Structural Uncertainty Analysis using 3D Seismic and Well Data to Estimate Gross Rock Volume GRV Ranges in Reservoir: A Case Study in Carbonate Reservoir, UAE

2017 ◽  
Author(s):  
Anurag Grover ◽  
Abrar Al Mesmari ◽  
Saif Al Shamsi ◽  
Tariq Al Shabibi
Keyword(s):  
Uncertainty Analysis ◽  
Carbonate Reservoir ◽  
Structural Uncertainty ◽  
3D Seismic ◽  
Well Data

Stochastic inversion by trace matching for carbonate reservoir property prediction: A Mishrif Reservoir case study

2019 ◽  
Vol 38 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Sara R. Grant ◽  
Matthew J. Hughes ◽  
O. J. Olatoke ◽  
Neil Philip
Keyword(s):  
Seismic Data ◽  
Carbonate Reservoir ◽  
Inversion Process ◽  
Reservoir Properties ◽  
Stochastic Inversion ◽  
Large Numbers ◽  
Well Data ◽  
Established Technique

Estimation of reservoir properties and facies from seismic data is a well-established technique, and there are numerous methods in common usage. Our 1D stochastic inversion process (ODiSI), based on matching large numbers of pseudowells to color-inverted angle stacks, produces good estimations of reservoir properties, facies probabilities, and associated uncertainties. Historically, ODiSI has only been applied to siliciclastic reservoir intervals. However, the technique is equally suited to carbonate reservoirs, and ODiSI gives good results for the Mishrif Reservoir interval in the Rumaila Field in Iraq. Of course, a thorough awareness of the quality of all input well data and detailed validation of the parameters input to the inversion process is crucial to understanding the accuracy of the results.

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