... upstream oil & gas sandstone reservoir salinity mdpnt saturation climate change gas reservoir porosity hydrogen index injection subsurface storage correlation simulated co 2 natural gas spwla-2022-0091 rd annual logging symposium SPWLA 63rd Annual Logging Symposium, June 10-15, 2022...

... log analysis tphi porosity assumption upstream oil & gas water saturation pulsed neutron log well logging gas reservoir july 29 spwla 61 openhole log matrix saturation gas pressure reservoir characterization symposium equation alberto abouganem stephen reservoir pressure...

...SPWLA 56th Annual Logging Symposium, July 18-22, 2015 1 On the Equilibrium State of Shale Gas Reservoirs Sigal, R. F., Consultant, Devegowda, D. and Civan, F., University of Oklahoma Copyright 2015, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting...

... Institute approach (Mavor and Nelson, 1997) and supported by an extensive core coal database (>3000 desorption measurements) allowing a rigorous review of the gas content-bulk density relationship and determination of coal gas saturation. well logging log analysis coal gas reservoir porosity...

... ABSTRACT: Gas reservoirs of north-west China are characterized by deep burial, complex lithology, high-angle beds, low porosity, low permeability, and high water salinity. As such, reservoir evaluation with conventional logging tools like resistivity and neutron-density have a high degree...

... well logging electrical property porosity Wamsutter field Almond log analysis Upstream Oil & Gas fluid saturation tight gas reservoir lower almond tight gas upper almond sandstone grain density Symposium Reservoir Characterization complex reservoir gas reservoir Almond...

...) technology can be of great help in this type of reservoirs. These tools detect directly the types and volumes of fluids without relying on models that require precise knowledge of e.g. formation water resistivity Rw, The acquisition of NMR data in tight gas reservoirs is not without challenges. The small...

... of gas absorbed by the base mud fluid, invasion by substances other than the mud filtrates, the temporal evolution of the reservoir fluid composition relative to when logged, especially in a gas reservoir, and possibly on tool design. INTRODUCTION Often confusing and unexpected neutron/density (N/D) tool...

... the influence of isothermal pressure depletion to 2,000 psi. 2 Miscible Mixing. Fig. 2 shows T2 decay spectra from a 1.2-ms inter-echo spacing (TE) log that spans a gas reservoir at irreducible water condi- tions. The red line superimposed over the distribu- tions indicates the decay time for pure methane...

...-Delta gas reservoir with high Swir is presented. The NMR data was acquired using the CMR Combinable Magnetic Resonance Tool. The main scope of this study was to use the CMR-APS (neutron)-LDT (Density) and Electrical resistivity logs in order to estimate accurately hydrocarbon reserves, effective...

... ABSTRACT Nuclear Magnetic Resonance (NMR) logging in low permeability gas reservoirs has been used to assist standard formation evaluation techniques in identifying productive reservoirs from those that lead to tight tests or produce formation water. By incorporating NMR logging...

...SPWLA 36th Annual Logging Symposium, June 26-29,1995 IMPROVED POROSITY ESTIMATION IN INVADED GAS RESERVOIRS USING A PULSED NEUTRON POROSITY DEVICE C. R. Case, C. Flaum, P. D. Wraight Schlumberger-Doll Research Ridgefield, Connecticut X T. DasGupta Schlumberger Wireline & Testing Sugar Land, Texas...

... ABSTRACT The phenomenon causing reduced NMR porosities in gas reservoirs, the so called "gas effect", has lately become a subject of great interest in the petrophysical community. Contrary to the industry wide belief, NMR logging tools can detect gas provided that the pulse sequences...

..., especially in gas reservoirs. This problem is due in part to the difference in the depths of investigation of these two logging devices. As a result, typical standard gas corrections can have significant errors due to invasion, lithology, and gas effects to such an extent that pay can be missed...

... deep carbonate test thrust sheet Upstream Oil & Gas gas reservoir mud total gas curve Symposium reservoir caliper production testing SPWLA EIGHTEENTH ANNUAL LOGGING SYMPOSIUM, JUNE 5-8, 1977 CONFLICTING WELLSITE DATA ON DEEP CARBONATE TEST by R. F. Mercerl and R. W. Hausegger 2 ABSTRACT...

... ABSTRACT In most gas reservoirs there is a close correlation between formation water saturations derived from logs and saturation data from laboratory core studies. In Carbonate Gas reservoirs, Rt derived directly from Laterolog type devices are valid, and subsequently water saturations...