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64 条记录 (耗时 0.017 秒)

    Methods for quantifying nitrogen-containing compounds in subterranean treatment fluids
    3.
    发明授权
    Methods for quantifying nitrogen-containing compounds in subterranean treatment fluids 有权

    公开(公告)号：US10718749B2

    公开(公告)日：2020-07-21

    申请号：US15560154

    申请日：2015-04-20

    申请人： Halliburton Energy Services, Inc.

    发明人： Zhao Deng ,  Jay Paul Deville ,  Philip Wayne Livanec

    IPC分类号： G01N33/88 ,  G01N33/00 ,  G01N15/06 ,  G01N33/48 ,  G01N35/00 ,  G01N33/44 ,  C01C1/28 ,  G01N1/40 ,  G01N30/88 ,  E21B41/00

    摘要： It can sometimes be difficult to quantify the amount of polymer present in a subterranean treatment fluid, particularly at a job site. Methods for analyzing a treatment fluid for a polymer can comprise: receiving a sample of a treatment fluid comprising a nitrogen-containing polymer; placing the sample of the treatment fluid and an aqueous base in an oilfield retort; heating the sample of the treatment fluid and the aqueous base together in the oilfield retort at least until the nitrogen-containing polymer has been substantially hydrolyzed to one or more volatile nitrogen compounds; distilling the one or more volatile nitrogen compounds from the oilfield retort; and determining a quantity of the nitrogen-containing polymer in the sample of the treatment fluid based upon a quantity of the one or more volatile nitrogen compounds distilled from the oilfield retort. Analyses of other nitrogen-containing compounds may take place similarly.

    Process for removing NH.sub.3 from a liquid stream
    8.
    发明授权
    Process for removing NH.sub.3 from a liquid stream 失效
    从液体流中除去NH 3的方法

    公开(公告)号：US5244645A

    公开(公告)日：1993-09-14

    申请号：US769282

    申请日：1991-10-01

    申请人： Humbert H. Chu

    发明人： Humbert H. Chu

    IPC分类号： B01D1/18 ,  C01C1/10 ,  C01C1/242 ,  C01C1/28 ,  C02F1/58

    CPC分类号： C01C1/242 ,  B01D1/18 ,  C01C1/10 ,  C01C1/28 ,  C02F1/586

    摘要： This invention is a process for removing NH.sub.3 from a NH.sub.3 -containing liquid stream. The process contains the following steps: (a) passing a NH.sub.3 -containing first liquid stream, a heated first gaseous stream, and an ammonium salt-containing second liquid stream obtained from step (d) of this process to a spray drying zone thereby spray drying the liquid stream and producing a spray drying zone effluent containing ammonia-containing gas and solid particles containing ammonium salts; (b) passing the spray drying zone effluent to a solid/gas separating means thereby separating and removing at least a portion of the solid particles and thereby producing a second gaseous stream comprising ammonia and entrained solid particles containing ammonium salts; (c) passing the second gaseous stream to a scrubbing zone to scrub the second gaseous stream, at scrubbing conditions, in the presence of an inorganic or organic acid thereby forming a gaseous stream substantially free of ammonia and an ammonium salt-containing liquid stream containing ammonium salts; and (d) passing at least a portion of the ammonium salt-containing liquid stream as the second liquid stream to the spray drying zone.

    摘要翻译： 本发明是从含NH 3的液体物流中除去NH 3的方法。 该方法包括以下步骤：（a）将含NH 3的第一液体流，加热的第一气流和从该方法的步骤（d）获得的含铵盐的第二液体物流送入喷雾干燥区，从而喷雾 干燥液体流并产生含有含氨气体和含有铵盐的固体颗粒的喷雾干燥区流出物; （b）将喷雾干燥区流出物通入固体/气体分离装置，从而分离和除去至少一部分固体颗粒，从而产生包含氨和夹带的含有铵盐的固体颗粒的第二气流; （c）在洗涤条件下，在无机或有机酸的存在下，使第二气流进入洗涤区以洗涤第二气流，从而形成基本上不含氨的含有铵盐的液态物流，其含有 铵盐; 和（d）将至少一部分含铵盐的液体流作为第二液体流送入喷雾干燥区。