Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6435277 | Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations | Qi Qu, Erik Nelson, Dean M. Willberg, Mathew M. Samuel, Jesse Lee +4 more | 2002-08-20 |
| 6399546 | Fluid system having controllable reversible viscosity | Qi Qu, Matthew J. Miller | 2002-06-04 |
| 6342467 | Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations | Mehmet Parlar | 2002-01-29 |