Artificial lifting device and method

Artificial oil lifting unit using absorbent belts

Artificial underground cavern for storing natural gas in gas...

Asphalt plug emplacement process

Asphaltene inhibitors

Asphaltenes monitoring and control system

Assembly and method for hanging elongated tubing in well bore

Assembly and method for locating lateral wellbores

Assembly and method for production of gas, or gas and...

Assembly and method for the extraction of fluids from a...

Assembly and method for transient and continuous testing of...

Assembly and process for drilling and completing multiple wells

Assembly and process for drilling and completing multiple wells

Assembly and process for drilling and completing multiple wells

Assembly comprising pump rod and threaded union

Assembly enabling oriented drilling

Assembly for cooling the teeth of the cutting head and the...

Assembly for drilling low pressure formation

Assembly for hydraulic extraction of sheet-like mineral...

Assembly for introducing steam into an oil-bearing stratum