.... The new method overcomes the two limitations of the conventional methods of van Everdingen-Hurst (1949) , Carter-Tracy (1960) , Fetkovich (1971) , and similar other studies. These methods require apriori knowledge of (1) pressure history at the reservoir-aquifer boundary (oil-water contact or OWC...

... curves are computed and used. This automatic quality control of the OWC points enables the creation of a forward projection of this boundary. A steering advice is calculated, giving a recommendation on how to achieve the desired stand-off and inclination above the OWC as efficiently as possible. All...

... environments, the resultant geology is not layer cake. Formations can pinch out or show considerable lateral variability. In these environments it is extremely challenging and sometimes impossible to track a single layer or boundary. We examine a case study from Alaska in a complex shallow marine depositional...

... DOI. The azimuthal measurements are more sensitive to the anisotropy as well as the position and orientation of contrast boundaries. A UDAR tool usually provides a huge number (from several tens to several hundreds) of multi-spacing, multi-component, multi-frequency measurements, and all of them...

... and recorded data. All inversion results show uncertainty in the exact position of formation/fluid boundaries and inverted resistivity values. Understanding this uncertainty and deploying multiple inversions to mitigate it is essential for attaining high confidence in the quality of results. Multi-antenna...

... Abstract A new definition of the radius of investigation (ROI) is proposed to overcome the ambiguity present in the results from conventional ROI quantification methods. The term ROI is commonly used to quantify the minimum reservoir size or the distance to a potential boundary evaluated...

... considering skin effect and wellbore storage in three classical reservoir types: confined reservoir, semiconfined reservoir, and reservoir with mixed boundaries. Green's function, source functions, Laplace transform, and Duhamel's principle were used to solve the models and obtain analytical solutions...

... = q w D , i q w D , t ( i = 2 , 3 … N ) For RTA, the internal boundary conditions in the MFHW models are modified to approximately satisfy constant BHP flow conditions. The BHP is known and constant, as in Eq.(11) . (10) [ p ¯ w D...

... better represent superposition and finite sized boundary effects than the original 3D Eikonal equation. These solutions allow the use of superposition to extend the single well results to multiple wells. The new solutions to the Eikonal equation more accurately represent multi-fracture interference...

... − T r + 0.81769 ln 1 + 0.31355 + 1 .86745 ω − 0. 52604 ω 2 1 − T r 2 It shall be noted that Eq. 6 has been found to accurately reproduce the experimentally measured multiphase boundaries and swelling factors for solvents-CO 2 -water-heavy...

... (or processors) equal to the number of the cores used for the task. MPI supports point-to-point and collective communications between processors. The common point-to-point communication involves sending data to a processor and receiving data from a processor, which is useful when exchanging boundary values...

... numerical model is representing one-quarter of a fracture. This is highlighted by the red-lined box in Fig. 1 . The model is "1 dimensional", as there are no flow contributions beyond the fractips ( x f = x e ) or beyond the frac height ( h f = h ). Hence, there is only one no-flow boundary, resulting...

.... As examples, depletion quantifications are applied to optimize well production near lease boundary with parent well depletion on the competitor land and guide section development strategy by evaluating pad sequence scenarios. reservoir characterization complex reservoir hydraulic fracturing asset...

... compressibility boundary pvt measurement fluid dynamics investigation depletion factor reservoir characterization reservoir surveillance drillstem testing pressure transient testing drillstem/well testing gas well primary pressure derivative spherical flow flow regime bilinear flow permeability...

... surface area, Ac is derived. The second parameter estimated from boundary dominated flow is the Stimulated Reservoir Volume (SRV). These two parameters are then used to constrain the hydraulic fracture simulations (with Ac) and the numerical flow model (with SRV). A two-folds feedback loop based...

... simulation alteration fluid dynamics natural fracture co2 capture absolute permeability flow rate production control reservoir surveillance subsurface storage structural geology caprock neutron saturation s-wave velocity fracture network core sample dissolution co 2 boundary interaction...

...-making for more accurate geosteering with azimuthal GR. The geosteering question can be simplified mathematically to a prediction of separation between azimuthal GR curves when approaching or passing a bed boundary in a two-bed formation model. Separation will give an indication of a steering direction...

... injection for storage uses compressible fluids, and, in the absence of producers, will not approach steady-state flow ( Yun et al., 2017 ). Consequently, it is unlikely that storage will be in reservoirs of open boundaries. Flow of compressible fluid necessitates the use of closed or partially sealed...

... Drillstem Testing theoretical foundation mass recharge application injection equation unconventional reservoir Upstream Oil & Gas spatial integration outer boundary fractured-basement reservoir reservoir society of petroleum engineers pseudo-steady state hydraulic diffusivity equation...

... The partial differential equation (PDE) along with the appropriate initial, inner and outer boundary conditions in terms of the real gas pseudopressure, m ( p ), ( Al-Hussainy et al. 1966 ) for an infinite-acting system can be given as: (1) ∂ 2 m ( p ) ∂ x 2 = ϕ c...