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A study of the subsurface conditions prevailing in the Newhall-Potrero oil field

Citation

Edmundson, James W. (1947) A study of the subsurface conditions prevailing in the Newhall-Potrero oil field. Master's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:04272010-094146381

Abstract

The Newhall-Potrero Oil Field is a long, narrow, asymmetrical anti line whose longitudinal axis trends northwest-southeast. From a critical examination of many of the electric logs of the field, it is apparent that lensing of sands thickening and thinning of both sands and shales, and rapid facies changes are prevalent throughout the field. Several of the oil sands in the Miocene either lens out or die out due to facies changes toward the southeast. Two faults of major displacement are well shown in the logs of four wells, with other faulting probably occurring. A stratigraphic correlation chart is presented to illustrate the rapid lithologic changes which prevail in the field. The Newhall-Potrero anticline is exposed on the surface in the hills north of the Potrero, but seams to die out to the southeast. The rocks encountered at depth in the wells of the Newhall-Potrero field outcrop to the south, but no ecru ate correlations between the surface exposures and the well logs were possible.

Item Type:Thesis (Master's thesis)
Subject Keywords:Geology
Degree Grantor:California Institute of Technology
Division:Geological and Planetary Sciences
Major Option:Geology
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Unknown, Unknown
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1947
Record Number:CaltechTHESIS:04272010-094146381
Persistent URL:http://resolver.caltech.edu/CaltechTHESIS:04272010-094146381
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5743
Collection:CaltechTHESIS
Deposited By: Tony Diaz
Deposited On:24 Jun 2010 22:56
Last Modified:26 Dec 2012 03:24

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