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    • 2. 发明申请
    • METHOD FOR CHANGING THE WETTABILITY OF ROCK FORMATIONS
    • 改变岩石的湿度的方法
    • US20090325826A1
    • 2009-12-31
    • US12490783
    • 2009-06-24
    • Lirio QuinteroDavid E. ClarkThomas A. Jones
    • Lirio QuinteroDavid E. ClarkThomas A. Jones
    • C09K8/68
    • C09K8/58C09K8/584
    • Single-phase microemulsions (SPMES) and in situ-formed microemulsions in water-wetting pills may be used to reverse the wettability of subterranean rock previously drilled with an oil-based mud or synthetic-based mud before pumping a high fluid loss squeeze pill or crosslink pill or other water-based pill. This wettability reversal occurs by solubilization of the non-polar material into the microemulsion when the water-wetting pill contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some amount of organic phase, contacts the reservoir formation and reverses the wettability encountered in the porous media. The microemulsions are effective for reversing the wettability that occurs from non-polar materials which include, but are not necessarily limited to, oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof.
    • 可以使用单相微乳液(SPMES)和水润湿丸中的原位形成的微乳液来逆转先前用油基泥浆或合成基泥浆钻孔的地下岩石的润湿性,然后再抽取高流失液挤压丸剂或 交联丸或其他水性药丸。 当湿润药片与非极性材料接触时,通过将非极性材料溶解到微乳液中来发生这种润湿性反转。 当一种或多种表面活性剂和极性相(例如水或盐水)和最终一些量的有机相接触储层形成并​​反转在多孔介质中遇到的润湿性时,可以形成原位微乳液。 微乳液可有效地逆转由非极性材料发生的润湿性,这些非极性材料包括但不一定限于油基泥浆,合成基泥浆,石蜡,沥青质,乳液,s块及其组合。