Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (2): 127-131.doi: 10.3969/j.issn.1673-8926.2008.02.023

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Identification and inter -well pr ediction of interbeds in thick oil layer

YAN Yaozu, DUAN Tianxiang   

  1. Research Institute of Petroleum Exploration & Development-Northwest (NWGI) , PetroChina, Lanzhou 730020, China
  • Online:2008-06-15 Published:2008-06-15

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Abstract:

At the early stage of the oilfield development, it only used density and frequency to describe the interbeds. The quantitative description method, especially the inter-well prediction method for interbeds becomes significant in the later period. Taking the thick sandstone reservoir in Ordos Basin as an example, the recognition method for interbeds is analyzed. The stochastic modeling techniques combining with lithology and logging are applied to establish a 3D interbed model. This model takes a significant part in guiding the potential excavation and increasing oil recovery.

Key words: sequence stratigraphy, synsedimentary faulting slope break, LST sand body, lithologic reservoirs, Damintun Depression

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