Xinjiang Petroleum Geology ›› 2009, Vol. 30 ›› Issue (3): 373-375.

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Streamline Numerical Well-Testing Interpretation Model for Irregularly Contaminated Wells with Application

WU Ming-lu, YAO Jun   

  1. School of Petroleum Engineering, China University of Petroleum, Dongying, Shandong 257061, China
  • Received:2008-09-09 Revised:2008-12-05 Online:2009-06-01 Published:2020-10-29

Abstract: The pressure response characteristic curves for irregularly contaminated wells are obtained by solving the models of the two stages using streamline method and finite difference method, respectively. It is indicated from analysis of pressure response characteristie curves that in radial flow period, the pressure derivative curves will coincide in condition of different skin factors, when the contaminated degrees of testing well in different directions are the same, otherwise, they will not coincide, and radial flow formns under the two circumstances do not change. Also, the streamline numerical well-testing interpretation software is worked out. The case study indicates the feasibility of the software and the models in field application.

Key words: contamination, skin factor, well test, streamline, pressure build-up curve

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