Withdrawal of gases and liquids from an in situ oil shale retort
An in situ oil shale retort is formed within a subterranean formation containing oil shale. The retort contains a fragmented permeable mass of formation particles containing oil shale. A production level drift extends below the fragmented mass, leaving a lower sill pillar of unfragmented formation between the production level drift and the fragmented mass. During retorting operations, liquid and gaseous products are recovered from a lower portion of the fragmented mass. A liquid outlet line extends from a lower portion of the fragmented mass through the lower sill pillar for conducting liquid products to a sump in the production level drift. Gaseous products are withdrawn from the fragmented mass through a plurality of gas outlet lines distributed across a horizontal cross-section of a lower portion of the fragmented mass. The gas outlet lines extend from the fragmented mass through the lower sill pillar and into the production level drift. The gas outlet lines are connected to a gas withdrawal manifold in the production level drift, and gaseous products are withdrawn from the manifold separately from withdrawal of liquid products from the sump in the production level drift.
- Research Organization:
- Occidental Oil Shale, Inc., Grand Junction, CO (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC20-78LC10036
- Assignee:
- Occidental Oil Shale, Inc. (Grand Junction, CO)
- Patent Number(s):
- 4,357,051
- Application Number:
- 06/155411
- OSTI ID:
- 864376
- Resource Relation:
- Patent File Date: 1980 Jun 02
- Country of Publication:
- United States
- Language:
- English
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gases
liquids
situ
oil
shale
retort
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subterranean
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permeable
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production
level
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pillar
unfragmented
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operations
liquid
gaseous
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portion
outlet
line
conducting
sump
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plurality
gas
lines
distributed
horizontal
cross-section
extend
connected
manifold
separately
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production level
particles containing
containing oil
gas outlet
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oil shale
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liquid products
unfragmented formation
liquid product
gaseous products
formation containing
level drift
retorting operations
retort contains
retorting operation
particles contain
horizontal cross-section
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