02254nmc a2200229 4500 20260520005610.0 260224s2001 xxu ing Inglés Log Normalization, a Very Important Task in the Petrophysical Evaluation for La Peña and Tundy Fields SPE 69607 Dallas, Texas Society of Petroleum Engineers 2001 12/09/06 ; 03/10/01 The well logs available in the La Peña and Tundy fields have been logged for different service companies from the 60ś (the oldest wells) up to the present time. The logging tool generations go from the oldest (Neutron in cps, Density gamma gamma, Microlog, Resistivity) to the modern technology (PI, CDL, CN, NMR, etc). This wide variety of logging tools technology made the normalization a critical step before getting into any Petrophysical Evaluation. Some logs corrections such as depth shift, wrong values corrections and eliminations, SP base line and others, were also applied before normalization. The main task of normalization was to obtain an homogeneous log data set because an important number of log traces showed signs of differing calibration and scaling. This became most apparent when the logs were displayed in cross sections and also when cross plots were compared with each other for different wells. This publication shows the importance, benefits and follows the log normalization procedure applied to 79 wells from La Peña field and the 9 wells from Tundy field. Once log normalization was performed, the wireline log data base obtained was consistent and homogeneous which let us count with reliable results in the petrophysical evaluation. CONGTP Aguirre, Omar 5764 Antelo, Roberto 5763 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Antelo, Roberto 5763 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Aguirre, Omar 5764 131169 131169 https://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69607.pdf 0 0 0 0 202091 BVIAPG BVIAPG 2026-03-03 200003247 0 200003247 2026-03-03 01:41:18 2026-03-03 ARCHIVO