... of overpressure created, which is quite difficult to be calculated. The vertical depth where pore pressure starts to deviate from hydrostatic values is not constant, this might be explained by the complex clinoform geology of Achimov layers. In one stratigraphic unit the pore pressure anomaly can differ...

... on the problem of the degree of the influence some factors have on zones of potential drilling risks. These factors include: dependencies between static and dynamic elastic moduli and strength properties; parameters standing for pore pressure distribution and tectonic stresses. Imitational geological...

.... Characteristics of pore pressure and stress profile, expected difficulties Abstract Construction of offshore exploration wells in harsh pressure and temperature environment involves a high risk of geological complications. This is particularly relevant for exploration operations in insufficiently explored...

... temperatures, image logs in the deviated boreholes, etc.), the second part of the work is to be performed, which would include the analysis of the drilling results and the assessment of the cap rock behavior, pore pressure and porosity-permeability changes due to steam injection. reservoir...

... frames and trusses. logic & formal reasoning hydraulic fracturing reservoir geomechanics logic programming artificial intelligence upstream oil & gas pore pressure porosity node computational domain calculation coefficient reservoir characterization flow in porous media fluid...

... decisions over a given time span, we propose utilizing the appropriate objective function together with an integrated modeling approach such as presented here. hydraulic fracturing fracture length optimization problem production revenue completion design pore pressure total number stimulation...

... to separate the interval of high breakout risk and total loss interval of fractured reservoir with abnormally low pore pressure. Real time pore pressure and fracture pressure prediction service in the lower sections allowed to monitor hole condition in real time and provided timely recommendations for well...

... Abstract For the offshore prospecting and appraisal well drilling optimization, an approach was proposed, included Pore Pressure prediction based on 2D processing of a seismic surface data. This approach was used for timely detection of sharp changes in Pore Pressure with depth, under expected...

... reservoir condensate reservoir Wellbore Design eastern part geomechanical modeling mud loss wellbore stability formation temperature complication pore pressure mud density salt body influence Drilling wellbore integrity Upstream Oil & Gas calculation thermal stress reference well...

... Reservoir Characterization modeling pore pressure compression test core plug depletion compaction triaxial compression test productive layer mechanical property mechanical core testing reservoir geomechanics testing program failure mode subsidence deformation wellbore design wellbore...

... conditions and results of laboratory experiments № of well Rock sample overburden pressure, MPa Initial pore pressure, MPa Initial effective pressure, MPa Reservoir temperature, °C Multiple of permeability decrease at pore pressure decrease. Critical effective pressure σ′, MPa 48 Dubrovskaya...

... mechanisms (after Hoesni 2004 ). Figure 9 Velocity-density trend based on well data from Ning201 and Ning203. Figure 10 The predicted pore pressure profile for well Ning201. Figure 12 Validation of 3D pore pressure cube by wells from pad 10. Figure 13 Validation of 3D...

...-Perkins correlation ( Zhang, Peng, 2007 ) Figure 7 Analysis of pore pressure within the productive horizon for wells No. 3, 4, 5, 6, 7 and 8 (productive horizon is highlighted in yellow; points show the results of the measurements of reservoir pressure within the productive horizon, the dark...

... with minerals and fluids; fractures classification (critically stressed fractures are marked red); pore pressure (blue line), minimum horizontal stress (green line), vertical stress (black line), lower and upper boundaries for maximum horizontal stress (red and purple lines respectively). Abstract...

... formulation Cost Minimization stability drilling fluid chemistry drilling fluid selection and formulation Upstream Oil & Gas complex approach invert emulsion drilling fluid Reservoir Characterization drilling fluid property pore pressure optimization geological condition microcolmatant...

... Modeling & Simulation Artificial Intelligence reservoir geomechanics complex reservoir hydraulic fracturing Reservoir Characterization shale gas pore pressure experiment anisotropic shale numerical model society of petroleum engineers Upstream Oil & Gas natural fracture...

... model of oil and gas field characterized by naturally fractured rocks is considered. Effect of mechanical parameters on the production rates is analyzed using a set of computational models, the appropriate sections of oil and gas field. The effect of changes in the pore pressure on the collector...

.... The analysis of permeability change altering the cumulative production was carries out. Upstream Oil & Gas pore pressure geomechanical modeling horizontal stress Artificial Intelligence modeling calculation fluid pressure Reservoir Characterization cumulative production microcrack...

... consider one of possible approaches to solve coupled hydrodynamic and geomechanical problem. reservoir geomechanics diagonal element Simulation Reservoir Characterization Upstream Oil & Gas hydrodynamical simulation Artificial Intelligence vicinity pore pressure gradient pore pressure...

... of model construction are described: (a) a construction of mechanical rock properties model; (b) a way to determine rheology, model boundary conditions, external loads and calculate stress state; (c) an evaluation of pore pressures. Moreover possible methods of improving the model quality are discussed...