... fracturing fluid gas reservoir true vertical depth fracture propagation fracturing materials proppant fracture wall reservoir leakoff coefficient viscosity fracture propagation equation proppant coefficient Introduction A fully coupled numerical framework to simulate the hydraulically...

... of the casing, r p is the perforation radius, r wb is the wellbore radius, v r is the fluid velocity into the reservoir, p is the pressure, f is the coefficient of friction, g r is the component of acceleration caused by gravity in the flow direction, ĉ pf is the heat capacity of fluid, β...

... of well performance. In this paper, we discuss how we combined the regression analysis results with probabilistic methods to predict well performance. The model converts the deterministic regression coefficients into probabilistic distributions to account for parameters not considered in the original...

... effect on the elongation/shortening of the work string. The time-dependent elongation/shortening can change the work string from static to dynamic condition. Due to the fact that the dynamic friction coefficient is less than the static friction coefficient, it is expected that the released friction force...

... 3.3%, which increases to 3.5% in about 3 cycles. The recovery factor after 1000 days by primary depressurization with production pressure of 1000 psi is 11.6%, which is in agreement with existing studies. The recovery increase can be fit by a two-parameter exponential function and the rate coefficient...

... & gas porous rock tortuosity numerical solution best estimate value fluid dynamics coefficient intrinsic permeability spe 144253 flow in porous media apparent permeability equation gas pressure variation application determination core sample permeability Introduction Intrinsic...

... cumulative production prediction history matching gridblock History coefficient infill drilling geological model production data garden plain field infill drilling potential drillstem/well testing infill well porosity production rate sensitivity coefficient permeability pressure transient...

... coefficient plot saturation well damage mechanism acid fractured gas condensate reservoir Introduction Acid fracture conductivity is also a strong function of stress. For vertical fractures, which propagate in the x direction, the effective stress is given by: (2) S y ′ = S y...

... coefficient and a reference rate, to quantify the non-Darcy flow in reservoirs accurately. The traditional non-Darcy skin factor, generally applied to model the non-Darcy flow in reservoirs, is employed to describe the non-Darcy flow across completions only. This study shows that the non-Darcy flow effect may...

... fluid dynamics equivalent time derivative scenario field example permeability buildup derivative drawdown derivative equivalent time upstream oil & gas shut-in time coordinate radial flow equation coefficient producing time flow in porous media real time boundary spe 75703...

... with a correlation coefficient of 0.82 based on 80 PVT's data, the first C7+ content correlation showed 9.59 % of average error with a correlation coefficient of 0.98 based on 81 PVT's data, the second C7+ content correlation showed 7.85 % of average error with a correlation coefficient of 0.99 based on 90 PVT's...

... test data analysis requires two plots to directly obtain all the parameters of interest. The formation permeability and the non-Darcy flow coefficient are obtained from the first plot, whereas the skin factor is obtained from the second analysis plot. This work systematically illustrates...

.... They included the non-Darcy flow coefficient, but assumed a skin factor of zero. They also used the LIT or Houpeurt equation (see Eq. (1) ) which gave essentially the same results as the reservoir simulator. Billiter and Lee based the computed deliverability coefficients ( a and b ) on the same equations...

... As derived in Appendix 1 , the theoretical coal well gas decline coefficient is given by: (1) D g = 2 J p p i Z ∗ Z i ∗ G i 1 ( 1 − p Z ∗ d Z ∗ d p ) As discussed in the Appendix, the Z ∗ function employed throughout this study...

... mixture upstream oil & gas artificial intelligence jossi coefficient molecular weight poettmann density gravity dak-eos poettmann-carpenter 10 optimization gonzalez optimized dak-eos katz machine learning lee spe 75721 Introduction Hydrocarbon Gas Viscosity NIST — SUPERTRAP...

... geology orientation wellbore design hydraulic fracturing variation coefficient fracture system and state complex reservoir shmin gas production spe 75704 Introduction The Yufutsu Gas Field area is a low permeability, fractured reservoir located in the southern Ishikari Plain, central...

.... 2 , 3 Rawlins and Schellhardt's 1 equation is given by (1) q s c = C ( p ¯ 2 − p w f 2 ) n , Abstract In this paper, new explicit analytical equations for stabilized and transient deliverability coefficients in terms of formation/fluid...

... model society petroleum engineer russian academy coefficient amplitude composition Introduction The classical approach to simulate the thermodynamic behavior of gas-condensate mixtures consists in the some improvement of the equations of state being a certain modification of the van der...

... as the familiar Vogel dimensionless IPR curve for solution-gas-drive oil reservoirs, with the coefficients of the proposed dimensionless IPR curve being a function of permeability. The proposed current dimensionless IPR curve can be used to predict the deliverability of a gas well using a single-point test...

... values for measured inertial coefficients, (which quantify non-Darcy flow pressure drops) show a scatter of a one to two orders magnitude for a given permeability. Measurements of inertial coefficients (betas) may or may not agree with literature reported values. Use of literature reported permeability...