首页|Preparation and performance evaluation of the slickwater using novel polymeric drag reducing agent with high temperature and shear resistance ability

Preparation and performance evaluation of the slickwater using novel polymeric drag reducing agent with high temperature and shear resistance ability

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Slickwater fracturing fluids are widely used in the development of unconventional oil and gas resources due to the advantages of low cost,low formation damage and high drag reduction performance.How-ever,their performance is severely affected at high temperatures.Drag reducing agent is the key to determine the drag reducing performance of slickwater.In this work,in order to further improve the temperature resistance of slickwater,a temperature-resistant polymeric drag reducing agent(PDRA)was synthesized and used as the basis for preparing the temperature-resistant slickwater.The slickwater system was prepared with the compositions of 0.2 wt％PDRA,0.05 wt％drainage aid nonylphenol pol-yoxyethylene ether phosphate(NPEP)and 0.5 wt％anti-expansion agent polyepichlorohydrin-dimethylamine(PDM).The drag reduction ability,rheology properties,temperature and shear resis-tance ability,and core damage property of slickwater were systematically studied and evaluated.In contrast to on-site drag reducing agent(DRA)and HPAM,the temperature-resistant slickwater dem-onstrates enhanced drag reduction efficacy at 90 ℃,exhibiting superior temperature and shear resis-tance ability.Notably,the drag reduction retention rate for the slickwater achieved an impressive 90.52％after a 30-min shearing period.Additionally,the core damage is only 5.53％.We expect that this study can broaden the application of slickwater in high-temperature reservoirs and provide a theoretical basis for field applications.

Unconventional resourcesPolymeric drag reducing agentSlickwaterHigh drag reduction rateTemperature resistance

Ming-Wei Zhao、Zhen-Feng Ma、Cai-Li Dai、Wei Wu、Yong-Quan Sun、Xu-Guang Song、Yun-Long Cheng、Xiang-Yu Wang

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National Key Laboratory of Deep Oil and Gas,China University of Petroleum(East China),Qingdao,266580,Shandong,China

Shandong Key Laboratory of Oilfield Chemistry,China University of Petroleum(East China),Qingdao,266580,Shandong,China

Sinopec Shengli Oilfield,Dongying,257001,Shandong,China

Department of Chemical and Materials Engineering,University of Alberta,Edmonton AB T6G 1H9,Canada

East China Petroleum Bureau of Sinopec,Nanjing,210011,Jiangsu,China

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国家自然科学基金国家自然科学基金国家自然科学基金Taishan Scholar Young Expert

522224035207433352120105007tsqn202211079

2024

10.1016/j.petsci.2023.11.004

石油科学(英文版)
中国石油大学（北京）

石油科学(英文版)

EI
影响因子：0.88
ISSN：1672-5107
年,卷(期)：2024.21(2)
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