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Process for drilling subterranean cavities
Process for drilling subterranean cavities
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机译：地下洞的钻进工艺
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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.
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机译：在地下地层中钻孔的方法包括以下步骤：使用泡沫形式的水性流体去除钻屑，该水性流体是通过混合以下物质而获得的：水性组合物（Ci）包括，按重量计，按重量计从0.5％至0.5％重量的25％的式（I）化合物：R 1 -C（O）-NH-CH（COOM）-（CH 2 ） n -COOM'（I），其中n表示等于1或2的整数，R 1 表示直链或支链，饱和或不饱和脂族烃基，包括8个在18个碳原子中，M表示一价阳离子，与M相同或不同的M'表示氢原子或一价阳离子。式（I）的化合物或式（I）化合物的混合物，和75重量％至99.5重量％的水，以及选自空气，氮气或二氧化碳的气体或气体混合物。
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