Casing drilling technology
Journal Title: UNKNOWN - Year 2005, Vol 17, Issue 1
Abstract
Casing drilling is an alternative option to conventional drilling and uses standard oilf eld casing instead of drillstring. This technology is one of the greatest developments in drilling operations. Casing drilling involves drilling and casing a well simultaneously. In casing driling process, downhole tools can be retrieved, through the casing on wire-line, meaning tool recovery or replacement of tools can take minutes versus hours under conventional methods. This process employs wireline-retrievable tools and a drill-lock assembly, permitting bit and BHA changes, coring, electrical logging and even directional or horizontal drilling. Once the casing point is reached, the casing is cemented in place without tripping pipe.
Authors and Affiliations
Nediljka Gaurina-Međimurec
Keywords
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