...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper IPTC 19854, “Modeling and Prediction of Resistivity, Capillary Pressure, and Relative Permeability Using Artificial Neural Network,” by Mustafa Ba alawi, SPE, King Fahd University...

...-permeability formations is recognized, the authors also incorporate capillary pressure in their model. In addition to pressure-dependent permeability variation, results explain how capillarity is significant in understanding fluid migration, the trapping of fluid in the matrix, and, consequently, restimulation...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 190242, “Simulation of Water and Condensate Blockage and Solvent Treatments in Tight Formations Using Coupled Three-Phase Flash and Capillary-Pressure Models,” by Sajjad S. Neshat, SPE...

... on the principle of capillary-pressure/saturation hysteresis on the drainage/imbibition process in a water-wet system. Introduction Many discovered oil and gas fields are found to have gone through complex fluid-fill histories where residual hydrocarbons are observed below the FWL. To add to the complexity, some...

..., a new approach attempts to extract the fundamental properties of individual pore systems. The key idea centers on identifying the governing pore systems from capillary pressure curves and permeability measurements. The approach results in the ability to predict permeability continuously as a function...

... pressure, the base case is under miscible condi- tions with zero capillary pressure. Water saturation slightly affects the recovery factor, which might be because of differ- ences in the compressibility of water and oil and CO2 being soluble in water. Field-Scale Numerical Modeling A synthetic field case...

...Chris Carpenter This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 170819, “Investigating Aperture-Based Stress-Dependent Permeability and Capillary Pressure in Rock Fractures,” by Da Huo, SPE, Boxiao Li, SPE, and Sally M. Benson, SPE, Stanford...

... weakening caused by lubrication or annihilation of capillary pressure during water injection However, salt dissolution during water injection was quickly discarded as being at the origin of the tremor because the reservoir intervals do not contain halite. Carbonate dissolution was not pronounced and could...

... because a representative three-phase saturation model is required to predict relative permeability and capillary pressure as water and gas saturations increase and decrease alternately. Three-phase relative permeability and capillary pressure data are extremely difficult to measure experimentally. Even...

... task, and a detailed understanding of reservoir heterogeneity is still lacking. In this study, the effect of static rock type and sample size was investigated on special-core-analysis laboratory (SCAL) data derived from capillary pressure and resistivity-index experiments at reservoir temperature...

... application near-wellbore region remediation of hydrates pressure drop connate water capillary pressure reservoir permeability injection salt precipitation water production University 1 11 2011 1 11 2011 1 11 2011 1 11 2011 2011. Society of Petroleum Engineers JPT...

... unconventional-gas-well stimulation capillary pressure faculty member fracture relative permeability reduction University recovery damage mechanism permeability 1 10 2011 1 10 2011 1 10 2011 1 10 2011 2011. Society of Petroleum Engineers 86 JPT OCTOBER 2011 After...

... description of the initial conditions in the reservoir. Three types of initial fluid distributions can be defined and classified according to their distinct behavior. The main challenges are to select the correct oil/water capillary pressure function for deriving the water saturation and to find the correct...

... function of the caprock. Potential leakage paths are by migration along the wellbore as a result of poor cementation and flow through the caprock. Capillary pressure data, which are critical for prediction of gas leakage through the caprock, are seldom available and yet are necessary. An in-situ method...

...Dennis Denney This article, written by Technology Editor Dennis Denney, contains highlights of paper OTC 19234, "Capillary Pressure Measurement in Petroleum-Reservoir Cores With MRI," by Prisciliano F. de J. Cano Barrita, Bruce J. Balcom, and Michael J. McAloon, University of New Brunswick...

... pressures. Past simulations and experiments have reported the effect of gas displacement of water in the cleanup of water blocks in gas wells. Those studies showed that when the drawdown in the gas well is significantly larger than the capillary pressure, the cleanup is faster. However, when the drawdown...

... evaluation drillstem/well testing production control differential capillary pressure reservoir rock prediction water holdup permeability formation-pressure-test data stylolite layer vertical permeability pressure differential differential pressure assessment production monitoring drillstem...

... Lumpur, 29-30 March. 1 5 2004 1 5 2004 1 5 2004 1 5 2004 2004. Society of Petroleum Engineers correlation information laboratory microstructure core analysis pore porosity digital core laboratory capillary pressure permeability pore space calculation artificial...

... of Fig. 2 Pore space of the rotated magnitude finer than the representative sphere pack . To verify this algorithm, a computer-gen- sphere radius. erated packing of equal spheres was used. The spheres are packed in layers. Every Dimensionless Capillary Pressure Fig. 3 Stick-and-ball diagram of layer...

... formulation gas injection method discontinuity pvt measurement miscible displacement single-phase hydrocarbon simulation reservoir simulation gas injection hydrocarbon gas lift oil gas implicit compositional simulation robustness simulator capillary pressure equation upstream oil & gas...