A Low Temperature Breaker System for HPAM/Cr 3+ Gel Fracturing Fluids

doi:10.3863/j.issn.1000-2634.2005.02.018

西南石油大学学报(自然科学版) ›› 2005, Vol. 27 ›› Issue (2): 64-65.DOI: 10.3863/j.issn.1000-2634.2005.02.018

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

A Low Temperature Breaker System for HPAM/Cr³⁺Gel Fracturing Fluids

XU Xiao-feng PU Wan-fen YANG Yan et al

Southwest Petroleum Institute, Chengdu Sichuan 610500, China

Received:2004-02-27 Revised:1900-01-01 Online:2005-04-20 Published:2005-04-20

Abstract

Abstract: It is seldom reported about HPAM/Cr ³⁺gel fracturing fluid system. The system has strong ability of increasing viscosity, good prop-carrying capacity, low frictional resistance, less residue after gel-breaking and so on. However, at low temperature, the controllable degradation of polyacrylamide is in difficulty, and its application in oil field has been restricted. In this paper, we have investigated the gel-breaking capacity of the breaker at low temperature, factors that influence gel-breaking capacity of the fracturing fluid and put forward a gel-breaking system used in low temperature formation. The system can break gel at low temperature of 30℃.

Key words: HPAM/Cr ³⁺gel fracturing fluids, gel-breaking, low temperature, system

CLC Number:

TE357.12

XU Xiao-feng PU Wan-fen YANG Yan et al. A Low Temperature Breaker System for HPAM/Cr³⁺Gel Fracturing Fluids[J]. 西南石油大学学报(自然科学版), 2005, 27(2): 64-65.

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A Low Temperature Breaker System for HPAM/Cr³⁺Gel Fracturing Fluids

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