.... 1 , 5 (2) p D = 4 π k r s w ( p i − p r , t ) q μ . (3) t D = k r s w 2 t ϕ μ c r 4 ;   r ≧ r s w . skin effect flow rate type curve inner boundary condition storage pressure drop...

... derived here are also presented. 4 12 1982 28 8 1984 17 3 1984 1 10 1985 1 10 1985 Copyright 1985, Society of Petroleum Engineers fractured well analytical solution pressure transient testing fracture procedure approximation denote flow period flow rate...

... section, a reasonable course is to retreat to measurements that can be made. For a particular flow system, these are the pressure drop and the flow rate. If one assumes that this experiment represents a small sample of a larger flow system in which the flow is uniform, then it is appropriate to calculate...

... transform bessel function flow rate fenske approximation drillstem testing fenske conservation method drillstem/well testing pressure drop agarwal approximation equation upstream oil & gas pressure transient solution procedure fenske method storage ramey type curve reservoir...

... ( B o + v A cosh u   cos v ) . upstream oil & gas elliptical finger flow rate production logging instability production control stability analysis combustion front flat front displacement front displacement flow in porous media combustion reservoir surveillance...

... into two-phase fractured reservoirs increases flow rates and decreases enthalpies of producing wells. These two effects offset each other so that injection tends to have small effects on the usable energy output of production wells in the short term. However, if a sufficiently large fraction...

... for different phase compositions is summarized. 5 10 1983 4 6 1984 20 3 1984 1 4 1985 1 4 1985 Copyright 1985, Society of Petroleum Engineers co 2 gas saturation production control flow rate porosity mass fraction ohaaki permeability horizontal permeability...

... of a randomized honeycomb. A mathematical relation for predicting the pressure dependence of flow rate in sheet pores has been derived from the dimensions of the pores and the elastic constants of the matrix. The equation has been validated by measurements on artificial media containing cracks of known dimensions...

... friction factor high-stress region experiment transducer roughness fracture geometry upstream oil & gas flow rate gauge hydraulic fracture fracture length pressure drop Hydraulic fracturing, which has proved a valuable well-stimulation technique for low-permeability reservoirs, has...

... anemometry newtonian behavior proppant aqueous solution velocity profile rheological characterization characterization shear-rate range shear rate viscosity capillary viscometer flow rate The role played by the rheology of fracturing fluids in the design of stimulation treatments does...

... at low gas and liquid flow rates and for negative pipeline inclinations. Slugging in some offshore platforms has required the use of operating procedures that drastically curtail production. Losses in flow capacity up to 50% have been reported. A hydrodynamic model has been developed for severeslug flow...

.... permeability fracture system flow in porous media fracture face saturation thickness condensate accumulation upstream oil & gas fluid dynamics matrix rock retrograde condensate imbibition flow rate permeable layer relative permeability drainage fracture complex reservoir condensate...

... stability heater flow rate technical conference Job failures in deep, hot wells can be caused by "sand-outs." These sandouts, or "screenouts," can result from inadequate carrying capacity (reduced viscosity) or too high a fluid loss (dehydration) for the polymer loading of the fracturing fluid...

... measurement injection gas reservoir surveillance characteristic velocity reservoir simulation petroleum engineer journal flow rate production monitoring dimensionless time Gas injection is increasingly being applied as a secondary or tertiary recovery technique. In many applications injection...

... ratio reservoir simulation flow rate error analysis flow in porous media estimation penneability fluctuation random number water saturation measurement error oil production fluid dynamics artificial intelligence standard deviation machine learning relative permeability upstream oil...

... enhanced recovery alkalinity loss alkaline flooding zdenka novosad alkaline flood chemical flooding methods naci brine effluent na concentration detennination sodium concentration ion exchange flow rate Maintaining an effective level of alkalinity during an alkaline flood is of prime...

... flow rate resistance boundary pressure multilayer system incompressible flow crossflow total flow rate reservoir total rate equation semipermeability vertical permeability petroleum engineer journal Real reservoirs normally consist of many layers with dif ferent permeabilities...

... and to maximize oil yield. Extreme variations in oil shale grade that may be encountered as a function of depth can be dealt with by appropriate changes in the composition and flow rate of the inlet gas. In addition, we show that substituting oxygen diluted with steam or CO 2 (for air or air diluted with steam...

..., as the GLR increases for a fixed set of flow and fluid parameters, the production increases until the friction losses become too high and the reversal of gradient starts. Above this optimal GLR, the production caused by gas lift decreases. If GLR and flow rate arrays are properly selected, the maximum flow...

... 7 2 1983 1 8 1983 1 8 1983 Copyright 1983, Society of Petroleum Engineers permeability diagonal case kpa compressibility grid system gridblock icvf fracture source sink hydraulic fracturing ellipse psia equation upstream oil & gas flow rate dimensionless...