Removal of oil and chloride from oil contaminated material

Removal of tubulars from wells

Removing a waste component from a hydrocarbon fluid

Removing scale from oil wells

Removing water from oil-producing formations

Repeater for wired drill pipe

Replaceable antennas for subsurface monitoring apparatus

Replaceable bit nozzle

Replaceable consumable erosion detector

Replaceable drill bit assembly

Replaceable drive stem for a raise drill

Replaceable electrical device for drilling tool

Replaceable sleeve drill collar stabilizer

Replaceable wear pad for a rock bit cutter yoke

Replacement of seals in a well ram type blow out preventer

Replacing mains

Representation of whirl in fixed cutter drill bits

Reservoir fluid sampling

Reservoir fluids production apparatus and method

Reservoir management system and method