A NEW FOAM DIVERSION MODEL CONSIDERING TRAPPING EFFECT IN MATRIX ACIDIZING

doi:10.3863/j.issn.1000-2634.2003.03.020

西南石油大学学报(自然科学版) ›› 2003, Vol. 25 ›› Issue (3): 69-72.DOI: 10.3863/j.issn.1000-2634.2003.03.020

• 油气化学工程与化工 • Previous Articles Next Articles

A NEW FOAM DIVERSION MODEL CONSIDERING TRAPPING EFFECT IN MATRIX ACIDIZING

CHEN Ji-mei WANG Yi HUANG Ying-hui

Southwest Petroleum Institute, Nanchong Sichuan 637001, China

Received:2002-06-06 Revised:1900-01-01 Online:2003-06-20 Published:2003-06-20
Contact: CHEN Ji-mei

Abstract

Abstract: Form is an excellent diverting agent in matrix acidizing for its less pollution and easy to cleanup. By analysis of foam diverting mechanism and foam flow in porous media, trapping factor considering different gas saturation before and after diverting has been established, on the basis of which, a new foam diver-
sion model has been developed. Algorithm is obtained in example calculation. Results have show that injection amount of foam exits an optimum value and trappingfactor is the most important parameter in foam diverting.

Key words: fractional flow, foam, capillary pressure, critical saturation, trapping factor

CLC Number:

TE357.2

CHEN Ji-mei WANG Yi HUANG Ying-hui. A NEW FOAM DIVERSION MODEL CONSIDERING TRAPPING EFFECT IN MATRIX ACIDIZING[J]. 西南石油大学学报(自然科学版), 2003, 25(3): 69-72.

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A NEW FOAM DIVERSION MODEL CONSIDERING TRAPPING EFFECT IN MATRIX ACIDIZING

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