Hull, Mooring and Riser Concept Selection for Deepwater Field Development in Offshore Northwest Australia

2016 ◽  
Author(s):  
Yongyan Wu ◽  
Roger Lu ◽  
Tao Wang ◽  
Vishnu Vijayaraghavan ◽  
Rolf Eide
Keyword(s):  
Concept Selection ◽  
Field Development ◽  
Selection For ◽  
Northwest Australia

scholarly journals Concept Selection for Hydrocarbon Field Development Planning

Engineering ◽  
2012 ◽  
Vol 04 (11) ◽  
pp. 794-808 ◽  
Author(s):  
J. Efrain Rodriguez-Sanchez ◽  
J. Martin Godoy-Alcantar ◽  
Israel Ramirez-Antonio
Keyword(s):  
Development Planning ◽  
Concept Selection ◽  
Field Development ◽  
Selection For ◽  
Hydrocarbon Field

scholarly journals Evolutionary Algorithm to Support Field Architecture Scenario Screening Automation and Optimization Using Decentralized Subsea Processing Modules

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 184
Author(s):  
Mariana J. C. Díaz Arias ◽  
Allyne M. dos Santos ◽  
Edmary Altamiranda
Keyword(s):  
Thermal Management ◽  
Concept Development ◽  
Test Cases ◽  
Production Network ◽  
Concept Selection ◽  
Genetic Operators ◽  
Number Of Solutions ◽  
Field Development ◽  
Variation Operators ◽  
Selection For

Manual generation of test cases and scenario screening processes, during field architecture concept development, may produce a limited number of solutions that do not necessarily lead to an optimal concept selection. For more complex subsea field architectures, which might include processing modules for enhancing pressure and thermal management for the production network, the number of configuration cases and scenarios to evaluate can be extremely large and time and resource-consuming to handle through conventional manual design processes. This paper explores the use of evolutionary algorithms (EA) to automate case generation, scenario screening, and optimization of decentralized subsea processing modules during field development. An evaluation of various genetic operators and evolution strategies was performed to compare their performance and suitability to the application. Based on the evaluation results, an EA using structural uniform crossover and a gradient plus boundary mutation as the main variation operators was developed. The methodology combines EA and an integrated modeling approach to automate and optimize the concept selection and field architecture design when considering decentralized subsea processing modules.

Riser Concept Selection for FPSO in Deepwater Norwegian Sea: A Case Study

2018 ◽  
Author(s):  
Arvind Keprate ◽  
R. M. Chandima Ratnayake
Keyword(s):  
Literature Review ◽  
Geographical Location ◽  
Weather Conditions ◽  
Large Vessel ◽  
Concept Selection ◽  
Flexible Riser ◽  
Norwegian Sea ◽  
Daunting Task ◽  
Selection For

Selecting a riser concept for FPSOs stationed in deep water has posed challenges, due to the high hydrostatic pressure and large vessel payload. One of the major factors governing the riser concept selection for deepwater FPSOs is the geographical location and weather conditions prevalent in the region. For example, the free hanging flexible riser has been mostly used in the moderate environments of offshore Brazil, while concepts like the SCR and Hybrid Riser Tower (HRT) are dominant in the calm weather conditions of the West of Africa (WoA). Selecting a riser concept for an FPSO stationed in harsh weather conditions like those of the Northern Norwegian Sea is a daunting task. This is due to the large vessel offsets and dynamics, which are directly transferred along the riser’s length to its base, thereby causing considerable fatigue damage to the riser. The main aim of this paper is to recommend a suitable riser concept, which may be hooked to an internal turret moored FPSO stationed in water of 1500m depth and in the harsh environmental conditions of the Northern Norwegian Sea. The recommendations are based on the literature review and the case study performed in the manuscript. On the basis of the literature review, a lazy wave configuration of flexible riser and Steel Lazy Wave Riser (SLWR) has been considered as a viable riser concept. Thereafter, a case study is performed to compare the two riser concepts, on the basis of vessel payload, fabrication cost and installation cost.

Mission concept selection for an asteroid mining mission

2016 ◽  
Vol 88 (3) ◽  
pp. 458-470 ◽  
Author(s):  
Alena Probst ◽  
Graciela González Peytaví ◽  
Bernd Eissfeller ◽  
Roger Förstner
Keyword(s):  
Concept Selection ◽  
Selection For

Offshore concept field development

2015 ◽  
Vol 55 (2) ◽  
pp. 454
Author(s):  
Greg Saunders ◽  
Matthew Poole
Keyword(s):  
Management Strategy ◽  
Selection Process ◽  
Final Solution ◽  
Concept Selection ◽  
Field Development ◽  
Subsequent Investigation ◽  
Design Perspective ◽  
Technical Study ◽  
Development Concept ◽  
Selection Phase

This extended abstract describes the field development concept selection process for Karoon Gas Australia, as part of the appraisal and commercialisation of an oil resource in offshore Brazil. From an engineering design perspective, the concept selection phase offers the greatest opportunity to create project value. Options must be carefully considered before rigorous investigation to provide a firm foundation for key decisions. The concept selection study and option consideration began with a two-day framing and option identification workshop. Nine key decisions were identified as having significant impact on the feasibility and cost of the development. These included the wellhead type, hydrate management strategy, floating production storage and offloading vessel (FPSO) capacity, FPSO location, mooring type, subsea architecture, product export and expansion provisions. Assessment criteria were agreed on for each of the key technical decisions; these were applied in the evaluation of options defined. This workshop facilitated definition and agreement for the technical study scope. The subsequent investigation and selection process focused on the key development decisions that needed to be made immediately, compared to those that could be made at a later stage of the development. These decisions encompassed technical viability, dry trees versus wet trees, flow assurance, mooring type and processing capacity. A geologically complex reservoir drove many elements of the development selection process. This extended abstract highlights that the final solution balances risk management with maximising project value. The recommended base development concept is analogous to many developments already implemented in Brazil and is flexible enough to accommodate a realistic range of outcomes from future appraisal wells.

The Role of Geophysical Uncertainty in Field Development Concept Selection

2013 ◽  
Author(s):  
Daria Krasova ◽  
Sverre Tresselt ◽  
Ivar Meisingset ◽  
Thomas Forde ◽  
Stale Romundstad
Keyword(s):  
Concept Selection ◽  
Field Development ◽  
Development Concept
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