西南石油大学学报(自然科学版)

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Adjustment Technology of Well Pattern in Gudong No.2 Block Ng5 Based
on Segmentation Variable Streamline Method

Gao Jutong*   

  1. Gudong Oil Production Plant,Shengli Oilfield,Sinopec,Dongying,Shandong 257237,China
  • Online:2015-06-01 Published:2015-06-01

Abstract:

In view of No.2 Block Ng5 adopted water flooding after 2011 in the later development period,which brought many
problems,including the well casing damage resulted in imperfect well pattern and large reserves out of control,prominent
interlayer contradictions,relatively fixed well pattern,ineffective exploitation of plane interlayer remaining oil,low oil recovery
and so on. Therefore,in the study area we to implement segmentation variable flow pattern adjustment. In the study,we can
adjust well pattern and transform streamline by subdivision of strata,modifying layer of old wells and drilling new wells.
According to study the remaining oil by modeling and numerical simulation technology,we find the remaining oil in the shunt
line and between the oil wells is still adequate and has further potential to improve oil recovery.

Key words: interlayer contradictions, residual oil, variable streamline, well pattern adjustment, modeling and numerical
simulation