STUCK PIPE-1 FLOW CHARTS HELP PREVENT STUCK PIPE PROBLEMS

To combat stuck pipe, BP Exploration Inc. has developed a training program and constructed several flow diagrams for drillers to refer to. Four of these flow charts are given in this first of a two-part series. Fig. 1 traces reasons for increased torque during rotary drilling. Fig. 2 charts causes for the drag trend increasing when moving the drillstring from static. Reasons for increasing resistance and drag while tripping in and out are covered in Figs. 3 and 4. Flow charts for reaming,

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