| 摘要 |
<p>A cross-linking composition comprises a zirconium triethanolamine complex, a tetra(hydroxyalkyl)ethylenediamine, water and optionally, a polyol. The composition can be used for cross-linking organic polymers over a wide range of pH. By varying the composition and optionally adding a delay agent, the composition provides flexibility in rate of cross-linking. Further disclosed are methods to use the composition further comprising a cross-linkable organic polymer in oil field applications for hydraulic fracturing and plugging of permeable zones and leaks in subterranean formations.</p> |
