西南石油大学学报(自然科学版) ›› 1985, Vol. 7 ›› Issue (3): 14-27.DOI: 10.3863/j.issn.1000-2634.1985.03.002

• 石油与天然气工程 • Previous Articles     Next Articles

ANALYTICAT STUDY OF UNSTEADY AND NON-DARCY HIGH-SPEED ELOVV THROUGH MULTIPLE MEDIUM IN COMPOSITE RESERVOIRS

Feng Wen-guang Ge Jia-li
   

  1. (Chengdu College of Geoiogy) (Southwestern Petroulroleum;Institute)
  • Received:1900-01-01 Revised:1900-01-01 Online:1985-08-20 Published:1985-08-20
  • Contact: Feng Wen-guang

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Abstract:

This paper has revised Forchheimer Equation by dividing the curve into two segments linearly,established mathematical models of unsteady and Non-Darcy high-speed flow through porous medium, double medium and triple medium in composite reservoirs,and gained their solutions and their corresponding long time asymptotic solutions. The unsteady Darcy flow and the Darcy flow in composite reservoirs through porous medium, double medium and triple medium are special cases of their own.

It is realized from long time asymptotic solutions that there are two steps at the pressure curve of triple medium，one step at the
pressure curVe of double medium，and no step at the curve of
pressure porous medium.The pressure curve will become T一shaped when the production of oil well is very- high.