Figure 8 (a) DOI time map from asymptotic solution; (b) DOI time map from ECLIPSE; (c) Cross plot of DOI time between asymptotic and ECLIPSE results and (d) DOI Boltzmann variable vs. time for the case with infinite acting radial flow More

Figure 11 (a) DOI time map from asymptotic solution; (b) DOI time map from ECLIPSE; (c) Cross plot of DOI time between asymptotic and ECLIPSE results and (d) DOI Boltzmann variable vs. time for case with infinite conductivity hydraulic fracture More

Fig. 1 DOI varies with different ( a ) Rat and ( b ) Rt. More

Fig. 8 Comparison between DOA (annular thickness) and DOI for planar and radial fracture geometries, indicating fracture extension beyond cement sheath to reservoir matrix for all the wells except Quebec. More

Fig. A-1 Analytical solutions of DOI for ( a ) planar fracture ( Nordgren 1972 ) and ( b ) radial fracture ( Sneddon and Elliot 1946 ). ( c ) shows the sensitivity analysis of different fracture heights ( h f ) on DOI estimation for Charlie. Red vertical dashed lines represent the DOA. More

Fig. 11 Resistivity model and scheme of DOI estimation. More

Fig. 12 Evaluated DOI values corresponding to the low-frequency cross-component signal (ImV400k) of the deep-azimuthal resistivity tool for the third scenario. In the case of reservoir roof composed of the shale and water-bearing interlayers, the DOI is approximately 1.25 m. In the case of reservo... More

Fig. 1 Schematic of the DOI from the EWR-P4 sensor-measure point, TVD at EWR-measure point, and TVD at the bit above the top of the carbonate. More

Figure 1 Schematic of a fracture extending beyond the depth of investigation (DOI) of a logging tool More

Figure 3 Comparison of average fracture pressure, average pressure in the matrix DOI, and average fracture water saturation, and average water saturation in the matrix DOI calculated from analytical solution and numerical simulation for (a-b) Case 1 and (c-d) Case 2. More

Figure 4 Inversion canvas from 40-ft spacing receiver at 4 and 8 kHz (DOI 80 ft), plotted against density and resistivity images, gamma ray, density and neutron porosity logs, and the CPI log. More

Figure 5 Inversion canvas from 40-ft spacing receiver at 4 and 8 kHz (DOI 80 ft), superimposed over the seismic section. More

Figure 15 Resistivity model and scheme of DOI estimation More

Figure 16 Evaluated DOI values of deep-azimuthal resistivity tool for the third scenario. In the case of reservoir roof composed of the shale and water-bearing interlayers, the DOI is approximately 1.25 m. In the case of reservoir roof composed of the shale and oil-bearing interlayers, the DOI is ... More

Figure 8 DOI Range of the Directional EM Propagation Measurements T-R Space: 96", 100kHz More

Fig. 4 Depth profile and DOI determination (Near Detector, Block 1, calculation # 2) More

Fig. 5 Inelastic and Capture DOI for the Block 1 set of Table I More

Fig. 6 Inelastic and capture DOI for Blocks 2-5 of Table I . The calculations, shown by the solid lines, are overlaid on the base case of Block 1 shown by the light dashed lines. In some cases, the effects of finite statistical precision is evident on the trends of the curves More

Fig. 7 Average of the DOI curves More