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Keywords: calculation
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Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168997-MS
... calculated DTOF (τ) in cross-sectional view using the FMM for a homogenous and a heterogeneous reservoir in 3-D. Figure 1 Cross-sectional view of the diffusive time of flight in a 3-D homogeneous reservoir (upper) and in a heterogeneous reservoir (lower). The permeability fields near the wellbores are...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168993-MS
... then introduce a PVT solver to calculate gas properties in well conditions. We perform fits of well production to the resulting curves, and use the fits to estimate the field's average stimulated permeability. Finally, we provide estimates of time to interference and ultimate recovery for producing...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168986-MS
... gas phase due to the ignorance of the fluid-wall interactions. This work focuses on modifying the Peng-Robinson equation of state (PR-EOS) using the Simplified Local-Density (SLD) theory. From the modified PR-EOS, the fluid density at any arbitrary position inside the pore can be calculated using the...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-168981-MS
... of fluid properties. Recently, a corrected pseudotime has been introduced for this purpose, where the average pressure in the distance of investigation (DOI) is calculated using an appropriate material balance equation. Therefore, the distance of investigation calculation is critically important in...
Proceedings Papers

Paper presented at the SPE Unconventional Resources Conference, April 1–3, 2014
Paper Number: SPE-169011-MS
... production is higher compared with the conventional Darcy flow calculations which impact significantly on fracture and matrix pressure responses and production forecasting. Horne and Temeng (1995) presented an analytical model to characterize the behavior of transient pressure and flow performance...
Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-154815-MS
.... (2011) further noted that if non-Darcy effects are important, and apparent permeability can be derived as a function of pressure, then pseudo-variables can also be modified to account for non-Darcy flow. Those authors calculated apparent permeability as a function of pressure using the dynamic-slippage...
Proceedings Papers

Paper presented at the SPE Americas Unconventional Resources Conference, June 5–7, 2012
Paper Number: SPE-155476-MS
... being produced ( Warpinki et al., 2012 ). While this paradigm is generally useful, a simple mass balance calculation illustrates that the cumulative deformation associated with the microseismic events can account for only a small fraction of the production. In a single well, it has been shown that the...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144317-MS
... permeability change flow plot reservoir calculation javadpour linear flow plot ertekin permeability The unique storage and transport properties of unconventional gas reservoirs require that conventional petroleum engineering methods be modified to account for these unique characteristics. With...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144338-MS
... One of our objectives here is to compute and visualize the impact of natural fractures on the drainage volume calculations through dual-porosity simulation. For this, we utilize a discrete fracture network (DFN) model to generate the permeability distribution for the natural fractures...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144097-MS
... multi-component model would specifically be critical in order to better determine the resource in place. Consequently, in its practical application to reservoir engineering calculations, equation (6) could be considered too simplistic because of the spatial variability in hydrocarbon composition in...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144067-MS
... provides a comprehensive, yet practical guide to the interpretation of microseismic measurements. reservoir characterization fracture length event pattern interpretation maxwell calculation evaluation upstream oil & gas cipolla microseismic event pattern graph magnitude hydraulic...
Proceedings Papers

Paper presented at the North American Unconventional Gas Conference and Exhibition, June 14–16, 2011
Paper Number: SPE-144365-MS
... hydraulic fracturing heterogeneity completion tight gas simulation lee tight gas reservoir complex reservoir calculation optimization application artificial intelligence upstream oil & gas gas reservoir streamline interference fracture stage vertical well fracture...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Conference, February 23–25, 2010
Paper Number: SPE-131767-MS
... predicting the volume of low density high gamma ray organic material (kerogen) as a guide to understanding the deposition of the shales. Subsequently, work focused on not only calculating the density of upper Devonian shales, but applying a correction to the density and neutron logs to correct them for the...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Conference, February 23–25, 2010
Paper Number: SPE-131772-MS
... under the influence of organic pore walls and shows a density profile across the pore with damped-oscillations. This raises the following serious questions related to gas-in-place calculations: under reservoir conditions, what fraction of the pore volume of the organic material can be considered...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114884-MS
... Abstract This paper outlines a technique for filtering elevation profile data for multiphase pipeline calculations. When gas and liquids flow together in a pipeline, slip between the phases results in the accumulation of liquid in uphill sections of the pipeline. This liquid holdup causes the...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114995-MS
..., uses the industry-standard practice of p/z material balance to calculate original-gas-in-place. As with the Agarwal-Gardner approach, the flowing p/z* method can be applied to variable gas rates and/or flowing pressures conditions. In the present work, the derivation and iterative procedure of...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100313-MS
...-fractured) CBM wells. Examples of how reservoir inputs to the type-curves and subsequent calculations are modified to account for CBM reservoir behavior are given. This paper demonstrates, using simulated and field examples, that reasonable reservoir and stimulation estimates can be obtained from production...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100451-MS
... concluded that fracture compressibility can play an important role in the calculation of gas in place in naturally fractured reservoirs. The subject matter is significant because historically formation and water compressibilities have been neglected when carrying out MB calculations of conventional gas...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100497-MS
... contributions of mechanical formation damage and condensate banking to the well productivity impairment. Well models to predict the incremental production rate that can be expected after the remediation of the formation damage can be built by means of well test analysis and vertical flow profile calculations...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-99830-MS
... reservoir pressure is of the main reservoir parameters for performance prediction, material balance calculations was performed based on volumetric and PVT data to determine current reservoir pressure. Furthermore the retrograde condensate deposition (liquid drop-out) is also calculated with the introduction...

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