Sequence-stratigraphic analysis of Eocene clastic foreland basin deposits in central Lake Maracaibo using high-resolution well correlation and 3-D seismic data

AAPG Bulletin ◽  
2006 ◽  
Vol 90 (4) ◽  
pp. 581-623 ◽  
Author(s):  
Alejandro Escalona ◽  
Paul Mann
Keyword(s):  
High Resolution ◽  
Seismic Data ◽  
Foreland Basin ◽  
Sequence Stratigraphic ◽  
Stratigraphic Analysis ◽  
Lake Maracaibo ◽  
Well Correlation

scholarly journals Prediction of reservoir sand in Miocene deltaic deposits in Denmark based on high-resolution seismic data

2007 ◽  
Vol 13 ◽  
pp. 17-20 ◽  
Author(s):  
Erik S. Rasmussen ◽  
Thomas Vangkilde-Pedersen ◽  
Peter Scharling
Keyword(s):  
High Resolution ◽  
Seismic Data ◽  
Seismic Reflection ◽  
Oil And Gas ◽  
Lower Miocene ◽  
Sequence Stratigraphic ◽  
Deep Aquifers ◽  
Gas Bearing

Intense investigations of deep aquifers in Jylland, western Denmark, during the last seven years have resulted in de tailed mapping of Miocene sand-rich deposits laid down in fluvial channels, delta lobes, shoreface and spit complexes (Fig. 1; Rasmussen 2004). Detailed sedimentological and paly nol ogical studies of outcrops and cores, and interpretation of high-resolution seismic data, have resulted in a well-founded sequence-stratigraphic and lithostratigraphic scheme (Fig. 1) suitable for prediction of the distribution of sand. The Miocene succession onshore Denmark is divided into three sand-rich deltaic units: the Ribe and Bastrup sands and the Odderup Formation (Fig. 2). Prodeltaic clayey deposits of the Vejle Fjord and Arnum Formations interfinger with the sand-rich deposits. Most of the middle and upper Mio- cene in Denmark is composed of clayey sediments referred to the Hodde and Gram Formations (Fig. 2). This paper presents examples of seismic reflection patterns that have proved to correlate with sand-rich deposits from lower Miocene deltaic deposits and that could be applied in future exploration for aquifers and as analogues for oil- and gas-bearing sands in wave-dominated deltas.

A SEQUENCE STRATIGRAPHIC DEPOSITIONAL MODEL OF NEOPROTEROZOIC STRATA, YOWALGA AREA, OFFICER BASIN,WESTERN AUSTRALIA

2000 ◽  
Vol 40 (1) ◽  
pp. 15 ◽  
Author(s):  
S.N. Apak ◽  
H.T. Moors
Keyword(s):  
Seismic Data ◽  
Sequence Stratigraphic ◽  
Petroleum Systems ◽  
Stratigraphic Analysis ◽  
Regional Correlation ◽  
Depositional Settings ◽  
Potential Reservoir ◽  
Storm Wave ◽  
Flooding Events ◽  
Stacking Patterns

Additional data and further studies have now improved geological, geophysical, and geochemical understanding of the Neoproterozoic strata of the Officer Basin. New sequence stratigraphic analysis of continuously cored drillholes (particularly Empress–1/1A), extended throughout the area with wireline log and seismic correlations, provide enhanced recognition of depositional fades and thus basin architecture. Four major flooding events and fifteen sedimentary successions, interpreted as parasequence sets by regional correlation, are recognised across the Yowalga area. These parasequence sets are traceable using seismic data, with flooding events identified on cores and logs producing regional or local reflectors with good amplitude and continuity.Sedimen tary cycles are dominantly mixed carbonates- siliciclastics with primarily progradational stacking patterns. These imply transgressive and regressive cycles in a basin with low bathymetric relief. Depositional settings range from supratidal to just below storm wave base.This interpretation improves the prediction of potential petroleum systems. An architectural model for each formation allows prediction of depositional trends including potential reservoir, source rock and seal in the Yowalga area.

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