Availability-Based Elasticity Assessment Method and System for Subsea Production System
A production system and flexible technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of no underwater production system, etc., and achieve the effect of easy evaluation
Active Publication Date: 2018-03-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
However, there is currently no elastic calculation method and system for underwater production systems. Therefore, it is particularly necessary to develop an evaluation method and system for underwater production system elasticity based on availability
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[0019] specific implementation plan
[0020] The elasticity of the underwater production system is defined as the ability of the underwater production system to restore the original function of the system under external shock loads (such as typhoon, tsunami, earthquake); figure 1 As shown, since the initial use, due to the natural degradation of the components of the subsea production system, the system availability has continuously decreased from 100% to stabilize at t 1 At this time, the system availability is A 1 ; at t 2 time, the underwater production system is subjected to external impact loads (such as typhoon, tsunami, earthquake), under this impact load, the system availability immediately drops to A 2 ; Under the redundant spare parts operation of the underwater production system and the maintenance of the operator, the system availability gradually increases, and at t 3 tends to be stable at all times, and the system availability is A 3 .
[0021] like figure...
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The invention belongs to the field of ocean engineering and particularly relates to an availability-based subsea production system elasticity assessment method and system. The availability-based subsea production system elasticity assessment method comprises the five steps of acquiring system stabile time and availability under a non-impact load, defining a priori probability of a system component under an impact load, acquiring an impact load moment and availability, acquiring system stable time and availability after an impact and calculating an elasticity value of a subsea production system. The subsea production system elasticity assessment system comprises a subsea production system data reading unit, a system stabile time and availability calculation unit under the non-impact load, an impact load moment and availability calculation unit, a system stable time and availability calculation unit after the impact, an impact load number input unit and a subsea production system elasticity value calculation unit. The elasticity assessment method is relevant to internal properties of the system and irrelevant to external impact loads and facilitates assessment of the elasticity value.
Description
technical field [0001] The invention belongs to the field of marine engineering, and in particular relates to an availability-based elasticity evaluation method and system for an underwater production system. Background technique [0002] With the rapid development of offshore oil development technology, the scope of modern offshore oil exploration and development has gradually moved from offshore and shallow seas to far seas and deep seas, and its development methods have gradually evolved from offshore platforms to underwater production systems. Compared with offshore platform operations, the underwater production system can not only improve the recovery rate, solve the problems of oil well output processing and transportation, but also be less affected by the sea level environment, especially suitable for deepwater or ultra-deepwater oil and gas development, so Get noticed and thrive. Under the influence of severe weather such as typhoons, tsunamis, and earthquakes, the ...
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IPC IPC(8): G06F17/50
CPCG06F30/20G06F2111/08G06F2119/06
Inventor 蔡宝平刘永红冯强郝科科孔祥地邵筱焱孙秀涛薛海涛王家兴
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)