... and neutron porosity plus shallow and deep resistivity logs as input variables. The neural network was trained to predict the ΦS o product from whole core analysis. The trained and tested neural network was then used to estimate ΦS o in 25 additional Brushy Canyon wells that were not used in the training...

... the horizontal drainhole of horizontal wells, hence providing adequate measurements of reservoir properties in the interwell locations. In this study a petrophysical model was generated for the north east area of Hassi Messaoud field comprising four horizontal wells. The generated models of porosity...

... microporisity sandstone reservoirs was iluustrated by a third field example. shaly sand model spe 70040 tsh hydrocarbon sand model saturation resistivity water saturation value porosity conductivity archie pyrite shale evaluation well logging hamada equation water saturation mineral log...

... particle may flow when injection restarts and how the mobilization of sand may decrease porosity and permeability and then cause injectivity decline. Assumptions The system consists of three phases: the sand particles flowing with water, the flowing water and the solid matrix; Fluidized...

... acknowledgment of where and by whom the paper was presented. Write Librarian, SPE, P.O. Box 833836, Richardson, TX 75083-3836, U.S.A., fax 01-972-952-9435. Nomenclature Nomenclature Abbreviation Expansion ACE alternating conditional expectations DPHI density log derived porosity, fraction...

... on field production, will also be discussed. Finally, plans for future development of this mature field will also be discussed. miscible method pattern 779 reef margin upstream oil & gas injection profile gravity override injection miscible flood spe 70066 injection rate porosity...

... interpretation, and outcrop analog studies in Apache Canyon, Sierra Diablo Mountains, West Texas. Rock-fabric/petrophysical studies have shown that a single porosity-permeability transform and porosity-saturation-capillary-pressure model can be used to calculate permeability and water saturation in uncored wells...

... reservoir surveillance reservoir geomechanics placement stringer downhole intervention drilling fluids and materials enhanced recovery reservoir characterization production monitoring azari spe 59530 stimulation treatment porosity Introduction Fractures, fissures, water fingering, water...

... in which field average parameters were used with 47 sonic porosity logs from the older wells lacking density/neutron data. Net pay and original oil in place were calculated for 63 wells. Targets for potential water or CO 2 flood development are identified as the upper one-third of the Blinebry...

..., pulsed-neutron logging can also provide geological correlation across the structure. Figure 1 shows the cased-hole neutron and density porosities set into a geological cross-section. Abstract Rienecke field is one of a series of fields in the Horseshoe Atoll of the Midland Basin. This carbonate...

... to date. denver unit producer flood spe 59548 porosity co2 injection infill drilling barbara bergersen injector drilling upstream oil & gas bergersen modeling & simulation enhanced recovery reservoir history match conversion denver unit infill drilling sherri albrecht spe...

... measurements to the actual reservoir properties needed for successful modeling and simulation. These properties include both porosity and permeability variations in the reservoir rock. Coincident with the development of geostatistical reservoir characterization techniques has been the investigation...

... Abstract At Dagger Draw it is difficult to arrive at reliable estimates of total pore volume in the vuggy dolomitic reservoir. Correlating wire-line logs to core porosity using a multi-layer perceptron neural network (MLP) generated a "ground truth" porosity estimator for the reservoir. Well...

... are typical platform cycles composed of lower skeletal/peloid mud-dominated dolostone and upper peloid grain-dominated dolopackstone. Most of the reservoir produces from interparticle porosity. However, molds of anhydrite nodules and the absence of anhydrite on the eastern and southern flanks...

... In 1994, a suit of openhole modern logs was obtained from the newly drilled well, Foster 4, located about 1068 ft from the northeast corner of the Reed-Sanderson Unit ( Fig. 1 ), which penetrated the entire Penrose formation. The logs from Foster 4 include gamma ray (GR), neutron porosity (M N...

... and porosity led Archie to the following relationship between a reservoir rock and its formation resistivity factor, when all pores are brine-saturated, is as follows: F = ϕ − m where φ is porosity and m is the slope of the average trendline representing the plotted relationship using...

... and materials asset and portfolio management well intervention completion installation and operations production monitoring porosity production enhancement production control texaco downhole intervention reservoir characterization stimulation steam-assisted gravity drainage sagd reservoir...

... the advantages of operating at a lower pressure. P. 319 injector injection southern fault block coz injection slug injection modeling & simulation permeability devonian reservoir oil recovery water injection dollarhide devonian reservoir porosity upstream oil & gas enhanced recovery...

... Abstract The porosity of gas-bearing formations is determined using empirical models. These models use the porosity values displayed by the density and neutron logs, assuming that both tools investigate the same gas saturation profile. They also assume that the variation of gas density and mud...

... possess common features in that each flow unit in any shaly sand reservoir can be represented by a straight line on a log- log plot of the "Shaly Reservoir Quality Index" (SRQI) versus porosity. This straight line representing the flow unit yields a unique slope that equal: [1.7 + (m/2)] for laminated...