Application of snubbing unit for offshore marginal oilfield exploitation

In order to meet the requirement of marginal oilfield exploitation,and to overcome the shortcoming of heavy weight,large operating area and high center of gravity for traditional workover rig.This paper introduces a type of operation equipment without choke and kills(hereafter called as snubbing unit),analyzes its advantages and disadvantages for different applications,and proposes an exploitation solution for the application of Snubbing unit to Bohai bay marginal oilfield.