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Keywords: wellbore storage
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Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114946-MS
... results are presented in Table 2 . Our model is a two-layer reservoir including wellbore storage effects. The best match of the data obtained by Gao et al did not include wellbore storage effects. This probably causes a slight difference in the analysis results particularly at early times. In general...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-115001-MS
... the well before hydraulic fracturing. This pre-fracture test should not take too long and from the short flow and shut-in periods of such a test, the initial pressure can be determined. It is also possible to determine the permeability, if the data goes past the wellbore storage and damaged or improved...
Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114954-MS
... methods; addition of wellbore storage and skin (at wellbore and observation points); incorporation of absorbed gas for unconventional gas systems; pressure dependant fluid properties; reservoir heterogeneity; and rate forecasting. The methodology is validated by comparison to both analytical solutions...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-100540-MS
... & Gas buildup test flow in porous media Fluid Dynamics completion Drillstem Testing drawdown pressure drop derivative curve reservoir non-darcy skin factor coefficient permeability pressure derivative Forchheimer society di 1 effect wellbore storage non-darcy flow type curve spe...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, May 15–17, 2006
Paper Number: SPE-99352-MS
... transient analysis procedure fluid dynamics university hydraulic fracturing production monitoring equation case production control wellbore storage method Introduction: General History & Motiviation Modeling of petroleum reservoirs and its application to pressure and production...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, April 30–May 2, 2002
Paper Number: SPE-75526-MS
... Abstract This paper presents a simple and accurate method to determine all the reservoir parameters for transient constant-pressure drawdown data of gas wells influenced by wellbore storage, formation damage, and high-velocity flow effects. The working equations are written in such a way...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, March 15–18, 1998
Paper Number: SPE-39968-MS
... velocity effect coefficient velocity coefficient reservoir derivative response flow in porous media formation damage wellbore storage high velocity effect pseudopressure crossflow damage zone firoozabadi drillstem/well testing drillstem testing permeability flow rate pressure transient...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, March 15–18, 1998
Paper Number: SPE-39969-MS
..., performed, and interpreted, these tests provide valuable information on the well's skin condition. Wellbore storage becomes a very important factor with a surface shut-in. In addition to the wellbore fluids' compression and phase changes, temperature effects may be significant and extended depending...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, April 28–May 1, 1996
Paper Number: SPE-35618-MS
... for radial flow. The boundary condition at the wellbore included the use of chokes to control flow rates. Wellbore storage and non-Darcy flow effects were also included in the numerical simulation. Both Rawlins and Schellhardt empirical equation as well as the theory-based pressure drawdown equation were...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 28–30, 1993
Paper Number: SPE-26179-MS
... fractures including wellbore storage and fracture-face skin. Examples are provided. fracture-face skin drillstem testing wellbore storage flow problem conductivity fracture equivalent drawdown time drillstem/well testing wellbore storage effect equivalent time elliptical flow problem...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 28–30, 1993
Paper Number: SPE-26197-MS
.... The paper presents results of field tests performed on coal seams and a test performed on an Antrim Shale well. A simple Tank Test design procedure is also provided. equation tank test water level reduction drillstem testing drillstem/well testing injection test wellbore storage small diameter...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, January 22–24, 1991
Paper Number: SPE-21512-MS
... for gas well test analysis in such reservoirs. An automatic finite element grid generation technique provides grid refinement only in regions where it is needed. In this way wells and fractures are rigorously represented. Also wellbore storage and skin effects can be included in the model. Analytical...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 7–9, 1989
Paper Number: SPE-19099-MS
... Abstract This paper presents a new method for analyzing gas well test data distorted by wellbore storage. The method that we propose in this paper is an explicit deconvolution method which is independent of the reservoir model. As is well known, the deconvolution procedure corrects test data...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 7–9, 1989
Paper Number: SPE-19093-MS
... Abstract A new analytical solution for the pressure response of a well intercepting a finite-conductivity fracture is presented. We examine the effects of fracture conductivity, fracture height, drainage boundary size, wellbore storage and phase segregation on the pressure response...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 7–9, 1989
Paper Number: SPE-19098-MS
... Abstract This work shows the results of a systematic study of transient pressure analysis of gas flow under either constant bottom-hole pressure conditions or the constant wellhead ‘Pressure conditions. The effects of formation damage, wellbore storage and highvelocity ‘flow are included...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 7–9, 1989
Paper Number: SPE-19100-MS
... distorted by wellbore storage and phase segregation are analyzed. wellbore storage spe 19100 olarewaju phase segregation distortion drillstem/well testing distortion segregation analytical model buildup test data well buildup data reservoir curve match type curve upstream oil & gas...
Proceedings Papers

Paper presented at the SPE Gas Technology Symposium, June 13–15, 1988
Paper Number: SPE-17707-MS
... ) x-axis. This analysis procedure was tested with production data simulated for a single well reservoir model with and without wellbore storage distortion. The procedure was also tested with production data simulated for a hydraulically fractured well model. The results indicate this method can...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Technology Symposium, May 18–21, 1986
Paper Number: SPE-15229-MS
... ABSTRACT The gas flow equation is often linearized to allow liquid type curves to be used to analyze transient tests of gas wells. In the absence of wellbore storage, drawdown tests are best analyzed using the pseudopies-sure-time linearization. Buildup tests, however, require the pseudopres...
Proceedings Papers

Paper presented at the SPE Unconventional Gas Recovery Symposium, May 13–15, 1984
Paper Number: SPE-12847-MS
... testing equation skin factor flow test reservoir upstream oil & gas onept method permeability wellbore storage formation permeability rate sequence buildup test analysis drillstem testing onept technique production monitoring permea bility apparent skin factor hydraulic fracturing...

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