... enhanced recovery complex reservoir organic matter log analysis upstream oil & gas annual logging symposium core analysis shale gas spwla-2022-0063 porosity particle size correction msec fracture sample preparation experiment logging symposium imbibition experiment well...

... . The average T 2 Log Mean values of equal or greater than 8 msec was defined as cutoff corresponding to oil-bearing intervals in the Three Forks formation. geological modeling enhanced recovery complex reservoir machine learning log analysis neural network log mean reserves evaluation williston...

.... The MRIL run in this well can be seen in Figure 7. NMR analysis of cleaned and re-saturated core in this interval show a clay bound T2 cutoff of the standard 2.8 msec and a bulk volume irreducible water cutoff of approximately 17 msec. Both cutoffs are shown in this figure with vertical lines and indicate...

... spot in length and minimum echo spacing of 0.2 msec was used for the most NMR measurements. The typical applied width of /2 pulse was ~8.3 µs and that of pulse was ~15.5 µs. Another 50-mm NMR probe with a minimum echo spacing of 0.4 msec was used for static gradient measurements. The temperature...

... gradient methane Upstream Oil & Gas water saturation log analysis cutoff porosity surface relaxivity spectra msec interpretation reservoir spwla 47 Symposium pore space gradient NMR saturation relaxation time gas phase SPWLA 47th Annual Logging Symposium, June 4-7, 2006 1...

.... The average T2 cutoff is 10 msec for the turbidite and 33 msec for the fluvial deltaic samples. The estimated free fluid index (FFI based on 10 mec is approximately 30% to 50 % higher than the FFI calculated from industry recommended T2 cutoff value of 33 msec. The Mean T2 model provides better estimation...

... magnetic resonance data in an LWD environment, describes the hardware used in the field test, and includes an analysis of the collected field test data. well logging orientation operation NMR data Upstream Oil & Gas experimental nmr lwd device msec numar Engineering porosity amplitude...

... that is based on the diffusion of pore fluids over extended diffusion times. log analysis Brine Upstream Oil & Gas mexico sample diffusion time peak shift experiment diffusion coefficient Pore Fluid internal magnetic field gradient field gradient relaxation msec well logging magnetic...

... the effect of diffusion in a gradient magnetic field as a means of separating NMR signals from oil and water. This is accomplished by acquiring spin echo data using a relatively long inter-echo time TE. In standard T2 logging, TE is kept short (- 1 msec or less) to minimize the effects of diffusion...

... & Gas spwla 39th relaxation msec log analysis irreducible water saturation porosity chlorite saturation reservoir tar permeability core plug well logging water saturation cutoff value Underestimation Symposium capillary pressure SPWLA 39th Annual Logging Symposium, May 26-29,1998...

... free fluid volume (FFI). A T2 cutoff near 33 msec is normally used for sandstones and is based on a combination of field experience and extensive laboratory data (Morriss et al., 1993; Straley et al., 1995; The NMR Sandstone Rock Catalogue, 1996). TZ cutoffs for carbonates are more variable...

... porosity msec saturation reservoir ABSTRACT A low invasion core was obtained in the BM-2 well, B-Field, offshore Northwest Java, Indonesia, for the purpose of validating wireline log porosity and water saturation models. The reservoir sands are lower Miocene in age and are generally clay rich...

... distributions. well logging diffusion time Appl diffusion log analysis inter-echo time water signal msec Upstream Oil & Gas water saturation coefficient saturation amplitude peak area pore size Symposium relaxation time dodecane free-diffusion time diffusion coefficient size sample...

.... Fourier analysis demonstrates that the bandwidth of the noise power spectrum is reduced by a factor of four. Upstream Oil & Gas porosity msec log analysis decay curve relaxation distribution single exponential Rate Distribution SNR amplitude well logging contribution inversion...

... of the sodium signal is accurately predictable from routine mud composition data, and T2 of sodium in muds is very short (~5 msec) and is nearly invariant with respect to changes in temperature, mud composition, and rheology. These results form the basis of a new software correction for sodium which...

.... log analysis cross plot log measurement Symposium numar well logging relaxation rate msec spwla 36th relaxation time diffusion log data viscosity diffusion oil-water mixture Upstream Oil & Gas oil zone equation Oil Viscosity saturation pore size SPWLA 36th Annual Logging...

... mechanism is nonconstant. Centrifuge air/brine drainage capillary pressure measurements show that the standard 30 msec T2 cutoff must be lowered to calibrate irreducible water saturation computed from NMR. Although the effects of iron are observable on T2 distributions, permeability estimation from NIMR...

... cutoff Upstream Oil & Gas NMR measurement fluid porosity well logging correlation sandstone effective porosity intergranular porosity free fluid porosity log analysis vuggy porosity porosity carbonate reservoir permeability msec interpretation equation Symposium pore size...

... Upstream Oil & Gas brown shale viscosity log analysis oil sample situ oil Symposium diatomite Oil Viscosity saturation porosity msec capillary pressure curve well logging NMR measurement oil saturation diffusion native state NMR porosity Belridge Field free fluid porosity...

.... Kleinberg porosity amplitude well logging NMR measurement echoe Kenyon laboratory measurement Upstream Oil & Gas station measurement msec Symposium centrifugeable water relaxation time log analysis deviation magnetic resonance sandstone sequence spwla 34th permeability Field Test...