Petroleum recovery process using native petroleum surfactants
Petroleum recovery with organonitrogen thiocarbonates
Petroleum sulfonate adjuvants in epoxy resin corrosion-inhibitin
Petroleum sulfonate adjuvants in epoxy resin corrosion-inhibitin
Petroleum well having downhole sensors, communication and power
pH dependent process for retarding the gelation rate of a polyme
Phase-controlled well flow control and associated methods
Phased array approach to retrieve gases, liquids, or solids from
Phenolic and naphtholic ester crosslinked polymeric gels for per
Phosphate compound that is used in a microbial profile modificat
Phosphinate inhibitor for scale squeeze applications
Phosphorus containing ester cosurfactants in enhanced oil recove
Piezometer actuator device and method for its installation in a
Piggable separation system and method
Pilot-operated pressure-equalizing mechanism for subsurface...
Pipe alignment apparatus
Pipe assembly with a plurality of outlets for use in a...
Pipe base well screen and system for joining a plurality of well
Pipe base well screen and system for joining a plurality of well
Pipe centralizer and method of attachment