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US08636066B2 Method of enhancing productivity of a formation with unhydrated borated galactomannan gum 有权
用未水合硼酸半乳甘露聚糖胶增强地层生产率的方法

Method of enhancing productivity of a formation with unhydrated borated galactomannan gum
Abstract:
A well treatment fluid containing borated galactomannan may be used to isolate a productive zone in a well having multiple productive zones. The fluid is particularly useful in treatment of wells containing a mechanical zonal isolation system in the productive zone of interest. The fluid is pumped into the well in a substantially non-hydrated form. The well treatment fluid is therefore highly effective in preferentially sealing or blocking productive zones in the formation since delayed hydration of the fluid may be controlled for up to several hours.
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