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Keywords: approximation
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Proceedings Papers

Paper presented at the 15th World Petroleum Congress, October 12–17, 1997
Paper Number: WPC-29134
... either the 2.5-D Born or the 2.5-D Kirchhoff approximation, the predicted data are parameterized in terms of intercept and slope of the angle-dependent reflection coefficient. Minimisation with respect to the intercept and slope leads to two five-fold integral equations. Application of multi-dimensional...
Proceedings Papers

Paper presented at the 12th World Petroleum Congress, April 26–May 1, 1987
Paper Number: WPC-22113
... modèle profondeur est enfin calculé par migration d e cartes à l'aide d'un algorithme de tracé de rayons. Le programme de migratio approximation migration velocity field interval velocity map refraction algorithm Reservoir Characterization subsurface velocity model interpretation...
Proceedings Papers

Paper presented at the 10th World Petroleum Congress, September 9–14, 1979
Paper Number: WPC-18228
... approximations, speed-up in solving linear systems), data processing and the ways to use the models. We have not tried to be exhaustive, but rather to put down our observations of how the models have evolved. Résumé. Depuis leur apparition, qui remonte à plus de 10 ans, les moddes de gisements sont de plus...
Proceedings Papers

Paper presented at the 10th World Petroleum Congress, September 9–14, 1979
Paper Number: WPC-18118
... Reservoir Characterization approximation seismic technique Upstream Oil & Gas seismic data Romania programme autocorrelation function resolution information direct detection consideration amplitude interpretation panel discussion limitation computer exploration procedure geophysicist...
Proceedings Papers

Paper presented at the 4th World Petroleum Congress, June 6–15, 1955
Paper Number: WPC-6132
... of the hole is scissa 5 0 TO = - then 1 rather small, if compared to the leng hydraulic fracturing fracture wall approximation rupture liquid rupture graph Upstream Oil & Gas fracture vertical fracture contour formulae injection equation relation APW liquid injection...
Proceedings Papers

Paper presented at the 3rd World Petroleum Congress, May 28–June 6, 1951
Paper Number: WPC-4135
...-Examples of the Pressure Build-up in a Well II, 4-Example of the Pressure Build-up in a Weil in a Finite Reservoir .......... 517 II, j-Comm compressibility new well psig Upstream Oil & Gas horner-pressure buildup application Drillstem Testing approximation linear barrier fault...
Proceedings Papers

Paper presented at the 3rd World Petroleum Congress, May 28–June 6, 1951
Paper Number: WPC-4712
... at room temperature, at higher temperatures and at the highest temperatures when the material creeps. The following results have been found: The bolt load can be calculated with the aid of the formula of Petrie & Watts, being a very good approximation. The bolt load decreases at increasing...
Proceedings Papers

Paper presented at the 2nd World Petroleum Congress, June 14–19, 1937
Paper Number: WPC-2038
... icarlclicli genau an einen Streichlinienplan (Fallen). U'ir nehmen an, dass man inz ganzen Frld die wirklzchen Gleichu Upstream Oil & Gas approximation donne pendage couche drilling operation sondage methode strate suivant etude analytique hypothese profondeur suivante coupe...

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