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Keywords: pressure drop
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Journal Articles
SPE J. 25 (06): 804–822.
Paper Number: SPE-12950-PA
Published: 01 December 1985
... this and have the added feature that solutions are obtained directly in terms of the dimensionless pressure drop, PD, not the usual b (or bD) groups. ......................(2) .......................(3) .........................(4) The quantity rsw is an equivalent or pseudospherical wellbore radius used...
Journal Articles
SPE J. 25 (06): 909–916.
Paper Number: SPE-12585-PA
Published: 01 December 1985
...A.T. Watson; P.D. Kerig; R.W. Otter Homogeneous core samples are needed for EOR experiments. We have devised a simple test for detecting the presence of nonuniformities in cores. The test consists of presence of nonuniformities in cores. The test consists of measuring the pressure drop across...
Journal Articles
SPE J. 25 (04): 603–613.
Paper Number: SPE-11233-PA
Published: 01 August 1985
... years have studied this idea further in both laboratory and field, and there is general agreement that the method holds great promise for selected plugging or diversion of flow from high-permeability streaks. Although the literature points out that large pressure drops ate required to move foam through...
Journal Articles
SPE J. 25 (04): 491–501.
Paper Number: SPE-11625-PA
Published: 01 August 1985
... polymers may form a layer of filter cake on the fracture wall, as shown in Fig. 1. If the fluid pressure is P f and the original reservoir pressure P R , the total pressure drop, tl.p=Pf-PR, is a result of the flow resistance of the cake and pressure drop in the porous medium. The classical theory treats...
Journal Articles
SPE J. 25 (04): 482–490.
Paper Number: SPE-10259-PA
Published: 01 August 1985
... development demonstrates that the fracturing-fluid coefficient and filter-cake coefficient can be obtained only if the individual pressure drops can be measured during a typical fluid-loss test. Introduction In a hydraulic fracturing treatment, the development of fracture length and width is strongly...
Journal Articles
SPE J. 25 (03): 437–444.
Paper Number: SPE-12133-PA
Published: 01 June 1985
... drillstem/well testing pressure drop agarwal approximation equation fenske conservation method ramey type curve derivation source function upstream oil & gas pressure transient solution procedure fenske method storage The Fenske Conservation Method for Pressure Transient Solutions...
Journal Articles
SPE J. 25 (03): 419–426.
Paper Number: SPE-12711-PA
Published: 01 June 1985
... and impermeable internal boundaries are considered. Dimensionless pressure drop curves for both boundary conditions are presented. For the case of a line source producing near a constant-pressure internal boundary, producing near a constant-pressure internal boundary, dimensionless curves for the instantaneous...
Journal Articles
SPE J. 25 (02): 281–290.
Paper Number: SPE-10902-PA
Published: 01 April 1985
... of problem. He presented the formulas to describe the pressure behavior of the unsteady-state flow phenomenon for fluid movement through two sands in series in a radial configuration, with each sand of different permeability. Mortada studied the interference pressure drop for oil fields located...
Journal Articles
SPE J. 25 (02): 291–302.
Paper Number: SPE-11495-PA
Published: 01 April 1985
... to permeability of the different layers. The modelpredicts the fractional oil recovery, the water cut, the totalvolume injected, and the change in the total pressure drop, or the change in injection rate at the water breakthroughin the successive layers. A systematic procedure forordering of layers and performing...
Journal Articles
SPE J. 25 (01): 89–100.
Paper Number: SPE-11014-PA
Published: 01 February 1985
... water saturation capillary pressure term saturation timestep pore space procedure pore flow in porous media fluid dynamics equation pressure drop displacement upstream oil & gas constraint artificial intelligence capillary pressure Two-Phase Flow In Random Network Models of Porous...
Journal Articles
SPE J. 25 (01): 27–38.
Paper Number: SPE-12334-PA
Published: 01 February 1985
... conservation equations for each phase, and solved them numerically by using finite difference techniques. SPEJ P. 27 1 2 1985 1 2 1985 1985. Society of Petroleum Engineers gas flow rate riser severe slug flow upstream oil & gas liquid slug pressure drop slug flow flow rate...
Journal Articles
SPE J. 25 (01): 78–88.
Paper Number: SPE-11332-PA
Published: 01 February 1985
... perpendicular waterflooded region reservoir pressure horizontal earth stress fracture thermoelastic stress finite height injection well cylinder enhanced recovery fracture length resistance elliptical cross section permeability thickness upstream oil & gas earth stress pressure drop...
Journal Articles
SPE J. 25 (01): 46–54.
Paper Number: SPE-11648-PA
Published: 01 February 1985
... conditions prevail, particularly with respect to stress and geologic features such as natural fractures and material anisotropy. Analyses of these data show that the pressure drop along the fracture length is much larger than predicted by viscous theory, which currently is used in models, This apparently...
Journal Articles
SPE J. 25 (01): 125–131.
Paper Number: SPE-11759-PA
Published: 01 February 1985
... pressure drop component as a result of the physical skin and the nondarcy flow effect. In the case of pressure values, an equation is derived that gives the buildup time, At, when the field-measured wellbore pressure becomes equal to the wellblock pressure in a three-dimensional simulator...
Journal Articles
SPE J. 24 (06): 677–684.
Paper Number: SPE-11223-PA
Published: 01 December 1984
... to the center, this work shows that significant errors may arise in situations where the wells are close to the boundary. Dimensionless pressure drops are obtained by numerically inverting solutions in Laplace space and are plotted as functions of dimensionless time. From the wellbore pressure behavior it can...
Journal Articles
SPE J. 24 (06): 697–706.
Paper Number: SPE-12579-PA
Published: 01 December 1984
... be determined from pressure drop data with an accuracy depending on the pressure drop data with an accuracy depending on the mobility ratio. Exponents in a power function representation of the relative permeabilities can he determined from WOR data alone but not nearly so accurately as when pressure drop...
Journal Articles
SPE J. 24 (05): 575–581.
Paper Number: SPE-10258-PA
Published: 01 October 1984
... these deficiencies and perform specifically for testing crosslinked fracturing fluids. SPEJ P. 575^ fracture diameter fracturing materials pipe viscometer pressure drop rotational viscometer hydraulic fracturing preparation noncrosslinked fluid gel flow curve viscometer fracturing fluid shear rate...
Journal Articles
SPE J. 24 (03): 249–255.
Paper Number: SPE-10962-PA
Published: 01 June 1984
... been added to the loop. The magnetic flowmeter shears the test fluids much less than the gear meter and can thus be left on continuously when testing shear-sensitive fracturing fluids. A differential pressure transducer measures pressure drop over the 20-ft-long [6.1-m], 0.957-in.-ID [2.43-cm] test...
Journal Articles
SPE J. 24 (02): 141–152.
Paper Number: SPE-8939-PA
Published: 01 April 1984
... under conditions of constant pressure drop, /1p co during the test. Filtration can be more generally expressed in terms of total filtration volume per unit area, V. Then the cake transmissibility in the test is T~ = 2Crn/ [/1p c V(t) J. (2) 2. Experiments indicate 8 that in dynamic filtration...
Journal Articles
SPE J. 24 (02): 191–196.
Paper Number: SPE-9808-PA
Published: 01 April 1984
... surfactant crude oil saturation foam cosurfactant reservoir pressure drop experiment chemical flooding methods CO2 Mobility Control Stan E. Dellinger, New Mexico State u. John T. Patton, SPE, New Mexico State U. Stan T. Holbrook, New Mexico State U. Abstract As early as 1955, surfactants were...

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