Anomalous Fluid Distribution Due to Late Stage Gas Migration in a Tight Oil and Gas Deltaic Sandstone Reservoir

2019 ◽  
Author(s):  
Per Kent Pedersen
Keyword(s):  
Late Stage ◽  
Oil And Gas ◽  
Fluid Distribution ◽  
Tight Oil ◽  
Gas Migration ◽  
Sandstone Reservoir ◽  
Anomalous Fluid ◽  
Tight Oil And Gas

scholarly journals GPU-Based Computation of Formation Pressure for Multistage Hydraulically Fractured Horizontal Wells in Tight Oil and Gas Reservoirs

2018 ◽  
Vol 2018 ◽  
pp. 1-10
Author(s):  
Rongwang Yin ◽  
Qingyu Li ◽  
Peichao Li ◽  
Yang Guo ◽  
Yurong An ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Superposition Principle ◽  
Horizontal Wells ◽  
Tight Oil ◽  
Formation Pressure ◽  
Gas Reservoirs ◽  
Integral Forms ◽  
Oil And Gas Reservoirs ◽  
Fractured Horizontal Wells ◽  
Tight Oil And Gas

A mathematical model for multistage hydraulically fractured horizontal wells (MFHWs) in tight oil and gas reservoirs was derived by considering the variations in the permeability and porosity of tight oil and gas reservoirs that depend on formation pressure and mixed fluid properties and introducing the pseudo-pressure; analytical solutions were presented using the Newman superposition principle. The CPU-GPU asynchronous computing model was designed based on the CUDA platform, and the analytic solution was decomposed into infinite summation and integral forms for parallel computation. Implementation of this algorithm on an Intel i5 4590 CPU and NVIDIA GT 730 GPU demonstrates that computation speed increased by almost 80 times, which meets the requirement for real-time calculation of the formation pressure of MFHWs.

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