Breaker and displacement fluid and method of use
    1.
    发明授权
    Breaker and displacement fluid and method of use 有权
    断路器和排量流体及其使用方法

    公开(公告)号:US08932999B2

    公开(公告)日:2015-01-13

    申请号:US12032879

    申请日:2008-02-18

    摘要: A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.

    摘要翻译: 公开了在生产油或气体之前清洁井眼的方法,其中已经用形成反转乳液滤饼的反转乳液钻井泥浆钻了井筒。 该方法可以包括以下步骤:将破碎剂流体循环到井眼中,其中破碎剂流体包括含水流体,和亚氨基二乙酸或其盐。 任选地,还包括酸缓冲剂和加权时代。 配制破碎剂流体,使得在预定时间段之后,存在于井眼或井眼面上的滤饼基本上降解。 其他方法还可以包括用形成水基滤饼的水基钻井泥浆钻井井,其中该方法可以包括以下步骤:将破坏剂流体循环到井筒中,其中破碎剂流体可以包括水性流体, 和亚氨基二乙酸或其盐。

    Delayed breaker
    3.
    发明授权
    Delayed breaker 有权
    延时断路器

    公开(公告)号:US08387696B2

    公开(公告)日:2013-03-05

    申请号:US12670784

    申请日:2008-07-31

    IPC分类号: E21B43/22

    CPC分类号: C09K8/74 C09K2208/26

    摘要: A process that includes pumping a first wellbore fluid comprising an oxidative degradable polymer into a wellbore through a subterranean formation; pumping a second wellbore fluid comprising a pH-activated oxidative breaker into the wellbore; pumping a third wellbore fluid comprising a delayed acid source into the wellbore; and allowing the delayed acid source to acidify at least a portion of the wellbore to a pH of less than 7 so as to activate the pH-activated oxidative breaker at the lower pH and degrade the oxidative degradable polymers is disclosed.

    摘要翻译: 一种方法,其包括将包含氧化性可降解聚合物的第一井筒流体通过地下地层泵入井眼; 将包含pH激活的氧化断裂器的第二井筒流体泵入井眼; 将包含延迟酸源的第三井筒流体泵送到井筒中; 并且允许延迟的酸源将至少一部分井眼酸化至小于7的pH,以便在较低pH下活化pH活化的氧化性破乳剂并降解氧化降解聚合物。

    BREAKER AND DISPLACEMENT FLUID AND METHOD OF USE
    4.
    发明申请
    BREAKER AND DISPLACEMENT FLUID AND METHOD OF USE 有权
    断路器和位移流体及其使用方法

    公开(公告)号:US20080200354A1

    公开(公告)日:2008-08-21

    申请号:US12032879

    申请日:2008-02-18

    IPC分类号: C09K8/524

    摘要: A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.

    摘要翻译: 公开了在生产油或气体之前清洁井眼的方法,其中已经用形成反转乳液滤饼的反转乳液钻井泥浆钻了井筒。 该方法可以包括以下步骤:将破碎剂流体循环到井眼中,其中破碎剂流体包括含水流体,和亚氨基二乙酸或其盐。 任选地,还包括酸缓冲剂和加权时代。 配制破碎剂流体,使得在预定时间段之后,存在于井眼或井眼面上的滤饼基本上降解。 其他方法还可以包括用形成水基滤饼的水基钻井泥浆钻井井,其中该方法可以包括以下步骤:将破坏剂流体循环到井筒中,其中破碎剂流体可以包括水性流体, 和亚氨基二乙酸或其盐。

    DELAYED BREAKER
    5.
    发明申请
    DELAYED BREAKER 有权
    延迟断路器

    公开(公告)号:US20100270017A1

    公开(公告)日:2010-10-28

    申请号:US12670784

    申请日:2008-07-31

    IPC分类号: E21B43/27 C09K8/588

    CPC分类号: C09K8/74 C09K2208/26

    摘要: A process that includes pumping a first wellbore fluid comprising an oxidative degradable polymer into a wellbore through a subterranean formation; pumping a second wellbore fluid comprising a pH-activated oxidative breaker into the wellbore; pumping a third wellbore fluid comprising a delayed acid source into the wellbore; and allowing the delayed acid source to acidify at least a portion of the wellbore to a pH of less than 7 so as to activate the pH-activated oxidative breaker at the lower pH and degrade the oxidative degradable polymers is disclosed.

    摘要翻译: 一种方法,其包括将包含氧化性可降解聚合物的第一井筒流体通过地下地层泵入井眼; 将包含pH激活的氧化断裂器的第二井筒流体泵入井眼; 将包含延迟酸源的第三井筒流体泵送到井筒中; 并且允许延迟的酸源将至少一部分井眼酸化至小于7的pH,以便在较低pH下活化pH活化的氧化性破乳剂并降解氧化降解聚合物。

    Regeneration of catalyst comprising flushing with inert gas followed by
flushing with hydrogen
    7.
    发明授权
    Regeneration of catalyst comprising flushing with inert gas followed by flushing with hydrogen 失效
    催化剂的再生,包括用惰性气体冲洗,然后用氢气冲洗

    公开(公告)号:US5817589A

    公开(公告)日:1998-10-06

    申请号:US631605

    申请日:1996-04-02

    CPC分类号: B01J29/90 B01J38/10

    摘要: A process for regenerating a spent hydrogenation catalyst, comprising the steps of providing a catalyst comprising a support material selected from the group consisting of an inorganic oxide-zeolite composite, carbon and zeolite, and a catalytically active metal phase selected from the group consisting of partially reduced group IB metals and completely reduced group VIII metals, said metal phase being present in an amount of grater than or equal to about 0.03 wt %, and said catalyst having an initial diolefin hydrogenation activity, treating a hydrocarbon feedstock having a diolefin content of greater than or equal to about 0.1% and a nitrite content of greater than or equal to about 2 ppm with said catalyst until said initial diolefin hydrogenation activity of said catalyst decreases to a reduced diolefin hydrogenation activity, flushing said catalyst with an inert gas so as to remove traces of hydrocarbon from said catalyst and thereby provide a flushed catalyst, and regenerating said flushed catalyst by further flushing said flushed catalyst with hydrogen so as to provide a regenerated catalyst having a regenerated diolefin hydrogenation activity which is greater than said reduced diolefin hydrogenation activity.

    摘要翻译: 一种用于再生废氢化催化剂的方法,包括以下步骤:提供催化剂,其包含选自无机氧化物 - 沸石复合材料,碳和沸石的载体材料和催化活性金属相,所述催化活性金属相选自部分 还原的IB族金属和完全还原的VIII族金属,所述金属相的存在量大于或等于约0.03重量%,并且所述催化剂具有初始的二烯烃氢化活性,处理二烯烃含量更大的烃原料 所述催化剂的亚硝酸盐含量大于或等于约2ppm,并且所述催化剂的初始二烯烃氢化活性降低至降低的二烯氢化活性,用惰性气体冲洗所述催化剂,以便 从所述催化剂中除去痕量的烃,从而提供冲洗的催化剂,并再生sa 通过用氢进一步冲洗所述冲洗的催化剂以提供具有再生的二烯烃氢化活性的再生催化剂,其大于所述还原的二烯烃氢化活性。

    Production of tame from coker naphtha
    9.
    发明授权
    Production of tame from coker naphtha 失效
    从焦化石脑油生产温驯

    公开(公告)号:US5453550A

    公开(公告)日:1995-09-26

    申请号:US171561

    申请日:1993-12-21

    IPC分类号: C07C41/06

    CPC分类号: C07C41/06

    摘要: A process for the production of alkyl tert alkyl ether, comprising the steps of providing a liquid hydrocarbon feedstock containing diolefin in an amount greater than or equal to about 2% wt, mixing said feedstock with an alcohol selected from the group consisting of methanol, ethanol, propanol and mixtures thereof and with hydrogen so as to provide a mixture of said feedstock, alcohol and hydrogen and contacting said mixture with an etherification catalyst under etherification process conditions including a pressure sufficient to maintain said hydrogen in a liquid phase, and a space velocity (LHSV) of less than or equal to about 1 h.sup.-1 so as to provide said alkyl tert alkyl ether without poisoning said catalyst.

    摘要翻译: 一种制备烷基叔烷基醚的方法,包括以下步骤:提供含有大于或等于约2重量%量的二烯烃的液体烃原料,将所述原料与选自甲醇,乙醇 丙醇及其混合物和氢气,以提供所述原料,醇和氢的混合物,并在醚化过程条件下使所述混合物与醚化催化剂接触,所述醚化过程条件包括足以将所述氢保持在液相中的压力和空间速度 (LHSV)小于或等于约1h -1,以提供所述烷基叔烷基醚而不会使所述催化剂中毒。