STUDY ON POLYACRYLAMIDE COAGULANT

doi:10.3863/j.issn.1674-5086.2010.04.031

西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (4): 163-166.DOI: 10.3863/j.issn.1674-5086.2010.04.031

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

STUDY ON POLYACRYLAMIDE COAGULANT

MAO Yuan¹ZHANG Gui-cai²GE Ji-jiang²TANG Cun-zhi¹SUN Ming-qin²

(1.Hekou Oil Production Factory,Shengli Oilfield Company,SINOPEC;Dongying Shandong 257200,China;2.School of Petroleum Engineering,China University of Petroleum,EastChina,Dongying Shandong 257200,China)

Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20

Abstract

Abstract: To reuse the retained polymer after water flooding for polymer flooding oilfield,a three dimensional polymer coagulant with cationic groups is prepared via microemulsion polymerization.Performance evaluation tests show that when the shear rate is 170s^-1 and the cationic degree of this polyacrylamide coagulant is 5%,the viscosity of solution with equal polymer mass fraction and a volume ratio of 1:1 can be improved by 10mPa·s.In addition,when the solution is bathed in 80℃ water bath for 4 hours,the viscosity reduction is only 3%.Viscosity of the compound system stays at 32.9mPa·s even with the NaCl concentration rising to 1%.This polyacrylamide coagulant shows great potential in viscosity increase and deep profile control.

Key words: stage after polymer flooding, polyacrylamide, coagulant, cation, viscosity increase

CLC Number:

TE357

MAO Yuan ZHANG Gui-cai GE Ji-jiang TANG Cun-zhi SUN Ming-qin. STUDY ON POLYACRYLAMIDE COAGULANT[J]. 西南石油大学学报(自然科学版), 2010, 32(4): 163-166.

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STUDY ON POLYACRYLAMIDE COAGULANT

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