Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
The Leading Edge Email Content Delivery
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
The Leading Edge; November 2003; v. 22; no. 11; p. 1148-1156; DOI: 10.1190/1.1634921
© 2003 Society of Exploration Geophysicists
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Mora-Glukstad, M.
Right arrow Articles by Martínez, P.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Case study of an integrated geophysical and structural analysis of the prolific Vivian sandstones in the Northern Marañón Basin, Perú

Miguel Mora-Glukstad, Elizabeth Díaz and Edi Maili

Occidental Oil and Gas, Houston, Texas, U.S.

Paul Martínez

Occidental, Perú

Corresponding author: Miguel_mora@oxy.com

The first 20% of the full text of this article appears below.

The Northern Marañón Basin is part of the prolific Oriente-Marañón hydrocarbon basin in the Andean eastern foreland. More than four billion barrels of oil have been discovered to date and reserve estimates indicate 4–7 billion barrels of oil in additional undiscovered potential (Figure 1).


Figure Removed (Available Only in the Full Text)
View larger version (129K):
[in this window]
[in a new window]
  		Figure 1. General location of the Marañón Basin in northwestern Peru. Block 64 is operated by Occidental Petroleum and Block 1AB by Pluspetrol.

 
Marañón Basin, in the northwestern corner of Perú is, in general terms, a relatively simple west-dipping sedimentary wedge with sediments ranging in age from Jurassic or older (in the deeper western foredeep) to Tertiary onlapping (on the Brazilian craton to the east). Several phases of hydrocarbon migration, from a western foredeep, have taken place between late Cretaceous time to around 5 million years ago, when a major Andean phase of deformation cut off the kitchen for the updip structures (Figure 2a).


Figure Removed (Available Only in the Full Text)
View larger version (79K):
[in this window]
[in a new window]
  		Figure 2. (a) East-west trending seismic line (Oxy-19). Black arrow: Top Paleozoic. Green arrow: Base Cretaceous. For location see Figure 6. The western margin of the basin has been uplifted in a late Andean (12 to 5 million years ago) phase of deformation. (b) Same line flattened at Pozo level (33 million years ago time marker), prior to the major compressional Andean event. Note location of Huitoyacu well. The lack of paleostructuration explains the lack of charge.

 

Figure Removed (Available Only in the Full Text)
View larger version (58K):
[in this window]
[in a new window]
  		Figure 6. Simplified time structure map at Vivian level showing the main faults mapped in the region and location of key seismic lines and well used for the present study.

 
The main producing horizons, that to date have produced more than 600 million barrels from the former Oxy block 1 AB (currently operated by Pluspetrol), are the Upper Cretaceous, Campanian Vivian Formation, and interbedded sandstones of the Chonta Formation of Coniacian-Santonian age (equivalent to the M1 . . . [Full Text of this Article]






JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by Society of Exploration Geophysicists