Liquid preflush composition and use thereof in acidizing earth formations
Patent
·
OSTI ID:5517755
A method is provided for treating earth formations containing petroleum and water to stimulate production of petroleum without increasing substantially the production of water. A liquid preflush composition, including a liquid hydrocarbon, a fatty acid soap, and an agent for solubilizing the soap in the oil, is injected into the formation to plug the water-bearing passages while leaving the oil-bearing passages open. Thereafter, an acidizing solution is pumped into the formation to selectively acidize and stimulate the oil-bearing passages. Preflush compositions for use in the method are disclosed. (11 claims)
- Assignee:
- Byron Jackson Inc.
- Patent Number(s):
- US 3421585
- OSTI ID:
- 5517755
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
ADDITIVES
CLEANING
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
LIQUIDS
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PLUGGING
PRODUCTION
PUMPING
RECOVERY
SOAPS
SOLUBILITY
SOLUTIONS
STIMULATION
WASHING
WATER INFLUX
WELL COMPLETION
WELL STIMULATION
WELLS
WETTABILITY
020300* -- Petroleum-- Drilling & Production
ACIDIZATION
ADDITIVES
CLEANING
DISPERSIONS
ENERGY SOURCES
ENHANCED RECOVERY
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
LIQUIDS
MIXTURES
OIL WELLS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PLUGGING
PRODUCTION
PUMPING
RECOVERY
SOAPS
SOLUBILITY
SOLUTIONS
STIMULATION
WASHING
WATER INFLUX
WELL COMPLETION
WELL STIMULATION
WELLS
WETTABILITY