Abstract:

Electrical oil submersible pump is one of the mail artificial lift method s in oil-field mid back development stage and has been widely used in mail oil-producing countries. Starting with shaft’s strength and stiffness questions of oil submersible multi-stage centrigugal pumps, this paper approaches the limit setting depth of electrical oil submersible pump using the continuous beams theory under the action of direct compression and lateral load. Finally the 200 m3 D electrical oil submersible pump mad in china is taken for example to show the effect of concerned parameters on deformation and strength of the shaft, and analyze and discuss the main calculation results

Key words: Electrical oil submersible pumps, Limit setting depth, Strength and stiffness of the pump shaft, Continuous beams theory