Well Casing - James Van Blaricum

Installing well casing is an important part of the drilling and completion process. Well casing consists of a series of metal tubes installed in the freshly drilled hole. Casing serves to strengthen the sides of the well hole, ensure that no oil or natural gas seeps out of the well hole as it is brought to the surface, and to keep other fluids or gases from seeping into the formation through the well. A good deal of planning is necessary to ensure that the proper casing for each well is installed. Types of casing used depend on the subsurface characteristics of the well, including the diameter of the well (which is dependent on the size of the drill bit used) and the pressures and temperatures experienced throughout the well. In most wells, the diameter of the well hole decreases the deeper it is drilled, leading to a type of conical shape that must be taken into account when installing casing. To review the drilling of a natural gas well and the history of drilling practices, James Van Blaricum.

There are five different types of well casing. They include:

• Conductor Casing
  
• Surface Casing
  
• Intermediate Casing
  
• Liner String
  
• Production Casing

 

 

 

 

 

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