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Pressure-rate convolution and deconvolution response for fractured conventional and unconventional reservoirs using new decline rate model

引用

Petroleum 2019年第3期5卷 243-251页

作者： Salam Al-Rbeawi Jalal Farhan Owayed Middle East Technical University Northern Cyprus CampusKuwait Kuwait University Kuwait

This paper introduces new approach for pressure-rate convolution and deconvolution analysis of multi-stages hydraulically fractured conventional and unconventional *** approach demonstrates the impact of variable Sand face flow rate on reservoir performance.A new model for P/R deconvolution is used to convert pressure pulse from variable flow rate to single and constant rate *** target of this study is fractal reservoirs with and without stimulated and unstimulated reservoir ***-linear flow regimes approach is used to describe pressure behavior in the reservoirs while decline flow rate behavior is described by newly proposed model in this *** model depicts,instead of van Everdingen model,indirectly the declining rate with time by using pressure responses with production *** flow rate behavior simulated by linear and bi-linear flow models are also studied and compared with the one obtained by the new *** analytical models are used in this study by applying P/R convolution and deconvolution technique and solved for constant and variable flow rate considering different reservoir configurations and operating *** results are interpreted and analyzed for better understanding pressure behaviors,flow regime types,and productivity index trends for continuously changing flow rate especially at early production *** stimulated reservoir volume(Vsrv)is considered one of the applications of convolved pressure since it is calculated from pseudo-steady state flow when late time boundary dominated flow regime is *** outcomes of this study can be summarized as:1)Introducing new approach for pressure-rate convolution and deconvolution technique for multi-stages hydraulically fractured reservoirs by applying new decline flow rate model that indirectly simulates variable flow rate with time.2)Generating analytical models for dimensionless pressure and flow rate for constant and variable flow rate usin

关键词： convolution and convolution technique Rate transient analysis Pressure transient analysis Fractured reservoirs Reservoir performance

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