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Method for selective plugging of depleted channels or zones in in-situ oil shale retorts

Patent ·
OSTI ID:7037113
Depleted zones or channels in in-situ retorts that bypass unretorted zones can be plugged selectively by contacting the depleted zones in the in-situ oil shale retort with an aqueous liquid, substantially free of a formation plugging amount of a solute, to increase the resistance of the depleted zone or channel to the passage of retorting gases.
Assignee:
Standard Oil Company of Indiana
Patent Number(s):
US 4431055
OSTI ID:
7037113
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
AQUEOUS SOLUTIONS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMMINUTION
DECOMPOSITION
DISPERSIONS
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUID FLOW
FLUIDS
FOSSIL FUELS
FRACTURING
FRACTURING FLUIDS
FUELS
GAS FLOW
HYDRAULIC CONDUCTIVITY
IN-SITU PROCESSING
IN-SITU RETORTING
LIQUID FLOW
MATERIALS
MIXTURES
OIL SHALES
PARTICLE RESUSPENSION
PARTICLES
PERMEABILITY
PLUGGING
PLUGGING AGENTS
PROCESSING
RETORTING
RETORTS
ROCK-FLUID INTERACTIONS
SOLUTIONS
TEMPERATURE EFFECTS
TEMPERATURE GRADIENTS
THERMAL FRACTURING