Petroleum engineer international - Vol. 55, No. 8 (Jul. 1983) ; 112 p.

Well servicing costs hit Bleakley -- Electricity on the rig, part 3 / Will L. McNair -- What's new.. in well completions and workovers Hp-41 calculates dykstra-parsons permeability / Bob Bixler -- ESP-the electrical submersible pump / Lewis Beck -- Nitrogen from air aids condensate recovery / W.B. Bleakley.

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