02374nmc a2200217 4500 20260520005602.0 260224s2001 xxu ing Inglés Bitumen and Well Behavior in Loma La Lata Field: Summary and Analysis of New Information SPE 69428 Dallas, Texas Society of Petroleum Engineers 2001 12/09/06 ; 21/03/02 The results obtained during 1999ś drilling plan in Loma La Lata field, related to the bitumen and the reservoir behavior through new information coming from production logs, NMR, and multipolar acoustic logs, formation tester, open hole completions, core analysis, pre-existent geochemical studies and detailed diagenetic descriptions; allow considering the postulate of bitumen generation related to an early migration from Los Molles Formation like more consistent. This bitumen has a wide and regional distribution and its influence should be contemplated in all the units older than Vaca Muerta Formation. It is considered convenient logs that register the effective porosity to the correction of the conventional ones by some distribution law. In this sense the density of bitumen seems to be sufficiently high as for not affecting the NMR tools. The porosity of Sierras Blancas Formation is secondary and generated in a second phase of dissolution, being the permeability controlled by rock type and abundance of pore bodies; acquiring importance again the magnetic resonance whose permeabilities and porosities show adjusted values with the petrophysics measurements. Some layers of the reservoir could behave as tight gas, and the gas would be flowing to wells for channels of high permeabilities in the main layer of the field. These variations in the units would be related with an intra-Tordillo unconformity and they demand the fracture of the same ones to accelerate their production. CONGTP Maretto, H.M. 5868 Vera, H. de 5869 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Vera, H. de 5869 Latin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) 5738 Maretto, H.M. 5868 130875 130875 0 0 0 0 201797 BAAB BAAB 2026-03-03 200002919 0 200002919 2026-03-03 01:41:01 2026-03-03 ARCHIVO