... wellbore repellor architecture upstream oil & gas planning & scheduling reservoir geomechanics ensemble attractor well planning constraint proc sidetrack spe annual technical conference intersection exhibition azimuth algorithm Introduction Many sources of uncertainties...

... by using bedding plane data (dip angle and dip azimuth) and well trajectory information (well inclination and azimuth). Based on single plane of weakness theory, the stress distributions around deviated wellbores in laminated shales are analyzed to show that failure can occur either along or across...

... for the wellbore-scale stress analysis. Results indicate that despite their common use, the uniaxial models may return significantly erroneous predictions of the in-situ stress state in depleted reservoirs. In particular, the in-situ stress changes are found to strongly depend on the geological azimuth and radial...

... to calculate tortuosity are based on the predetermined shape of the trajectory using the minimum curvature method. Wellbore undulation (geometrical tortuosity) is determined using geometrical measurements such as inclination, azimuth, and calculated displacement; however, much of this wellbore undulation...

... a transitional faulting regime. Variances in stress settings corresponded to the depths just above the transition zone, where significant variations were observed in shear wave azimuthal trends thereby indicating the presence of potential fracture clusters, some of which were revealed to be intersecting...

... are controlled by sophisticated sensor technology that enables precise steerability. The RSS platform includes multiple directional sensors and real-time processors capable of reducing hole tortuosity and optimizing reservoir exposure while drilling. It also includes automated inclination and azimuth control...

... dip induction log azimuth inversion resistivity log horizontal resistivity regularization resistivity anisotropy Introduction Triaxial induction logging has been in service for two decades. A single-array multicomponent tool was introduced in 2000 (Kriegshäuser et al. , 1999...

... measurement while drilling prototype trajectory calculation positional uncertainty survey error trajectory design lateral error model drillstring design complex reservoir upstream oil & gas error source standard error model magnitude interference azimuth society of petroleum engineers...

... drilling data pressure response RMSE fracture new well Signature child well parent well society of petroleum engineers mechanical specific energy lateral pressure depletion depletion feature MSE fracture pair stress direction localized depletion azimuth reservoir geomechanics legacy well...

... in space, the strain responses were found to agree with and confirm the dominant planar fracture geometry proposed for the Montney, with hydraulic fractures propagating in a direction perpendicular to the minimum stress. However; several unexpected and inconsistent off-azimuth events were also observed...

... azimuth optimization problem autonomous directional drilling trajectory marck inclination field test society of petroleum engineers exhibition Introduction Recent technologies and market developments within the directional drilling industry have had great influence on the performance...

... drilling field test accuracy Drilling Equipment attitude error model latitude gyro survey drilling data acquisition gyro system Upstream Oil & Gas solid state gyro requirement pitch angle Standard Deviation gyro gdis error model azimuth drilling measurement drilling operation GDIS...

... directional drilling system. Directional Drilling curvature simulator algorithm drilling operation trajectory deviation factor hardware simulator Upstream Oil & Gas survey method actual path inclination automation azimuth prototype software simulator Exhibition application path...

... model flow in porous media Fluid Dynamics algorithm particle multiple realization fracture intensity fracture network implicit fracture network Modeling & Simulation Upstream Oil & Gas percolation analysis upscaled permeability aquifer permeability fracture azimuth effective...

... sandstone against overgauged hole condition observed in offset wells. Stable mud weights to avoid breakouts are in range of 11.6 to 12.5 ppg depending on well azimuth and deviation across different shale layers. Variations in minimum stable mud weight are in the range of 0.3 to 0.5 ppg based on well azimuth...

... of these methods is tied to a specific type of tool (e.g., dipmeter tools or partial-wellbore-coverage pad-type imagers), and they are unreliable to process high-angle and horizontal (HAHz) wellbore azimuthal image data. This article presents a new method to detect dips in HAHz borehole images. Although...

..., the detection order and measured depths are reversed. This effect has been verified using Monte-Carlo N-Particle (MCNP) modeling code ( Radtke 2006 ). This offset in measured depth is a function of the relative difference in EPL, the azimuthal orientation/relative bearing of the detectors with respect to top...

... coordinate system over ( k ρ ,φ ). Gaussian quadrature is then applied to the integration in the azimuthal direction first and then to the one over k ρ , sequentially. The integration over k ρ is similar to Sommerfeld integrals, except that there are no Bessel functions in our formulation. Here, we use...

... to capture 3D formation properties, hydraulic fracture propagation and interaction with a discrete fracture network (DFN), reservoir production/depletion, and evolution of magnitude and azimuth of in-situ stresses using a 3D finite-element model. The integrated workflow begins with a geocellular model...

... more complicated due to the effect of well inclination and azimuth on the mud weight window. Analytical model results are presented in this paper for mud weight window calculations, considering formation pressure depletion, initial in-situ stress ratio (SHmax/Shmin), well inclination and azimuth...