NEW TYPES OF THICKENER USED UNDER THE CONDITION OF ACIDITY IN LOW TEMPERATURE,LOW PERMEABILITY GAS RESERVOIR

doi:10.3863/j.issn.1674-5086.2009.03.028

西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (4): 131-133.DOI: 10.3863/j.issn.1674-5086.2009.03.028

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

NEW TYPES OF THICKENER USED UNDER THE CONDITION OF ACIDITY IN LOW TEMPERATURE,LOW PERMEABILITY GAS RESERVOIR

ZHOU Ji-chun¹ YE Zhong-bin² LAI Nan-jun²

1.Institute for Geological Research in Northwest Sichuan Gas Production Division，PetrolChina Southwest Oil and Gas field Company,Jiangyou Sichuan 621709,China；2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation，Southwest Petroleum University,Chengdu Sichuan 610500,China

Received:1900-01-01 Revised:1900-01-01 Online:2009-08-20 Published:2009-08-20

Abstract

Abstract: According to the situation which is low formation temperature and permeability，serious water and alkaline sensitivity of reservoir in shallow layer gas reservoir in the west of Sichuan，new types of thickener used under the condition of acidity is developed by leading sodium carboxymethyl and hydroxyl propyl which are hydrophilic group into normal guar gum.Usage amount of this thickener is fewer，and character of tackify is very good，sediments is little after breaking gel，all of above are very favorable for breaking gel and flowback.Through testing base fluid and gel made up with this thickener，it is proved that the fracturing fluid which is made up with this thickener has good rheological properties and breaking gel capability，so the damage to reservoir is little.It provided very important foundation to fracturing technical study for the shallow layer oil and gas reservoirs in the west of Sichuan and oil-gas reservoir.

Key words: low temperature, low permeability, thickener, fracturing fluid, acidity

CLC Number:

TE39

ZHOU Ji-chun YE Zhong-bin LAI Nan-jun . NEW TYPES OF THICKENER USED UNDER THE CONDITION OF ACIDITY IN LOW TEMPERATURE,LOW PERMEABILITY GAS RESERVOIR[J]. 西南石油大学学报(自然科学版), 2009, 31(4): 131-133.

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NEW TYPES OF THICKENER USED UNDER THE CONDITION OF ACIDITY IN LOW TEMPERATURE,LOW PERMEABILITY GAS RESERVOIR

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