scholarly journals Validation of Dynamic Risk Analysis Supporting Integrated Operations Across Systems

2019 ◽  
Vol 11 (23) ◽  
pp. 6745 ◽  
Author(s):  
Shenae Lee ◽  
Gabriele Landucci ◽  
Genserik Reniers ◽  
Nicola Paltrinieri

Dynamic risk analysis (DRA) is a novel industrial approach that aims to capture changes in operational conditions over time and quantify their effect on risk. This aspect may be advantageous for providing insight into the causal factors that have substantial risk contributions and supporting decisions related to risk control. Some DRA methods were developed by the oil and gas industry to support the integration of work processes and the cooperation across virtual clusters, e.g., between offshore and onshore systems and/or oil company and supplier. However, DRA has not been extensively adopted and limited attention is given to its validity in practical applications. The objective of this article is to illustrate how this validity can be established based on common validation approaches for risk analysis. The case study focuses on a DRA method named risk barometer that was developed to support integrated operations across the oil and gas industrial systems. The outcome of this study may serve as a basis for the validation of other DRA methods, the use of DRA in practical cases, and ultimately the achievement of integrated operations (IO) capabilities.

Author(s):  
John Henderson ◽  
Vidar Hepsø ◽  
Øyvind Mydland

The concept of a capability platform can be used to argue how firms engage networked relationships to embed learning/performance into distinctive practices rather than focusing only on technology. In fact the capability language allows us to unpack the role of technology by emphasizing its interaction with people, process, and governance issues. The authors address the importance of a capability approach for Integrated Operations and how it can improve understanding of how people, process, technology, and governance issues are connected and managed to create scalable and sustainable practices. The chapter describes the development of capabilities as something that is happening within an ecology. Using ecology as a metaphor acknowledges that there is a limit to how far it is possible to go to understand organizations and the development of capabilities in the oil and gas industry as traditional hierarchies and stable markets. The new challenge that has emerged with integrated operations is the need for virtual, increasingly global, and network based models of work. The authors couple the ecology approach with a capability platform approach.


Author(s):  
Grethe O. Ose ◽  
Trygve J. Steiro

Abstract Integrated operations (IO) is an ongoing change process in the oil and gas industry. New technological opportunities enable working in new ways that involve an integration of onshore and offshore personnel. This paper analyzes the results of two rounds of data gathering in an onshore drilling support center, in terms of the development of resilience. The first round took place in 2004/2005 and the second in 2012. This study presents a framework for the analysis of resilience and has used the case company as a mean of testing the framework. Our findings indicate that the support center has taken a huge step in the direction of becoming more resilient. The drilling company has tested a number of designs and sizes of support centers, each of which has different pros and cons. For the drilling discipline to develop resilience, it is essential that the number of rigs supported by a center is not too large, as they must not become involved in too many rigs and drilling operations. Our findings also indicate that the suggested framework provides a good overall picture of the development of resilience in the case company.


2018 ◽  
Vol 27 (1) ◽  
pp. 35-49 ◽  
Author(s):  
A. V. Matveev ◽  
◽  
A. V. Maksimov ◽  
O. V. Shcherbakov ◽  
A. S. Smirnov ◽  
...  

2017 ◽  
Vol 6 (1) ◽  
pp. 101-122 ◽  
Author(s):  
Tatyana Plaksina ◽  
Eduardo Gildin

Applications of stochastic evolutionary algorithms in engineering are gaining more attention in practical applications in the oil and gas industry. An important factor to consider when implementing stochastic algorithms is its ability to find the global optimum efficiently. In this study the authors formulate, implement, and test a genetic algorithm with strong elitism to solve a critical problem in the upstream oil industry: how to develop economically an unconventional gas asset. This problem involves finding the optimal number of horizontal wells, the number of transverse hydraulic fracture stages along them, and stage half-length. The described problem is inherently discrete or mixed optimization problem for which the authors develop a conceptually new evolutionary integrated framework that addresses all production design questions. They outline the range of applicability of their workflow and provide ample test cases and results. Their rigorous formulation performs well for a given problem statement and finds the optimal solution that is consistent with the industry accepted optimum.


Beta ◽  
2012 ◽  
Vol 26 (01) ◽  
pp. 40-62
Author(s):  
Tom Rosendahl ◽  
Asbjørn Egir ◽  
Lars Kristian Due-Sørensen ◽  
Hans Jørgen Ulsund

2014 ◽  
Author(s):  
Alessio Pistidda ◽  
Harald Ottens

Vessels equipped with a moonpool are frequently used in the offshore oil and gas industry. They are used to lay pipelines, risers, structures, cables, and for drilling. These operations are generally possible if the water motion inside the moonpool remains within workable limits. Water oscillations are generated by waves and forward speed. The water motion in the moonpool is characterized by two dominant modes, sloshing and pumping. Both modes are usually present during sailing, while during installation phase, where the vessel is kept in a fixed position, the pumping mode is dominant and sloshing is negligible. The behavior of the water column in the moonpool can either be predicted numerically (CFD and potential code) or by model tests. In this work we focus on modeling the behavior of the DCV Aegir moonpool in operational conditions via CFD. The work presented in this paper consist on the validation of the available experimental results. Results show that CFD is an adequate tool to predict the pumping mode of the water inside the moonpool and outperforms predictions of potential codes.


Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 117
Author(s):  
Christopher Tom Engler ◽  
Helmuth Sarmiento Klapper ◽  
Matthias Oechsner

Due to the challenging operational conditions occurring during drilling, e.g., in the oil and gas industry, the corrosion fatigue (CF) behavior of materials used in drillstring components needs to be well understood. The combination of cyclic mechanic loads and a corrosive environment can affect significantly the integrity of a material, which has to be taken into account when selecting and qualifying materials for drilling equipment. Nickel alloys such as the precipitation-hardenable alloy 718 (UNS N07718) are widely used in many industrial applications including subterranean drilling. In the present study, the fatigue and CF behavior of alloy 718 in three different metallurgical conditions was investigated. The CF behavior of the different conditions was determined using customized rotating bending machines enabling testing in a simulated drilling environment at 125 °C. Results have shown that the fatigue and CF strength of alloy 718 is affected by its microstructural particularities, for instance, the amount of strengthening phases and δ-phase.


Author(s):  
Grethe Osborg Ose ◽  
Trygve J. Steiro

The introduction of Integrated Operations (IO) in the offshore oil and gas industry makes distanced and distributed decision-making a growing part of normal work. Some functions have been transferred from offshore installations to onshore offices as a consequence of the technologies that have recently become available. The authors analyze whether the onshore organization is ready for increased responsibilities by increasing the resilience in its work patterns, since resilience is important for maintaining or increasing safety level compared to current operation, where personnel on board installations can observe the plant at first hand. This study has been performed as a case study of an onshore Support Center in a drilling company at the start of the process of using the Support Center. The establishment of the Support Center involved re-arranging the office arrangements to an open landscape for all offshore installation support personnel and grouping them according to disciplines. They also acquired new technology, including video conference equipment. Important findings are that developing resilience has to be followed through at all levels of the organization. Time and resources have to be made available when work practices change, providing the physical framework alone does not improve resilience. The study also offers a more detailed description of capability resilience and which aspects should be considered when developing resilience. The authors look at the status so far in the change process and also find areas that should be developed in order to increase resilience further.


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