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Additive for reducing viscosity in heavy crude oil

Inactive Publication Date: 2016-01-14
INTREVEP SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention relates to a method for reducing the viscosity of heavy crude oil by using a natural-surfactant type biomarker made of saponins and fatty acids. This method does not require the creation of water / oil emulsions and helps to make the oil easier to transport. The treated oil has lower viscosity, lower mixing energy, and has less environmental impact as compared to traditional synthetic surfactants and diluents. The saponins used in the invention are derived from a Sapindus Saponaria tree, which has shown promising results in reducing the viscosity of extra heavy crude oil. The method can be applied to various types of heavy or extra heavy crude oil, regardless of their starting grade or viscosity.

Problems solved by technology

Biodegradation of crude oil decreases crude oil quality and economic value.
These properties make it difficult to transport the extra heavy crude oil by pipeline.

Method used

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  • Additive for reducing viscosity in heavy crude oil
  • Additive for reducing viscosity in heavy crude oil
  • Additive for reducing viscosity in heavy crude oil

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Embodiment Construction

[0020]The invention relates to a method for increasing the mobility of a heavy crude oil, preferably through decreasing the viscosity of the heavy crude oil, through the use of an additive containing saponins which are derived from parapara fruit pods (Sapindus saponaria).

[0021]As described above, there is a need for more effective methods for reducing viscosity and improving the flowability of heavy and extra heavy crude oils. These crude oils are available in abundant supply, but their processing, refining and upgrading frequently require them to be transported over potentially long distances to facilities for conducting such processes.

[0022]Heavy and extra heavy crude oils can become more viscous and less flowable, due to biodegradation and migration, and this further increases the problems with transporting such crude oils.

[0023]In accordance with the present invention, it has been found that extract from the fruit pods of Sapindus Saponaria can be mixed with paraffins and olefi...

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Abstract

A method for increasing mobility of a heavy crude oil includes mixing an additive containing saponins and fatty acids with a heavy crude oil, wherein the saponins are derived from Sapindus Saponaria.

Description

BACKGROUND OF THE INVENTION[0001]The invention relates to reduction of viscosity of heavy crude oils and, more particularly, to an additive and method for preparing the additive which help reduce viscosity in heavy crude oil.[0002]Biodegradation of crude oil decreases crude oil quality and economic value. The resulting enrichment of heavy polar components leads to an increase in specific gravity, viscosity, (10,000 cps), acidity and content of sulfurs, asphaltenes and vanadium / nickel metals. These properties make it difficult to transport the extra heavy crude oil by pipeline.[0003]Transportation of extra heavy oil outside of the well typically requires that the crude oil be heated or blended with diluents (BTX, light oils and kerosene) to reduce viscosity, or that the oil be upgraded on site, prior to transportation. Hence, decreasing the viscosity of the extra heavy crude oil decreases the amount of pumping energy required and potentially improves the transit time and productivity...

Claims

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Application Information

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IPC IPC(8): C09K23/00C10L1/18C09K23/56
CPCC10L1/1802C09K8/524C09K8/584C09K8/58
Inventor PEREZ, MIGUEL, ANGEL
Owner INTREVEP SA
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