Combustion air supply to in-situ retorts

Patent · Tue May 08 00:00:00 EDT 1979

OSTI ID:6087946

Kvapil, R; Clews, K M

An underground deposit of a carbonaceous material is retorted in an array of in-situ retorts arranged in a plurality of parallel rows. Each row of retorts is separated from adjacent rows by a pillar that extends unbroken for the length of the row. An apex drift extends longitudinally of each row and forms the crown of the retorts in that row. Combustion air for the retorting of the deposit in rubblized retorts in one row is supplied through the apex drift of an adjacent row. Delivery of combustion air into the crown of a retort for the retorting of the rubblized oil shale is through cross drifts from the apex drift of the adjacent row of retorts. Following combustion of the deposit in retorts in the first row, retorts are constructed and rubblized in a second row with the apex drift through which air had previously been supplied forming the crown of the retorts in the second row. Air for retorting deposit in the second row of retorts is delivered through a third apex drift.

• Assignee: Golder Associates, Inc.
• Patent Number(s): US 4153299
• OSTI ID: 6087946
• 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
AIR
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMBUSTION
CONFIGURATION
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
IN-SITU PROCESSING
IN-SITU RETORTING
OIL SHALES
OXIDATION
PROCESSING
RETORTING
THERMOCHEMICAL PROCESSES