... has been interpreted to have been deposited in a delta plain setting and to comprise three reservoir subdivisions that were developed as a single drainage unit. Field performance, however, has indicated that the reservoir is more complex; the present study was initiated to provide a revised...

...A. J. Rosa; R. N. Horne Summary This work investigates the possibility of characterizing the permeability distribution in areally heterogeneous reservoirs through the interpretation of pressure response to cyclic flow-rate variations. We formulated a mathematical model for the pressure behavior...

... simulator drillstem/well testing storage numerically simulation wht flow rate pvt measurement interpretation fluid temperature bhp whp production monitoring spe formation evaluation wellhead drawdown wellbore reservoir simulator reservoir surveillance geothermal gradient fluid enthalpy...

...C. S. Kabir Summary Drawdown tests are rarely interpreted unless accompanied by instantaneous surface or downhole rate measurements. Rate variations prevent a constant-rate analysis in most situations. Unsteady wellbore dynamics precipitated by progressive formation cleanup, multiphase fluid flow...

...Béla Tóth; Mihály Megyery Summary Pulse testing is an effective way of understanding fluid reservoirs. Several noise components bias high-sensitivity pressure measurements so that a considerable part of the tests cannot be interpreted conventionally, thus impeding pulse testing's wide-range...

...) for oil, 6000 m 3 /D (212 Mscf/D) for gas, and 22 m 3 /D (138 bbl/D) for water. log-log diagnostic plot fill-up test skin change afterflow interpretation spe formation evaluation wellhead shut-in wellbore storage drillstem/well testing determination drawdown reservoir parameter bottomhole...

... the noise associated with the signal, is a significant component of well-test interpretation and is a prerequisite to pressure-transient analysis. From experience with thousands of well tests, we have chosen several examples to illustrate the need for preprocessing the data. The observed pressures must...

...-temperature reservoirs. Thus, fluid temperature changes during a transient test, thereby complicating test interpretation when surface measurements must be used in a hostile downhole environment. This paper describes the application of a wellbore/reservoir simulator. This simulator can be run in two modes...

... interpretation procedure (which does not consider the invaded zone) for determining the horizontal and vertical mobility is also presented. The application of this modified procedure is discussed using a model example. Figure 1 Schematic of multiple probe tool. To develop an interpretation procedure...

... a behavior similar to the finite-conductivity fracture model or to spherical flow are presented and explained by the alternative of fractal networks. A behavior that can be mistakenly interpreted as a double-porosity case is also analyzed. It is well known that pressure transients of wells in naturally...

...Jetzabeth Ramírez-S.; Fernando Samaniego-V.; Fernando Rodríguez; Jesus Rivera-R. Summary This paper presents a solution for the inverse problem, or interpretation, of the radial flow of tracers in naturally fractured reservoirs. Our model considers cubic-matrix-block fracture geometry, and by using...

... fluids through a probe under isotropic confining stresses and present an analysis to deduce the optimal dimensions of a finite cylindrical rock to simulate hemispherical flow like that in a semi-infinite medium. We derive equations for permeability interpretation of laboratory measurements. We made...

... sampler. The tool has a visible and near-infrared absorption spectrometer for fluid discrimination and a refractometer for free gas detection. The Effective Flow Stream (EFS) model has been developed to interpret the measured data and to estimate the volume fraction of water and oil in the tool's flowline...

... or 4 in.) and well below the vertical resolution of the PNC device. This can result in serious interpretation errors leading to bypassed pay. Log response equations and interpretation techniques for inhomogeneous formations are derived in this report and compared with a large sampling of observed data...

... reservoir illustrates the benefit of comparing core and log measurements at the same scale. Agreement between punctual core and sonic measurements is within ± 10%, whereas core data upscaled at the level of sonic measurements are within ± 2% of the sonic. In addition, results of quantitative interpretation...

... flow. Analysis of these successive flow regimes yields estimates of the anisotropic formation permeabilities and the mechanical skin factor. In a second interpretation step, these estimates are refined through a weighted, nonlinear least-squares history match of either the measured transient-wellbore...

...Jaap C. Mondt Summary Through a combination of interactive interpretation and powerful automated tracking, horizons can be interpreted efficiently on every available trace in a 3D seismic survey. Horizon-related seismic attributes then are extracted and processed to enhance interpretation. Dip...

...Andrew A. Mills Summary Accurate quantitative interpretation of pulsed-neutron-capture (PNC) logs cannot be achieved in the low-salinity formation-water environment of the Gippsland basin because formation fluid responses are small relative to uncertainties introduced by lithologic variation. Time...

...Christine A. Ehlig-Economides Summary Interpretation models for layered reservoirs cannot be used effectively until a model has been identified for each reservoir layer. This paper introduces a new deconvolution form for presentation of multilayer transient (MLT) test measurements that is analogous...

... pulse testing time lag reservoir unit geologic model interpretation artificial intelligence pulse test truncation edge drillstem testing drillstem/well testing truncation communication sand fm-1 reservoir characterization fortescue field simulation model observation well esso australia...