Process for drilling subterranean cavities
    17.
    发明授权
    Process for drilling subterranean cavities 有权
    钻孔地下洞的工艺

    公开(公告)号:US09249349B2

    公开(公告)日:2016-02-02

    申请号:US13992320

    申请日:2011-12-13

    IPC分类号: C09K8/38 C09K8/52 C09K8/70

    CPC分类号: C09K8/38 C09K8/52 C09K8/703

    摘要: A process for drilling cavities in subterranean formations includes a step of removal of the drill cuttings using an aqueous fluid in the form of a foam, obtained by mixing: an aqueous composition (Ci) including, per 100% by weight: from 0.5% by weight to 25% by weight of a compound of formula (I): R1—C(O)—NH—CH(COOM)-(CH2)n—COOM′ (I) in which n represents an integer equal to 1 or 2, R1 represents a linear or branched, saturated or unsaturated aliphatic hydrocarbon-based radical including from eight to eighteen carbon atoms, M represents a monovalent cation and M′, which is identical to or different from M, represents a hydrogen atom or a monovalent cation; or of a mixture of compounds of formula (I), and from 75% to 99.5% by weight of water, with a gas or a mixture of gases, chosen from air, nitrogen or carbon dioxide.

    摘要翻译: 用于在地下地层中钻孔的方法包括使用泡沫形式的水性流体去除钻屑的步骤,其通过以下方式获得:水性组合物(C i),其包含:每100重量%:0.5重量% 重量至25重量%的式(I)化合物:其中n表示等于1或2的整数的R1-C(O)-NH-CH(COOM) - (CH2)n-COOM'(I) R1表示包括8-18个碳原子的直链或支链饱和或不饱和脂族烃基,M表示一价阳离子,M'与M相同或不同,表示氢原子或一价阳离子 ; 或由式(I)化合物和75%至99.5%重量的水的混合物与选自空气,氮气或二氧化碳的气体或气体混合物。