Method for protecting metal surfaces against corrosion in liquid or gaseous media
    32.
    发明授权
    Method for protecting metal surfaces against corrosion in liquid or gaseous media 失效
    保护金属表面免受液体或气体介质腐蚀的方法

    公开(公告)号:US06261346B1

    公开(公告)日:2001-07-17

    申请号:US09319144

    申请日:1999-07-29

    IPC分类号: C23F1114

    摘要: A process useful for protecting metal surfaces against corrosion in is presented involving: (a) forming a corrosion inhibitor having a compound corresponding to formula (I): where R1, R2 and R3 independently of one another represent an alkyl or hydroxyalkyl group containing 1 to 4 carbon atoms, an aryl or alkylaryl group or a group corresponding to formula (II): A− is an anion, n is the number 2 or 3, p is a number of 1 to 3 and R5 is an alkyl or alkenyl group containing 7 to 23 carbon atoms and 0, 1, 2 or 3 double bonds, and R4 is a group corresponding to formula (II) or (III): where R1, R2 and R3 are as defined above and Z is a group —(CH2)m— or a group corresponding to formula (IV):  m is an integer of 1 to 6, X is a group NH or an oxygen atom and D is a dimer fatty acid residue containing on average 36 to 54 carbon atoms; (b) combining the corrosion inhibitor with liquid aqueous, liquid non-aqueous or gaseous media; and (c) contacting the corrosion inhibitor with metal. The corrosion inhibitor used in the is biodegradable and shows low aquatic toxicity.

    摘要翻译: 提出了一种用于保护金属表面免受腐蚀的方法,涉及:(a)形成具有对应于式(I)的化合物的腐蚀抑制剂:其中R 1,R 2和R 3彼此独立地表示含有1至 4个碳原子,芳基或烷基芳基或对应于式(II)的基团:A-是阴离子,n是数2或3,p是1至3的数,R 5是含有 7至23个碳原子和0,1,2或3个双键,R4是与式(II)或(III)相应的基团:其中R1,R2和R3如上定义,Z是基团 - (CH2 )m-或对应于式(IV)的基团:m是1至6的整数,X是NH或氧原子,D是含有平均36至54个碳原子的二聚脂肪酸残基; (b)将腐蚀抑制剂与液体水性,液体非水性或气态介质结合; 和(c)使腐蚀抑制剂与金属接触。 所用的腐蚀抑制剂是可生物降解的,水生毒性低。

    Powder-form lubricant additives for water-based drilling fluids
    33.
    发明授权
    Powder-form lubricant additives for water-based drilling fluids 失效
    用于水性钻井液的粉末状润滑剂添加剂

    公开(公告)号:US4802998A

    公开(公告)日:1989-02-07

    申请号:US70858

    申请日:1987-07-08

    IPC分类号: C09K8/06 C09K7/02

    CPC分类号: C09K8/06

    摘要: Powder-form lubricant additives for water-based drilling fluids which contain from 95 to 30% by weight, based on the total weight of the powder, of highly disperse silicas, from 5 to 70% by weight, based on the total weight of the powder, of one or more fatty acid alkyl esters corresponding to the following general formula.R.sup.1 COOR.sup.2 (I)in which R.sup.1 is a straight-chain or branched, saturated or mono- or polyunsaturated C.sub.9 -C.sub.21 alkyl or alkenyl radical and R.sup.2 is a straight-chain or branched C.sub.1 -C.sub.12 alkyl radical, and/or polyesters obtainable by reaction of di-, oligo- or poly-hydroxy compounds with carboxylic acids and/or distillation residues from the transesterification of native fatty acid esters and, optionally, other additives known for lubricating purposes in quantities of from 0 to 20% by weight, based on the total weight of the powder, and to the use of these powder-form additives in drilling fluids for oil well and mine drilling in quantities of from 0.01 to 5% by weight, based on the total weight of the drilling fluid.

    摘要翻译: 水基钻井液的粉末状润滑剂添加剂,基于粉末的总重量为95〜30重量%,高分散二氧化硅为5〜70重量%,以总重量计 一种或多种脂肪酸烷基酯对应于下列通式的粉末。 R1COOR2(I)其中R1是直链或支链饱和或单或多不饱和C 9 -C 21烷基或烯基,R 2是直链或支链C 1 -C 12烷基,和/或可通过反应获得的聚酯 的二羟基,低聚或多羟基化合物与羧酸和/或来自天然脂肪酸酯和任选的其它已知用于润滑目的的其它添加剂的酯交换反应的羧酸和/或蒸馏残余物,其量为0至20重量%,基于 基于钻井液的总重量,粉末的总重量以及这些粉末形式的添加剂在油井和钻井钻井液中的使用量为0.01至5重量%。

    Method for demulsifying emulsions
    35.
    发明授权
    Method for demulsifying emulsions 失效
    破乳乳液的方法

    公开(公告)号:US06310106B1

    公开(公告)日:2001-10-30

    申请号:US09485269

    申请日:2000-05-12

    IPC分类号: B01D1705

    摘要: A process for breaking an emulsion into a water phase and an oil phase involving: (a) providing an emulsion containing an oil phase and a water phase; (b) providing an alkoxylated C10-24 carboxylic acid ester derived by the addition of ethylene oxide and/or propylene oxide onto a ring opened epoxidized C10-24 carboxylic acid triglyceride which is ring opened with a C6-18 carboxylic acid; and (c) contacting the emulsion with a demulsifying effective amount of the alkoxylated C10-24 carboxylic acid ester. Said process has application on crude oil emulsions.

    摘要翻译: 一种将乳液破碎成水相和油相的方法,包括:(a)提供含有油相和水相的乳液; (b)提供通过将环氧乙烷和/或环氧丙烷加成到用C6-18羧酸开环的开环环氧化C10-24羧酸甘油三酸酯上得到的烷氧基化C10-24羧酸酯; 和(c)使乳液​​与破乳有效量的烷氧基化C10-24羧酸酯接触。 所述方法适用于原油乳液。

    Process for removing solid asphalt residues produced in the petroleum industry
    38.
    发明授权
    Process for removing solid asphalt residues produced in the petroleum industry 失效
    去除石油工业生产的固体沥青残渣的工艺

    公开(公告)号:US06368422B1

    公开(公告)日:2002-04-09

    申请号:US09380699

    申请日:1999-11-26

    IPC分类号: C23G500

    CPC分类号: C09K8/524

    摘要: Methods and compositions for dissolving adherent petroleum residues which occur in the production and processing of petroleum in which esters of the following formula are employed: R1—COO—(CnH2nO)x—R2  (I) which R1 is an alkyl group containing 6 to 22 carbon atoms or a (CH2)m—COOR4 group, R2 and R4 independently of one another represent an alkyl group containing 1 to 8 carbon atoms, n is the number 2 or 3 and m is a number of 1 to 6 and x is 0 or a number of 1 to 12.

    摘要翻译: 用于溶解在石油生产和加工中发生的粘附石油残渣的方法和组合物,其中使用下式的酯:其中R1是含有6-22个碳原子的烷基或(CH2)m -COOR4基团,R2 和R 4彼此独立地表示含有1至8个碳原子的烷基,n为数2或3,m为1至6的数,x为0或数为1至12。

    Method of boosting surface consolidation of soil threatened by erosion
    39.
    发明授权
    Method of boosting surface consolidation of soil threatened by erosion 失效
    强化受侵蚀威胁的土壤表面固结的方法

    公开(公告)号:US6122860A

    公开(公告)日:2000-09-26

    申请号:US91797

    申请日:1998-12-22

    CPC分类号: C09K17/20 C09K17/22

    摘要: The invention relates to a process for intensifying the surface stabilization of soil susceptible to erosion by introduction of water-based adhesion-promoting impregnating compounds based on esters of polyvinyl alcohol with C.sub.1-5 monocarboxylic acids and mixtures thereof with higher monocarboxylic acids (binders) using surface-active and biologiclly compatible wetting agents. The process is characterized in that impregnation of the soil is carried out in several stages and in that an aqueous preparation containing the wetting agents is used at least in the first impregnating stage. Binder is preferably used in a comparatively small quantity in this pre-impregnation stage.

    摘要翻译: PCT No.PCT / EP96 / 05602 Sec。 371日期1998年12月22日第 102(e)日期1998年12月22日PCT 1996年12月13日PCT公布。 出版物WO97 / 23579 日期1997年7月3日本发明涉及通过引入基于聚乙烯醇与C1-5一元羧酸的酯的水基增粘浸渍化合物及其与较高单羧酸的混合物来增强易受侵蚀的土壤的表面稳定化的方法 使用表面活性和生物相容润湿剂的酸(粘合剂)。 该方法的特征在于,土壤的浸渍在几个阶段进行,并且至少在第一浸渍阶段中使用含有润湿剂的水性制剂。 在该预浸渍阶段中,粘合剂优选以相对较少的量使用。

    Use of surface-active alpha-sulfo-fatty acid di-salts in water and oil
based drilling fluids and other drill-hole treatment agents
    40.
    发明授权
    Use of surface-active alpha-sulfo-fatty acid di-salts in water and oil based drilling fluids and other drill-hole treatment agents 失效
    在水和油基钻井液和其他钻孔处理剂中使用表面活性α-磺基脂肪酸二盐

    公开(公告)号:US5508258A

    公开(公告)日:1996-04-16

    申请号:US430703

    申请日:1995-04-28

    摘要: Described is the use of surface-active alpha-sulfofatty acid di-salts as ecologically compatible emulsifiers of the W/O type and O/W type, respectively, in fluid and pumpable drilling fluids and other fluid drilling-hole treatment agents which comprise a continuous or a dispersed oil phase together with an aqueous phase and which are suitable for an environmentally acceptable exploitation of geological resources, for example oil or natural gas deposits. The invention further relates to inverted drilling fluids based on a continuous oil phase and, present therein, a dispersed aqueous phase which, in addition to the emulsifiers, contain further conventional auxiliary agents such as thickeners, fluid-loss additives, weighting agents, water-soluble salts and/or alkali reserves. The inverted drilling fluids according to the invention are characterized in that they contain surface-active di-salts of the type indicated as emulsifier or as an emulsifier component together with an ecologically compatible continuous oil phase.

    摘要翻译: 描述了表面活性α-磺基脂肪酸二盐在流体和可泵送钻井液和其它流体钻井 - 空穴处理剂中分别用作W / O型和O / W型的生态相容的乳化剂,其包括 连续或分散的油相以及水相,并且适用于对环境可接受地开采地质资源,例如石油或天然气沉积物。 本发明还涉及基于连续油相的反向钻井液,并且其中存在分散的水相,除了乳化剂之外,还包含另外的常规辅助剂如增稠剂,流体损失添加剂,加重剂, 可溶性盐和/或碱储备。 根据本发明的倒置钻井液的特征在于它们含有表示为乳化剂的表面活性二盐或作为乳化剂组分以及与生态相容的连续油相。