Method for quantitative evaluation of explosion accident consequence of marine oil and gas platform

Abstract

The invention discloses a method for quantitative evaluation of an explosion accident consequence of a marine oil and gas platform. Dangerous source identification, explosion probability calculation, geometric model establishment, wind regime determination, leakage unit division, leakage position determination, leakage rate calculation, and leakage time calculation are carried out successively; and then accident simulation and consequence analysis are carried out and quantitative simulation is carried out on an explosion accident of a marine oil and gas platform, so that the accident risk can be reduced effectively and the data support can be provided. The method has the following beneficial effects: with reference from of theoretical researches and practical experience of marine oil and gas exploitation risk analyses at home and abroad, key techniques suitable for the heavy accident risk analysis and accident simulation of the marine platform are studied by considering the current risk situation of the Shengli shallow-sea platform and thus an explosion accident quantitative simulation analysis method of the national marine environment is provided, thereby providing the safety technique support for the continuous and stable marine oil and gas production and enabling the marine oil and gas development to become safe and economic in future.

Description

technical field [0001] The invention relates to the field of safe production in the petroleum industry, in particular to a quantitative evaluation method for consequences of explosion accidents on offshore oil and gas platforms. Background technique [0002] With the development of human society, the global demand for oil and gas has increased sharply. Onshore oil and gas fields have entered a stage of high water content and low production capacity. Onshore oil and gas resources are becoming increasingly exhausted. At the same time, our development and utilization of offshore oil and gas resources is still very limited. In order to ensure social development, the development focus of oil and gas resources on a global scale has begun to shift to the ocean. [0003] my country began to rely on foreign oil in 1993. In 1996, the dependence on foreign oil increased rapidly to 11.1%, in 2002 it expanded to 32.9%, in 2009 it exceeded 50%, reaching 51.2%, and in 2015 it reached 60.6%...

AI Technical Summary

Problems solved by technology

Compared with the relevant international progress, the risk assessment in the field of offshore oil engineering in my country is still in its infancy, and most of the current applications remain in the qualitative risk assessment. At the same time, there is still skepticism similar to the British risk quantitative assessment technology before the PiperAlpha disaster in China. The trend of thought has led to the failure of my country's quantitative evaluation technology to develop as it should in the field of offshore oil engineering

[0007] In recent years, with the increase in the scale and speed of offshore exploration and development in my country, a large number of new technologies and new equipment have been put into use, and it is necessary to analyze their impact on oil and gas development risks; A large number of potential safety hazards have been exposed (such as unreasonable equipment design, equipment aging and unreasonable layout of fire hazards, blowout hazards, etc.), increasing the risk of offshore oil and gas development

However, due to the fact that the risk assessment of marine structures in my country started late and is not systematic, a general risk assessment technology for marine structures has not yet been formed, and my country's offshore oil and gas development is facing a severe security situation. Developed risk analysis work

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