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Composition for underground modification, viscosity reduction and catalysis of crude oil

A technology of composition and crude oil, which is applied in the direction of drilling composition, catalytic cracking, chemical/physical processes, etc., can solve the problems of high equipment requirements, limited catalytic effect, and short contact time between crude oil and catalyst, and achieve simple operation, Effects of reducing costs and improving catalytic efficiency

Active Publication Date: 2014-06-25
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology requires high equipment and the catalyst cannot be regenerated and reused. In addition, the contact time between crude oil and the catalyst is short, and the catalytic effect is limited (Source: M.Greaves, T.Xia, CAPRI-Downhole Catalytic Process for Upgrading Heavy Oil: Produced Oil Properties and Composition, PETSOC, 2001-023)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This example provides a catalytic composition for underground upgrading of crude oil and viscosity reduction, which includes the following components in weight percent:

[0028] 3 tons of iron oleate, 6.99 tons of petroleum ether, and 0.01 tons of alkanolamide.

[0029] Preparation of composition emulsion for crude oil upgrading and viscosities reduction catalysis:

[0030] A total of 10 tons of all components of the composition for underground crude oil modification and viscosity reduction catalysis are added to 10 tons of water, and stirred evenly to obtain the emulsion of the composition for crude oil underground modification and viscosity reduction catalysis.

[0031] The application of the composition emulsion for crude oil underground modification and viscosity reduction catalysis to reduce the viscosity of heavy oil during oil production includes the following steps:

[0032] An oil well with a viscosity of 8088 mPas (50°C) is used as an experimental oil well fo...

Embodiment 2

[0036] This example provides a catalytic composition for underground upgrading of crude oil and viscosity reduction, which includes the following components in weight percent:

[0037] 3 tons of nickel oleate, 6.99 tons of hexane, and 0.01 tons of alkanolamide.

[0038] Preparation of composition emulsion for crude oil upgrading and viscosities reduction catalysis:

[0039] A total of 10 tons of all components of the composition for underground crude oil modification and viscosity reduction catalysis are added to 10 tons of water, and stirred evenly to obtain the emulsion of the composition for crude oil underground modification and viscosity reduction catalysis.

[0040] The application of the composition emulsion for crude oil underground modification and viscosity reduction catalysis to reduce the viscosity of heavy oil during oil production includes the following steps:

[0041] An oil well with a viscosity of 11078 mPas (50°C) is used as an experimental oil well for cataly...

Embodiment 3

[0045] This example provides a catalytic composition for underground upgrading of crude oil and viscosity reduction, which includes the following components in weight percent:

[0046] 3 tons of copper oleate, 6.99 tons of xylene, and 0.01 tons of alkanolamide.

[0047] Preparation of composition emulsion for crude oil upgrading and viscosities reduction catalysis:

[0048] A total of 10 tons of all components of the composition for underground crude oil modification and viscosity reduction catalysis are added to 10 tons of water, and stirred evenly to obtain the emulsion of the composition for crude oil underground modification and viscosity reduction catalysis.

[0049] The application of the composition emulsion for crude oil underground modification and viscosity reduction catalysis to reduce the viscosity of heavy oil during oil production includes the following steps:

[0050] An oil well with a viscosity of 11752 mPas (50°C) is used as an experimental oil well for cata...

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PUM

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Abstract

The invention provides a composition for underground modification, viscosity reduction and catalysis of crude oil. The composition comprises the following components in percentage by weight: 30wt%-50wt% ofcatalysts, 45wt%-70wt% of solvent and 0.1wt%-1wt% of solubilizer, wherein the sum of the weight percentages of the components is 100%; the catalyst is organic metal salt, the solvent comprises an organic solvent and / or a petroleum product, and the solubilizer is a surfactant. According to the composition, water is taken as a medium to be injected into an oil deposit, so that the operation is simple, and the costs for the catalysis, modification and viscosity reduction of thickened oil can be effectively reduced; after entering the oil deposit, the composition can be well mutually dissolved with the crude oil, so that the catalysis efficiency can be effectively increased.

Description

technical field [0001] The invention relates to a catalytic composition for underground crude oil upgrading and viscosity reduction, which belongs to the technical field of oil and gas development. Background technique [0002] The world's heavy oil resources are huge, estimated to be several times higher than conventional crude oil resources, and are one of the most realistic alternative energy sources. Heavy oil resources are widely distributed and found in almost all oil-producing countries. According to survey data, countries rich in heavy oil (including extra-heavy oil) resources in the world include the United States, Venezuela, Canada, and the former Soviet Union. Sand resource about (4000-6000)×10 8 m 3 (including forecast resources). my country is extremely rich in heavy oil resources, and more than 70 heavy oil fields have been discovered in 12 large and medium-sized oil-bearing basins and depressions, including the Bohai Bay Basin, Songliao Basin, Nanxiang Basi...

Claims

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Application Information

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IPC IPC(8): B01J31/04C09K8/594C10G11/02
Inventor 李阳昝成黄佳周新宇江航吴康云
Owner PETROCHINA CO LTD
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