Integrated Geoscience and Reservoir Simulation Approach to Understanding Fluid Flow in Multi-Well Pad Shale Gas Reservoirs

2014 ◽  
Author(s):  
Patrick Kam ◽  
Muhammad Nadeem ◽  
Eseoghene Nene Omatsone ◽  
Alex Novlesky ◽  
Anjani Kumar
Keyword(s):  
Fluid Flow ◽  
Shale Gas ◽  
Reservoir Simulation ◽  
Simulation Approach ◽  
Gas Reservoirs ◽  
Shale Gas Reservoirs

scholarly journals The Application of Integrated Assisted History Matching and Embedded Discrete Fracture Model Workflow for Well Spacing Optimization in Shale Gas Reservoirs with Complex Natural Fractures

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Qiwei Li ◽  
Jianfa Wu ◽  
Cheng Chang ◽  
Hongzhi Yang ◽  
Chuxi Liu ◽  
...  
Keyword(s):  
Shale Gas ◽  
Reservoir Simulation ◽  
History Matching ◽  
Fracture Model ◽  
Natural Fractures ◽  
Gas Reservoirs ◽  
Discrete Fracture Model ◽  
Shale Gas Reservoirs ◽  
Well Spacing ◽  
Discrete Fracture

An appropriate well spacing plan is critical for the economic development of shale gas reservoirs. The biggest challenge for well spacing optimization is interpreting the subsurface uncertainties associated with hydraulic and natural fractures. Another challenge is the existence of complex natural fractures. This work applied an integrated well spacing optimization workflow in shale gas reservoirs of the Sichuan Basin in China with both hydraulic and natural fractures. The workflow consists of five components: data preparation, reservoir simulation, estimated ultimate recovery (EUR) analysis, economic calculation, and well spacing optimization. Firstly, the multiple realizations of thirteen uncertain parameters of matrix and fractures, including matrix permeability and porosity, three relative permeability parameters, hydraulic fracture height, half-length, width, conductivity, water saturation, and natural fracture number, length, and conductivity, were captured by the assisted history matching (AHM). The fractures were modeled by the embedded discrete fracture model (EDFM) accurately and efficiently. Then, 84 AHM solutions combining with five well spacing scenarios from 517 ft to 1550 ft would generate 420 simulation cases. After reservoir simulation of these 420 cases, we forecasted the long-term gas production for each well spacing scenario. Gas EUR degradation and well interference would imply the critical well spacing. The net present value (NPV) for all scenarios would be calculated and trained by K -nearest neighbors (KNN) proxy to better understand the relationship between well spacing and NPV. In this study, the optimum well spacing was determined as 793 ft, corresponding with a maximum NPV of 18 million USD, with the contribution of hydraulic fractures and natural fractures.

Comprehensive Seepage Simulation of Fluid Flow in Multi-scaled Shale Gas Reservoirs

2017 ◽  
Vol 121 (2) ◽  
pp. 263-288 ◽  
Author(s):  
Liehui Zhang ◽  
Baochao Shan ◽  
Yulong Zhao ◽  
Hongming Tang
Keyword(s):  
Fluid Flow ◽  
Shale Gas ◽  
Gas Reservoirs ◽  
Shale Gas Reservoirs

A New Approach to Numerical Simulation of Fluid Flow in Fractured Shale Gas Reservoirs

2011 ◽  
Author(s):  
Kirill Bogachev ◽  
Vasilii Shelkov ◽  
Yakov Zhabitskiy ◽  
Dmitry Eydinov ◽  
Tom Robinson
Keyword(s):  
Numerical Simulation ◽  
Fluid Flow ◽  
Shale Gas ◽  
Gas Reservoirs ◽  
New Approach ◽  
Shale Gas Reservoirs
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