..., however, gathering information on fluid heterogeneities and phase behaviors is a challenging process that requires numerous fluid samples and associated laboratory analysis. Although pressure gradients are often used to evaluate in-situ fluid densities, contacts, or connectivity, this method may...

..., was built, and a pan-cake-shaped salt body with a diameter of 7 km was embedded in the model. Trajectory optimization was performed once the vector distribution of principal stresses was provided. At the wellbore section scale, a submodel was built and the minimum safe mud-weight gradient was numerically...

... sampling can be performed without completing the well by using a formation tester in open hole or performed after completion. In addition, surface samples acquired by flowing the well tend to integrate the fluid over large vertical intervals in the well thereby precluding measurement of fluid gradients...

..., was combined with porous flow. We used this model to investigate wellbore stability and minimum safe mud weight gradient. Core samples from wells in the Tambaredjo NW field of Suriname were analyzed. The results of the analyses were used to develop a nonlinear relationship between material parameters...

..., color gradient analysis in oil columns becomes vital to discern reservoir complexities by means of integrating advanced asphaltene science with DFA Fluid Profiling. In this paper, a thermodynamic asphaltene grading model was developed to describe equilibrium distributions of heavy ends in oil columns...

... pressure prediction pore pressure model trend line Reservoir Characterization Upstream Oil & Gas mechanism intermediate vsp well location current td spe 103856 Drilling south china sea gradient probability multistage approach petroleum engineer vsp inversion case study society...

... pressure Upstream Oil & Gas deviation sand concentration pressure gradient drilling operation production control pressure production monitoring spe 104253 slurry viscosity comparison friction pressure gradient reservoir surveillance carbon steel gel reel newtonian slurry production...

... membrane efficiency dependence interaction wellbore design concentration anion permeability fluid loss control gradient petroleum engineer reservoir characterization semi-permeable membrane efficiency dependence cacl 2 Background and past work Osmosis has long been recognized as a means...

... formulations shrinkage alberta dusseault nawrocki spe 64733 cement formulation radial stress gradient cement shrinkage mechanism upstream oil & gas circumferential fracture leakage interface fracture cement cement behavior casing and cementing spe 64733 cement property gas leakage...

... the sand production mechanism in the dynamic detachment process. Within the new model formulation, sand is considered to be produced because of either a large porosity gradient or a large pressure gradient. The 1-D steady-state solution of the new model is also presented; it may be used for simple...

... oil & gas gradient pipeline berau bp amoco drillstem/well testing Extensive lab measurements were conducted to assess the fluid composition variations in the fields. The measurements obtained included 117 basic gas compositional analyses, 57 liquid compositional analyses, 21 constant...

... of rheological parameters. P. 343 wellbore storage skin effect equation fractal reservoir log-log plot drillstem testing pressure transient testing non-newtonian viscoelastic fluid straight line gradient laplace transform relaxation model porous media drillstem/well testing dimensionless...

..., the perforations or slots on the well surface cause a reduction in the pressure gradients proportional to their area. The wellbore pressure gradients increase with influx from perforations but unless the ratio of the influx rate to the wellbore flow rate is sufficiently large, pressure gradients are lower than...

... and acquisition noises. An interval velocity volume is generated from the smoothed RMS velocity volume. Calibration using offset wells is used to transform 3D seismic velocity into 3D pore pressure gradients. In addition, we have also developed an algorithm to generate minimum horizontal stress. Using difference...

... the three wells drilled in South China Sea relied on pore pressure and fracture gradient predictions that used seismic and sonic input data for models of compaction and borehole stresses. Pressure and stress gradients can be successfully predicted by quantifying the compaction trends and burial rates...

.... The work also demonstrates that the recovery from the gascap is minimally affected by heterogeneities in the reservoir. This is shown using geostatistical reservoir models. The effect of heterogeneities on oil recovery is also documented. fluid dynamics gascap saturation pressure gradient flow...

... geology drilling fluid selection and formulation fluid loss control gradient hydraulic gradient Introduction Shales account for 75% of drilled sections and cause 90% of wellbore instability-related problems. It is an industry-wide problem affecting exploration through to development drilling...

... tubular design optimization casing design specimen procedure collapse rating pipe compound drilling operation specification gradient thread compound liner arco casing and cementing design factor manufacturer upstream oil & gas optimization artificial intelligence geologist...

... a generalized three-dimensional anisotropic yield criterion. The design code enables the selection of the most optimum borehole orientation and wellbore fluid gradient to avoid fracture initiation. It is also useful in conducting sensitivity studies, particularly when the data is scanty. A remarkable finding...

... in relaxed sedimentary basins. There are several recognizable differences between Badin and relaxed sedimentary basins, and these vary from subtle to gross. These include: High fracture gradients. Bore hole breakout and its ability to often predict the location of porosity/permeability. Bore hole...