Process for tertiary oil recovery using tall oil pitch

Patent · Tue Jan 01 00:00:00 EST 1985

OSTI ID:865495

Radke, Clayton J ^[1]

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1. El Cerrito, CA

Compositions and process employing same for enhancing the recovery of residual acid crudes, particularly heavy crudes, by injecting a composition comprising caustic in an amount sufficient to maintain a pH of at least about 11, preferably at least about 13, and a small but effective amount of a multivalent cation for inhibiting alkaline silica dissolution with the reservoir. Preferably a tall oil pitch soap is included and particularly for the heavy crudes a polymeric mobility control agent.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4526231
• OSTI ID: 865495
• Country of Publication: United States
• Language: English

Related Subjects

process
tertiary
oil
recovery
tall
pitch
compositions
employing
enhancing
residual
acid
crudes
particularly
heavy
injecting
composition
comprising
caustic
amount
sufficient
maintain
ph
11
preferably
13
effective
multivalent
cation
inhibiting
alkaline
silica
dissolution
reservoir
soap
included
polymeric
mobility
control
agent
heavy crude
tertiary oil
oil recovery
effective amount
composition comprising
amount sufficient
mobility control
process employing
control agent
/166/507/