Hollow glass microspheres/silicone rubber composite materials toward materials for high performance deep in-situ temperaturepreserved coring  

作　　者：Jian-Ping Yang Ling Chen Xiao-Bin Gu Zhi-Yu Zhao Cheng-Hang Fu Dong-Sheng Yang Dong-Zhuang Tian Zhi-Sheng Chen He-Ping Xie 

机构地区：[1]College of Polymer Science and Engineering,Sichuan University,Chengdu,610065,China [2]Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization,Institute of Deep Earth Sciences and Green Energy,College of Civil and Transportation Engineering,Shenzhen University,Shenzhen,518060,China [3]School of Mechanical Engineering,Sichuan University,Chengdu,610065,China [4]Jinshi Drilltech Company Limited,Tangshan,063004,Hebei [5]Institute of New Energy and Low-Carbon Technology,Sichuan University,Chengdu,610065,China [6]College of Water Resource&Hydropower,Sichuan University,Chengdu,610065,China [7]Xi'an Research Institute,China Coal Technology&Engineering Group Corp,Xi'an,710077,China

出　　处：《Petroleum Science》2022年第1期309-320,共12页石油科学（英文版）

基　　金：supported by the Program for Guangdong Introducing Innovative and Entrepreneurial Teams(No.2019ZT08G315);Shenzhen Basic Research Program(General Program)(No.JCYJ20190808153416970);National Natural Science Foundation of China No.51827901 and U2013603。

摘　　要：Deep petroleum resources are stored under high temperature and pressure conditions,with the temperature having a significant influence on the properties of rocks.Deep in-situ temperature-preserved coring(ITP-coring)devices were developed to assess deep petroleum reserves accurately.Herein,hollow glass microspheres(HGMs)/silicone rubber(SR)composites that exhibit excellent thermal insulation properties were prepared as thermal insulation materials for deep ITP-coring devices.The mechanism and process of heat transfer in the composites were explored,as well as their other properties.The results show that the HGMs exhibit good compatibility with the SR matrix.When the volume fraction of the HGMs is increased to 50%,the density of the HGMs/SR composites is reduced from 0.97 to 0.56 g/cm^(3).The HGMs filler introduces large voids into the composites,reducing their thermal conductivity to 0.11 W/m·K.The addition of HGMs into the composites further enhances the thermal stability of the SR,wherein the higher the HGMs filler content,the better the thermal stability of the composites.HGMs significantly enhance the mechanical strength of the SR.HGMs increase the compressive strength of the composites by 828%and the tensile strength by 164%.Overall,HGMs improve the thermal insulation,pressure resistance,and thermal stability of HGMs/SR composites.

关 键 词：In-situ temperature-preserved coring(ITP-coring) Deep in-situ conditions Thermal insulation materials HGMs/SR composites 

分 类 号：TE2[石油与天然气工程—油气井工程] TB332[一般工业技术—材料科学与工程]