EMULSION STABILIZING AGENTS
    2.
    发明申请

    公开(公告)号:WO2023274976A1

    公开(公告)日:2023-01-05

    申请号:PCT/EP2022/067605

    申请日:2022-06-27

    Applicant: LAMBERTI SPA

    Inventor: VIGANO', Laura

    Abstract: The present invention relates to emulsion stabilizing agents, to subterranean treatments fluids comprising said emulsion stabilizing agents and to a method of treating subterranean formations using said subterranean treatments fluids. These emulsion stabilizing agents, besides having excellent emulsifying properties, do not cause the swelling and dispersion of clays and are able to provide subterranean 5 treatments fluids with excellent rheological behaviour even at high temperatures.

    SWELLING INHIBITORS FOR CLAYS AND SHALES
    9.
    发明申请
    SWELLING INHIBITORS FOR CLAYS AND SHALES 审中-公开
    剥离抑制剂粘土和沙拉

    公开(公告)号:WO2008031806A1

    公开(公告)日:2008-03-20

    申请号:PCT/EP2007/059495

    申请日:2007-09-11

    CPC classification number: C09K8/22 C09K8/12 C09K2208/12

    Abstract: Method for inhibiting the hydration of clays and shales during drilling operations comprising the use of a water base drilling fluid, which contains from 0.2 to 5 % by weight of the condensation product of a dicarboxylic acid having 4 to 10 carbon atoms with alkanolamines, diamines or polyalkyleneamines of formula R"'R"N-R'-XH, where X is O or NR 0 ; R 0 is hydrogen or a linear or branched alkyl group having from 1 to 6 carbon atoms, R' is a linear or branched, aliphatic or cicloaliphatic alkylene group having from 2 to 10 carbon atoms or R' is R””(NH-R””) n where R”” is ethylene or CH(CH 3 )CH 2 , n is a number from 1 to 6 and X is NR 0 ; R" and R"' can be equal or different from one another and are hydrogen or a linear or branched alkyl group having from 1 to 6 carbon atoms, optionally substituted with a hydroxyl group, the condensation product being in neutral form or in the form of salt.

    Abstract translation: 用于在钻井操作期间抑制粘土和页岩水合的方法,包括使用水基钻井液,其包含0.2至5重量%的具有4至10个碳原子的二羧酸与链烷醇胺,二胺或 式R“'R”N-R'-XH的聚亚烷基二胺,其中X是O或NR 0; R 0是氢或具有1至6个碳原子的直链或支链烷基,R'是具有2至10个碳原子的直链或支链,脂族或环脂族亚烷基,或者R'是 R“”(NH-R“”)其中R“”是乙烯或CH(CH 3 CH 3)CH 2,n是 数字1至6,X为NR 0; R“和R”'可以相同或不同,并且是氢或具有1至6个碳原子的直链或支链烷基,任选被羟基取代,缩合产物为中性形式或形式 盐。

Patent Agency Ranking