Oil recovery method using overbased waterflood additive containing sulfonates derived from alkylation reaction products
Patent
·
OSTI ID:7355752
A process is claimed for recovering hydrocarbons from a petroliferous formation comprising injecting into the formation an effective amount of an aqueous mixture containing about 0.5 to 25 wt. percent of a waterflood additive comprising (a) a base component; (b) a first sulfonate component derived from an alkylation reaction product produced by alkylating an aromatic hydrocarbon with a branched-chain alkene having about 10 to 35 carbon atoms; and (c) a second sulfonate component derived from an alkylation reaction product produced by alkylating an aromatic hydrocarbon with a partially chlorinated normal alkane having about 10 to 18 carbon atoms, said partially chlorinated alkane being prepared by chlorinating said alkane to about 2 to 15 wt. percent chlorine content; wherein the base component is present in a weight ratio range of 3/100 to 300/100, base component to total sulfonate of (b) and (c), and wherein the weight ratio of the first sulfonate component to the second sulfonate component is in the range of about 9/1 to 1/9; and waterflooding the formation to recover the displaced hydrocarbons.
- Assignee:
- Continental Oil Co.
- Patent Number(s):
- US 3952803
- OSTI ID:
- 7355752
- Country of Publication:
- United States
- Language:
- English
Similar Records
Process for recovering hydrocarbons using overbased linear alkylate sulfonates as waterflood additives
Waterflood method using overbased normal alkylaromatic sulfonates
Method using overbased branched-chain alkylaromatic sulfonates as waterflood additives
Patent
·
Tue Apr 22 00:00:00 EDT 1975
·
OSTI ID:7365840
Waterflood method using overbased normal alkylaromatic sulfonates
Patent
·
Tue Jun 29 00:00:00 EDT 1976
·
OSTI ID:6619518
Method using overbased branched-chain alkylaromatic sulfonates as waterflood additives
Patent
·
Fri Oct 11 00:00:00 EDT 1974
·
OSTI ID:7269909