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Productivity Model for Shale Gas Reservoir with Comprehensive Consideration of Multi-mechanisms

Productivity Model for Shale Gas Reservoir with Comprehensive Consideration of Multi-mechanisms

Abstract: Multi-stage fracturing horizontal well currently has been proved to be the most effective method to produce shale gas. This method can activate the natural fractures system defined as stimulated reservoir volume (SRV), the remaining region similarly is defined as un-stimulated reservoir volume (USRV). At present, no type curves have been

Well test, rate transient analysis and reservoir simulation for characterizing multi-fractured unconventional oil and gas reservoirs

Also at the well location, although the well may penetrate a productive shale, but in the same interval, away from the well location there might be non-productive shale sections. In other words, in unconventional shale reservoirs, productive shale zones and non-productive shale sections have randomly been distributed as illustrated in Fig. 3.

Abstract Unconventional reservoirs such as shale gas and shale oil have become an increasingly important source of energy in the USA with potential reservoirs identified worldwide. Due to the insufficient permeability of the shale reservoirs, they require efficient stimulation using multistage hydraulic fractures to produce gas  in commercial quantities. A critical

Unconventional Shale Reservoir’s Property Estimation through Modeling, Case Studies of Australian Shale

In this approach, a multi-fractured horizontal gas well in a shale formation is divided into four zones. Shale formation between each pair of hydraulic fractures consists of four zones: compacted zone around well-bore (1), shale matrix (2), induced fractures (3) and main hydraulic fractures (4). The main contribution of this study is considering varying permeability for each specific zone implemented in the mathematical presentation of gas flow in shale.

Unconventional Shale Reservoir’s Property Estimation through Modeling, Case Studies of Australian Shale   Robert Shiver*, Kim Nelsen, Eifei Li, John Lee, Grad Dwithes Cooper Clean Energy Inc., Sydney, Australia   Abstract A simplified approach is introduced to model production from shale gas resources. In this approach, a multi-fractured horizontal gas well in a shale formation is

Simulation Study of CO2-EOR in Tight Oil Reservoirs with Complex Fracture Geometries

We build a compositional reservoir model to investigate the effects of complex fracture geometries on performance of CO2 Huff-n-Puff and CO2 continuous injection. The results confirm that the appropriate modelling of the fracture geometry plays a critical role in the estimation of the incremental oil recovery.

Simulation Study of CO2-EOR in Tight Oil Reservoirs with Complex Fracture Geometries Pavel Zuloaga-Molero1, Wei Yu2, Yifei Xu1, Kamy Sepehrnoori1 & Baozhen Li3 1Department of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin, TX, 78712,  USA. 2Department of Petroleum Engineering, Texas A&M University, College Station, TX, 77843, USA. 3CNOOC Research

Modeling and Simulation of Natural Gas Production from Unconventional Shale Reservoirs

Modeling and simulation of unconventional reservoirs are much more complicated than the conventional reservoir modeling, because of their complex flow characteristics. Mechanisms, which control the flow in the reservoir, are still under the investigation of researchers.

Modeling and Simulation of Natural Gas Production from Unconventional Shale Reservoirs Gary Feast1, Kim Wu1, John Walton2, Zufang Cheng2, Bao Chen2  1Novel Energy, Inc., Pittsburgh, PA, USA. 2Subsurface Shale Group, Columbus, OH, USA Abstract Modeling and simulation of unconventional reservoirs are much more complicated than the conventional reservoir modeling, because of their complex flow

The Research of Gas Flooding of Horizontal Well with SRV in Tight Oil Reservoir

The characteristics of tight oil reservoir are low porosity and ultra-low permeability, thus stimulated reservoir volume (SRV) should be conducted whether applying the mode of vertical wells or horizontal wells production.

The Research of Gas Flooding of Horizontal Well with SRV in Tight Oil Reservoir   Xiaoliang Zhao*, Xinwei Liao and Huan Wang China University of Petroleum-Beijing, China Abstract The characteristics of tight oil reservoir are low porosity and ultra-low permeability, thus stimulated reservoir volume (SRV) should be conducted whether applying the mode of vertical wells

A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores

In this study, a numerical model was developed to investigate the effect of confined phase behavior on cumulative oil and gas production of four horizontal wells with different fracture geometries.

A Comprehensive Numerical Model for Simulating Fluid Transport in Nanopores   Yuan Zhang1, Wei Yu2, Kamy Sepehrnoori3 & Yuan Di1 1College of Engineering, Peking University, Beijing, 100871, China. 2Department of Petroleum Engineering, Texas A & M University, Collage Station, TX, 77843, USA. 3Department of Petroleum and Geosystems Engineering, University of Texas at Austin,

Shale Reservoir-Centric Completions

In North America, the transition from more conventional reservoirs into tight, basin-centered gas and now source shales has caused the industry to change the way reservoir performance is being assessed, measured, and documented. Historically in conventional reservoirs the reservoir quality was carefully examined on a well by well basis to determine reserves in place and exploitation plans.

Shale Reservoir-Centric Completions   John S. Spaid1, Jeff A. Dahl1, Ronald G. Dusterhoft2, Shameem Siddiqui3, Eric Holderby4 and Buddy McDaniel5 1-Devon Tower, 333 West Sheridan Avenue, Oklahoma City, OK, USA. 2-Halliburton, 3000 N Sam Houston Pkwy E, Houston, TX, USA. 3-W Sam Houston Pkwy N, Houston, TX, USA. 4-Halliburton, 210 Park Ave Suite

Simulation of Gas Transport in Tight/Shale Gas Reservoirs by a Multicomponent Model Based on PEBI Grid

Simulation of Gas Transport in Tight/Shale Gas Reservoirs by a Multicomponent Model Based on PEBI Grid Longjun Zhang1, Daolun Li1,2, Lei Wang3 and Detang Lu1 1Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, China. 2Hefei University of Technology, Hefei 230026, China. 3Institute of Nuclear Energy Safety Technology,

Behavior of Arps Equation in Shale Plays

Application the Arps method to shale Plays

Behavior of Arps Equation in Shale Plays Emanuel Martin Decline curves analysis through the Arps method has been historically the tool more used to make wells reserves forecast, Due to its simplicity and low cost. The method consist in the graphic extrapolation of the production from the historical production in a semi-log graph

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