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shen tou lv ji cha dui ruo ning jiao ti xi xing neng ying xiang shi yan yan jiu
Author(s): 
Pages: 101-104
Year: Issue:  5
Journal: Petrochemical Industry Application

Keyword:  弱凝胶视黏度剪切作用矿化度稳定性;
Abstract: 通过不同渗透率岩心单管驱替试验,研究了聚合物弱凝胶体系对岩心的封堵规律,当渗透率小于20×10-3 μm2时,封堵率高达98%,而随着渗透率的增大,封堵率下降.双管并联驱替试验结果表明,随渗透率级差的增加,高渗管分液量下降,当渗透率级差高于4时,高渗管渗透率减少,甚至低于低渗管的渗透率.将并联弱凝胶驱后的岩心再进行单岩心驱替试验,试验结果表明,随着高渗管渗透率的增加,弱凝胶的进入量增大,封堵效果增加.
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