Learning and Competence Level Objectives After completing this topic “Gamma Ray Logs”, you will be able to: Discuss the principles of natural gamma rays and gamma ray radiation. Summarize the interpretation applications of LWD and wireline gamma ray logs. Verify gamma ray log data acquisition for quality control and standard …

Underbalanced Drilling using Coiled Tubing Drilling Scenario An operator in the Michigan Basin of the United States desired to deepen a well producing from a Niagaran Reef carbonate reservoir. Conventional drilling techniques were not previously successful, because of the overpressure conditions present in this interval. The feasibility study performed by …

Coiled Tubing for Underbalanced Drilling Coiled tubing is ideally suited for drilling underbalanced. The continuous nature of the coiled tubing string and the exclusive use of a mud motor for drilling provides several advantages over conventional jointed pipe drilling for underbalanced applications: Drilling with a mud motor prevents the formation …