A NEW TYPE OF PROFILE CONTROL AGENT—MADG

doi:10.3863/j.issn.1000-2634.2006.04.020

Abstract

Abstract: Aiming at high permeability or high water-cut reservoir,new type of profile control agentMaDG(macro-dispersion gel has been developed. MaDG is consisted with macromolecule, nucleating agent, cross-linking agent and is a kind ofmacro scopical dispersal gel system. The viscosity, granularity, inten
sity, shear resistantand temperature resistantofMaDG has bee estimated. At the same time, themicromechanism ofMaDG habeen analyzed by SEM and themicroscopic displacementmecha nism ofMaDG has been studied bymicrocosmic model flow experiment. Experimental results show that MaDG′s viscosit changes between 200-400mP·s, 1-5mm forgranularity an 0. 35MPa for translation pressure (concentration ofmain agen is 1 200mg/l) atdifferent concentration. It is adapted for rese voirwith 30-70℃. SEM Image displays thatMaDG′s structur is a sheaf-like onewhich is gotten togetherwithmain agent an nucleating agent by cross-linking agent. Its mechanism of oi
displacement ismainly of fluid steering and it has oil-displace ment function at some extent.

Key words: profile contro, l oil displacement, EOR

CLC Number:

TE357. 431

PUWan-fen JIN Fa-yang YANG Yan. A NEW TYPE OF PROFILE CONTROL AGENT—MADG[J]. 西南石油大学学报(自然科学版), 2006, 28(4): 74-77.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.2006.04.020

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2006/V28/I4/74

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A NEW TYPE OF PROFILE CONTROL AGENT—MADG

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