Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (4): 132-134.doi: 10.3969/j.issn.1673-8926.2008.04.025

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Description method of lateral accretion within point bar of meandering river

WANG Lei，LIU Guotao，LONG Tao，MA Chi   

  1. No. 1 Oil Production Plant， Daqing Oilfield Company， PetroChina， Daqing 163001， China
  • Online:2008-12-15 Published:2008-12-15

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Abstract:

The description technology of inner lateral accretion within point bar of meandering river under the condition of infill drilling well pattern is introduced. On the basis of fine geologic research conducted in Daqing Oilfield, the reservoir heterogeneity is studied. Based on the analysis of formation sequence and structure elements, the concepts in terms of lateral accretion structure characteristics, as well as description method and prediction method for the interlayer located in point bar of meandering river are proposed. These methods provide effective way for the fine study on sedimentary sand body of meandering river and the further development of remaining oil within thick reservoir. The study results were applied to the locus design of horizontal well in Daqing Oilfield, and good result has been achieved.

Key words: fine stratigraphic correlation, combination of seismic and logging data, combination of static and dynamic data, correlation within individual sub-blocks and similar grading, complicated fault-block, old oilfield

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[1] KONG Xiangyu，YU Jichong，LI Shufeng. Fine stratigraphic correlation method and its application in complicated fault-block oilfield [J]. Lithologic Reservoirs, 2009, 21(1): 120-124.
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