AN EXPERIMENTAL STUDY OF THE MECHANISM OF OIL DISPLACEMENT WITH CLAY COLLOIDS

doi:10.3863/j.issn.1000-2634.2002.04.011

西南石油大学学报(自然科学版) ›› 2002, Vol. 24 ›› Issue (4): 36-39.DOI: 10.3863/j.issn.1000-2634.2002.04.011

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AN EXPERIMENTAL STUDY OF THE MECHANISM OF OIL DISPLACEMENT WITH CLAY COLLOIDS

LI Zhou-rong¹ ZHOU Yuan-bin² WANG Xin¹ LI Ji yong¹ YUAN Ming quan¹

Shengli Oilfield Company Ltd, Dongying Shandong 257051,China

Received:2001-12-30 Revised:1900-01-01 Online:2002-08-20 Published:2002-08-20
Contact: LI Zhou-rong

Abstract

Abstract:

On the basis of preliminary studies on the mechanism of oil displacement with clay colloid SMD system, this work focuses on the regularities of percolation and dispersion of clay colloids in different permeability models. The physical models used are flat sand-packs. Observed phenomena include pressure balancing between large and small pores/throats, pressure fluctuation,and emulsification-transporting. It has been noted that the advancing front of the moving SMD system would assume a fanlike shape, with a zone of dilution and dispersion occurring along the edge, and periodical break though would take place within the low-permeability layers. With the clay colloid system, oil/gas mobility ratio and sweep efficiency can be effectively improved. By modifying the formula of SMD system, can be used to formations of different ermeability.

Key words: clay colloid, oil displacement mechanism, experiments, percolation, diffusion

CLC Number:

TE357.46

LI Zhou-rong ZHOU Yuan-bin WANG Xin LI Ji yong YUAN Ming quan. AN EXPERIMENTAL STUDY OF THE MECHANISM OF OIL DISPLACEMENT WITH CLAY COLLOIDS[J]. 西南石油大学学报(自然科学版), 2002, 24(4): 36-39.

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AN EXPERIMENTAL STUDY OF THE MECHANISM OF OIL DISPLACEMENT WITH CLAY COLLOIDS

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