Petroleum engineer international - Vol. 53, No. 15 (Dec. 1981) ; 170 p.

Operators charge ahead in overthrust drilling / Will Keener -- Problem solving makes overthrust belt an exciting play / Steven D. Moore -- Experts discuss western overthrust challenges -- How to plan a bit program for a deep overthrust well / Richard C. Lyon -- On-site nozzle selection increases drilling performance / Leon H. Robinson -- Oil recovery by nitrogen-driven propane slugs / Larry E. Carlisle -- Well completions and workovers. Part. 20 / Douglas Patton -- Guyed tower design and analysis. Part 3 / Marius J. Mes -- Understanding solids control improves drilling efficiency / George S. Ormsby.

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