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Hydrophobic epoxy resin coated proppants with ultra-high self-suspension ability and enhanced liquid conductivity

Petroleum Science 2021年第6期18卷 1753-1759页

作者： Fan Fan Feng-Xia Li Shou-Ceng Tian Mao Sheng Waleed Khan Ai-Ping Shi Yang Zhou Quan Xu State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development National Energy Shale Oil Research and Development CenterHarvard SEAS-CUPB Joint Laboratory on Petroleum ScienceChina University of Petroleum(Beijing)Beijing102249China

Proppant is a key material for enhancing unconventional oil and gas production which requires a long distance of migration and efficient liquid conductivity paths within the hydraulic ***,it is difficult to find a proppant with both high self-suspension ability and liquid ***,a simple method is developed to coat epoxy resin onto the ceramic proppant and fabricate a novel coated proppant with high hydrophobicity,self-suspension,and liquid conductivity *** with uncoated ceramic proppants,the epoxy resin coated(ERC) proppant has a high self-suspension ability nearly 16 times that of the uncoated ***,the hydrophobic property and the liquid conductivity of the ERC proppant increased by 83.8% and 16.71%,respectively,compared with the uncoated *** summary,this novel ERC proppant provides new insights into the design of functional proppants,which are expected to be applied to oil and gas production.

关键词： Coated proppant Hydrophobic property self-suspension Conductivity

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Reversible adhesion surface coating proppant

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Chinese Chemical Letters 2021年第1期32卷 553-556页

作者： Quan Xu Fan Fan Zhaohui Lu Mao Sheng Shouceng Tian Ye Zhang Linhua Pan Yang Zhou State Key Laboratory of Petroleum Resources and Prospecting Beijing Key Laboratory of Biogas Upgrading UtilizationHarvard SEAS-CUPB Joint Laboratory on Petroleum ScienceChina University of Petroleum(Beijing)Beijing 102249China National Joint Engineering Research Center for Shale Gas Exploration and Development Chongqing Institute of Geology and Mineral ResourcesChongqing 401120China

Proppant is a key material in the hydraulic fracturing process,which has been widely used in unconventional oil *** proppants are easy to sedimentate and accumulate at the entrance of shale fracture,which will block the diversion of water,oil and *** proppants(CPs) are fabricated by coating resin on normal ceramic proppants through a simple method,which is dramatically enhanced the supporting properties in shale fracture and easy to scale *** with uncoated ceramic proppants,the self-suspension ability of CPs is ~11 times higher,which are able to migrate and distribute farther and deeper inside the *** the same time,Coating enhanced the 23.7% of adhesive force in maximum,which makes the CPs easier to adhere on the fracture surface to supportthe shale ***,the liquid conductivity of CPs is 60% higher than uncoated ceramic proppants at13.6 MPa *** method is expected to fabricated varieties of proppantsfor shale fracture supporting to improve the exploration of unconventional oil and gas resources.

关键词： self-suspension Coating Proppants Hydraulic fracturing process Liquid conductivity

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