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Keywords: equation
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Proceedings Papers

Paper presented at the SPWLA 29th Formation Evaluation Symposium of Japan, September 12–13, 2024
Paper Number: SPWLA-JFES-2024-I
... (the Microbial Methanation Simulator). MMS can deal with 10 components of H O, CO , CH , H , H , HCO , CO , OH , and and can solve the flow equations, RachfordRice equation, thermodynamics equilibrium condition equations and saturation constraint equation for each component. The above system of equations can...
Proceedings Papers

Paper presented at the SPWLA 29th Formation Evaluation Symposium of Japan, September 12–13, 2024
Paper Number: SPWLA-JFES-2024-H
... and the calculated value was verified with the analytical solution of the two-dimensional heat equation. Lastly, we combined these two simulators to develop a closed-loop geothermal simulator and conducted some case studies to investigate how the injection flow rate, the formation properties, and the difference...
Proceedings Papers

Paper presented at the SPWLA 28th Formation Evaluation Symposium of Japan, September 13–14, 2023
Paper Number: SPWLA-JFES-2023-S
... is rarely acquired, especially if it is an old data set. The reason that multi-salinity measurements are required is that linear regression is used as the method for solving the equation. However, today's computing environment makes it possible to casually use a numerical solver. By using a numerical...
Proceedings Papers

Paper presented at the SPWLA 27th Formation Evaluation Symposium of Japan, September 14–15, 2022
Paper Number: SPWLA-JFES-2022-I
... thermal method simulator permeability fracture equation saturation formation evaluation symposium reservoir simulation shale gas enhanced recovery nano-eor matrix condensate aggregation huff concentration soak prod experiment The 27th Formation Evaluation Symposium of Japan, September...
Proceedings Papers

Paper presented at the SPWLA 27th Formation Evaluation Symposium of Japan, September 14–15, 2022
Paper Number: SPWLA-JFES-2022-H
... Abstract In this research, we developed a numerical simulator predicting methane hydrate (MH) dissociation and production behavior in using grout material. This simulator solves the governing equations of the mass conservation for methane, water, MH, grout material and grout material hydrate...
Proceedings Papers

Paper presented at the SPWLA 26th Formation Evaluation Symposium of Japan, September 30–October 7, 2021
Paper Number: SPWLA-JFES-2021-H
... is injected from an upper horizontal well to reduce the viscosity of heavy oil, and this less viscous oil flows downward and is produced from a lower horizontal well. In this research, we have developed a three-dimensional, equation of state (EOS) based multi-component, thermal flow simulator, expecting...
Proceedings Papers

Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-I
... rock surface equation The 25th Formation Evaluation Symposium of Japan, September 25-26, 2019 -1- Development of Numerical Simulator for Predicting Oil Recovery Process of Low-Salinity Water Flooding Haruka Takahashi1, Sosuke Saito1, Ryoichi Morishita2, Kotaro Takahashi1 and Masanori Kurihara1 1...
Proceedings Papers

Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-C
... problem fracture model non-equilibrium state water saturation grid model equation permeability The 25th Formation Evaluation Symposium of Japan, September 25-26, 2019 -1- Development of Geothermal Reservoir Simulator for Predicting Water-Steam Flow Behavior Considering Non-equilibrium State...
Proceedings Papers

Paper presented at the SPWLA 24th Formation Evaluation Symposium of Japan, October 11–12, 2018
Paper Number: SPWLA-JFES-2018-G
... ABSTRACT In this research, we developed a double-permeability type compositional simulator (ECBM simulator) which deals with two phases of gas and water composed of four components of H2O, CH4, CO2 and N2. The phase behavior/equilibrium is calculated by solving the Equation of State (EOS...
Proceedings Papers

Paper presented at the SPWLA 23rd Formation Evaluation Symposium of Japan, October 11–12, 2017
Paper Number: SPWLA-JFES-2017-T
... and photoelectric factor log. Equally important; the permeability, TOC, and elastic properties in the depth-by-depth are estimated by using empirical equation for permeability, the average between DLogR Passey and Carbolog for TOC, and BI are predicted by using minerals content of rocks and sonic log. All...
Proceedings Papers

Paper presented at the SPWLA 23rd Formation Evaluation Symposium of Japan, October 11–12, 2017
Paper Number: SPWLA-JFES-2017-O
.... The estimated variable is obtained by the following Equation (2.3). 22 )2( 1 1 )1(* 1 muZuZuZ n i aa = (2.3) where )(2 uZ : seismic data )1( a , )2( : weighting factors 22 uZEm = : average value of seismic data 2.3 Markov-Bayes Simulation (MBSim) Markov-Bayes Simulation is a conditional simulation method...
Proceedings Papers

Paper presented at the SPWLA 23rd Formation Evaluation Symposium of Japan, October 11–12, 2017
Paper Number: SPWLA-JFES-2017-Y
... by Mollison et al (1999), when compared to previous bulk volume shaly sand saturation equations and high resolution resistivity modelling. However, many fields were developed before these tools became available and there is a requirement to review the data from these fields to identify the hydrocarbon bearing...
Proceedings Papers

Paper presented at the SPWLA 23rd Formation Evaluation Symposium of Japan, October 11–12, 2017
Paper Number: SPWLA-JFES-2017-H
... nonlinear elastic equations to expand the dynamical equations near the biased state. In the case of small dynamic fields superposed on a large static deformation, the resulting constitutive equations can be approximated by a linear system with an effective stiffness tensor related to the reference state...
Proceedings Papers

Paper presented at the SPWLA 22nd Formation Evaluation Symposium of Japan, September 29–30, 2016
Paper Number: SPWLA-JFES-2016-M
... to reproduce the above phenomena, the following equations were derived as the governing equations and constitutive derived equations. Flow equations for each component (mass balance equations) Cation exchange equations Adsorption equations for some cations onto clay surface. Equation for partitioning...
Proceedings Papers

Paper presented at the SPWLA 22nd Formation Evaluation Symposium of Japan, September 29–30, 2016
Paper Number: SPWLA-JFES-2016-E
... formation evaluation symposium optimization program saturation oil relative permeability experimental data enhanced recovery reservoir simulation gauss-newton method experiment core flooding experiment equation permeability The 22nd Formation Evaluation Symposium of Japan, September 29 - 30...
Proceedings Papers

Paper presented at the SPWLA 22nd Formation Evaluation Symposium of Japan, September 29–30, 2016
Paper Number: SPWLA-JFES-2016-L
... geometry. At the field scale both injectivity performance and sweep efficiency have been significantly affected by changing the ideal flow path and connectivity at the target sands. Eventually, an empirical equation was developed to characterize the magnitude of the damaged as the function of pore geometry...
Proceedings Papers

Paper presented at the SPWLA 21st Formation Evaluation Symposium of Japan, October 13–14, 2015
Paper Number: SPWLA-JFES-2015-S
... values of FRF at high ionic concentration, 60,000 mg/L-NaCl, where a clay mineral impact on resistivity is considered to be small. The cementation factor ‘m’ is calculated from Archie's equation. The distribution of ‘m’ has been widely studied by many researchers and usually ranged from 1.3 to 2.5...
Proceedings Papers

Paper presented at the SPWLA 21st Formation Evaluation Symposium of Japan, October 13–14, 2015
Paper Number: SPWLA-JFES-2015-BB
... Abstract This report addresses a class of interpretation problems where formation water salinity is highly variable. In such environments, saturation equations that rely on a good knowledge of the water salinity, such as resistivity-based equations (Archie) or thermal neutron capture cross...

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