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A method for weighing the cantilever beam of jack-up drilling platform

A drilling platform and cantilever beam technology is applied in the field of cantilever beam weighing of self-elevating drilling platforms, and can solve problems such as large influence of environmental conditions and deviation of calculation results.

Active Publication Date: 2015-08-05
CHINA MERCHANTS HEAVY IND JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that this method needs to do a lot of structural reinforcement under the main deck under the right rail, and integrate the main deck with the bottom structure to prevent the main deck from being damaged
Its disadvantages are: this method divides the weighing into two parts, which cannot be completed at one time as a whole, and the weighing process is greatly affected by environmental conditions, for example, the influence of wind speed will cause large deviations in the calculation results

Method used

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  • A method for weighing the cantilever beam of jack-up drilling platform
  • A method for weighing the cantilever beam of jack-up drilling platform
  • A method for weighing the cantilever beam of jack-up drilling platform

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] A method for weighing a cantilever beam of a jack-up drilling platform, comprising the following steps:

[0039] 1) When the platform is piled next to the wharf, the stern cover plate faces the wharf, and the distance between the stern cover plate and the edge of the wharf must be less than the maximum sliding length of the cantilever beam 1;

[0040] 2) Determine the positions A and D of the two weighing points on the wharf gantry track by marking, which are respectively below the two longitudinal tracks of the cantilever beam, and set up a three-story box girder structure 3 to fully disperse the load of the wharf; at the same time Set four weighing points B, C, E, F at the transverse bulkhead structure of the main deck 5 under the cantilever beam track, as shown in Figure 1;

[0041] 3) Measure the actual distance between the stern seal plate of the hull an...

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Abstract

The invention relates to a method for weighing a self-elevating drilling platform cantilever beam. The method comprises the following steps of setting two weighing points on a wharf, and designing a special weighing bearing base. The major weight of the cantilever beam is borne by the foundation which is adjacent to the wharf, so that the load on a main deck is reduced, the cantilever beam can be integrally weighed in one step, the structure below the main deck does not need to be reinforced, a great amount of structural reinforcing work and paint damage can be avoided, and the cantilever beam can be precisely and safely weighed.

Description

technical field [0001] The invention relates to the technical field of marine engineering drilling platform construction, in particular to a method for weighing a cantilever beam of a self-elevating drilling platform. Background technique [0002] The purpose of weighing the cantilever beam is to determine its weight and center of gravity, and then use it as a counterweight for the tilt test of the drilling platform. The weight of the counterweight and the accuracy of the center of gravity will directly affect the success or failure of the tilt test, so a reliable weighing method is required to obtain accurate weight and center of gravity parameters of the cantilever beam. [0003] The weighing operation needs to be completed after the cantilever beam is manufactured and installed on the main deck, and several hydraulic jacks are installed under the left and right side rails of the cantilever beam. The readings of a load cell are used to obtain the weight and center of grav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/00
Inventor 刘建成谭柱荣张卫代文涛
Owner CHINA MERCHANTS HEAVY IND JIANGSU