Knowing Your Options When Attempting to Sidetrack in Open Hole

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Provided by: American Association of Drilling Engineers
Topic: Software
Format: PDF
This paper discusses alternate open hole sidetracking methods and case histories. These new methods in comparison to cement plugs are proving to be faster and more economical. Generally when problems arise in drilling operations the probability of recovering the fish is small initially and decreases with time. It has been this lack of success coupled with the associated risk and economics that have made fishing in these applications negligible. Often it is opted to abandon the fish and sidetrack immediately. These decisions are based on the overall drilling economics, taking into account are the total operational cost versus the cost of the tools left in the hole.
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