Determining the locus of a processing zone in an oil shale retort by effluent off gas heating value

Patent · Tue Jul 21 04:00:00 EDT 1981

OSTI ID:5993164

Cha, C Y

A processing zone advances through a fragmented permeable mass of particles containing oil shale in an in situ oil shale retort in a subterranean formation containing oil shale. The retort has an effluent gas passing therefrom. The effluent gas has a heating value which is dependent on the kerogen content of the oil shale then in contact with the processing zone. To determine the locus of the processing zone, the formation is assayed at selected locations in the retort for kerogen content before processing the selected locations, and effluent gas from the retort is monitored for its heating value.

• Assignee: Occidental Oil Shale Inc
• Patent Number(s): US 4279302
• OSTI ID: 5993164
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMBUSTION WAVES
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASEOUS WASTES
IN-SITU PROCESSING
IN-SITU RETORTING
KEROGEN
MATERIALS
MONITORING
OIL SHALES
ORGANIC MATTER
PROCESSING
RETORTING
TEMPERATURE MONITORING
WASTES