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Keywords: estimation
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Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4044312-MS
... Abstract Empirical decline curve analysis remains the primary tool for the estimation of ultimate recovery of unconventional shale wells, and correspondingly, the associated economic value. Yet, certain DCA parameters are difficult to determine directly from production data, especially early...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4048995-MS
... Abstract The research presented focuses on the utilization of response surface methodology (RSM) to enhance the efficiency of horizontal wells, specifically targeting the optimization of Estimated Ultimate Recovery (EUR). The study recognizes the evolving landscape of the oil and gas sector...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4054738-MS
..., lamination, mineralogy, resistivities, clay properties, fluid distribution, and porosities. Formation clay mineral total porosity was estimated from petrophysical analyses of logs, X-ray diffraction-based mineralogy and core measurements. Thomas-Stieber plot (Thomas and Stieber, 1975) showed a trend...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4034724-MS
... (WCC1), Wolfcamp C2 (WCC2), and Wolfcamp D (WCD). Given the scarcity of accessible PVT reports in the region, obtaining accurate initial oil formation volume factor ( B oi ) values is challenging, despite their significance in estimating hydrocarbons in place. In this study, literature searches were...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4027567-MS
... module to accomplish production zone detection and rate range estimation functions. The workflows from both modules are then automated and thoroughly implemented as the first multiple-module workflow in this software package. This integrated workflow improves the quality of quantitative production...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3866741-MS
... are intended for CO2 sequestration, and the Belloy formation is utilized for water disposal. Amplitude versus Offset (AVO) seismic inversion methods are used to determine the formations’ elastic properties. Rock physics analysis is conducted to estimate porosity and mineralogy variations allowing for a better...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3723813-MS
... of its time efficiency in formation stress estimation, especially in tight formations. Nolte (1979) suggested a flowback rate between 1/6 to 1/4 of the previous injection rate and that it should be at a meaningful fraction of the in-situ leakoff rate. Nolte (1979) initially suggested picking fracture...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3723594-MS
... Abstract Interpretation of electrical measurements for estimation of fluid content in organic-rich mudrocks is challenging. Rock components other than saline water can contribute towards the effective conductivity of the rock in organic-rich mudrocks and needs to be incorporated into rock...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3703282-MS
... Abstract An accurate bottom hole pressure estimation is critical for the correct evaluation of any unconventional shale reservoir as it generates the necessary input for production diagnostic plots (such as the Linear Flow plot and the Log-Log plot), Rate Transient Analysis and Numerical...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3717105-MS
..., classical well testing is no longer a practical tool to estimate these parameters. Diagnostic Fracture Injection Tests (DFITs) are one of the few methodologies that allows estimation of reservoir transmissibility and pore pressure in unconventional reservoirs. DFITs are also useful to obtain closure...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5696-MS
.... A Monte Carlo Simulation (MCS) which samples the decline curve parameter distribution is then used to calculate reserves for 10,000 imaginary ‘wells’ to estimate the ‘true’ probabilistic value of the resource play. Limitations of available commercial tools include the time required to perform sound...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5241-MS
... fractures (HF). The paper also provides insights on the effects of parent wells' depletion on child well HF geometry based on various monitoring methods and subsurface models. Methods, Procedures, Process: Areal and vertical coverage for all HFTS-2 wells during stimulation and depletion was estimated based...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2928-MS
... permittivity conductivity estimation surface-charge-bearing nonconductive particle porous material interface complex reservoir fluid-filled porous material particle oil saturation inversion-derived estimate wettability graphite saturation nonconductive particle Abstract...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2584-MS
... Well spacing and its impact on performance degradation is currently an area of critical concern in unconventional reservoirs. A new methodology to estimate well spacing from readily available data is presented. The other significant outcomes of this workflow are the ability to rank well...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 20–22, 2020
Paper Number: URTEC-2020-2777-MS
... Abstract Very low permeability prevents the use of conventional formation or buildup tests for permeability estimation. The Diagnostic Fracture Injection Test (DFIT) offers a way to estimate permeability using the after closure (AC) transient response, but the time to reach a meaningful AC...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-897-MS
... Abstract The accurate estimation of the elastic properties of the rock is of great importance for designing a successful hydraulic fracturing. Among these properties, Young's modulus and Poisson's ratio essentially control fracture aperture and conductivity. However, the fissile nature...

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