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Keywords: drawdown
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Journal Articles
SPE J. 25 (06): 839–847.
Paper Number: SPE-12520-PA
Published: 01 December 1985
... and are followed by infinite-acting radial flow behavior and/or boundary effects. In contrast, if a formation is of a predominantly linear shape, linear flow is expected to develop in late time. In this paper, analyses of interference, drawdown, and buildup tests that are applicable to linear flow systems...
Journal Articles
SPE J. 24 (03): 294–306.
Paper Number: SPE-11140-PA
Published: 01 June 1984
... Copyright 1984, Society of Petroleum Engineers constant-pressure boundary drawdown curve transmissibility no-flow boundary heterogeneity upstream oil & gas buildup curve straight line log cycle flow time buildup semilog plot characteristic discontinuity boundary intersection...
Journal Articles
SPE J. 23 (05): 769–780.
Paper Number: SPE-10782-PA
Published: 01 October 1983
... of Petroleum Engineers root model fractured reservoir pressure response gradient model pressure segment pressure distribution matrix block artificial intelligence storage drillstem testing pressure curve drawdown assumption warren upstream oil & gas pressure change pressure behavior...
Journal Articles
SPE J. 22 (03): 309–320.
Paper Number: SPE-9922-PA
Published: 01 June 1982
... in the downhole transient curve is measured. Application of graphical and nongraphical methods to determine reservoir parameters from drawdown tests is demonstrated. 12 2 1981 26 2 1982 20 10 1981 1 6 1982 1 6 1982 Copyright 1982, Society of Petroleum Engineers flow rate...
Journal Articles
Journal Articles
SPE J. 20 (06): 555–566.
Paper Number: SPE-8203-PA
Published: 01 December 1980
... reservoir characterization bore buildup numerical model drawdown propagation The petroleum industry's technique of assessing oil and gas reservoirs by well testing has been extended to the geothermal field by a number of workers. 1 – 3 However, at least two important differences between...
Journal Articles
SPE J. 17 (05): 369–376.
Paper Number: SPE-5981-PA
Published: 01 October 1977
... and relative-permeability characteristics are identical to those used in this study. The pseudo-pressure function concept used to analyze pseudo-pressure function concept used to analyze drawdown and buildup behavior extends the applicability of the results to a wide range of PVT relations and relative...
Journal Articles
SPE J. 16 (04): 196–208.
Paper Number: SPE-5588-PA
Published: 01 August 1976
...R. Raghavan Drawdown and buildup data in a homogeneous, uniform, closed, cylindrical reservoir containing oil and gas and producing by solution gas drive at a constant surface oil rate were investigated. The well was assumed to be located at the center of the reservoir. Gravity effects were...
Journal Articles
SPE J. 14 (02): 107–116.
Paper Number: SPE-4054-PA
Published: 01 April 1974
... resulting from depletion. It is possible to compute the mean pressure in the constant-pressure case at any time during shut-in. Interpretative graphs for analyzing drawdown and buildup pressures are presented and discussed. This case is also of interest in analyzing well tests obtained from developed five...
Journal Articles
SPE J. 14 (01): 44–54.
Paper Number: SPE-3981-PA
Published: 01 February 1974
... for determining well locations for a producing field. 1 2 1974 1 2 1974 1 2 1974 1 2 1974 gas storage production logging production control Artificial Intelligence production monitoring optimization problem Reservoir Surveillance natural gas storage drawdown calculation...
Journal Articles
SPE J. 9 (04): 463–472.
Paper Number: SPE-2156-B
Published: 01 December 1969
...H. Kazemi; M.S. Seth; G.W. Thomas The double-porosity model of Warren and Root for examining pressure drawdown and buildup phenomena in naturally fractured reservoirs has been extended to interpret interference test results. Both analytical and numerical solutions are presented. The practicality...
Journal Articles
Journal Articles
SPE J. 5 (01): 60–66.
Paper Number: SPE-966-PA
Published: 01 March 1965
... to that describing the unsteady-state behavior of homogeneous reservoirs. Accepting the assumed model, for all practical purposes one cannot distinguish between fractured and homogeneous reservoirs from pressure build-up and/or drawdown plots. Introduction The bulk of reservoir engineering research and techniques...
Journal Articles
SPE J. 3 (01): 41–48.
Paper Number: SPE-417-PA
Published: 01 March 1963
... conditionsparticularly for high pressure drawdowns. Introduction The problem of calculating dissolved-gas-drive reservoir performance has received a great deal of attention throughout the oil-producing industry for many years. Really significant advances, however, have been made only in recent years. The rapid evolution...
Journal Articles
SPE J. 2 (03): 225–256.
Paper Number: SPE-156-PA
Published: 01 September 1962
... drawdown viscosity disturbance Drillstem Testing compressibility drillstem/well testing variation boundary condition flow in porous media Fluid Dynamics approximation bounded reservoir Derivation liquid expression reservoir gas flow exact solution radial flow equation assumption...

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