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公开(公告)号：US20150240147A1
公开(公告)日：2015-08-27
申请号：US14189714
申请日：2014-02-25
发明人： Li Jiang , Salvador Ayala , Bruno Lecerf , Richard Hutchins , Timothy G. J. Jones , Murtaza Ziauddin , Chad Kraemer , Jian He
摘要： Oilfield treatment compositions contain water, hydrochloric acid and urea. The urea and water may be present at a urea/water weight ratio between 0.8 and 12.0, and the hydrochloric acid and urea may be present at a urea/hydrochloric acid molar ratio between 0.1 and 0.5. The compositions are present as one liquid phase. The volumes of the compositions are substantially higher than those of the water volumes; consequently, the amount of water necessary to perform various well-service operations is lower.
摘要翻译： 油田处理组合物含有水，盐酸和尿素。 尿素和水可以以0.8和12.0之间的尿素/水重量比存在，并且盐酸和尿素可以以0.1至0.5的尿素/盐酸摩尔比存在。 组合物作为一个液相存在。 组合物的体积显着高于水体积; 因此，执行各种良好服务操作所需的水量较低。
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公开(公告)号：US20150034315A1
公开(公告)日：2015-02-05
申请号：US13955521
申请日：2013-07-31
发明人： Li Jiang , Bruno Lecerf , Murtaza Ziauddin , Jian He , Boingoc Dang
IPC分类号： C09K8/68 , E21B43/267
CPC分类号： C09K8/68 , C09K8/725 , C09K8/74 , C09K2208/30 , E21B43/267
摘要： A method includes providing an oilfield treatment fluid including an aqueous HCl solution having greater than 15% HCl by weight, and a fixing agent (FA) in a molar ratio of FA:HCl of between 0.5 and 2.5 inclusive. The FA is urea and/or a urea derivative. The oilfield treatment fluid further includes a viscosifying agent that is not a plant-based polysaccharide gum. The method further includes providing the oilfield treatment fluid to a high pressure pump, and operating the high pressure pump to treat a formation fluidly coupled to a wellbore.
摘要翻译： 一种方法包括提供一种油田处理流体，其包含重量大于15％的HCl的HCl水溶液，和FA：HCl的摩尔比在0.5和2.5之间的固定剂（FA）。 FA是尿素和/或尿素衍生物。 油田处理液还包括不是植物性多糖胶的增粘剂。 该方法还包括将油田处理流体提供给高压泵，并且操作高压泵以处理流体连接到井眼的地层。
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公开(公告)号：US09573808B2
公开(公告)日：2017-02-21
申请号：US13955394
申请日：2013-07-31
发明人： Li Jiang , Bruno Lecerf , Timothy G. J. Jones , Richard Hutchins , Murtaza Ziauddin , Andrey Mirakyan , Jian He , Chad Kraemer
IPC分类号： C01B7/01
CPC分类号： C01B7/01
摘要： An aqueous solution includes HCl present in an amount exceeding 37% by weight. The solution further includes a fixing agent that is urea and/or a urea derivative. The fixing agent is present in the solution in a molar ratio of between 0.25 and 2.0 of fixing agent to HCl, inclusive.
摘要翻译： 水溶液包含超过37重量％的HCl。 该溶液还包括作为尿素和/或尿素衍生物的固定剂。 固定剂以0.25至2.0的固定剂与HCl的摩尔比存在于溶液中。
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公开(公告)号：US20170015891A1
公开(公告)日：2017-01-19
申请号：US15278331
申请日：2016-09-28
发明人： Li Jiang , Bruno Lecerf , Timothy G. J. Jones , Murtaza Ziauddin , Richard Hutchins , Jian He , Jack Li , Chad Kraemer
摘要： Oilfield treatment compositions contain water, hydrochloric acid at a concentration between 15 wt % and 45.7 wt % and a first and second fixing agent. The first fixing agent comprises urea, a urea derivative or both. The second fixing agent may be a mixture or amines and alcohols. These compositions provide corrosion inhibition when exposed to steel. The compositions may also contain an inhibitor aid.
摘要翻译： 油田处理组合物含有浓度为15重量％至45.7重量％之间的水，盐酸和第一和第二固定剂。 第一固定剂包括尿素，尿素衍生物或二者。 第二固定剂可以是混合物或胺和醇。 这些组合物当暴露于钢时提供腐蚀抑制作用。 组合物还可以含有抑制剂助剂。
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公开(公告)号：US20150037234A1
公开(公告)日：2015-02-05
申请号：US13955394
申请日：2013-07-31
发明人： Li Jiang , Bruno Lecerf , Timothy G.J. Jones , Rick Hutchins , Murtaza Ziauddin , Andrey Mirakyan , Jian He , Chad Kraemer
IPC分类号： C01B7/01
CPC分类号： C01B7/01
摘要： An aqueous solution includes HCl present in an amount exceeding 37% by weight. The solution further includes a fixing agent that is urea and/or a urea derivative. The fixing agent is present in the solution in a molar ratio of between 0.25 and 2.0 of fixing agent to HCl, inclusive.
摘要翻译： 水溶液包含超过37重量％的HCl。 该溶液还包括作为尿素和/或尿素衍生物的固定剂。 固定剂以0.25至2.0的固定剂与HCl的摩尔比存在于溶液中。
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公开(公告)号：US20150034318A1
公开(公告)日：2015-02-05
申请号：US13955468
申请日：2013-07-31
发明人： Li Jiang , Timothy G.J. Jones , Rick Hutchins , Bruno Lecerf , Murtaza Ziauddin , Jian He
CPC分类号： E21B43/25 , C09K8/04 , C09K8/74 , E21B21/062
摘要： A method of treating a formation includes preparing an aqueous solution having HCl in an amount between greater than 15% and 45.7% by weight, inclusive. The prepared aqueous solution includes a fixing agent (FA) present in a molar ratio of FA:HCl between 0.15 and 2.5 inclusive, where the FA is urea and/or a urea derivative, and further includes water present in an amount sufficient to dissolve the HCl and the FA. The aqueous solution includes substantially no polysaccharides.The method further includes providing an oilfield treatment fluid including the aqueous solution to a high pressure pump operating the high pressure pump to treat a wellbore and/or the formation fluidly coupled to the wellbore.
摘要翻译： 处理地层的方法包括制备具有大于15重量％至45.7重量％（含）重量的HCl的水溶液。 所制备的水溶液包括以FA：HCl的摩尔比在0.15和2.5之间（其中FA为尿素和/或尿素衍生物）存在的固定剂（FA），并且还包括以足以溶解 HCl和FA。 水溶液基本上不含多糖。 该方法还包括向包含高压泵的高压泵提供包括该水溶液的油田处理流体，以处理井筒和/或流体耦合到井筒的地层。
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公开(公告)号：US20180044042A1
公开(公告)日：2018-02-15
申请号：US15790928
申请日：2017-10-23
发明人： Li Jiang , Bruno Lecerf , Murtaza Ziauddin , Richard D. Hutchins , Timothy G.J. Jones , Jian He
摘要： Aqueous compositions contain hydrochloric acid at a concentration between 8 wt % and 28 wt % inclusive. The amino acid; hydrochloric acid mole ratio may be between 0.2 and 1.5. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Such compositions have utility as retarders for acid compositions employed in the stimulation of subterranean formations. Slowing the reaction between the acid and formation helps maximize formation permeability and productivity.
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公开(公告)号：US09796490B2
公开(公告)日：2017-10-24
申请号：US14062291
申请日：2013-10-24
发明人： Li Jiang , Bruno Lecerf , Murtaza Ziauddin , Richard D. Hutchins , Timothy G. J. Jones , Jian He
摘要： Aqueous compositions contain hydrochloric acid at a concentration between 8 wt % and 28 wt % inclusive. The amino acid; hydrochloric acid mole ratio may be between 0.2 and 1.5. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Such compositions have utility as retarders for acid compositions employed in the stimulation of subterranean formations. Slowing the reaction between the acid and formation helps maximize formation permeability and productivity.
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公开(公告)号：US09476287B2
公开(公告)日：2016-10-25
申请号：US14072395
申请日：2013-11-05
发明人： Li Jiang , Bruno Lecerf , Timothy G.J. Jones , Murtaza Ziauddin , Richard Hutchins , Jian He , Jack Li , Chad Kraemer
摘要： Oilfield treatment compositions contain water, hydrochloric acid at a concentration between 15 wt % and 45.7 wt % and a first and second fixing agent. The first fixing agent comprises urea, a urea derivative or both. The second fixing agent may be a mixture or amines and alcohols. These compositions provide corrosion inhibition when exposed to steel. The compositions may also contain an inhibitor aid.
摘要翻译： 油田处理组合物含有浓度为15重量％至45.7重量％之间的水，盐酸和第一和第二固定剂。 第一固定剂包括尿素，尿素衍生物或二者。 第二固定剂可以是混合物或胺和醇。 这些组合物当暴露于钢时提供腐蚀抑制作用。 组合物还可以含有抑制剂助剂。
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公开(公告)号：US20150114647A1
公开(公告)日：2015-04-30
申请号：US14062291
申请日：2013-10-24
发明人： Li Jiang , Bruno Lecerf , Murtaza Ziauddin , Richard D. Hutchins , Timothy G.J. Jones , Jian He
摘要： Aqueous compositions contain hydrochloric acid at a concentration between 8 wt % and 28 wt % inclusive. The amino acid; hydrochloric acid mole ratio may be between 0.2 and 1.5. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Such compositions have utility as retarders for acid compositions employed in the stimulation of subterranean formations. Slowing the reaction between the acid and formation helps maximize formation permeability and productivity.
摘要翻译： 水性组合物含有浓度在8重量％至28重量％之间的盐酸。 氨基酸; 盐酸摩尔比可以在0.2-1.5之间。 存在足够的水以溶解盐酸和氨基酸。 这样的组合物可用作用于刺激地下地层的酸组合物的缓凝剂。 减轻酸和地层之间的反应有助于最大限度地提高地层渗透性和生产率。
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