Reservoir Study Considering a TLP and Dry-Completion Development for a Deep 
Offshore Heavy Oil Field

Branco, Celso Cesar M.; Santos, Renato Luiz; Peres, Alvaro; Prais, Fabio; Pinto, Iubatan Antonino

doi:10.2523/94863-ms

Proceedings of SPE Latin American and Caribbean Petroleum Engineering Conference 2005

DOI: 10.2523/94863-ms

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Reservoir Study Considering a TLP and Dry-Completion Development for a Deep Offshore Heavy Oil Field

Celso Cesar M. Branco¹,

Renato Luiz Santos²,

Alvaro Peres³

et al.

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435.

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The Challenges of Developing a Deep Offshore Heavy-Oil Field in Campos Basin

Junior

Branco

Prais

et al. 2007

Latin American &Amp; Caribbean Petroleum Engineering Conference

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fax 01-972-952-9435. AbstractDeep offshore oil production demands very high investments (CAPEX) so its development must rely on a careful planning. This frequently takes place in a setting with very limited amount of information due to high costs of appraisal operations. The figure becomes even more complicated when heavy oils are the target: low energy reservoirs require water flooding which, in turn, reflects in low recoveries and excessive water handling, not to mention other production problems.This paper highlights different simulation studies that have been performed in order to set up an economical development plan for a 16 API 1700m water depth oil reservoir offshore Campos Basin. The main reservoir consists of a high thickness turbidite channel crossed by a N-S fault whose hydraulic conductivity is the main uncertainty. Vertically the reservoir is composed of three zones, where the upper one has a gas cap partially in contact with the two bottom ones. These structural complexities required a detailed study for positioning injectors and horizontal producers based on a decision tree analysis.

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The Challenges of Developing a Deep Offshore Heavy-Oil Field in Campos Basin

Junior

Branco

Prais

et al. 2007

Latin American &Amp; Caribbean Petroleum Engineering Conference

View full text Add to dashboard Cite

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Novel Ways of Parameterizing the History Matching Problem

Silva

Rodrigues

Paraizo

et al. 2005

SPE Latin American and Caribbean Petroleum Engineering Conference

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∑ = − = Nobs i obs i sim i i d m d w m O 1 2 ) ( ) ( TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractOne of the challenges when making a history match study is to find an adequate parameterization for the reservoir model. The main assumptions of the geological characterization should be respect and the influence of parameters on the fluid flow simulation results should be taken into account. On the other hand, the number of parameters should be kept within reasonable bounds in order to make the process viable. In this work, three examples of novel ways to parameterize the history match problem will be shown. Two of them are real field cases and one is a synthetic case based on outcrop data. Common to all examples is the choice of parameters that are related to the geological model building process, such as the variogram in a geostatiscal modeling or correlations between petrophysical properties (permeability x porosity, for instance). In this context, the use of a versatile history matching tool was essential, allowing for a quantitative evaluation for the quality of the match and for managing a larger number of parameters, when comparing to the traditional trial and error procedure. These examples show how the combination of a suitable parameterization with a versatile assisted history matching tool can improve both the quality and the efficiency of the history matching process.

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Reservoir Study Considering a TLP and Dry-Completion Development for a Deep Offshore Heavy Oil Field

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435.

Cited by 2 publications

References 1 publication

The Challenges of Developing a Deep Offshore Heavy-Oil Field in Campos Basin

The Challenges of Developing a Deep Offshore Heavy-Oil Field in Campos Basin

Novel Ways of Parameterizing the History Matching Problem

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