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Keywords: pressure derivative
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Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206108-MS
... and the dimensionless pressure derivative with respect to the natural logarithm of dimensionless time from the solutions of various wellbore configurations, reservoir properties, and reservoir geometry. It is not our intent to review all possible diagnostic plots based on constant-rate drawdown solutions, but we...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201672-MS
... of the productivity or stimulation efficiency of a certain stage. When DFIT data is not available, pressure decline analysis of a main hydraulic fracturing stage can be used even if it can be monitored for a relatively short period of time (1 hour). Most important of all, we show that the slope of pressure derivative...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201335-MS
... to a band in pressure prediction and pressure derivative of the impulse response. This study developed a more robust method for deconvolution of pressure measurements. In addition, the mathematical insights obtained in the study allow for a more general understanding of how the deconvolution problem can...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201448-MS
... does provide a strong auxiliary means of interpretation. production control reservoir characterization pressure transient analysis production monitoring flow in porous media upstream oil & gas wellbore storage effect vertical fracture conductivity pressure derivative artificial...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195930-MS
... method linear flow pressure derivative drillstem/well testing transient linear flow boundary-dominated flow Clarkson Agarwal reserves evaluation flow period sla method flow regime time plot detection straight-line analysis method linear flow parameter reservoir boundary reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196154-MS
... pressure derivative pressure variation leakage aquifer characterization society of petroleum engineers analytical solution (12) ∂ 2 Δ p f a 2 ∂ y 2 − k k f y w f / 2 ∂ Δ p a 2 ( t , 0 , y ) ∂ x + 2 k f x k...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187290-MS
... and isolated natural fractures. The pressure transient solution of these diffusivity equations was obtained by using Laplace transforms and Stehfest numerical inversion. Results showed that with the discrete natural fractures, a "V-shaped" pressure derivative --the classical dual-porosity feature of naturally...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187348-MS
... fracture permeability compliance method fracture pressure fracture stiffness time plot stiffness closure fracture surface pressure derivative square root Diagnostic fracture injection tests (DFIT), which have also been referred to as Injection-Falloff Tests, Fracture Calibration Tests...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-184504-STU
... heterogeneous reservoir Drillstem Testing Fluid Dynamics reflection diffusivity equation flow in porous media drillstem/well testing pressure behavior boundary unconventional reservoir pressure derivative permeability production control hydraulic fracturing reservoir production monitoring...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181473-MS
... Testing field data polymer flooding pressure transient analysis analytical solution pressure derivative polymer region viscosity model falloff test society of petroleum engineers pressure transient testing information operation wellbore pressure Horner plot power-law model shear rate...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181488-MS
... can be transformed into an equivalent pressure or pressure derivative data set. This is also very important for unconventional gas and oil reservoirs, where the boundary-dominated pseudosteady-state flow regime takes years to develop. A new technique is presented for determining stimulated reservoir...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181627-MS
... reservoir geomechanics pressurization cycle microfrac testing packer carbonate reservoir the packers fracture propagation reservoir straddle packer microfrac test pressure derivative microfrac test pore pressure depletion operation fracture microfrac station The microfrac in-situ...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175037-MS
... fracture fracture fractured reservoir flow regime pressure derivative pressure transient behavior derivative radial flow regime linear flow regime A significant number of papers have been written on horizontal wells with multistage hydraulic fractures in conventional and unconventional...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175088-MS
... of the pressure derivatives, and how the match in one well correlated with another well. As an example, ranges of uncertainties and range of alternative models suggested by analytical PTA were discarded when tested in the full field model using DST data combined into a single model. Results were integrated...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166477-MS
... upstream oil & gas kuchuk boundary condition pressure derivative fluid flow percolation probability complex reservoir naturally-fractured reservoir fracture network continuum approach biryukov fractal dimension fracture density reservoir fractured reservoir fracture equation...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166492-MS
... permeabilities derived from the VITs were then integrated to have a geological model with anisotropy. With the model, a single-well numerical pressure transient analysis was performed by simultaneously history matching the packer and the probe pressures as well as pressure derivatives to identify the presence...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-158096-MS
... interpretation fracture permeability flow regime derivative wellbore radial flow pressure derivative linear flow regime matrix block warren fractured reservoir All geological formations are fractured to some extent as a result of stress triggered by the Earth's crust weight, high fluid...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-159275-MS
... reservoir gauge 33208 buildup pressure derivative permeability The Martin Linge East structure was drilled by two wells 1976 and 1978 by Norsk Hydro and BP respectively and encountered gas in the Brent at around 3800 m subsea. The Martin Linge Field, currently operated by TOTAL E&P NORGE...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-134832-MS
... well drawdown numerical reservoir simulation drillstem/well testing drillstem testing upstream oil & gas reservoir simulation reservoir simulator transient well index transient well index approach analytical solution pressure derivative spe 134832 equivalent well radius well index...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 2008
Paper Number: SPE-116255-MS
... sequence Stehfest algorithm pressure derivative Inversion Algorithm algorithm Laplace domain SPE 116255 Numerical Inversion of Laplace Transforms in the Solution of Transient Flow Problems With Discontinuities N. Al-Ajmi, SPE, Colorado School of Mines; M. Ahmadi, SPE, Norwest Questa Engineering...

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