as difficult dispersion, inability to directly dissolve asphaltenes, waxes, etc., and achieves solutions to production problems and good technology conditions, the effect of reducing production costs

Inactive Publication Date: 2010-09-29
宁夏大生生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this type of viscosity reducer is: it can only form an emulsion with heavy oil, it cannot directly dissolve asphaltenes and waxes, it is difficult to disperse evenly into the oil, and it needs external conditions of stirring to implement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, comprising the following components by weight percentage: (1) solvent naphtha: ratio 63%; (2) polyoxyethylene ether (12) ratio 27%; (3) emulsifier 1 ratio 5%; (4) emulsification The proportion of agent 2 is 5%.

Embodiment 2

[0020] Embodiment 2, comprising the following components by weight percentage: (1) solvent naphtha: ratio 65%; (2) polyoxyethylene ether (12) ratio 27%; (3) emulsifier 1 ratio 4%; (4) emulsification The proportion of agent 2 is 4%.

Embodiment 3

[0021] Embodiment 3, the preferred technical scheme comprises the following components by weight percentage: (1) solvent naphtha: ratio 60%; (2) polyoxyethylene ether (12) ratio 34%; (3) emulsifier 1 ratio 3% (4) The ratio of emulsifier 2 is 3%.

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PUM

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Abstract

The invention relates to a viscosity reducer, in particular to an oil-soluble viscosity reducer for extremely-viscous oil. The technical scheme is that: the viscosity reducer comprises the following components in percentage by weight: (1) 50 to 65 percent of solvent, (2) 20 to 30 percent of polyoxyethylene ether, (3) 3 to 5 percent of emulsifier 1, and (4) 3 to 5 percent of emulsifier 2. The viscosity reducer has the advantages of completely overcoming difficulty in the exploitation of the viscous oil and providing good technical conditions for great increase in the yield of the viscous oil and the reduction of production cost.

Description

1. Technical field: [0001] The invention relates to a viscosity reducer, in particular to an oil-soluble super heavy oil viscosity reducer. 2. Background technology: [0002] Heavy oil, called heavy crude oil in foreign countries, refers to the viscosity of crude oil greater than 50mPa s under oil reservoir conditions or the viscosity of degassed crude oil greater than 100mPa s and density greater than 0.934g / cm at the oil reservoir temperature 3 of crude oil. In recent years, oil experts from various countries believe that the development of light crude oil is limited by reserves, and there will not be too many reserves of light crude oil for us to exploit. According to relevant data estimates, the world's light crude oil resources are 360 ​​billion tons. The recoverable reserves are 135 billion tons, while the resources of heavy crude oil are 900 billion tons, and the recoverable reserves are 180 billion tons. There are more than 20 heavy oil fields that have been prove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/588C09K8/524
Inventor 徐如思
Owner 宁夏大生生物科技有限公司