NOUVEAU PROCEDE DE TRAITEMENT DES FORMATIONS ROCHEUSES ET NOUVEAUX POLYAMPHOLYTES
    42.
    发明公开
    NOUVEAU PROCEDE DE TRAITEMENT DES FORMATIONS ROCHEUSES ET NOUVEAUX POLYAMPHOLYTES 有权
    在维生素A之前,VERFAHREN ZUR BEHANDLUNG VON FELSFORMATIONEN

    公开(公告)号:EP2288631A1

    公开(公告)日:2011-03-02

    申请号:EP09772685.5

    申请日:2009-06-02

    摘要: The invention relates to a method for the treatment of rock formations which may or may not be underground and, more particularly, of oil or gas production wells, water-injection wells intended to flood hydrocarbon (oil or gas) reservoirs or gas mines or gas storage wells. The invention is characterized in that it includes a step comprising the injection, into said rock formation or well, of a microgel obtained by dilution in water of a self-invertible inverse latex or of a self-invertible inverse microlatex of a crosslinked polyelectrolyte, obtained by copolymerization, in the presence of a crosslinking agent of partially- or totally-salified free 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid, with at least one cationic monomer chosen from: 2,N,N,N-tetramethyl-2-[(1-oxo-2-propenyl)amino]propanammonium chloride; N,N,N-trimethyl-3-[(1-oxo-2-propenyl)amino]propanammonium chloride; diallyldimethylammonium chloride; N,N,N-trimethyl-2-[(1-oxo-2-propenyl)]ethanammonium chloride; N,N,N-trimethyl-2-[(1-oxo-2-methyl-2-propenyl)]ethanammonium chloride; or N,N,N-trimethyl-3-[(1-oxo-2-methyl-2-propenyl)amino]propanammonium chloride; and with at least one neutral monomer chosen from: acrylamide; N,N-dimethylacrylamide; N-[2-hydroxy-1,1-bis(hydroxymethyl)­ethyl]­propen­amide; or 2-hydroxyethyl acrylate.

    摘要翻译: 一种用于处理可能是也可能不是地下的岩层的方法,更具体地说是用于油气生产井,用于淹没烃(油或气)储层或瓦斯矿或储气井的注水井的方法包括: 通过在交联聚电解质的交联聚电解质的自发反相胶乳的水中稀释获得的微凝胶或通过共聚获得的微凝胶,在交联聚合电解质的交联剂存在下, 部分或完全盐化的游离的2-甲基-2 - [(1-氧代-2-丙烯基)氨基] -1-丙磺酸与至少一种阳离子单体选自:2,N,N,N-四甲基 - 2 - [(1-氧代-2-丙烯基)氨基]丙基氯化铵; N,N,N-三甲基-3 - [(1-氧代-2-丙烯基)氨基]丙基氯化铵; 二烯丙基二甲基氯化铵; N,N,N-三甲基-2 - [(1-氧代-2-丙烯基)]乙基氯化铵; N,N,N-三甲基-2 - [(1-氧代-2-甲基-2-丙烯基)]乙基氯化铵; 或N,N,N-三甲基-3 - [(1-氧代-2-甲基-2-丙烯基)氨基]丙基氯化铵; 和至少一种选自以下的中性单体:丙烯酰胺; N,N-二甲基丙烯酰胺; N- [2-羟基-1,1-双(羟甲基) - 乙基]丙烯酰胺; 或丙烯酸2-羟基乙酯。

    Method for providing coated particulate materials suspended in aqueous gels
    44.
    发明公开
    Method for providing coated particulate materials suspended in aqueous gels 失效
    Herstellungsverfahren von beschichtetenteilchenförmigenMaterialen,suspendiert inwässrigenGelen。

    公开(公告)号:EP0313243A2

    公开(公告)日:1989-04-26

    申请号:EP88309406.2

    申请日:1988-10-07

    IPC分类号: E21B43/02 C08L63/00 C08J3/20

    摘要: Particulate material eg. sand (20) is continuously coated with a consolidatable resin composition (26) and formed as a suspension in a gelled aqueous carrier liquid (10) for transport (42) to a subterranean zone in which the sand is consolidated. In the method, substantially continuous streams of a gelled aqueous carrier liquid (10), uncoated particulate material (20), a resin composition (24) which will subsequently harden, and a surface active agent (16), are mixed (14) whereby the particulate material is continuously coated with the resin composition and simultaneously suspended in the gelled aqueous carrier liquid.

    摘要翻译: 颗粒材料例如 砂(20)连续地涂覆有可固结的树脂组合物(26),并且作为悬浮液形成为凝胶水性载体液体(10),用于运输(42)到其中所述砂被固结的地下区域。 在该方法中,将基本上连续的胶凝水性载体液体(10),未涂覆的颗粒材料(20),随后硬化​​的树脂组合物(24)和表面活性剂(16)的流混合(14),由此 颗粒材料连续地涂覆有树脂组合物并且同时悬浮在凝胶状的载体液体中。

    Methods of minimizing fines migration in subterranean formations
    46.
    发明公开
    Methods of minimizing fines migration in subterranean formations 失效
    最小化亚细胞移植中的细胞迁移的方法

    公开(公告)号:EP0171163A3

    公开(公告)日:1986-07-30

    申请号:EP85304605

    申请日:1985-06-27

    IPC分类号: E21B43/25 E21B43/02 E21B21/00

    摘要: A method of preventing or reducing the migration of fines in a permeable subterranean formation, comprising: contacting said fines in said subterranean formation with an effective amount of an organic copolymer having recurring structural monomer units formed in a random fashion of the formula:

    wherein R' and R 4 are independently each an alkylene group having 1 to about 4 carbon atoms; R 2 , R 3 , R 5 , R 6 , and R 7 are independently each either methyl or ethyl; A is chloride, bromide, iodine, hydroxide or methyl sulfate; s is an integer equal to the number of anions required to maintain electronic neutrality; x, y, and z are integers, the sum of which equals the total number of monomer units in the copolymer required to give a molecular weight in the range of from about 100,000 to about 1,500,000; and
    monomer unit I is present in the range of from about 80 to about 98 percent by weight of the copolymer; monomer unit II is present in the range of from about 2 to about 20 percent by weight of the copolymer; and, monomer unit III is present in the range of from about 0 to about 20 percent by weight of the copolymer.