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Keywords: equation
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Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70035-MS
... derivative vs. time. Thus, different straight line portions indicating different flow regions are directly analyzed. Direct synthesis is very useful in conditions of short and early time pressure data missing tests. It also verifies the results since it uses more than one equation for the estimation...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70040-MS
..., for details of algorithms for shale sand models see some references ( 11-22). All these models are composed of two terms, a clean sand term described generally by Archie's equation and a shale term. The shale term could be fairly simple or very complicated. All models return to Archie' formula when the volume...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70051-MS
... level buchman spe 70051 plunger perforation production monitoring reservoir surveillance drillstem testing artificial lift system drillstem/well testing spe 70051 well rate well performance equation Copyright 2001, Society of Petroleum Engineers Inc. This paper was prepared...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70017-MS
... concentration of CO2, H2S, and N2. Gopal9 converted the natural gas compressibility charts into simple algebraic equations that can be used for computer application. Tiab4 (1984) studied the effect of various concentrations (0-100%) of CO2, H2S, and N2 on the pressure test analysis and introduced a simple...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70036-MS
... equation qdd fit oil reservoir spe 70036 flow rate drillstem/well testing type curve original oil fitting parameter production forecasting injection pressure transient analysis fetkovich application derivative type curve universal fitting equation stm 3 drillstem testing...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70048-MS
..., quantitative calculation of asphaltene precipitation with three phase flash algorithm is unstable because gas-liquid-solid material balance equations is highly non-linear equations. In the light of general view that there are not heavy hydrocarbons with high molecular weight including asphalt in gas phase...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70032-MS
... spe 70032 injector equation Copyright 2001, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Permian Basin Oil and Gas Recovery Conference held in Midland, Texas, 15 16 May 2001. This paper was selected for presentation by an SPE Program Committee following...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70043-MS
... cross-sectional area resistivity derivation flow in porous media equation exponent cross-section area microporosity water saturation log analysis pore throat fluid dynamics frailey archie wettability adisoemarta upstream oil & gas well log interpretation electrical...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70013-MS
.... Dikken 1 was the first to incorporate the effect of frictional wellbore pressure drop in horizontal well productivity. His basic assumption is that the productivity index per unit length of horizontal well is constant. He developed a second order differential equation to determine the wellbore flow rate...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70021-MS
..., multi-component numerical reservoir simulator, which takes into account the inter-phase mass transfer. Flow equations have a volume balance on the water phase and a mole balance on the vapor-liquid hydrocarbon phases. Additional equations include the capillary pressure, phase equilibrium, and saturation...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70045-MS
... formulation of hydrocarbon fluid at reservoir condition. Detailed derivation of all the equations presented in this work can be found in reference (1) and definitions of symbols are given in the nomenclature section. Oil Reservoirs (I) Material Balance Equations for Cumulative Fluid Production For oil...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70015-MS
... literature spe 70015 literature review upstream oil & gas non-darcy flow coefficient permeability equation experiment empirical correlation fluid flow saturation flow in porous media pore channel liquid saturation non-darcy coefficient coefficient correlation non-darcy...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, May 15–17, 2001
Paper Number: SPE-70061-MS
... material balance drillstem testing spe 70061 average reservoir pressure drillstem/well testing simultaneous determination drainage area equation material balance equation reservoir pressure upstream oil & gas bottom hole pressure production data new method production control...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 21–23, 2000
Paper Number: SPE-59702-MS
... calculations. Compressibility factors are used inmaterial-balance equations to estimate initial gas in place. It is also used incalculations of gas flow through porous media, gas pressure gradient in tubingand pipe lines, gas metering, and gas compression. Typically the gascompressibility factor, Z-factor...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 21–23, 2000
Paper Number: SPE-59804-MS
... treatment in real time, the model has to be simple and analytically solvable. This is a key criterion when selecting the mathematical models for acidizing evaluation. spe 59804 drilling operation equation skin evolution injection rate effectiveness upstream oil & gas drillstem/well...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 21–23, 2000
Paper Number: SPE-59532-MS
... to the out-of-phase electrical response, this study found that this ratio, the dissipation factor , changes linearly as a function of shale water content. This method can be easily applied to both the drilling / wellbore stability or formation evaluation areas. Electromagnetic Theory Maxwell's equations...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 21–23, 2000
Paper Number: SPE-59699-MS
... interpretation porosity upstream oil & gas formation resistivity factor pore throat flow path derivation equation cementation exponent porous media reservoir rock reservoir characterization interpretation archie log analysis cross-sectional area resistivity well logging pore spe 59699...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 23–26, 1998
Paper Number: SPE-39807-MS
... fractured reservoirs from single-well tests. P. 477 hydraulic fracturing wellbore drillstem testing spe 39807 mathematical model reservoir pressure directional permeability fracture system permeability ratio reservoir equation drillstem/well testing matrix permeability interpretation...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 23–26, 1998
Paper Number: SPE-39774-MS
... efficiency in water- drive gas reservoirs. P. 213 porosity determination gas-bearing formation porosity true porosity log analysis water saturation equation calibration determination water zone density tool neutron detector spe 39774 neutron porosity upstream oil & gas detector...
Proceedings Papers

Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, March 23–26, 1998
Paper Number: SPE-39808-MS
... Abstract This paper describes the reservoir engineering aspects of the CO feasibility study for Department of Energy Class II project, at the West Welch San Anders Unit. The DOE Class II demonstration simulation effort for the CO feasibility study uses an 11 component equation of state (EOS...

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