Implications of outcrop geology for reservoirs in the neogene productive series

Apsheron Peninsula, Azerbaijan

A. D. Reynolds, M. D. Simmons, M. B J Bowman, J. Henton, A. C. Brayshaw, A. A. Ali-Zade, I. S. Guliyev, S. F. Suleymanova, E. Z. Ateava, D. N. Mamedova, R. O. Koshkarly

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

The Neogene sediments of eastern Azerbaijan and western Turkmenistan contain significant hydrocarbon reserves in deltaic reservoirs. Sedimentary logging of these reservoirs at outcrop in Azerbaijan has outlined four facies associations that encompass a range of paleoenvironments, from alluvial braided river sandstones and conglomerates to delta-front siltstones and mudstones. The facies associations suggest a river-dominated braid delta and are arranged into an architecture controlled by base-level changes: parasequences, parasequence sets, and sequence boundaries are key elements. The facies associations and stratigraphic architecture, together with outcrop observations of cementation and faulting, are summarized in terms of four idealized reservoir models: fluvial, delta plain, proximal delta front, and distal delta front. Each reservoir model has distinctive grain-size and shale distributions. Comparison of nearby oil fields with the studied outcrops suggests that the outcrops form good analogs from which to model reservoir architecture, barriers and baffles to fluid flow, reservoir heterogeneity, and reservoir quality variations.

Original languageEnglish
Pages (from-to)25-49
Number of pages25
JournalAAPG Bulletin
Volume82
Issue number1
Publication statusPublished - Jan 1998
Externally publishedYes

Fingerprint

Geology
Neogene
outcrop
geology
Rivers
Faulting
parasequence
Oil fields
Shale
Hydrocarbons
Sandstone
Flow of fluids
Sediments
hydrocarbon reserve
braided river
sequence boundary
paleoenvironment
cementation
siltstone
oil field

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Geology
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)

Cite this

Reynolds, A. D., Simmons, M. D., Bowman, M. B. J., Henton, J., Brayshaw, A. C., Ali-Zade, A. A., ... Koshkarly, R. O. (1998). Implications of outcrop geology for reservoirs in the neogene productive series: Apsheron Peninsula, Azerbaijan. AAPG Bulletin, 82(1), 25-49.

Implications of outcrop geology for reservoirs in the neogene productive series : Apsheron Peninsula, Azerbaijan. / Reynolds, A. D.; Simmons, M. D.; Bowman, M. B J; Henton, J.; Brayshaw, A. C.; Ali-Zade, A. A.; Guliyev, I. S.; Suleymanova, S. F.; Ateava, E. Z.; Mamedova, D. N.; Koshkarly, R. O.

In: AAPG Bulletin, Vol. 82, No. 1, 01.1998, p. 25-49.

Research output: Contribution to journalArticle

Reynolds, AD, Simmons, MD, Bowman, MBJ, Henton, J, Brayshaw, AC, Ali-Zade, AA, Guliyev, IS, Suleymanova, SF, Ateava, EZ, Mamedova, DN & Koshkarly, RO 1998, 'Implications of outcrop geology for reservoirs in the neogene productive series: Apsheron Peninsula, Azerbaijan', AAPG Bulletin, vol. 82, no. 1, pp. 25-49.
Reynolds AD, Simmons MD, Bowman MBJ, Henton J, Brayshaw AC, Ali-Zade AA et al. Implications of outcrop geology for reservoirs in the neogene productive series: Apsheron Peninsula, Azerbaijan. AAPG Bulletin. 1998 Jan;82(1):25-49.
Reynolds, A. D. ; Simmons, M. D. ; Bowman, M. B J ; Henton, J. ; Brayshaw, A. C. ; Ali-Zade, A. A. ; Guliyev, I. S. ; Suleymanova, S. F. ; Ateava, E. Z. ; Mamedova, D. N. ; Koshkarly, R. O. / Implications of outcrop geology for reservoirs in the neogene productive series : Apsheron Peninsula, Azerbaijan. In: AAPG Bulletin. 1998 ; Vol. 82, No. 1. pp. 25-49.
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