| 10161232 |
Lift valve with bellow hydraulic protection and chatter reduction |
Zlatko Salihbegovic |
2018-12-25 |
| 6740141 |
Method for removing H2S and CO2 from above ground hydrocarbon streams |
Douglas Espin, Mariela Araujo, Kenneth J. Klabunde, Shawn Decker, Slawomir Winecki |
2004-05-25 |
| 6607036 |
Method for heating subterranean formation, particularly for heating reservoir fluids in near well bore zone |
Luis Genolet, Douglas Espin, Juan Chavez |
2003-08-19 |
| 6579572 |
Water-based system for altering wettability of porous media |
Douglas Espin, Juan Chavez, Mariela Araujo, Yani Carolina Araujo, Luis Genolet |
2003-06-17 |
| 6513592 |
Method for consolidation of sand formations using nanoparticles |
Douglas Espin, Juan Chavez |
2003-02-04 |
| 6481501 |
Method and apparatus for drilling and completing a well |
Juan Chavez, Douglas Espin, Luis Genolet, Maria Alejandra Jimenez |
2002-11-19 |
| 6447577 |
Method for removing H2S and CO2 from crude and gas streams |
Douglas Espin, Mariela Araujo |
2002-09-10 |
| 6360823 |
Apparatus and method for performing downhole measurements |
Jose Zapico, Douglas Espin, Mariela Araujo |
2002-03-26 |
| 6182756 |
Method and apparatus for optimizing production from a gas lift well |
Gonzalo Garcia |
2001-02-06 |
| 5708272 |
Apparatus for determining a parameter of a substance, especially a hydrocarbon |
Pedro Felipe Tovar, Adriano Filadelfo Parisi |
1998-01-13 |
| 5572030 |
Method for determining parameter of hydrocarbon |
Fernando Arroyo, Adriano Filadelfo Parisi, Hernan Prieto |
1996-11-05 |