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Keywords: formation porosity
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Proceedings Papers
The Correlation of Neutron and Density Logs and its Application in Tight Gas Reservoirs Identification
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Unconventional Gas Conference and Exhibition, January 28–30, 2013
Paper Number: SPE-163951-MS
... formation porosity due to the effection of excavation effect, and the density derived porosity is higher than the true formation porosity. Thus, porosity estimated from density logs is increased and the neutron derived porosity is decreased, the negative correlation exists between these two derived porosity...
Proceedings Papers
Comparison and Limitation Analysis of Approaches for Porosity Evaluation from NMR and Three Porosity Logs in Low Permeability Gas Sands with Bad Borehole
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Middle East Unconventional Gas Conference and Exhibition, January 31–February 2, 2011
Paper Number: SPE-141040-MS
.... The piecewise scale methods is also not recommended because it will spend too much time for log analysts. well logging low permeability gas sand reservoir porosity affection neutron-density crossplot technology core porosity nmr porosity log analysis porosity formation porosity borehole...
