ROPE-TYPE SUCKER ROD Russian patent published in 2014 - IPC F04B47/02 E21B17/00 

FIELD: oil and gas industry.

SUBSTANCE: rope-type sucker rod transferring reciprocating motion and longitudinal force from the tophead to the actuator of the oil well pump consists of the rod body and head with connecting thread. At that a locked-coil rope with Z-, X- and O-wires is used as the rod body, while an attachment ensuring equal load to all rope wires is used as the rod head. Besides, the rope-type sucker rod is designed to transfer reciprocating motion from the tophead to the actuator of the oil well pump, at that attachments are equipped with a knot preventing rope turning in the attachment.

EFFECT: improvement of operational efficiency for rope-type sucker rods during operation of oil directional wells and oil wells with offshoots as well as during production of high-viscous oil.

5 cl, 7 dwg