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34 条记录 (耗时 0.012 秒)

    NON-TOXIC, INEXPENSIVE SYNTHETIC DRILLING FLUID
    4.
    发明授权
    NON-TOXIC, INEXPENSIVE SYNTHETIC DRILLING FLUID 失效
    无毒的，便宜MAN钻井液

    公开(公告)号：EP0840769B2

    公开(公告)日：2009-08-26

    申请号：EP96923741.1

    申请日：1996-07-10

    申请人： UNION OIL COMPANY OF CALIFORNIA

    发明人： VAN SLYKE, Donald, C.

    IPC分类号： C09K8/06 ,  C09K8/02

    CPC分类号： C09K8/64 ,  C09K8/34 ,  C09K8/60 ,  Y10S507/905

    摘要： A non-toxic, inexpensive synthetic fluid for use in wellbore fluids (e.g., drilling fluids) is selected from the group consisting of (A) fluids having (I) a pour point greater than about -30 °C (-22 °F) and (II) a cetane index greater than 50, and comprising (i) at least about 95 wt.% hydrocarbons containing 11 or more carbon atoms, (ii) greater that 5 wt.% hydrocarbons containing 18 or more carbon atoms, (iii) at least about 50 wt.% isoparaffins, (iv) at least about 90 wt.% total paraffins, (v) about 1 or less wt.% naphthenics, (vi) less than 0.1 volume percent aromatics, and (vii) at least 2 hydrocarbons containing a consecutive number of carbon atoms, and (B) fluids comprising (i) at least about 95 wt.% hydrocarbons containing 10 or more carbon atoms and (ii) at least about 90 wt.% n-paraffins.

    WELLBORE SERVICING FLUIDS AND METHODS OF MAKING AND USING SAME
    5.
    发明授权
    WELLBORE SERVICING FLUIDS AND METHODS OF MAKING AND USING SAME 有权
    井眼维修液及其制造和使用方法

    公开(公告)号：EP2928982B1

    公开(公告)日：2018-05-16

    申请号：EP13795360.0

    申请日：2013-11-05

    申请人： Halliburton Energy Services, Inc.

    发明人： DEEN, Larry, R.

    IPC分类号： C09K8/06 ,  C09K8/14 ,  E21B33/12 ,  E21B43/01 ,  E21B43/12

    CPC分类号： E21B49/087 ,  C09K8/06 ,  C09K8/14 ,  C09K2208/22 ,  E21B33/12 ,  E21B36/003

    摘要： A method of servicing a wellbore within a subterranean formation comprising providing a drill string disposed within the wellbore having one or more tubulars associated therewith and forming one or more annuli around the drill string; placing an insulating packer fluid comprising an aqueous base fluid and a viscosifying agent into at least one of the one or more annuli surrounding the drill string; and performing a drill stem test while the insulating packer fluid is in place. A method of servicing a wellbore within a subterranean formation comprising placing an insulating packer fluid in an annular space between a tubular and a marine riser extending from a surface vessel or platform and a subsea wellhead, wherein the insulating packer fluid comprising an aqueous base fluid and a viscosifying agent and has a thermal conductivity of from about 0.008 BTU/(hr·ft·F) to about 0.245 BTU/(hr·ft·F).

    CORROSION INHIBITORS FOR CLEAR, CALCIUM-FREE HIGH DENSITY FLUIDS.
    9.
    发明公开
    CORROSION INHIBITORS FOR CLEAR, CALCIUM-FREE HIGH DENSITY FLUIDS. 失效
    缓蚀剂CLEAR含钙高密度流体。

    公开(公告)号：EP0290486A4

    公开(公告)日：1988-12-22

    申请号：EP87906346

    申请日：1987-09-08

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： DADGAR AHMAD

    IPC分类号： C09K8/06 ,  E21B41/02 ,  E21B43/00

    CPC分类号： C09K8/06 ,  E21B41/02 ,  Y10S507/925 ,  Y10S507/939

    摘要： Corrosion inhibitors which can be used with calcium-free drilling, completion and workover fluids in carbonate or sulfate containing wells. More particularly, the invention relates to the use of sodium, ammonium and/or calcium thiocyanate alone, or in combination with specific aldose group antioxidants, as corrosion inhibitors. Aldose group antioxidants include arabinose, ascorbic acid, isoascorbic acid, gluconic acid, alkali metal, and alkaline earth or other metal ascorbates, isoascorbates and gluconates and mixtures thereof. Additionally, ammonium thioglycolate may be incorporated as a further corrosion inhibitor.