Design and Analysis of Telescopic Automatic Wellhead Device for Make-up and Break-out
With the development of well workover operation towards automation,both domestic and foreign countries are committed to the research of automated well workover equipment.Based on the characteristics of automatic workover rig,a telescopic automatic wellhead device for make-up and break-out is designed.In this paper,the main structures of the automatic hydraulic tong and the centralizer are analyzed,the working principle of the device is described systematically,and the anti-slipping conditions between the tong dies and the tubing are calculated.The calculation of the back-up tong clamping hydraulic cylinder is carried out,and the appropriate au-tomatic hydraulic tong and the hydraulic circuit of the whole device are designed to ensure the safety and stability of the device during work.Field test results show that the automatic device can achieve accurate alignment,quickly and smoothly complete make-up and break-out operation,greatly reducing the intensity of work,improve efficiency,and improve worker safety.
make-up and break-out deviceautomated workover righydraulic tubing tonghydraulic systemautomation
NETL
NSTL
万方数据
维普
