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Process for upgrading heavy crude oil production

A crude oil and heavy technology, applied in chemical dehydration/demulsification, petroleum industry, refined hydrocarbon oil, etc., can solve the problems of continuous pollution treatment, difficult separation of solid substances, etc.

Inactive Publication Date: 2004-06-02
QUADRANT MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, other difficult sources of crude oil are the tar sands, originating primarily in Canada, where the solids are difficult to separate from the crude that can be refined, and where separation may occur, there will be significant problems due to continuous contamination of the solids being processed. solving issues

Method used

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  • Process for upgrading heavy crude oil production
  • Process for upgrading heavy crude oil production
  • Process for upgrading heavy crude oil production

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Embodiment Construction

[0015] This method is used to recover useful crude oil from solids such as sand or coke or semi-solids such as bitumen. It is a flexible method that can be used by those skilled in the art to upgrade the quality of many different heavy crudes.

[0016] An integrated process includes the complete processing steps of unrefined heavy crude which may include many, but not necessarily all, of the following steps. Crude oils, especially heavy crudes, vary widely in character, composition and properties. Many variations of the processing method will be apparent from the following description of the processing method for improving the quality of heavy crude oil. Those skilled in the art will recognize many beneficial variations in the practice of the present invention. The vast majority of these steps are well known.

[0017] Coarse mechanical impurities are first removed from the crude oil by passing it through a suitable sized sieve. The sieving devices are arranged in a double ...

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Abstract

A process for upgrading heavy crude oil production is described which involves adding a diluent, or solvent, which is a light hydrocarbon to reduce the viscosity and specific gravity of the crude oil being processed. After dilution, the emulsions in the crude are broken and the separation of the crude into the components follows, aided by a second injection of diluent. This upgrades the crude and enhances the amount recovered for processing at a refinery. A high asphalt content of a heavy crude can also be tolerated in the practice of this invention resulting in environmentally-benign solids and water exiting a process which due to the modularization of equipment can be practiced at the well-head itself.

Description

technical field [0001] The present invention relates to improvements in the extraction of usable crude oil from heavy crude oil production. This improvement can be applied to oil field production areas as well as refineries. Background technique [0002] In the processing of crude oil prior to refinery separation, the presence of difficult emulsions is often a serious problem, leading to oil loss, contamination problems, corrosion, fouling or clogging problems, and expensive environmental disposal costs. These emulsions are often associated with the production of crude oils from crude-forming sources, especially when the crude oils are heavy crudes with a fuel density (American Petroleum Institute) of about 20 or less, especially those with a fuel density of 7 Crude oils ranging from 1 to 12 are particularly difficult to extract, and when exploited, are difficult to refine. Many recovered crude oils also contain soluble inorganic salts such as sodium...

Claims

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Application Information

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IPC IPC(8): C10G21/00C10G33/04C10G53/04
CPCC10G33/04C10G53/04C10G21/003
Inventor 欧内斯特·O·奥赫松尔约翰·W·平克顿托马斯·E·吉勒斯匹托马斯·H·莱逖
Owner QUADRANT MANAGEMENT
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