Oil Jet Pump - Enhanced Oil & Gas Well Recovery

Oil & Gas Well Drilling Procedures, Processes, & Diagrams

 

HOME

Horizontal & Directional Drilling

Microhole Slimhole Drilling

C02 Flood

Waterflood

______

Oil & Gas Publications

Directory of Companies

Oil and Gas Associations

Offshore Oil Rigs and

Offshore Drilling Companies
 

 

 

 

There are four basic types of off shore drilling rigs for exploration:

Offshore Oil Rigs

  • Submersibles - These are not used often. They can be in shallow water locations then ballasted to sit on the bed of the ocean

  • Jackups -  Usually used in waters around 160 metres deep. They are almost always towed to their location an lowered and setup in their location

  • Drill ship.  These locations look like regular ships but have a derrick on the top which drills through a hole in the hole.  They are anchored at a certain position and uses it's computer controlled propellers to continually correct the ships drift. Often used to drill 'wildcat' wells in deep waters

  • Semi submersible - These are mobile structures. Their superstructures are supported by columns sitting on hulls or pontoons which are ballasted below the water surface. They provide excellent stability in rough, deep seas.

The moveable offshore rigs are mostly used for exploratory purposes because they are less expensive to use than the permanent platforms.

 

Production platforms

Once oil or gas is discovered, the drilling rig is generally replaced by a production platform, assembled at the site using a barge equipped with heavy lift cranes.

Platforms vary in size, shape and type depending on the size of the field, the water depth
 

 

Oil Drilling Procedures Processes & Diagrams

 

ESP - Electric Submersible Pump

 

Drilling Bits - Diamond & Core Rock

 

 

Oil & Gas  Magazine - A News Publication on Offshore Oil Companies

Oil Gas Investor Magazine

 

 

Email us for an evaluatioln of your drilling operation...

 

free hit counter