... to the determination of the mud window based on well logging data and core tests by taking into account the plastic behavior of rocks. An important result of this study is the determination of the possibility of expanding the mud window when taking into account the plastic criterion of rock failure. wellbore...

... criterion effectiveness upstream oil & gas criteria rescue support hydrocarbon production requirement incident operation indicator information current information russian federation means efficiency criteria actual result aso system Introduction The consequences of incidents...

... to be placed and run the procedure. After drilling and putting into operation of first wells, we solve the optimization problem for further producers to be drilled. We discuss cases when it is rational to use this procedure instead of using a regular well pattern. machine learning criterion constraint...

.... The method presented in this paper is based on the results of multivariate calculations in a hydrodynamic simulator and the use of correlation models of machine learning (ML). upstream oil & gas calculation simulator npv artificial intelligence criteria complex optimality criterion...

... revealed that ISC phenomenon has significant effect in treatments with low viscous fluids (e.g., linear gel or slick water). Meanwhile the effect diminishes as the reservoir temperature increases. artificial intelligence upstream oil & gas fracture wall simulator proppant criterion fiber...

... the gas-gathering system option. artificial lift system drawdown flow rate premium filter reservoir thin low-pressure gas deposit gas well deliquification efficiency criterion promising method operation deposit upstream oil & gas separator hydrodynamic model application...

... characterization hydraulic fracturing wellbore design criterion internal friction angle upstream oil & gas simulation fracture propagation elastic-plastic property microscale rock sample destruction reservoir rock complex reservoir heterogeneous material mineral composition plastic strain...

... criterion siamese network interpretation geologist pearson correlation coefficient algorithm well log spectrum horizon position lateral section log correlation wellbore Introduction When started, the algorithm determines the interpretation start depth and required methodology based...

... Abstract A modified strength and destruction criterion in the form of the Mohr nonlinear dependence for multilayer rocks has been developed in this work. The criterion for rocks with evident anisotropy is a passport of strength, as it is adopted in the form of the envelope equation for Mohr's...

... Abstract A comparison of the criteria for the shear strength (linear and nonlinear) with different stress-strain state and variations of the parameters of fractures. Often, the first criterion is applied in petroleum engineering because of its "availability" in the parameters used, which do...

... The lithological and petrophysical model was tested by several well logging methods. The analyzed carbonate reservoirs were first differentiated by lithology due to high lithological heterogeneity. Then the criterion of textural heterogeneity was used to identify different reservoir classes...

... Table 6 Intervals for significant geological and technological parameters values changing in which KSPEO application success is more than 50 % (for the Kullback criterion values more than 0.5) Table 1 Bottom-hole formation zone treatment effectiveness criteria...

... criterion for different angles between hydraulic fracture and fault [ 3 , Fig. 3 ]. Red rectangle highlights situation typical of the field. Figure 12 Discrete fracture network (DFN) created on the basis of the faults in the field Conclusion Pre-conditions of geomechanical model creation...

...) for the accumulated oil production from the group of wells HM (left) and the group of surrounding wells of one HS (right) Figure 4 Distribution of oil production from the forecast wells, along the ordinate axis, cumulative oil production, along the abscissa - the reciprocal of the adaptation criterion...

... wells Figure 7 Comparison of the criterion with the operation data of the wells with tubing Ø114mm with a horizontal and subhorizontal wellbore longer than 50m Figure 8 Comparison of the criterion with the operation data of the wells with tubing Ø114mm with a deviated wellbore 30-70...

... and yield point (von Mises criterion). Blue is octahedral stresses before production, green stars - at steady-state flow and BHP of 18 MPa, red circles - at steady-state flow and BHP of 8 Mpa before fracture width decrease and red diamonds after fracture width decrease. Figure 3 Pressure...

... the investigation results to determine the mechanical characteristics of multilayered shales. The results are based on shearing and breaking off tests along certain planes of specimen. The modified Mohr-Coulomb criterion including an alternating angle of internal friction and variable cohesion is used as a strength...

... are not modified. The new approach is implemented as an extension block in a general purpose reservoir simulator. Implementation of the feature allows to model effects of phase transition hysteresis in compositional simulations. Criterion for determining phase transition type (equilibrium or non-equilibrium...

... waterflooding fractured zone Artificial Intelligence Thickness Upstream Oil & Gas enhanced recovery criterion tectonic fault Injection Rate reservoir Efficiency injection well hypothesis displacement characteristic flow rate water cut oil rate severnye buzachi field...

... machine learning Upstream Oil & Gas absolute permeability criteria flow in porous media discrepancy criterion water saturation porosity ill-posed problem Fluid Dynamics objective function deviation coefficient reservoir evaluation equation log analysis optimization problem...