Intevep, S.a.

Lirio Quintero

Hercilio Rivas

Maria Luisa Chirinos

Domingo R Polanco

Mayela Rivero

Antonio E Cardenas

Humberto Marquez

Euler Jimenez G

Daysi Rojas

Jose Salazar P

Ignacio A Layrisse R

Manuel Mas

Jose Blanco

Reinaldo Jacques Gabay

Maria Isabel Hernandez

A thermally stable drilling fluid system includes drilling fluid and an additive wherein the additive includes styrene-butadiene copolymers having an average molecular weight greater than about 500,000 g/mol, wherein the drilling fluid system exhibits fluid loss control at high temperature and high pressure conditions.

Thermally stable drilling fluid

A thermally stable well servicing fluid includes a fluid portion in the form of an oil-in-water emulsion; and a surfactant mixture including an anionic surfactant selected from the group consisting of alkali metal salts of alkyl sulphates, alkali metal salts of alkyl sulphonates, and mixtures thereof, and a non-ionic surfactant selected from the group consisting of ethoxylated alkyl phenols, ethoxylated aliphatic alcohols and mixtures thereof, the surfactant mixture containing the anionic surfactant and the non-ionic surfactant at a ratio by weight of between about 70:30 to about 80:20, the fluid being stable at temperatures exceeding 220.degree. F.

Oil in water emulsion well servicing fluids

Methods for the formation, processing, transportation and end use of a hydrocarbon-in-water emulsion.

Viscous hydrocarbon-in-water emulsions

Method for the formation, processing, transportation and end use of a hydrocarbon-in-water emulsion.

Growing community of inventors

Edo. Miranda, Venezuela

Lirio Quintero