密度和黏结性可控的PE/POE/CaCO3体系颗粒流道调整剂的制备  

Preparation of PE/POE/CaCO3 Composites Particles as Channel Flow Regulator with Adjustable Density and Adhesion

作　　者：李子甲 甄恩龙 焦保雷 钱真 甄卫军[2] 赵玲 LI Zijia;ZHEN Enlong;JIAO Baolei;QIAN Zhen;ZHEN Weijun;ZHAO Ling(Sinopec Northwest Petroleum Bureau,Urumqi 830011,China;School of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046,China)

机构地区：[1]中国石化集团西北石油局,乌鲁木齐830011 [2]新疆大学化学化工学院,乌鲁木齐830046

出　　处：《中国塑料》2020年第6期14-19,共6页China Plastics

基　　金：“十三五”国家重大专项“缝洞型油藏堵调及靶向酸压工艺技术”(2016ZX05014-005)。

摘　　要：采用聚乙烯(PE)、聚烯烃弹性体(POE)和碳酸钙(CaCO3)共混制备了聚合物类颗粒流道调整剂,考察了不同Ca-CO3含量和PE与POE比例条件下的PE/CaCO3、POE/CaCO3、PE/POE/CaCO3三类颗粒流道调整剂的密度、熔点熔程、黏结性能、力学性能差异。结果表明,颗粒流道调整剂的密度随CaCO3含量增加而增大,实现了1.05~1.20 g/cm3范围内可调;结合PE的熔融特性和POE的黏结性能,实现了黏结性能由PE/CaCO3共混物熔融黏结转为POE/CaCO3、PE/POE/CaCO3体系软化黏结的可控调节;通过调节CaCO3含量、PE与POE比例可以改变流道调整剂颗粒的熔点熔程和拉伸强度,相同CaCO3含量时PE/POE/CaCO3体系颗粒的拉伸强度随PE含量升高而增大。A series of polyethylene(PE)/polyolefin elastomer(POE)/CaCO3 blending particles were prepared as a channel flow regulator for the fractured-vuggy carbonate reservoir,and the effects of CaCO3 content and PE/POE mass ratio on the density,adhesion,melting behavior and tensile strength of the blending particles were investigated.The results indicated that the density of the channel flow regulator increased with an increase of CaCO3 content,and the addition of CaCO3 could meet the requirement for the adjustment of density from 1.05 to 1.20 g/cm3.The PE/POE blending particles with different contents of CaCO3 varied from melting adhesion to softening adhesion by a combination of the relatively high temperature melting behavior of PE and the good adhesion property of POE.The melting temperature range and tensile strength of PE/POE/CaCO3 composites were also easily manipulated by the CaCO3 content and PE/POE mass ratio.However,the tensile strength of PE/POE/CaCO3 composites was found to increase with an increase of PE content at the same CaCO3 content.

关 键 词：流道调整剂 聚乙烯 聚烯烃弹性体 碳酸钙 密度 黏结性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]