Thermal conductive proppant with self-suspension ability

作     者：Guo-Qing Xu Xiu-Ping Lan Si-Si hao Kai-Yi Hu Si-Meng Qi Li-Dong Geng Quan Xu Yang Zhou 

作者机构：Sinopec Key Laboratory of Drilling Completion and Fracturing of Shale Oil and GasSINOPEC Research Institute of Petroleum Engineering Co.LtdBejing102249China State Key Laboratory of Petroleum Resources and ProspectingBejing Key Laboratoryof Biogas Upgrading UtilizationHarvard SEAS-CUPB Joint Laboratory on Petroleum ScienceChina University of Petroleum(Beijing)Beijing102249China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2023年第20卷第3期

页      面：1742-1749页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 0703[理学-化学] 082002[工学-油气田开发工程] 

基　　金：supported by the National Key Research and Development Plan(No.2020YFC1808102) General project of Beijing Natural Fund(No.3222018) the Basic Research Program on Deep Petroleum Resource Accumulation and Key Engineering Technologies(No.U19B6003) the Science Foundation of China University of Petroleum,Bejing(Nos.2462020YXZz018,2462019BJRC007,2462019BJRC007,2462019QNXZ02). 

主　　题：Exploitation of shaleoil In situ mining Technology Thermally conductive proppant Heat transfer 

摘      要：The in situ mining technology is applied to the exploitation of medium-and low-maturity shale oil,which can use heaters to warm up the oil shale formations and pyrolyze the kerogen.Due to the low thermal conductivity of oil shale,electric heaters need extra equipment to improve heat transfer efficiency.In this study,a thermally conductive proppant is fabricated by coating epoxy-resin and graphite on ceramic proppants for the first time,which could support the fracturing crack and transfer heat.The thermal conduction property of epoxy-resin and graphite coated proppants(EGPs)is 245%higher than that of uncoated proppants,which can transfer more heat to the oil shale formation and accelerate the conversion of kerogen.The adhesive property of EGPs is improved by 47.9%under the load force of 1500 nN,which prolongs the time for the fracture to close.In summary,this novel proppant is expected to assist in-situ mining technology in the production of medium and low-maturity shale oil.