A New Type Of Screw Pump Well Anti-reverse Device In Oil Field Application

Stop screw pump production system, stored in the hydraulic motor and screw pump pumping effect of torsion potential energy rod of sucker rod string, the drive screw pump ground driving device rapid inversion, resulting in sucker rod tripping, throwing light rod bending, surface drive device parts damage and other accidents, serious harm to the screw pump the equipment and site operation personnel safety. In order to prevent the rapid reversal stop screw pump production system, control system generally set inversion in the driving device. The ground of existing screw pump reverse drive control system usually adopts mechanical ratchet and pawl reverse control device, the device has the advantages of simple structure, low cost, convenient operation and maintenance, but in the application found prone to ratchet and pawl meshing failed, releasing reverse torque when the reverse rotation speed is not easy to control, security solution. In view of the above conventional screw pump ground driving safety hidden trouble of equipment exist, it is necessary to study on screw pump well inversion of control technology, in order to realize the safe and reliable operation of the screw pump well.In this paper a kind of screw pump hydraulic reversal braking device of the utility model,studied from its design, development, indoor test and field aspect and so on; and a multiple insurance screw pump reverse control device is studied comprehensively, and the formation of standardized production management device for a screw pump hydraulic reversal brake device for production management specification and a set of multiple insurance screw pump reverse control.Through this paper, we can see that the screw pump hydraulic reversal braking device and multiple insurance screw pump reverse control devices can be used to control the reversal of screw pump, screw pump well safe and reliable operation of the present.