Stabilized carbon dioxide fluid composition and use thereof
    1.
    发明授权
    Stabilized carbon dioxide fluid composition and use thereof 失效
    稳定的二氧化碳流体组合物及其用途

    公开(公告)号:US06235701B1

    公开(公告)日:2001-05-22

    申请号:US09299402

    申请日:1999-04-26

    IPC分类号: C11D728

    CPC分类号: C09K8/703 C09K8/38

    摘要: A stable fluid comprising compressed fluid carbon dioxide, an inert gas and a fluorochemical stabilizer is disclosed. The fluid composition is useful in cleaning of metals, glass, ceramics, natural and synthetic polymers, and fabrics and in the extraction of desirables substances, such as the extraction of essential oils from plants.

    摘要翻译: 公开了包含压缩流体二氧化碳,惰性气体和含氟化合物稳定剂的稳定流体。 流体组合物可用于金属,玻璃,陶瓷,天然和合成聚合物以及织物的清洁和萃取物质,例如从植物中萃取精油。

    Foamed nitrogen in liquid CO2 for fracturing
    3.
    发明授权
    Foamed nitrogen in liquid CO2 for fracturing 有权
    在液体CO2中发泡氮气用于压裂

    公开(公告)号:US06729409B1

    公开(公告)日:2004-05-04

    申请号:US09857827

    申请日:2001-10-05

    IPC分类号: E21B4326

    CPC分类号: C09K8/703 C09K8/38

    摘要: A method for fracturing subterranean formations surrounding oil and gas wells using a fracturing fluid consisting of a foam constituted by a liquid phase and a gaseous phase. The liquid phase has a foam forming substance dissolved therein. The foam forming substance is preferably a surfactant such as a non-ionic hydrofluoroether surfactant. The liquid phase is preferably CO2 and the gaseous phase N2.

    摘要翻译: 使用由液相和气相构成的泡沫构成的压裂液压裂围绕油气井的地下地层的方法。 液相中溶解泡沫形成物质。 泡沫形成物质优选为非离子性氢氟醚表面活性剂等表面活性剂。 液相优选为二氧化碳和气相N2。