Aqueous fluid drive process
Patent
·
OSTI ID:5665990
Oil is displaced from an oil-bearing stratum by incorporating one of the long chain dispersing type surfactants in an aqueous solution of oil-displacing surfactant containing a suspension of minute solid carriers for the surfactant and injecting a slug of the resulting aqueous suspension into the oil stratum in advance of an aqueous driving fluid such as steam and/or water. The solids are of a size in the range of 0.001 to 1 mu and the quantity is in the range of 0.05 to 2% by wt of the solution. The concentration of oil-displacing surfactant is in the range of 0.001 to 2% by wt and preferably 0.01 to 1% by wt and a similar concentration of the dispersing surfactant is used. The size of the slug to be injected in such an aqueous fluid drive depends upon the particular characteristics of the stratum. 5 claims.
- Assignee:
- Phillips Petroleum Co
- Patent Number(s):
- US 3407877
- OSTI ID:
- 5665990
- Country of Publication:
- United States
- Language:
- English
Similar Records
Oil recovery method using an aqueous fluid drive
Aqueous fluid drive process using minute solids in suspension
Process for oil recovery by aqueous drive
Patent
·
Mon Nov 08 23:00:00 EST 1971
·
OSTI ID:6285792
Aqueous fluid drive process using minute solids in suspension
Patent
·
Mon Nov 03 23:00:00 EST 1969
·
OSTI ID:5310531
Process for oil recovery by aqueous drive
Patent
·
Tue Jun 20 00:00:00 EDT 1967
·
OSTI ID:6323085