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公开(公告)号：US20190225876A1
公开(公告)日：2019-07-25
申请号：US16373126
申请日：2019-04-02
发明人： Li Jiang , Bruno Lecerf , Connor Coley , Philip Sullivan , Brent Busby , Jeremy Bedard
摘要： Methods for treating subterranean wells in which the producing formation is a carbonate comprise preparing a treatment fluid comprising either: (a) an aqueous solution of a multivalent-cation reacting polymer; (b) a solution comprising a fatty acid and an ethanolamine; (c) an aqueous acidic solution of one or more compounds whose calcium salts are insoluble; or (d) an aqueous solution comprising urea or alkane derivatives thereof or both and polyvinylpyrrolidone (PVP). The treatment fluid is placed in the well such that the solution contacts the carbonate formation at a pressure lower than the fracturing pressure. The treatment fluid is allowed to react with the carbonate formation, thereby depositing a film onto the formation surface or part of the formation surface. Then an acid solution is placed in the well such that the acid contacts the carbonate formation at a pressure lower than the fracturing pressure.
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公开(公告)号：US20180231684A1
公开(公告)日：2018-08-16
申请号：US15511336
申请日：2015-09-09
发明人： Timothy Jones , Nathan Lawrence , Go Fujisawa , Sheng Chao , Li Jiang
IPC分类号： G01V8/14 , G01N21/3577 , G01N21/552 , G01N21/15 , G01N21/3504 , G01N33/00 , E21B49/08
CPC分类号： G01V8/14 , E21B49/08 , E21B2049/085 , G01N21/15 , G01N21/3504 , G01N21/3577 , G01N21/552 , G01N33/004 , G01N2021/154 , G01N2201/0696 , G01N2201/12 , Y02A50/244
摘要： A sensor is provided for monitoring a mineral acid dissolved in a liquid. The sensor includes an internal reflection window which, in use, is in direct contact with the liquid. The sensor further includes a mid-infrared light source which directs a beam of mid-infrared radiation into said window for attenuated internal reflection at an interface between the window and the liquid. The sensor further includes a first narrow bandpass filter which preferentially transmits mid-infrared radiation over a band of wavelengths corresponding to an absorbance peak of the dissolved mineral acid to filter internally reflected mid-infrared radiation received from the window. The sensor further includes an infrared detector which detects filtered mid-infrared radiation transmitted through the first filter. The sensor further includes a processor arrangement, operably coupled to the infrared detector, which measures the intensity of the detected mid-infrared radiation transmitted through the first filter, and determines therefrom an amount of the mineral acid dissolved in the liquid.
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公开(公告)号：US09804117B2
公开(公告)日：2017-10-31
申请号：US13966093
申请日：2013-08-13
发明人： Albert Perez , Terizhandur S. Ramakrishnan , Wenlin Zhang , Li Jiang , Roy Koveleski , Quincy K. Elias
IPC分类号： G01N27/403 , G01N27/407
CPC分类号： G01N27/403 , G01N27/4074
摘要： Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488° C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid.
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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：US20160032700A1
公开(公告)日：2016-02-04
申请号：US14449899
申请日：2014-08-01
发明人： Li Jiang , Bruno Lecerf , Connor Coley , Philip Sullivan , Brent Busby , Jeremy Bedard
摘要： Methods for treating subterranean wells in which the producing formation is a carbonate comprise preparing a treatment fluid comprising either: (a) an aqueous solution of a multivalent-cation reacting polymer; (b) a solution comprising a fatty acid and an ethanolamine; (c) an aqueous acidic solution of one or more compounds whose calcium salts are insoluble; or (d) an aqueous solution comprising urea or alkane derivatives thereof or both and polyvinylpyrrolidone (PVP). The treatment fluid is placed in the well such that the solution contacts the carbonate formation at a pressure higher than or equal to the fracturing pressure. The treatment fluid is allowed to react with the carbonate formation, thereby depositing a film onto the formation surface or parts of the formation surface. Then an acid solution is placed in the well such that the acid contacts the carbonate formation at a pressure higher than or equal to the fracturing pressure.
摘要翻译： 用于处理生产地层为碳酸盐的地下井的方法包括制备处理流体，其包括：（a）多价阳离子反应聚合物的水溶液; （b）包含脂肪酸和乙醇胺的溶液; （c）钙盐不溶的一种或多种化合物的酸性水溶液; 或（d）包含尿素或其烷烃衍生物或二者的水溶液和聚乙烯吡咯烷酮（PVP）。 将处理流体放置在井中，使得溶液以高于或等于压裂压力的压力接触碳酸盐岩层。 使处理流体与碳酸盐岩层反应，从而将膜沉积到地层表面或地层表面上。 然后将酸溶液放置在井中，使得酸在高于或等于压裂压力的压力下接触碳酸盐岩层。
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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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公开(公告)号：US10942144B2
公开(公告)日：2021-03-09
申请号：US15723893
申请日：2017-10-03
发明人： Albert Perez , Terizhandur S. Ramakrishnan , Wenlin Zhang , Li Jiang , Roy Koveleski , Quincy K. Elias
IPC分类号： G01N27/403 , G01N27/407
摘要： Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488° C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid.
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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：US20150075797A1
公开(公告)日：2015-03-19
申请号：US14028039
申请日：2013-09-16
发明人： Li Jiang , Richard Hutchins , Murtaza Ziauddin , J. Ernest Brown , Syed A. Ali , Neil F. Hurley , John W. Still , Timothy G.J. Jones , Stephen Nigel Davies , Bruno Lecerf , Dmitriy Usoltsev
IPC分类号： E21B43/26
CPC分类号： E21B43/283
摘要： Rapidly pulsed injection fracture acidizing. A method comprises rapidly pulsed injection of a high reactivity fracture treatment fluid mode or substage alternated with one or more low reactivity treatment fluid modes or substages.
摘要翻译： 快速脉冲注射断裂酸化。 一种方法包括快速脉冲注射与一个或多个低反应性处理流体模式或分段交替的高反应性裂缝处理流体模式或分层。
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