Reservoir Characterization Project: Basin-Centered Gas Accumulation
Rio Neuquen - Lajas / Punta Rosada Accumulation
• Overpressured
• Continuous gas saturation
zone.
• Total thickness: 900 to 1500m
• Lack of down-dip water contact
NW
Pore pressure gradient as mud desity migs]
14.00
1380 Lajas-Punta Rosada
13.20
1280
Pore pressure gradient as
12.40
mud density (Ibm/gal)
12.00
11.60
11.20
1000
10.40
10.00
Top
Pta. Rosada
RCP
In pursuit of new ideas
SE
Overpressure and continuous gas saturation zone,
reachs Top. of Punta Rosada Formation
Top Overpressure zone
Penetrating fissures
migration
Overpressure
"Pockets"
Faults migration
Punta Rosada_intra
Unconformities
Zona de produção de Gás
Alta pressão
Transgressive
Surfaces
Top Los Molles
Top Precuyo
Los Molles
Generation
Cracking
Calculated pore pressure gradient.
Modified from Julian Guerra et al. 2018.
10
Lajas/Pta. RosadaView entire presentation