Movable bracket of cantilever beam on platform of drilling for oil

Abstract

This is a kind of cantilever moving bracket of petroleum artesian well platform belonging to petroleum artesian well platform equipment field. This kind of ancon moving bracket of petroleum artesian well platform adopts the square framework structure comprising of four bracket pedestals, two bracket longerons and two crossbeams. The lower part of the four corners of the bracket of the square framework equips sliding trough making the moving bracket have transverse movement on the slideway under bracket, and the upper of which equips the sliding trough making ancon and bracket have lengthways movement together on the slideway. The boring tower is fixed at the rump of ancon. Inside the moving bracket there equips driving device having transverse and lengthways movement, making that moving bracket can conveniently make boring tower exactly locate in the position need artesian. Besides its structure is simple, and its work is dependable. Especially it improves the carrying situation of ancon, enhances the hole-making capability of artesian platform, increases artesian depth, and makes the hole-making efficiency and economy performance ulteriorly improved.

Description

technical field [0001] The invention relates to a movable bracket of a cantilever beam of an oil drilling platform, which belongs to the field of oil drilling platform equipment. Background technique [0002] The jack-up drilling platform is the basic drilling facility for offshore oilfield drilling operations. It consists of the platform's main hull, liftable legs and cantilever beams that can move back and forth on the platform deck. The cantilever beam tail end is equipped with a drilling tower, and when the cantilever beam moves backward and stretches out of the stern of the drilling platform, the drilling tower is outside the stern end of the ship, and the drilling rig is in the working position for drilling operations. When the cantilever beam moves forward so that the drilling tower is partially retracted to the tail end of the hull, the drilling rig is above the deck of the platform, and the platform is in a non-drilling operation state. Therefore, the drilling towe...

AI Technical Summary

Problems solved by technology

The disadvantage of this moving method is: the moving mechanism is divided into upper and lower layers, and the structure is complex; when the drilling tower moves laterally to make the position of the drilling tower deviate from the longitudinal centerline of the cantilever beam, because the cantilever beam bears eccentric load, its bearing capacity decreases, making the sign The hook load on the top of the drilling rig is reduced for the drilling capacity, and the drilling depth is reduced

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