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A novel model for the proppant equilibrium height in hydraulic fractures for slickwater treatments

Petroleum Science 2022年第1期19卷 254-263页

作者： Zhong-Wei Wu Chuan-Zhi Cui Yin-Zhu Ye Xiang-Zhi Cheng Japan Trivedi Shui-Qing-Shan Lu Yin Qian College of Petroleum Engineering China University of Petroleum(East China)Qingdao266580ShandongChina Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao266580ShandongChina Research Institute of Petroleum Exploration&Development PetroChinaBeijing100083China School of Mining and Petroleum Department of Civil and Environmental EngineeringUniversity of AlbertaEdmontonABT6G 2R3Canada

The proppant equilibrium height is the basis of investigating proppant distributions in artificial fractures and has a great significant influence on hydraulic fracturing *** are two shortcomings of current research on proppant equilibrium heights,one of which is that the effect of fracture widths is neglected when calculating the settling velocity and another of which is that the settling bed height is a constant when building the settling bed height growth rate *** fill those two shortcomings,this work provides a novel model for the proppant equilibrium height in hydraulic fractures for slickwater treatments.A comparison between the results obtained from the novel model and the published model and experimental results indicates that the proposed model is *** the sensitivity analysis,it is concluded that the proppant equilibrium height increases with an increasing proppant *** proppant equilibrium height decreases with an increase in the slickwater injection rate and increases with an increase in the proppant injection *** increase in proppant diameter results in an increasing the friction factor,which makes proppant equilibrium heights ***,the increase in proppant sizes results in an increase in proppant settling rates,which makes the proppant equilibrium height *** the effect of the proppant diameter on settling rates is more significant than that on friction factors,the equilibrium height increases with an increasing proppant *** work provides a research basis of proppant distributions during the hydraulic fracture.

关键词： Equilibrium height proppant settling Fracture width Slickwater Shale and tight reservoirs

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