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Keywords: gas reservoir
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Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0091
... 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...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5083
... ABSTRACT In mature multilayered gas reservoirs, a common problem is determining whether unperforated potential gas zones behind casing that were identified on openhole logs are still at original reservoir pressure or have been depleted over time via offset well production. If the unperforated...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-CCC
...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...
Proceedings Papers

Paper presented at the SPWLA 52nd Annual Logging Symposium, May 14–18, 2011
Paper Number: SPWLA-2011-N
... 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...
Proceedings Papers

Paper presented at the SPWLA 51st Annual Logging Symposium, June 19–23, 2010
Paper Number: SPWLA-2010-22718
... 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...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-18523
... 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...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-46025
...) 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...
Proceedings Papers

Paper presented at the SPWLA 46th Annual Logging Symposium, June 26–29, 2005
Paper Number: SPWLA-2005-KK
.... Recently, using petro-free mud, we noted an anomalous N/D separation in a gas reservoir namely, a higher neutron porosity with the wireline tool, relative to LWD, at a shallow depth and the reverse behavior at a greater depth. In Angola, use of a low-invasion synthetic mud had resulted in inaccurate...
Proceedings Papers

Paper presented at the SPWLA 45th Annual Logging Symposium, June 6–9, 2004
Paper Number: SPWLA-2004-II
... filtrate Upstream Oil & Gas gas reservoir novaplus gas dead oil water Crossplot reservoir dead oil water upper panel acquisition Symposium miscible mixture gas dead oil water well logging nmr acquisition identification hydrocarbon decay time Advanced NMR Acquisition Has Improved...
Proceedings Papers

Paper presented at the SPWLA 39th Annual Logging Symposium, May 26–28, 1998
Paper Number: SPWLA-1998-VV
... 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...
Proceedings Papers

Paper presented at the SPWLA 36th Annual Logging Symposium, June 26–29, 1995
Paper Number: SPWLA-1995-X
...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...
Proceedings Papers

Paper presented at the SPWLA 36th Annual Logging Symposium, June 26–29, 1995
Paper Number: SPWLA-1995-N
... 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...
Proceedings Papers

Paper presented at the SPWLA 35th Annual Logging Symposium, June 19–22, 1994
Paper Number: SPWLA-1994-G
..., 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...
Proceedings Papers

Paper presented at the SPWLA 18th Annual Logging Symposium, June 5–8, 1977
Paper Number: SPWLA-1977-T
... 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...

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