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Unformatted text preview: (6) What are the two things that a rig can use to control well pressure and prevent blow outs? (7) Steel strings of pipe called casing strings are cemented in the well to isolate weak rock zones from higher pressures that may be encountered while drilling deeper. What are the other reasons for using the special strings of casing listed below? (a) Surface Casing (b) Intermediate Casing (c) Production Casing (8) For wells drilled from a drill ship or a semi-submersible how are the casing strings suspending in the well? (9) What are five reasons to drill a directional well? (10) What does the term "fishing" mean in drilling operations?...
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This note was uploaded on 11/03/2010 for the course PGE 203 taught by Professor Taylor during the Spring '08 term at University of Texas at Austin.
- Spring '08