The Naga-Paktai (NE India) and Sulaiman (Pakistan) Ranges:
A Polyphased History and Petroleum System
Modeling![Next Hit](/images/arrow_right.gif)
Ellouz Zimmermann, Nadine 1; Vishvanath, Sandeep 1;
Jaswal, Tariq 1; Letouzey, Jean 1; Sassi, William 1
(1) Geology, IFPenergies nouvelles, Rueil malmaison cedex, France.
Indian plate was bordered laterally by two long and segmented
margins. These pre-collisional Tethyan Margins are strongly along-strike
compartimentalized, as a result from Karoo and Thetyan riftings episodes. This
polyphased extensive history resulted in the Indian margins’s segmentation
expressed by mega-horsts (Shillong and Jacobabad highs, for example, locally
inverted) and deep basins (deformed at present) which impacted the source-rock
and reservoir distribution. The pre-collision architecture and paleogeography
have been restored in this study. We, then, applied forward modeling
, using
Thrustpack software, in order to constrain the deformation and the petroleum
system evolution along five regional cross-sections through time.This exercise
have been applied on the two examples of Naga-Paktai (Assam-Arakan) and
Sulaiman (Pakistan) Ranges.
The results of these modeling
strongly outline the importance of
the following parameters: (1)pre-existing discontinuities - faults and
sedimentary facies changes from passive margin stage- on the deformation and
source-Rock distribution; and (2) the competition between deformation and
sedimentary rates on the petroleum potential of these prolific transform
margins during the oblique subduction and collision.
AAPG Search and Discovery Article #90135©2011 AAPG International Conference and Exhibition, Milan, Italy, 23-26 October 2011.