Petroleum drilling machine tower-shaped derrick sleeving mounting method

Abstract

The invention discloses a petroleum drilling machine tower-shaped derrick sleeving mounting method. The method includes the steps that 1, a crown block and crown block frame is suspended to a wheeled flat car to be transported to a wellhead center line; 2, fine adjustment is conducted till the centers of ear plate holes of a left longitudinal girder and a right longitudinal girder and the centers of ear plate holes in the crown block and crown block frame are aligned with one another, fixedly connected and move upwards, meanwhile the wheeled flat car is moved to the right side of the wellhead center line, and a derrick upper segment is mounted; 3, the wheeled flat car is moved to the wellhead center line, a beam moves downwards along a left guide stand column and a right guide stand column, and connection lugs between the crown block and crown block frame and the derrick upper segment are connected; 4, fine adjustment is conducted on the beam, the left longitudinal girder and the right longitudinal girder till the centers of the ear plate holes in the left longitudinal girders and the right longitudinal girders and the centers of the ear plate holes in the lower end of the derrick upper segment are aligned with one another, fixedly connected and move upwards, meanwhile the wheeled flat car is moved to the right side of the wellhead center line, and a second derrick segment is mounted; 5, the above steps are repeated till all the other segments of the derrick are installed. According to the method, the derrick is assembled at a low position in a segmented mode, the derrick is gradually lifted after the segments are arranged in a sleeving mode, and the derrick is installed.

Description

technical field [0001] The invention belongs to the technical field of oil drilling tower derrick installation, and relates to an oil drilling rig tower derrick suit installation method. Background technique [0002] The oil drilling rig tower derrick has the advantages of stable structure, large operating space and large bearing capacity (compared with other types of derricks under the same weight of the derrick). Or the components are installed at a high position by pulling rods or cranes. The installation workload is large and the installation time is long. At the same time, because personnel need to work at high positions to perform positioning and bolt fastening of derrick individual parts or components, there is a very large risk of personnel falling. Therefore, tower derrick is mainly used on the offshore drilling platform that does not need to disassemble the derrick frequently at present, and the scope of application is limited. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for installing the tower-shaped derrick package of an oil drilling rig, which solves the problem of unscientific installation of the tower-shaped derrick of the existing oil drilling rig, heavy workload, and long installation time; installation at a high position poses a high risk for the installer

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