| 4724907 |
Method and device for blending surfactant mixtures for treatment of oil wells |
— |
1988-02-16 |
| 4668408 |
Composition and method for treatment of wellbores and well formations containing paraffin |
Kang Yang |
1987-05-26 |
| 4605069 |
Method for producing heavy, viscous crude oil |
Henry A. Bourne, Jr., Donald L. Whitfill |
1986-08-12 |
| 4355651 |
Method of transporting viscous hydrocarbons |
— |
1982-10-26 |
| 4333488 |
Method of transporting viscous hydrocarbons |
— |
1982-06-08 |
| 4287902 |
Method of transporting viscous hydrocarbons |
Charles R. Clark |
1981-09-08 |
| 4274943 |
Removal of metal alkaryl sulfonates from hydrocarbons |
— |
1981-06-23 |
| 4249554 |
Method of transporting viscous hydrocarbons |
— |
1981-02-10 |
| 4246920 |
Method of transporting viscous hydrocarbons |
— |
1981-01-27 |
| 4246919 |
Method of transporting viscous hydrocarbons |
— |
1981-01-27 |
| 4239052 |
Method of transporting viscous hydrocarbons |
— |
1980-12-16 |
| 4235712 |
Removal of anionic surfactants from water |
— |
1980-11-25 |