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Windstorm atlas calculation program of 450 feet self-elevating drilling platform

A drilling platform and calculation program technology, applied in the field of storm map calculation program of 450-foot jack-up drilling platform, can solve the problem that it is difficult to make a relatively accurate estimate of the platform's operating capacity, so as to reduce the workload and reduce the running time Effect

Inactive Publication Date: 2017-01-04
LIAONING PETROLEUM EQUIP INST
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AI Technical Summary

Problems solved by technology

[0003] Considering that wave and current loads, hydrodynamic amplification, P-delta effect, and pile leg buckling check are all nonlinear factors, it is difficult for operators to make a relatively accurate estimate of the platform's use capability

Method used

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  • Windstorm atlas calculation program of 450 feet self-elevating drilling platform

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Experimental program
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Embodiment Construction

[0016] Vwind m / s 36 45 51.44 　 　 　 T s 14.5 15 15.5 16 　 　 H m 16.5 17 17.5 18 18.5 19 Vc1 m / s 0.5 0.77 0.9 1.02 　 　 Vc2 m / s 0 0.3 0.5 　 　 　 Depth1 m 15 137.16 　 　 　 　

[0017] The program combines all the above environmental parameters, involving wind speed Vwind, wave period T, wave height H, surface flow velocity Vc1, minimum flow velocity Vc2, and flow existence range Depth1. Various combinations are represented by a parameter m.

[0018] After setting the initial value and end value of m in iSIGHT, the above environmental parameter combination conditions can be run in sequence.

[0019] The calculation of a working condition consists of 1-Simcode0 five directions × thirty-six phase wave load calculation, 2-Calculation0 five directions minimum wave load, 3-Excel1 five directions DAF force calculation, 4-Simcode1 Displacement calculation at the center of gravity of the ship considering wind, sea, cu...

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Abstract

The invention relates to a windstorm atlas calculation program of a 450 feet self-elevating drilling platform. The windstorm atlas calculation program is composed of 1-SESAM software, 2-iSIGHT software and 3-EXCEL software. The SESAM software calculates a wave current load and a finite element; the iSIGHT software reads calculation results of the wave current load and the finite element in EXCELL from the SESAM software, and carries out sensitivity analysis on wind, wave, stream and other variables; and the EXCEL software regulates and checks the calculation results of the wave current load and the finite element, and meanwhile connects the calculation software and steps via Visual Basic Application (hereinafter referred to as VBA). The windstorm atlas calculation program provided by the invention evaluates the safety performance of a variety of environmental parameters, such as wind, wave, stream and water depth of the self-elevating drilling platform to realize the automatic work of repeated iterations and checks of designers of the self-elevating drilling platform, and thus the workload is reduced.

Description

technical field [0001] The patent of the present invention relates to the calculation program of the storm map of the 450-foot jack-up drilling platform, which is used for the safety performance evaluation of the 450-foot jack-up drilling platform for the combination of various environmental parameters such as wind, wave, current, water depth, etc., and guides the safety measures of the platform. formulate. Background technique [0002] The storm self-sustaining safety evaluation of the existing jack-up drilling platform is the safety performance evaluation of typical working conditions under typical environmental conditions provided by the designer. Evaluation based on typical data is relatively simple and has a high safety factor, but in other words, this method is conservative and fails to fully utilize the drilling capacity of the platform. [0003] Considering that the wave load, hydrodynamic amplification, P-delta effect and pile leg buckling check are all nonlinear f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44
Inventor 岳兴华戴克文冷德来王嘉波魏铭邵智民
Owner LIAONING PETROLEUM EQUIP INST