Lithologic Reservoirs ›› 2012, Vol. 24 ›› Issue (4): 93-98.doi: 10.3969/j.issn.1673-8926.2012.04.018

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Single sand body modeling techniques and application:A case study from a block in Huabei Oilfield

WANG Donghuan 1，2， HUANG Sijing 1，2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation， Chengdu University of Technology， Chengdu 610059， China； 2. Institute of Sedimentary Geology， Chengdu University of Technology， Chengdu 610059， China
  • Online:2012-08-20 Published:2012-08-20

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Abstract:

The prediction of single sand body morphology and distribution characteristics is the main contents of fine reservoir description.The model established by using conventional stochastic modeling techniques is greatly different to the actual reservoir, so it is difficult to predict the distribution of oil-bearing sand body. Using the data from the late development and three-dimensional geological modeling techniques to describe the distribution characteristics of a single sand body in three-dimensional space and to establish accurate three-dimensional geological model is one of the key issues to solve the oil and gas field development in late period. Taking a block ofHuabei Oilfield as an example, we discussed the implementation and practical application of modeling techniques to a single sand body by conventional stochastic modeling. The result shows that a single sand bodymodel can not only clear characterize reservoirs within the multi-sand body superimposition, but also reveal single sand body distribution and thinning out in the three-dimensional space, which express the fully understanding of the geological research, providingmore convenient and reliable data for oil and gas field development, especially suitable for the late stage of development with the high frequencywell network in the scale of single sand body.

Key words: hydrocarbon enrichment law, Chang 2 oil reservoir set, Triassic, Xiasiwan Oilfield, Ordos Basin

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