High-resolution Facies Architecture of Heterolithic Tidal DepositsAn Integrated Outcrop and Electrofacies Analysis of a Complex Reservoir

2002 ◽  
Author(s):  
Renu Gupta ◽  
Howard D. Johnson
Keyword(s):  
High Resolution ◽  
Facies Architecture ◽  
Tidal Deposits

High-resolution sequence stratigraphic division and distribution of tidal deposits in the Zhuhai Formation, Huizhou Sag, Pearl River Mouth Basin, South China Sea

2011 ◽  
Vol 149 (4) ◽  
pp. 722-728 ◽  
Author(s):  
WENBO ZHENG ◽  
HONGWEN DENG
Keyword(s):  
High Resolution ◽  
River Mouth ◽  
Petroleum Exploration ◽  
Pearl River Mouth Basin ◽  
Root Mean Square Amplitude ◽  
Sequence Stratigraphic ◽  
Base Level ◽  
Mud Flat ◽  
Tidal Deposits ◽  
Tidal Sedimentation

AbstractThe Zhuhai Formation of the Huizhou Oilfield has been interpreted as being deposited in a tide-dominated estuarine setting. This paper uses stratigraphic principles, cores and logging data to analyse the facies changes of tidal sedimentation in response to the base level cycle. We conclude that the mud flat progradational allocycle is the result of a long-term base level fall, while the fining-upwards autocycle is in response to a short-term base level fall. Region-wide mud layers of supratidal zones and scour surfaces of subtidal zones are stratigraphic surfaces of tidal sedimentation. By integrating high-resolution stratigraphic correlations with seismic attributes extracted from the stratal slicing of 3-D data volumes, we use an attribute map of RMS (root mean square) amplitude to image the distribution and evolution of tidal deposits in the study area. Intertidal zones and the upper parts of the tidal cycle are favourable areas for prospecting and oil reserves and thus provide a basis for petroleum exploration and development.

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