The Design And Research Of Self-elevating Drilling Unit On Jacking System

After land and oil development to a certain extent,various countries and large oil companies have focused on oil exploration on offshore oil development,which requires offshore oil extraction equipment to meet the various conditions of offshore drilling conditions.In offshore oil extraction,the jack-up drilling platform is welcomed by the major oil companies with its relatively inexpensive price,good equipment stability and flexibility.This paper is also carried out under the premise of the old jack-up drilling platform lift system design and transformation,combined with the actual situation of the scene,designed to meet the current jack-up drilling platform lift system.The lifting of the foundation has been completed through the structural design and accuracy calculation,the installation of transition plate and eccentric flange,so that it can match the newly selected lifting motor reasonable to complete the design of the lifting system.Through the stress analysis of the platform under the condition of variable weight and variable load,the load of the platform under the variable wind load condition and the force analysis of each leg under the common load of the platform and the variable wind load The force of the pile and the rack of the force analysis and finite element calculation to ensure that the gears,racks of the rationality of the force to meet the design requirements.The reasonable design of the gears and racks is the key to the normal operation of the entire drilling platform lifting system.At present,the self-elevating drilling platform with independent intellectual property rights-CP300-1 #,listed the lifting system,from another point of view also proved the reliability of the proposed lifting system.