ULTRALOW TEMPERATURE BREAKER ON CROSSLINKED HPG FRACTURING FLUIDS BY BORANE

doi:10.3863/j.issn.1000-2634.1999.02.21

西南石油大学学报(自然科学版) ›› 1999, Vol. 21 ›› Issue (2): 74-76.DOI: 10.3863/j.issn.1000-2634.1999.02.21

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

ULTRALOW TEMPERATURE BREAKER ON CROSSLINKED HPG FRACTURING FLUIDS BY BORANE

Chen Fu¹ Yan Xing¹ zhong Lin¹ Tan Fang¹

Southwest Petroleum Inst

Received:1998-11-03 Revised:1900-01-01 Online:1999-04-20 Published:1999-04-20

Abstract

Abstract:

It is necessary to solve the problem of fracturing fluids being broken in shallow and low temperature reservoirs. Catalysts under low temperature accelerate the breaking capabilities of ammonium persulfate (APS), enzyme and encapsulated breaker. By testing viscosity losses of hydroxyprophyl guar(HPG) crosslinked by borane, some APS/catalysts systems and microencapsulated breaker have been screened at 50℃. Results have been shown that the HPG fracturing fluids can be completely destroyed by APS/catalysts.

Key words: fracturing fluid, crosslinking reaction, gelbreaker, research

CLC Number:

TE357.12

Chen Fu Yan Xing zhong Lin Tan Fang. ULTRALOW TEMPERATURE BREAKER ON CROSSLINKED HPG FRACTURING FLUIDS BY BORANE[J]. 西南石油大学学报(自然科学版), 1999, 21(2): 74-76.

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ULTRALOW TEMPERATURE BREAKER ON CROSSLINKED HPG FRACTURING FLUIDS BY BORANE

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