INHIBITING CORROSION IN HIGH TEMPERATURE,HIGH PRESSURE GAS WELLS
    91.
    发明申请
    INHIBITING CORROSION IN HIGH TEMPERATURE,HIGH PRESSURE GAS WELLS 审中-公开
    在高温,高压气体中抑制腐蚀

    公开(公告)号:WO1980002699A1

    公开(公告)日:1980-12-11

    申请号:PCT/US1980000629

    申请日:1980-05-23

    CPC classification number: C23F11/08 C09K8/54 Y10S507/939

    Abstract: A relatively nonvolatile, high molecular weight oil soluble corrosion inhibitor carrier produced by adding at least 40 parts by weight of elemental sulfur per 100 parts by weight dialkyl disulfide oil to an amine activated dialkyl disulfide oil which exhibits corrosion inhibition on its own and in combination with conventional oil based corrosion inhibitor additives. Such a carrier is particularly useful in sustaining a liquid film forming phase at bottomhole conditions of high temperature, high pressure gas wells wherein essentially no pretroleum condensate phase exists.

    TWO-STAGE PROCESS FOR THE HYDROGENATION OF MALEIC ACID TO 1,4-BUTANEDIOL
    93.
    发明申请
    TWO-STAGE PROCESS FOR THE HYDROGENATION OF MALEIC ACID TO 1,4-BUTANEDIOL 审中-公开
    将马来酸氢化成1,4-丁二醇的两阶段方法

    公开(公告)号:WO0218316A3

    公开(公告)日:2002-06-20

    申请号:PCT/US0126765

    申请日:2001-08-27

    CPC classification number: C07C29/149 C07C31/207

    Abstract: In the process for the conversion of maleic acid to gamma-butyrolactone. 1.4-butanediol and/or tetrahydrofuran, a feedstream comprising maleic acid is hydrogenated in a first hydrogenation zone to produce a reaction product comprising succinic acid and unreacted hydrogen which is then supplied to a second hydrogenation zone, where succinic acid is converted to 1,4-butanediol, the temper atures of the feedstream comprising maleic acid and the first hydrogenation zone are controlled such that the temperature of mal eic acid in the feedstream and the first hydrogenation zone does not exceed about 130 DEG C, thereby minimizing the corrosive effects of the maleic acid and prolonging reactor life and improving overall process economics.

    Abstract translation: 在马来酸转化为γ-丁内酯的过程中。 在1,4-丁二醇和/或四氢呋喃中,包含马来酸的原料流在第一氢化区中氢化以产生包含琥珀酸和未反应的氢的反应产物,然后将其供应到第二氢化区,其中琥珀酸转化成1,4 - 丁二醇中,控制包含马来酸和第一加氢区的进料流的温度,使得进料流和第一加氢区中的丙二酸的温度不超过约130℃,由此使 马来酸和延长反应器寿命并改善整个过程的经济性。

    HYDRAULIC MOTOR FOR A DRILL HOLE CORING TOOL AND METHOD
    94.
    发明申请
    HYDRAULIC MOTOR FOR A DRILL HOLE CORING TOOL AND METHOD 审中-公开
    液压电动机用于钻孔工具和方法

    公开(公告)号:WO1981000018A1

    公开(公告)日:1981-01-08

    申请号:PCT/US1980000789

    申请日:1980-06-23

    CPC classification number: E21B49/06 E21B4/02 E21B4/18 E21B7/061 E21B44/005

    Abstract: An apparatus operable on a wireline logging cable for drilling a hole in the sidewall of a drill hole which comprises a hydraulically operated backup shoe (20) for wedging the apparatus at a selected location in the drill hole and a hydraulic motor (32) with a drilling bit (31) connected thereto for rotation by the hydraulic motor. In the improvement of this invention, the hydraulic motor has guide track means (52) to provide positive engagement of the vanes (54) of the rotor (47) with the periphery of the hydraulic motor's rotor cavity and the rotor has conduit means (62) for the communication of fluid between the rear portion of the vanes contacting the periphery of the rotor cavity, during the rotation of the rotor and the rear portion of the vanes within the rotor. A method of sidewall coring with the apparatus is also disclosed.

    Abstract translation: 一种在电缆测井电缆上操作的装置,用于在钻孔的侧壁中钻孔,该装置包括用于将装置楔入钻孔中的选定位置的液压操作的后备支撑板(20)和具有 连接在其上的钻头(31)由液压马达旋转。 在本发明的改进中,液压马达具有导向装置(52),以提供转子(47)的叶片(54)与液压马达的转子腔的周边的正接合,并且转子具有导管装置(62 ),用于在转子和转子内的叶片的后部旋转期间在与转子腔的周边接触的叶片的后部之间的流体的连通。 还公开了一种使用该装置的侧壁取芯的方法。

    INHIBITING CORROSION IN HIGH TEMPERATURE,HIGH PRESSURE GAS WELLS
    95.
    发明申请
    INHIBITING CORROSION IN HIGH TEMPERATURE,HIGH PRESSURE GAS WELLS 审中-公开
    在高温高压气井中抑制腐蚀

    公开(公告)号:WO1980002700A1

    公开(公告)日:1980-12-11

    申请号:PCT/US1980000631

    申请日:1980-05-23

    CPC classification number: C09K8/54 C23F11/10 Y10S166/902 Y10S507/939

    Abstract: A relatively nonvolatile, high molecular weight corrosion inhibitor and inhibitor carrier produced by activating a dialkyl disulfide oil by the addition of a relatively high molecular weight aliphatic amine (e.g., a fatty amine, particularly the N-alkyl-1,3-propane diamines) and optionally further increasing the molecular weight by the addition of elemental sulfur, which exhibits corrosion inhibition on its own and in combination with a conventional oil base corrosion inhibitor additive. Such a composition is particularly useful in sustaining a liquid film forming phase at bottomhole conditions for high temperature, high pressure gas wells wherein essentially no petroleum condensate phase exists.

    Abstract translation: 通过加入相对高分子量的脂肪族胺(例如二甲基亚砜)来活化二烷基二硫化物油,从而生产相对不挥发的高分子量腐蚀抑制剂和抑制剂的载体。 脂肪胺,特别是二胺正烷基-1,3-丙烷),并可能通过加入元素硫的进一步增加分子量,其通过自身的腐蚀抑制特性和组合的抑制剂添加剂呈现 传统的油基腐蚀。 这样的组合物是用于在孔的底部保持形成液膜的相位如气井或普遍存在的高温和高压或实际上的条件是特别有用的,实际上没有相位 的石油凝析油。

    CONJUGATE FILAMENT HAVING HIGH NITRILE CONTENT

    公开(公告)号:JPH11241225A

    公开(公告)日:1999-09-07

    申请号:JP35358898

    申请日:1998-12-11

    Abstract: PROBLEM TO BE SOLVED: To obtain a conjugate filament having high nitrile content, excellent in processability and useful for woven or knitted fabric, nonwoven fabric, or the like by including plural specific polymers arranged in core-sheath configuration. SOLUTION: This conjugate filament having high nitrile content comprises two or more kinds of polymers arranged in sheath/core configuration. The sheath polymer is selected from the group consisting of an acrylonitrile olefinic unsaturated polymer composed of 50-95 wt.% acrylonitrile monomer and 5-50 wt.% olefinic unsaturated monomer such as methyl methacrylate, an organic polymer such as a polypropylene and a combination thereof. The sheath component content is 99-1%, preferably 90-10% based on the filament. The core polymer is selected from the group consisting of the above acrylonitrile olefin-based unsaturated polymer, the above organic polymer and a combination thereof, but the core polymer is different in the composition from the sheath polymer. The core component content is 1-99%, preferably 10-90% and is thermally stable.

    PURIFICATION OF ACETONITRILE BY DISTILLING RECOVERY BY DISTILLATION AND ION EXCHANGE RESIN TREATMENT PROCESS

    公开(公告)号:JPH1135542A

    公开(公告)日:1999-02-09

    申请号:JP18375097

    申请日:1997-07-09

    Abstract: PROBLEM TO BE SOLVED: To obtain a highly purified acetonitrile applicable to chromatography in a few process and a low cost by subjecting crude acetonitrile as a by-product in producing acrylonitrile to distillation and an ion exchange resin treatment. SOLUTION: The objective compound is obtained by distilling crude CH3 CN by using three distilling columns having overhead reflux loops of respectively having a reflux ratio higher than (3:1), (3.4:1) and (6.4:1), in turn, under >=1 atm., to remove HCN and generating a bottom product containing (A) a CH3 CN/ water azeotropic mixture and water, separating the component A to (B) a CH3 CN/water azeotropic mixture having a higher CH3 CN concentration and a bottom product containing water under =1 atm., then generating a CH3 CN/water azeotropic mixture containing substantially whole amount of water derived from the component B, a bottom product containing CH3 CN and heavy organic compounds, and a side stream containing (C) a highly purified CH3 CN, thus purifying the component C by an acidic ion exchange resin.

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