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This paper presents the actual status of the construction, making and use of progressive cavity pumps in Romanian oil industry. More companies have been autorized to produce screw pumps: PCM Pompes - France, Mono Pumps LTD - Englandand Robbins Myers Inc. - USA, Nemo Plus-Germany, Le Grand- Canada, Kachele-Germany, UPETROM 1 MAI-Romania, Confind-Campina-Romania. Over the years other small companies which produce these kinds of pumps have switched to the manufacturing of pumps, according to the progressive cavity principle, known today under the name of Moineau's principle. During the movement of the pump a positive displacement, due to the distance between the rotor's axis and the stator's axis, takes place (the eccentricity of the pump).The technological processes have been presented, both for the stator and the stator on the screw pump (spiral), the constructive aspects of screw pumps, the constructive description of helical pumps and instructions for putting into service, the use of helical pumps and the present status of the use of progressive cavity pumps in Romania [1, 2, 8]. [ABSTRACT FROM AUTHOR]