.... The approach presented here relies on an empirical correlation that was originally developed to predict the liquid hold-up for multiphase upward flow affected by partial flow reversal in long vertical pipes. In general, the correlation can be used as an alternative method for calculating the gravitational...

... there have been some attempts to study the effect of capillary pressure on phase behavior, it has not been clearly understood in the application considering multiple components in tight oil reservoirs. In this work, we present a methodology to calculate the phase behavior of CO 2 /hydrocarbon systems...

... models in simulation tools. In this work, we analyze the numerical aspects of including capillarity phenomena in VLE calculations in an effort to arrive at robust and efficient algorithms for stability analysis that can be used in compositional modeling/simulation of unconventional reservoirs. When...

... isotherm Upstream Oil & Gas calculation shale Exhibition complex reservoir Phase Behavior fugacity chemical potential vapor-liquid equilibrium equation unconventional reservoir workflow capillary pressure pore size distribution interaction Introduction The Eagle Ford play...

... Abstract Numerical experiments are performed to evaluate the capability and examine the computational costs and tradeoffs of numerical and analytical approaches for apparent gas permeability calculation. Considering the dominancy of capillary force in pore level studies, two-phase distribution...

... during hydraulic fracturing treatments. fluid modeling proppant concentration equation of state friction fracturing materials fracturing fluid transition viscosity calculation fluid property flow regime pressure drop bottomhole hydraulic fracturing Upstream Oil & Gas pipe...

... from the sonic wave arrival time is then used to calculate the elastic rock property data. It is essential to obtain good quality data as the compressional and shear wave travel time are strong functions of borehole size, tool size, velocity detection and calculation methods. The main purpose...

... to be obtained, however, net pay and skin ( r wa calculation) must be known, and boundary-dominated flow must have been reached. For single-phase coal reservoirs exhibiting instantaneous desorption, and that have a static permeability, the FMB may be linearized during boundary-dominated flow by modifying...

... volumes of oil and gas. The starting point for designing these treatments is an understanding of the in-situ stress profile. To calculate the in-situ stress profile, one must have an understanding of the mechanical rock properties and the pore pressure variations throughout the wellbore. Pore pressure can...

... can be transformed into an equivalent single rate data set for direct analysis using standard methods based on the associated derivative curve. The transformation requires nothing more than careful superposition and the calculation of the normal radial flow derivative curve. We show that this approach...

... numbers (i.e., high rates and/or small tubing reel) the intensified secondary flow increases the frictional loss significantly over those predicted by Poiseuille flow calculation. Abstract The importance of the pressure loss in the design of treatments for various field applications while using non...

... development, flood operations and performance. reservoir pressure nbdu enhanced recovery case history reservoir calculation north buck draw unit ooip sweep efficiency injection powder river basin injection project fulco spe 55634 operation spe 55634 permeability miscible gas flooding...

... equation upstream oil & gas drainage area water production reservoir simulation water saturation straight line calculation spe 55605 production data drillstem testing average reservoir pressure initial reservoir pressure drillstem/well testing Introduction Several different methods...

... can be calculated. Stabilized (bounded) flow equations are also presented for forecasting. The solutions and type curves developed are for both infinite-acting and stabilized flow with either constant Pwf or constant rate. Several field cases are shown with example calculations. P. 265...

... calculation net pressure Introduction The experiments and research associated with the GRI/DOE Multi-Site Hydraulic Fracture Diagnostic Project (M-Site Project) were initiated in 1993 in an effort to 1) develop and verify technology for characterizing the geometry and growth of hydraulic fractures...

... pressure drop calculation. To determine the actual pressure drop across the perforations, designers use a real-time spreadsheet calculation. This paper reviews limited-entry treatments pumped in 34 wells that verify spreadsheet calculations. Changes in the perforation discharge coefficient and diameter...

.... Here techniques for determination and assignment of effective relative permeability and capillary pressure on different scales of heterogeneities are presented and discussed. Many authors have considered scales of heterogeneities, their influence on fluid flow, and calculation of effective properties...

... reservoir surveillance reservoir characterization calculation permeabil ity society INTRODUCTION Reservoir pressure testing is conducted throughout the producing life of most oil and gas fields. The testing history for McElmo Creek is shown in Fig. 1 . The periods of high test frequency...

... to be large enough to switch the directions of maximum and minimum horizontal stresses (in the vicinity of the original vertical fracture). This effect has been considered elsewhere. 14 , 15 In this report we use the calculation of induced stress associated with a propped hydraulic fracture in a coalbed...

... correlation formulation cell 10 upstream oil & gas black oil pvt property calculation enhanced recovery pvt property gas phase pvt measurement society of petroleum engineers psia saturation compositional simulator reservoir simulation compositional model equation spe 25858...