摘要: Super fine cement is a kind of smashed ordinary G grade oil well cement. Though its chemical property isn't changed, its physical properties are improved, which brings obvious advantage in recementing operations such as casing lea... 展开 Super fine cement is a kind of smashed ordinary G grade oil well cement. Though its chemical property isn't changed, its physical properties are improved, which brings obvious advantage in recementing operations such as casing leakage repairing, out-casing channel plugging and high water cut zone plugging etc. Since super fine cement firstly being produced in XianHe Oil Production Plant in 1994, super fine cement plugging technology has been developed in many aspects including super fine cement series, plugging method, result examination method and matching tools. Up to now, it has become a mature technology and gained good results in developing the potentiality of remaining oil in old oilfields. 收起