Parque das Conchas (BC-10) - Delivery of Deepwater Extended Reach Wells in a Low Fracture Gradient Setting

Bode, Wouter; Kenworthy, A.

doi:10.4043/20608-ms

Cited by 4 publications

(2 citation statements)

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“…In order to meet practical deadlines, we selected one realization to detail. Improved Oil Recovery (IOR) measures come in many forms, but a summary of recent work commissioned by the US government and the non-profit industry group RPSEA (Research Partnership to Secure Energy for America) highlights the most relevant processes for increasing ultimate recovery in the deepwater Gulf of Mexico (DW GoM) as infill wells, fluid injection, AL, and selective completions (Lach and Longmuir 2010). Also, the work recognizes that DW GoM development typically progresses in phases (e.g.…”

Section: Forecast Study Frameworkmentioning

confidence: 99%

Coupled Surface/Subsurface Simulation of an Offshore K2 Field

Dobbs¹,

Browning²,

Killough

et al. 2011

All Days

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Modern simulation capabilities were recently applied to the K2 Field to help define a risk-reducing phased development. This integrated study relied heavily on new advances to handle complex fluid behavior, derive a history match, resolve future behavior of sub-sea wells, and seamlessly review economic metrics.Simulations used tightly-coupled surface and subsurface calculations to capture and stabilize the interaction of surface facilities with the reservoir. This robust and rigorous approach improves upon previously reported techniques in which subsurface flow calculations are only loosely coupled to the surface network. Fluid characterization involved a single equation of state with multiple distributed component sets in reservoirs and compositional mixing within the surface network. Super-critical initialization was used to represent an unusual compositional transition from a highly undersaturated oil rim to an undersaturated gas cap. History match parameters included reservoir, facilities, and well properties.A host of development options involving artificial lift (AL), additional wells, miscible gas injection, and water injection was evaluated for economic value through an optimization-under-uncertainty approach. This assessment guided a multidisciplinary project team to detail a short set of developments for highest consideration in a common situation where the complex interactions among the reservoir, wells, outflow network, and facilities, makes an intuitive solution inaccessible. Although the four geologic models used were considered adequately diverse for the study, further value lies in broadening the geological uncertainty and hence the range of possible outcomes.While a relatively new application in deepwater fields, AL is recognized as a technology to extend producing life for mature fields and enable production from challenging plays such as the Gulf of Mexico lower Tertiary. Few case studies addressing such situations are available. The presented workflow may be repeated on assets with significant outflow performance drivers -assets that would benefit from modeling and resolution of complex surface/subsurface interactions.

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Section: Forecast Study Frameworkmentioning

confidence: 99%

Coupled Surface/Subsurface Simulation of an Offshore K2 Field

Dobbs¹,

Browning²,

Killough

et al. 2011

All Days

View full text Add to dashboard Cite

show abstract

“…The field is operated by Shell with a 50% equity share, with Joint Venture partners ONGC 27% and Qatar Petroleum International 23%. See references [1][2][3] for more details. The Ostra accumulation is located on top of a salt dome and the trap is formed by a complex faulted four-way dip closure.…”

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confidence: 99%

Forward Process-Based Modeling of Submarine Turbiditic Environment: BC-10 OSTRA Case Study

Ferrandis

Cantelli

Jiménez

2015

Day 4 Wed, December 09, 2015

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Some of the current methods of geological modeling cannot imitate the order and complexity that is observed in nature. It's been recognized among the geoscientist community how a process-based modelling may facilitate a step change in reservoir building capabilities. The advantage in decoupling the grid design from the facies distribution poses a tremendous opportunity to close the gap between the static and dynamic reservoir model. A major advantage is capturing fine-scale heterogeneities (shale drape, amalgamation, etc) which are hard to capture with pixel-based techniques. The goal of process-based geological modeling is to simulate that order by generating rules. These rules make possible to create high-fidelity 3D geological models representing more realistic depositional and stratigraphic events than those that are randomly generated using conventional geostatistical techniques.In this paper we illustrate the use of surface-based modeling within a submarine-turbiditic environment and the procedure followed to deliver a dynamic model conditioned to production data. The procedure follows development of physics-based methods and rule-base stacking of events to reconcile geological complexities and uncertainties with well performance. We'll present a process combining Design of Experiments and gradient-based techniques to assimilate production data. The method generates complex geometries comparable to those observed in high resolution near-surface seismic datasets. The case under consideration is an oil field offshore Brazil developed with horizontal wells and state of the art surveillance. The proposed workflow has delivered a simulation model that has achieved a good history match to production data in the form of water cuts and pressures.

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The Development of Subsea Boosting Capabilities for Deepwater Perdido and BC-10 Assets

Gilyard

Brookbank

2010

SPE Annual Technical Conference and Exhibition

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Significant advancements in deepwater subsea boosting technology, operations, and surveillance are represented by two Shell world-class developments: Perdido in the Gulf of Mexico (that will begin production in 2010) and BC-10 offshore Brazil (on stream since July 2009). These novel projects continue the long tradition of Shell's leadership in the challenging deepwater environment by development and application of a novel seafloor boosting system. The subsea boosting system utilized by both the Perdido and BC-10 assets for increased ultimate recovery and higher production rates is based on the application of electric submersible pumps (ESP) located in a shallow seafloor caisson. These caissons collect production fluids from the manifolded subsea wells and prevent significant loss of ESP performance due to excessive gas production by passive liquid/gas separation.Extensive testing and qualification of the subsea boosting system was undertaken prior to final configuration selection including construction of the world's only 1500-hp ESP test facility capable of controlling multi-phase fluid viscosities and temperatures. A comprehensive suite of tests was performed in conjunction with Baker Hughes Centrilift replicating the expected conditions and performance requirements for both deepwater assets. This paper describes the subsea boosting system maturity process, and discusses the current status of each development and related key learnings.

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Parque das Conchas (BC-10) - Delivery of Deepwater Extended Reach Wells in a Low Fracture Gradient Setting

Cited by 4 publications

References 0 publications

Coupled Surface/Subsurface Simulation of an Offshore K2 Field

Coupled Surface/Subsurface Simulation of an Offshore K2 Field

Forward Process-Based Modeling of Submarine Turbiditic Environment: BC-10 OSTRA Case Study

The Development of Subsea Boosting Capabilities for Deepwater Perdido and BC-10 Assets

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