Journal ArticleDOI
Quantitative Study on the Risk Level of Human Factor for Drilling Process
Ai Tao Zhou,Kai Wang,Hong Zhang +2 more
TLDR
In this article, the human factor risk level of major work activities involved in drilling process was calculated, and the total risk value of all main drilling activities is 11.3947 S/w-h.Abstract:
In order to quantifying human factor initial risk level in drilling process, the types of work activities involved in drilling were identified, the major accident risk types of human errors were selected, the probability and severity levels of risks associated with each activity were quantified, and the human factor risk level of major work activities involved in drilling process were calculated. Quantitative results show that the relatively highest risk types during drilling process are struck by object (risk value is 3.9171 S/w-h), injury by machine (risk value is 2.8916 S/w-h), overexertion (risk value is 1.5091 S/w-h), etc. Contrarily, the relatively lowest risk types are exposure to harmful substances or environments (0.7379 S/w-h), fire and explosion (0.2750S/w-h), and othersi0.2261 S/w-h), etc. The relatively highest risk activities are associated with penetration drilling (risk value is 2.7475S/w-h), trip in and out (risk value is 2.0206 S/w-h), and hoisting and lifting operation (risk value is 1.7064 S/w-h), etc. Contrarily, the relatively lowest risk activities are auxiliary operations (risk value is 0.3706S/w-h), well logging and mud logging (risk value is 0.2059 S/w-h), equipment inspection and maintenance (risk value is 0.1510 S/w-h), etc. The total risk value of all main drilling activities is 11.3947 S/w-h.read more
References
More filters
Journal ArticleDOI
Risk management in a dynamic society: a modelling problem
TL;DR: It is argued that risk management must be modelled by cross-disciplinary studies, considering risk management to be a control problem and serving to represent the control structure involving all levels of society for each particular hazard category, and that this requires a system-oriented approach based on functional abstraction rather than structural decomposition.
Journal ArticleDOI
Risk assessment in construction
TL;DR: In this paper, a risk assessor model (RAM) was developed and computerized to determine the risk associated with a particular activity and the justification factor for a proposed remedy, which would help contractors identify the high risk of major construction activities and would enable them to allocate safety precautions in a more efficient manner.
Journal ArticleDOI
Scheduling-based risk estimation and safety planning for construction projects
TL;DR: In this paper, the authors proposed a theory of safety planning method which estimates the risk distribution of a project and helps the safety manager to both estimate situations of concentrated risk and then to reschedule it when it is necessary.
Journal ArticleDOI
Reliability analysis and operator modelling
TL;DR: In this paper, the state of the art in operator modelling in reliability analysis is discussed, and it is argued that second generation HRA methods must recognise that cognition is embedded in a context, and be able to account for that in the way human reliability is analysed and assessed.