Characterization of the Karababa-C reservoir in the South Karakus oilfield, southeast Turkey

Ulu M., Karahanoglu N.

MARINE AND PETROLEUM GEOLOGY, vol.15, no.8, pp.803-820, 1998 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 8
  • Publication Date: 1998
  • Doi Number: 10.1016/s0264-8172(98)00045-2
  • Journal Name: MARINE AND PETROLEUM GEOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.803-820
  • Keywords: Karakus oilfield, Karababa-C reservoir, Turkey
  • Middle East Technical University Affiliated: Yes

Abstract

The South Karakus oil field is located in southeast Turkey, and produces, from the Late Cretaceous Mardin Group, carbonate reservoirs consisting of the Karababa, Derdere, Sabunsuyu and Areban Formations. The Karababa Formation is divided into three members, of which the productive Karababa-C member, discussed here, is composed of shallow marine bioclastic mudstone to wackestone. It is affected by early to late diagenetic processes that caused modification of the original pore system by cementation, dissolution and fracturing. Two petrophysical-petrologic facies can be discriminated by principal component analysis, and linear, multiple and stepwise multiple regression analysis of petrophysical data. These correspond to vuggy-moldic porosity and microporosity dominated reservoirs. (C) 1998 Elsevier Science Ltd. All rights reserved.