Petroleum Reservoir Evaluation and Development >
2021 , Vol. 11 >Issue 3: 437 - 442
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.03.020
Development and application of predispersed instant guar gum
Received date: 2020-11-06
Online published: 2021-06-24
In order to save the fracturing time and cost, and realize consecutive fracturing, a kind of predispersed instant guar gum（PGW）, which can be used for successive fracturing, has been developed by the optimization of dispersion system, surfactant and other materials. The comprehensive properties have been evaluated by the experiment of concentration ratio, dissolved time, crosslinking performance, gel breaking performance, heat and shear resistance, etc. The experiment results indicate that the concentration ratio of guanidine gum powder can be more than 50 %, there is no obvious stratification in 30 days, the viscosity can meet the requirements of the system after hydration for 5 minutes and the product has good performance of cross-linking, heat resistance and shear resistance. The fracturing tests of twelve horizontal shale gas wells have been successfully carried out in south Pingqiao block of Fuling Shale Gas Field. The product performance can meet the requirements of field fracturing and realize the successive fracturing, and the price of fracturing fluid has been reduced by 32.7 %, and the purpose of cost reduction and efficiency increase has been realized.
Yongmei GAO , Weiheng WANG , Weiwei XIA , Hao LIU , Bin ZHANG . Development and application of predispersed instant guar gum[J]. Petroleum Reservoir Evaluation and Development, 2021 , 11(3) : 437 -442 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.03.020
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