Development of the Full Hydraulic Slant Straight Well Workover Rig for Shallow Heavy Oil Exploitation
Currently,the technology of slant straight well workover rigs used in shallow heavy oil production in domestic oilfields is relatively outdated and cannot meet on-site operational require-ments.This paper proposes a design scheme and technical parameters for a fully hydraulic slant straight well workover rig.A detailed design explanation was provided for the main components and systems of the workover rig,such as hydraulic system,moving elevator,pipe grabbing ma-chine,adjustable base,bracket,pipe receiving and sending device,oil pipe centering and column buckle or shackle device,etc.The fully hydraulic slant straight well workover rig has been in tri-al production and field application for over a year.The results indicate that its structural design is reasonable,safe,and reliable,reducing the number of operators and significantly decreasing their labor intensity.
slant straight well workoverfully hydraulic workover rigmoving elevatorpipe col-umn buckle or shackletubing transportation
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