In situ shale-oil recovery process

US4458757A · kind A · utility

Assignee

• Exxon Research and Engineering Company · US

Inventors

• Jan Bock · Piscataway, US
• Patrick P. McCall · Matawan, US
• Max L. Robbins · South Orange, US
• Michael Siskin · Dover, US

Key dates

• Filing date: Apr 25, 1983
• Grant date: Jul 10, 1984
• Expiry date: Apr 25, 2003

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21B43/40
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a process for converting organic material of oil-shale to predominantly liquids. The oil-shale is first heated to a temperature from about 360.degree. C. to 475.degree. C. in an anionic atmosphere. The resulting liquids and gases are collected and the residue is extracted with a microemulsion capable of extracting organic material from the heat treated oil-shale.