西南石油大学学报(自然科学版)

Previous Articles     Next Articles

Advances in Intensive Geological Evaluation Methods of the Mature
Exploration Areas

Liu Keqi*, Hao Xuefeng   

  1. Geoscience Research Institute,Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257015,China
  • Online:2015-02-01 Published:2015-02-01

Abstract:

The prospect areas including Jiyang Depression in east China has stepped into a relatively mature stage on the whole
after about fifty years′ exploration and development. Some problems crying out for solutions in the sphere of intensive geological
evaluation of the mature exploration areas,which includes the analysis of high resolution sequence stratigraphy,the restoration
of key geological elements at the crucial moment of petroleum accumulation,the accurate interpretation of petroleum migration
pathway system,and the quantitative characterization of petroleum accumulation process,are pointed out and systematically
reviewed on the basis of the previous researches and exploration practices in Shengli Oilfield. We find that sequence stratigraphy
researches have developed from traditional pattern to high resolution model;researches on key geological element restoration
have developed from state at the present time to the condition at the crucial moment of petroleum accumulation;interpretation
of petroleum from two-dimensional surface to three-dimensional body,and petroleum accumulation researches have developed
from qualitative analysis to quantitative evaluation. Finally,the authors put forward that the quantitative study of petroleum
accumulation process is the development trend of both theoretical analysis and exploration practice.

Key words: mature exploration areas, high resolution sequence stratigraphy, crucial moment of petroleum accumulation,
migration pathway system,
petroleum accumulation process