西南石油大学学报(自然科学版) ›› 2003, Vol. 25 ›› Issue (4): 16-18.DOI: 10.3863/j.issn.1000-2634.2003.04.05

• 石油工程 • Previous Articles     Next Articles

APPLICATION OF PLASTIC STRAIN ON PREDICTION OF SAND PRODUCTION IN OIL WELL

LIAN Zhang-hua1 YANG Long2 DUAN Yong-gang1 LIU Xiang-jun1 TANG Bo1   

  1. (Southwest Petroleum Institute, Nanchong Sichuan 637001, China)
  • Received:2002-10-21 Revised:1900-01-01 Online:2003-08-20 Published:2003-08-20

Abstract:

FEM Model of sand production in oil well was established with plastic strain criteria, the yield stress of the rock is the Drucker-Prager criteria. According to the parameters of formation in some oilfield, the plastic stress-strain results was obtained under the difference pressure with the model in the paper, the sand production can be predicted in light of the results. The criteria production pressure without sand production was determined according to the criteria plastic strain value. It provided the theoretical data for the normal production in oil well.

Key words: sand production prediction, plastic strain criteria, oil well, Drucker-Prager criteria

CLC Number: