Case Study: First Intelligent Completion System Installed in the Gulf of Mexico

Nielsen, V. B.; Tips, T.R.

doi:10.2118/81928-pa

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…The optimal FCD setting obtained from the base-case model remained fixed in all reservoir realizations. On/off flow control The on/off flow control strategy employs two ICVs that can switch between open and closed (on/off) positions (Jackson-Nielsen and Tips 2003). We opened or closed these ICVs based on interpretations of wellhead water-cut measurements and downhole flow measurements (Fig.…”

Section: Fixed Flow Controlmentioning

confidence: 99%

Insurance Value of Intelligent Well Technology against Reservoir Uncertainty

2008

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Significant challenges remain in the development of optimized control techniques for intelligent wells, particularly with respect to properly incorporating the impact of reservoir uncertainty. Most optimization methods are model-based and are effective only if the model can be used to predict future reservoir behavior with no uncertainty. Recently developed schemes, which update models with data acquired during the optimization process, are computationally very expensive. We suggest that simple reactive control techniques, triggered by permanently installed downhole sensors, can enhance production and mitigate reservoir uncertainty across a range of production scenarios. We assess the implementation of an intelligent horizontal well in a thin oil rim reservoir in the presence of reservoir uncertainty, and evaluate the benefit of using two completions in conjunction with surface and downhole monitoring. Three control strategies are tested. The first is a simple, passive approach using a fixed control device to balance inflow along the well, sized prior to installation. The second and third control strategies are reactive, employing intelligent completions that can be controlled from the surface. The second strategy opens or closes the completions according to well water cut and flow rate and individual downhole rate and phase measurements obtained from a surface multiphase flowmeter and alternating zonal well tests. The third strategy proportionally chokes the completions as increased completion water cut is measured using downhole multiphase flowmeters. A cost-benefit analysis demonstrates that reactive control strategies always yield a neutral or positive return, whereas a passive, model-based strategy can yield negative returns if the reservoir behavior is poorly understood. While reactive control strategies enhance production and mitigate reservoir uncertainty, they may not deliver the optimum possible solution. Proactive control techniques, which additionally incorporate data from downhole reservoir-imaging sensors, may yield nearoptimal gains.

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Section: Fixed Flow Controlmentioning

confidence: 99%

Insurance Value of Intelligent Well Technology against Reservoir Uncertainty

2008

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“…Como destaca Nielsen & Tips (2002), dependendo das características do reservatório, pode ser suficiente a instalação de um modelo convencional.…”

Section: Completação Convencionalunclassified

Valor Da Completação Inteligente Na Conversão De Poços Através Do Uso De Opções Reais

CHAGASTELLES¹

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Closed-loop Feedback Control for Production Optimization of Intelligent Wells under Uncertainty

Dilib

Jackson

2012

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Declaration of Originality I declare that this thesis, Closed-loop Feedback Control of Intelligent Wells under Uncertainty, is entirely my own work under the supervision of Prof. Matthew D. Jackson. The work was performed in the Department of Earth Science and Engineering at Imperial College London. All published and unpublished material used in the thesis has been given full acknowledgment. This work has not been previously submitted, in whole or in part, to any other academic institution for a degree, diploma, or any other qualification.

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Case Study: First Intelligent Completion System Installed in the Gulf of Mexico

Cited by 4 publications

References 6 publications

Insurance Value of Intelligent Well Technology against Reservoir Uncertainty

Insurance Value of Intelligent Well Technology against Reservoir Uncertainty

Valor Da Completação Inteligente Na Conversão De Poços Através Do Uso De Opções Reais

Closed-loop Feedback Control for Production Optimization of Intelligent Wells under Uncertainty

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