西南石油大学学报(自然科学版)

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Seismic Description Technique of Turbidite Fan of Dongying Formation in#br# Jinzhou A Area,Northern Liaozhong Subdepression

ZHANG Zhijun*, ZHOU Donghong   

  1. Bohai Oilfield Research Institute,Tianjin Branch Company,China National Offshore Oilfield Co. Ltd.,Tanggu,Tianjin 300452,China
  • Online:2016-06-01 Published:2016-06-01

Abstract:

It is very difficult to identify internal reflection structure and seismic response characteristics of different turbidite
fan in Dongying formation of Jinzhou A area,northern Liaozhong subdepression of Bohai Oilfield. To solve this problem,we
describe turbidite fan by seismic data in this study. Firstly,we study the formation mechanism of the turbidite fan. Secondly,
we analyze the sedimentary characteristics,lithologic structure,well logging and seismic response characteristics of different
sub-facies,based on the typical characteristics of lithology and composite structure of the wells in this area. Thirdly,we build
different types of turbidite fan models for seismic forward modeling,and study the characteristics of the turbidite seismic
response. Finally,we get the plane distribution features of turbidite fan based on different seismic attributes. The research
results predict the favorable reservoir area of the turbidite fan in Dongying formation of Jinzhou A area,northern Liaozhong
subdepression,thus it has a great significance in guiding the exploration in this area.

Key words: Bohai Oilfield, northern Liaozhong subdepression, turbidite fan, seismic forward modeling, seismic attribute

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