Jack-up drilling rig manufacturing tooling and manufacturing method

Abstract

The invention relates to a self-elevating drilling platform manufacturing tool and a manufacturing method. The production tool has a platform body, and the bottom surface of the platform body is welded with six ear seats arranged in three rows and two rows according to the size of the welding position of the six upper columns of the jack-up drilling platform on the platform. The connecting holes of each ear seat are The overall machining is performed by installing the platform body on the machine tool. When the jack-up drilling platform is manufactured, the manufacturing tooling is supported by brackets, and the manufacturing tooling is respectively hinged to the upper and lower columns. After adjusting the level of the reference level of the manufacturing tooling, the characteristics of gravity are used to ensure the perpendicularity of the axis of each column to the reference level. The six upper columns and the six lower columns are respectively spot-welded by a plurality of tie bars to form the upper and lower column rigid bodies, and the upper and lower column rigid bodies are respectively welded with the platform and the bottom plate to form the platform body and the base. The self-elevating drill floor produced by the application of the invention has strong bearing capacity, good rigidity and free lifting, and the production method of the invention has the advantages of high working efficiency and low production cost.

Description

technical field [0001] The invention relates to the manufacturing technology of large-scale structural parts of petroleum machinery and equipment, in particular to a jack-up drilling platform manufacturing tool and a manufacturing method. Background technique [0002] Oil skid rig self-elevating drilling rigs have two structures: rotary type and telescopic type. They are large structural parts, and the size can generally reach 6m×3m×6m (length×width×height), which can bear drilling working load and self-weight load. Both the rotary drill floor and the telescopic drill floor are connected by the platform body and the base. figure 1 , figure 2 , image 3 Shown is a schematic diagram of the structure of the rotary drilling platform. figure 1 It is a schematic diagram of the rotary-elevating drilling floor when it is in a low position, and it is in a non-working state. The low position of the platform is for the convenience of transportation. figure 2 It is a schematic dia...

AI Technical Summary

Problems solved by technology

The disadvantages of the above process method are: ①When the upper column and the platform are assembled and welded, the verticality between each upper column and the base level of the platform is only controlled by some simple tools such as a square and a spirit level, relying on visual inspection and feeling. The included angle of the platform is not equal to 90, so that the verticality cannot meet the requirements, so that the parallelism between the upper columns cannot meet the requirements, which affects the bearing capacity and rigidity of the entire drilling floor; similarly, the welding of the lower columns and the bottom plate There are also the above problems

②The connecting holes of lugs are integrally processed on large-scale special-purpose machine tools. For single-piece processing of large structural parts such as table body and base, there are many aspects such as turnover transportation, installation, alignment, adjustment, and processing difficulty. Disadvantages of long cycle, occupying more production resources, high production cost, and poor economy

The disadvantages of the above process method are: ① When the upper column and the platform are assembled and welded, the verticality between each upper column and the platform reference horizontal plane can only be controlled by some simple tools such as a square and a spirit level, relying on visual inspection and feeling. The verticality between the axis of the upper column and the reference horizontal plane and the parallelism between the upper columns cannot meet the requirements when the upper column and the platform are assembled and welded, which affects the bearing capacity and rigidity of the entire drilling platform; Difficulty stretching between the lower columns

②The process of adjusting the coaxiality and fixing the upper column in the lower column is time-consuming and labor-intensive, and the work efficiency is very low

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