What is the Impact of Fracture Modelling on Reservoir Performances and 
Reservoir Simulation: Examples

Maux, Thierry Le; Fonta, Olivier; Sarda, S.; godail, loic

doi:10.2523/97383-ms

Cited by 2 publications

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“…The integration of borehole imaging and fracture related 3D seismic geometric attributes improves the characterization of fractures. The fractured reservoir characterization is highly dependent upon the integration of all available static and dynamic data that potentially explain fractures (Ozkaya and Richard, [12]; Maux et al, [8]; Gouth et al, [5]; Garcia et al, [4]). …”

Section: Introductionmentioning

confidence: 98%

Integrated Fractured Reservoir Characterization and Connectivity Study in the Cantarell Field

et al. 2010

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This paper presents a multidisciplinary and integrated approach that can be used for understanding the connectivity and conductivity in fractured reservoirs. A case study from a carbonate reservoir in the Cantarell field in Mexico will be used to illustrate this approach. The fracture model is constructed by using seismic volumetric curvature attribute. The characterization of 3D fracture model is made with borehole images and fracture seismic classification analysis, which help to identify the two main scales and three sets of fractures in the reservoir. Fracture networks made by long size fracture corridors are assumed to be imposed on the small size diffuse fracture density fields. The 3D fracture model by integrating reservoir engineering data, including mud losses during drilling, flow meter data, transient well test analysis and water production data, resulted in the calibration of effective hydraulic conductivity for each fracture type. Based on the 3D fracture model, the hierarchical modeling concept is taken into account in effective permeability tensor computation. Matrix and fracture parameters including fracture density, length, aperture and orientation are calibrated and used to generate 3D fracture-permeability models for the reservoirs. An effective permeability model on a directional fracture-set base is developed to quantify the reservoir conductivity. In this paper, case studies are used to illustrate applications of these technologies and their efficiency in interpreting unexpected field production features such as early breakthroughs and better understanding the controls on the oil recovery.

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Section: Introductionmentioning

confidence: 98%

Integrated Fractured Reservoir Characterization and Connectivity Study in the Cantarell Field

et al. 2010

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“…However, all these conditions are difficult to meet. In practice, fractured reservoir characterization is highly dependent upon the integration of all available static and dynamic data that potentially explains fractures (Maux et al, [12]; Gouth et al, [9]; Garcia et al, [8]). …”

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confidence: 98%

Characterization and Modeling Study of the Carbonate-Fractured Reservoir in the Cantarell Field, Mexico

et al. 2008

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An integrated fracture characterization and modeling study has been performed on a large reservoir, Cantarell field, Mexico. This paper presents the methodology used for analyzing and integrating multi disciplinary datasets in order to identify main types of fractures, to predict their distributions in the reservoirs and to determine the hydraulic properties of different fracture sets. There are three sets of conductive fractures interpreted from FMI data with the consideration of reservoir geomechanics, which strike in 0 o~5 0 o , 80 o~1 20 o and 140 o~1 80 o . For each set of fractures, two scale fractures are focused: large scale fractures (sub-seismic faults and fracture corridors) and small scale fractures. 3D seismic volumetric attributes, describing reservoir coherence, dip, azimuth and lineaments, are used for the seismic facies analysis. An integrated interpretation of the facies and attribute characters, along with the geological studies, leads to quantifying and ranking fracture contents. The large scale fractures are modeled based on the structural lineaments from the ranked facies. For small size fractures, the 3D statistic fracture model is generated by a sequential Gaussian simulation technique with FMI logs and constrained with ranked facies and maximum curvatures. A 3D stochastic fracture model is then generated incorporating the two scale fractures. Correlation with flow profiles, lost circulation, water breakthrough and product index is studied in order to qualitatively determine the fluid conductivity of modeled large scale fractures. A strategy is proposed to combine two scale fractures to produce the 3D fracture property model of the reservoir. The well test analysis is used to calibrate the fracture permeability quantitatively and help to understand the main flow mechanisms occurring in the reservoir. The model of permeability conduits, calculated from fracture networks and calibrated with dynamic data, can be used for well planning and simulation. In this paper, case studies are used to illustrate applications of these technologies and their efficiency. IntroductionThe Cantarell field is located in a complex system of compressive structures in the Campeche Bay of Mexico. It was discovered in 1976. One of the critical issues for the oil recovery within the Cantarell field is the definition, characterization and modeling of the reservoir structure heterogeneities, i.e. conductive faults and fractures. The unexpected production behaviors in many fields may caused by an insufficient consideration of fracture effects on flow, which indicates the need for better characterizing the distribution of fractures at various scales and transferring the meaningful part of this information to field simulation models. The integration of borehole imaging and fracture related 3D seismic attributes improves the characterization of fractures. While coherence and amplitude gradients can often detect lineaments, reflector curvature is more directly linked to fracture distributions (Lisle [10]; Roberts [16]; Berg...

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What is the Impact of Fracture Modelling on Reservoir Performances and Reservoir Simulation: Examples

Cited by 2 publications

References 0 publications

Integrated Fractured Reservoir Characterization and Connectivity Study in the Cantarell Field

Integrated Fractured Reservoir Characterization and Connectivity Study in the Cantarell Field

Characterization and Modeling Study of the Carbonate-Fractured Reservoir in the Cantarell Field, Mexico

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