Print this pageNew Oil Trapping Perspectives, Torta-Maulpa Area, Eastern Venezuela Basin.
PERAZA, HERMES, JOSE SAMBRANO and VIRGILIO VILLARROEL
The objective of this work is to define the geometry and characterize the Miocene-Oligocene section in the Torta-Maulpa area of the Eastern Venezuela Basin. The study area covers 350 km{2}, where 6 oil fields are located. Only 6 out of 27 wells drilled, are currently active. Remaining reserves are estimated around 230 MMBls of oil, and cumulative production around 23 MMBls.
The integration of 2D and 3D seismic interpretation with stratigraphic analyses of genetic sequences, petrophysical, core and production data allowed the identification of 32 parasequences. The structural framework was also defined.
The analysis of seismic attributes helped define the presence of channeled sand bodies within the 3D survey area. The integration of these channel-like geometries with the structural framework led to the conclusion that stratigraphy, and not structure as previously believed, is the main factor controlling oil entrapment.
Additional reserves as a result of this study are estimated around 28 MMBls of oil. Four new certifying locations are recommended for drilling.