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Vol 176
Pages:
31-35
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RUS

Influence of sedimentation conditions on formation of reservoir strata in carbonate sediments of the aquatorial part of Timan-Pechora province

Authors:
E. S. Mirolyubova1
K. G. Viskunova2
About authors
  • 1 — All-Russian Research Institute of Geology and Mineral Resources of the World Ocean
  • 2 — All-Russian Research Institute of Geology and Mineral Resources of the World Ocean
Date submitted:
2007-09-05
Date accepted:
2007-11-29
Date published:
2008-10-06

Abstract

Conditions of sedimentation are considered for the Lower Permian oil-bearing complex in Timan-Pechora oil-and-gas province. All offshore oil fields of this stratigraphic level are connected with organic buildups, and each carbonate reservoir is unique by conditions of its formation, composition and, consequently, by its filtration and capacity parameters. Among them, the reservoir rocks of Prirazlomnoye oil field are represented by algal limestones, reservoirs of Southern-Dolginskoye and Northern-Dolginskoye oil-and-gas fields – by bruozoan-echinoderm grainestone-packestones and bruozoan bafflestones. Petrophysical properties of these carbonate rocks were predetermined at the earlier stages of their formation – sedimention and diagenesis; it means that facial analysis of the primary sedimention should be included as an obligatory element in the modeling of carbonate reservoirs of oil-and-gas.

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References

  1. Атлас структурных компонентов карбонатных пород / Н.К.Фортунатова, О.А.Карцева, А.В.Баранова, Г.В.Агафонова, И.П.Офман; Всерос. науч.-исслед. геолого-развед. нефт. ин-т. М., 2005. 440 с.
  2. Государственная геологическая карта Российской Федерации. Масштаб 1:1000000 (новая серия), лист R-38-40 – Печорское море: Объяснительная записка / Всерос. науч.-исслед. геолог. ин-т. СПб, 2001. 165 с.
  3. Кузнецов В.Г. Эволюция карбонатонакопления в истории Земли. М.: ГЕОС, 2003. 262 с.
  4. Систематика и классификации осадочных пород и их аналогов / В.Н.Шванов, В.Т.Фролов, Э.И.Сергеева и др. СПб: Недра, 1998. 352 с.
  5. Уилсон Л.Дж. Карбонатные фации в геологической истории: Пер. с англ. М.: Недра, 1980. 463 с.

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