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Keywords: reservoir
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Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168987-MS
...-coupled geomechanical simulations, however this procedure is not suggested for the cases that other geomechanical effects are changing during reservoir depletion rather than focusing only on anisotropic permeability change. This paper was selected for presentation by an SPE program committee...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168966-MS
...Abstract Abstract Handling flow through fractured media is critical for transient pressure and flow analysis in shale gas reservoirs, because gas production from such low-permeability formations relies on fractures, from hydraulic fractures and fracture network to various-scaled natural...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168977-MS
...Abstract Abstract In cemented and cased wells, perforation cluster spacing is optimized based on the type of reservoir fluid, permeability, fracture conductivity, proppant distribution, and associated stresses to place multiple fractures along horizontal wellbores. Specifically, in very low...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169006-MS
... Probability distributions of CBM OGIP for seven world regions were determined ( Fig. 2 ) by Dong et al. (2012) . We developed the Unconventional Gas Resource Assessment System (UGRAS), which integrates Monte Carlo simulation with an analytical reservoir simulator, PMTx 2.0 (2012), to generate...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168967-MS
...Abstract Abstract Hydraulic fracturing combined with horizontal drilling has been the technology that makes it possible to economically produce natural gas from unconventional shale gas reservoirs. For best performance of fracturing stimulation, hydraulic fracturing designing parameters...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168997-MS
... In a homogenous reservoir, the contours of T are related to the propagation time, t of the pressure front through the following equation ( Vasco et.al., 2000 ; Kim et.al., 2009 ): (3) τ = β t where the factor β is 2, 4, and 6 respectively for 1-D linear, 2-D radial, and 3...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168964-MS
... Due to the extremely low matrix permeability in Liquid-Rich Shale/Tight ( LRS ) reservoirs, the condensate-bank, which exists near the wellbore and around the area stimulated by multi-stage fracturing, is believed to be immobile ( Whitson, C.H., et al, 2012 ). The oil production recorded...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168994-MS
... Artificial Intelligence Reservoir Characterization Thickness study area middle Bakken statistical analysis relative acoustic impedance productivity machine learning seismic resolution correlation coefficient cumulative production Upstream Oil & Gas production data statistics...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168976-MS
... For typical unconventional gas- and liquid-producing reservoirs, the following reservoir properties were considered: Pressure/volume/temperature (PVT). Relative permeability. Induced planar fracture geometry. Fracture complexity parameters. Tables 1 through 4 show...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168980-MS
... to develop consistent reservoir-engineering methods to analyze multi-phase production data in such reservoirs. Large drawdowns required to produce these very low permeability formations complicate production analysis due to condensate drop-out near the wellbore or fracture face. Hydraulically-fractured...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168981-MS
... Contacted fluid-in-place (t) = ( distance of investigation (t) ) × ( 2x f ) × ( reservoir thickness ) × ( porosity ) × ( initial fluid saturation ) / ( Initial fluid formation volume factor ) Multi-fractured horizontal wells (MFHWs) are currently the most effec t ive method to exploit...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169011-MS
...Abstract Abstract A practical simulation model is developed and demonstrated with applications for accurate characterization of production rate and pressure behavior with time in shale-gas reservoirs featuring horizontal wells intersected with multi-stages of hydraulic fractures. The model...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169013-MS
... in Table 4 . For the initial interpretation and reservoir characterization, the analyst used the Simple Yet Rigorous Approach proposed by Nobakht et al. (2010) and Anderson et al. (2010) . This approach requires defined input values for p i , L e , h, , s g , and n f . For parameters with low...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169022-MS
... forecast when it comes to unconventional liquid reservoirs. It is estimated that these tight oil reservoirs contain several hundred billion barrels in known basins in the United States. These accumulations were discovered several decades ago, but their exploitation was not economic due very low matrix...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169024-MS
...Abstract Abstract Hydraulic fracturing in unconventional reservoirs has increased rapidly in the past ten years. Each year, technologies are improved and methodologies are refined, making this process faster, safer, and more economical. Currently, plug-and-perforate is the most common type...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164537-MS
... composition with depth has been also observed. Oil density is in the range of 40 to 50 API. Viscosity at reservoir temperature (100 °C) varies between 0.3 to 0.7 cp but it has a high paraffin content. Bubble point pressure is 190 kg/cm 2 to 300 kg/cm 2 depending on location. General Workflow Abstract...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164538-MS
... in production plans requires detailed investigation of gas condensate bank developments and saturation dynamics in shale gas reservoirs that change greatly depending on reservoir rock and fluid properties and also operating conditions. An advanced level of understanding of the parameters affecting gas...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164525-MS
... Abstract Buildup data from multiply-fractured horizontal wells (MFHW) in tight (micro to nano-Darcy permeability) unconventional reservoirs often display a derivative signature which appears like radial flow and is frequently misinterpreted as such without due consideration of the expected flow regimes...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164528-MS
...Abstract Abstract In this paper we present a new method to model heterogeneity and flow channeling in petroleum reservoirs—specially reservoirs containing interconnected microfractures. The method is applicable both to conventional and unconventional reservoirs where the interconnected...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference-USA, April 10–12, 2013
Paper Number: SPE-164534-MS
... horizontal stress contrast minimum principal stress closure poroelastic effect reservoir Introduction Horizontal well hydraulic fracturing in shale formations is associated with complex fracture growth patterns ( Cipolla et al. 2010 ). This complexity is often associated with the interaction...

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