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Extensive drilling of the upper Miocene Stevens sandstones on the Bakersfield arch for almost 30 years has led to the classification of this area as one of mature exploration. Yet recent drilling, based on detailed structural-stratigraphic studies, has led to the discovery of a new field, English Colony, and new pools at Northwest Strand, Canal, and Ten Section.
In these studies, emphasis was placed on the diligent use of conventional geologic exploratory methods, including the detailed study of older fields, isochore and isolith mapping, stratigraphic sections, and detailed seismic mapping. In addition, specific geologic techniques have proved useful in particular areas. These techniques and their application to these recent discoveries on the arch are discussed.
A project of the type reviewed here is especially suited to a mature area of exploration where extensive subsurface control, production data, and adequate seismic coverage are present.
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