西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (3): 60-65.DOI: 10.3863/j.issn.1000-2634.2007.03.017

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

THE PRODUCTIVITY EVALUATION MODEL OF THE STEPPED HORIZONTAL WELL IN THIN INTERBEDED RESERVOIRS

HUANG Shi-jun 1 CHENG Lin-song 1 ZHAO Feng-lan 2 et al.

  

  1. (CMOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Changping Beijing 102249, China)
  • Received:2005-12-29 Revised:1900-01-01 Online:2007-06-20 Published:2007-06-20
  • Contact: HUANG Shi-jun

Abstract:

On the basis of the potential superposition, a coupling flow model of the pay zones in stepped hprizontal wells in thin interbeded reservoirs is estabished, and in the model, the interference between reservoir flowing through porous media of pay zones and pipe flowing coupling and branching in well bore is considered, the productivity evaluation method for stepped horizontal wells considering coupling flowing of pay zones is put forward. The dual stepped horizontal well productivity calculated with the established coupling model is 64.26 m3/d, comparing with 60.19 m3/d of the practical productivity of thewell, the calculation error of the coupling model is 6.76%, and the error calculated with horizontal well solution equation is as high as 26.71%.

Key words: stepped horizontal well, productivity model, coupling, pressure drop analysis

CLC Number: