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Title: Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.

Abstract

The Kimmeridgian Upper Arab zones A, B, and C, are prolific hydrocarbon bearing reservoirs in central and western Offshore Abu Dhabi (OAD). They were deposited in an arid climate which dominated the Arabian peninsula during Late Jurassic times. The Berriasian to Tithonian Hith Formation which overlies the Arab reservoirs constitute the cap rock, which just to the east of central OAD gradually pinches out and forms a N-S feather edge. The Hith and Upper Arab zones A, B, and C form 450 to over 600 feet of massive to interbedded anhydrites with varying proportions of limestones and dolomites in central and western OAD. The Arab Formation in OAD is a major regressive unit which was deposited on a broad carbonate platform and prograded eastwards into an open marine shelf environment. The objectives of this paper are to develop a sequence stratigraphic framework, emphasizing cyclicity, facies architecture and diagenesis. Core and well log data geared with various inorganic geochemical analyses from four wells are used to constrain the current uncertainties in age dating and integrate the diagenetic signatures in the patterns of relative sea level change which considerably control the formation of those parasequences. This effort will help in better understandingmore » and possible prediction of porosity in such prospective reservoirs.« less

Authors:
;
Publication Date:
OSTI Identifier:
113368
Report Number(s):
CONF-950310-
TRN: IM9544%%328
Resource Type:
Conference
Resource Relation:
Conference: 9. Middle East oil show and conference: optimizing resources in a cost-conscious and challenging environment, Manama (Bahrain), 11-14 Mar 1995; Other Information: PBD: 1995; Related Information: Is Part Of Middle East oil show: Proceedings. Volume 1; PB: 642 p.
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; UNITED ARAB EMIRATES; PETROLEUM DEPOSITS; STRATIGRAPHY; PETROLEUM GEOLOGY; RESERVOIR ROCK; DIAGENESIS; POROSITY; GEOLOGIC HISTORY

Citation Formats

Azer, S.R., and Peebles, R.G. Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.. United States: N. p., 1995. Web.
Azer, S.R., & Peebles, R.G. Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.. United States.
Azer, S.R., and Peebles, R.G. Wed . "Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.". United States.
@article{osti_113368,
title = {Sequence stratigraphy of the Hith/Upper Arab formations offshore Abu Dhabi, U.A.E.},
author = {Azer, S.R. and Peebles, R.G.},
abstractNote = {The Kimmeridgian Upper Arab zones A, B, and C, are prolific hydrocarbon bearing reservoirs in central and western Offshore Abu Dhabi (OAD). They were deposited in an arid climate which dominated the Arabian peninsula during Late Jurassic times. The Berriasian to Tithonian Hith Formation which overlies the Arab reservoirs constitute the cap rock, which just to the east of central OAD gradually pinches out and forms a N-S feather edge. The Hith and Upper Arab zones A, B, and C form 450 to over 600 feet of massive to interbedded anhydrites with varying proportions of limestones and dolomites in central and western OAD. The Arab Formation in OAD is a major regressive unit which was deposited on a broad carbonate platform and prograded eastwards into an open marine shelf environment. The objectives of this paper are to develop a sequence stratigraphic framework, emphasizing cyclicity, facies architecture and diagenesis. Core and well log data geared with various inorganic geochemical analyses from four wells are used to constrain the current uncertainties in age dating and integrate the diagenetic signatures in the patterns of relative sea level change which considerably control the formation of those parasequences. This effort will help in better understanding and possible prediction of porosity in such prospective reservoirs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Nov 01 00:00:00 EST 1995},
month = {Wed Nov 01 00:00:00 EST 1995}
}

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