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公开(公告)号：US12116859B2
公开(公告)日：2024-10-15
申请号：US17809759
申请日：2022-06-29
IPC分类号： E21B25/08 , C04B24/32 , C04B26/06 , C09K8/02 , C09K8/34 , C09K8/42 , C09K8/44 , E21B21/08 , E21B33/138 , E21B49/00 , C04B103/00 , C04B103/22
CPC分类号： E21B33/138 , C04B24/32 , C04B26/06 , C09K8/02 , C09K8/34 , C09K8/42 , C09K8/44 , E21B21/08 , E21B25/08 , E21B49/00 , C04B2103/0062 , C04B2103/22
摘要： The present invention relates to a method of taking a core sample of a formation. The method includes reducing a viscosity of a water binding starting material in a pumping form. The water binding starting material includes at least one polymer, at least one cross linker capable of curing the at least one polymer and a retarder capable of delaying cross linking of the at least one polymer. At least one additive is added to the water binding starting material to reduce the viscosity of the water binding starting material to less than 2 times of a viscosity of water at a selected temperature. The method further includes pumping the water binding starting material into a borehole in a formation, allowing the water binding starting material to cure in the formation, and taking the core sample from the formation containing the cured water binding starting material.
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公开(公告)号：US11753883B2
公开(公告)日：2023-09-12
申请号：US17644895
申请日：2021-12-17
发明人： Md Amanullah
IPC分类号： E21B21/00 , E21B33/138 , C09K8/02
CPC分类号： E21B21/003 , C09K8/02 , E21B33/138
摘要： Lost circulation material (LCM) and method including LCM objects each having a centrally-disposed solid core and tentacles extending from the solid core to entangle with tentacles of neighboring LCM objects to treat loss circulation in a wellbore in a subterranean formation. The LCM as solid cores and entangled tentacles at the loss circulation zone collects solids from wellbore fluid to form a barrier to treat the loss circulation.
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公开(公告)号：US11111428B2
公开(公告)日：2021-09-07
申请号：US16571961
申请日：2019-09-16
摘要： A wellbore treatment fluid comprising: a base fluid; and a water-soluble salt, the salt comprising: a cation; and an anion, wherein the anion is selected from phosphotungstate, silicotungstate, phosphomolybdate, and silicomolybdate. The treatment fluid can have a density greater than or equal to 13 pounds per gallon. A method of treating a portion of a subterranean formation penetrated by a well comprising: introducing the treatment fluid into the well.
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公开(公告)号：US10781693B2
公开(公告)日：2020-09-22
申请号：US16285910
申请日：2019-02-26
IPC分类号： E21B49/08 , C09K8/62 , G01N3/12 , C09K8/60 , C09K8/02 , C09K8/40 , C09K8/42 , C09K8/72 , E21B47/003 , E21B47/047 , E21B49/00 , G01N15/08 , G01N29/02 , G01N29/22 , G01N30/38 , G01N11/00
摘要： Methods and systems for predicting properties of well bore treatment fluids are disclosed. An embodiment includes a method of predicting fluid properties comprising: determining an operational window for a well bore fluid system; collecting data at vertices of the operational window; and developing a model comprising predicted properties for a plurality of data points within the operational window, wherein developing the model uses Barycentric interpolation.
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公开(公告)号：US10392554B2
公开(公告)日：2019-08-27
申请号：US15628185
申请日：2017-06-20
IPC分类号： C11D1/72 , C11D1/722 , C09K8/528 , C11D7/50 , C11D1/62 , C11D3/04 , C11D3/20 , C11D3/30 , C11D3/32 , C11D11/00 , B01D41/04 , C23G1/08 , C09K8/035 , C09K8/54 , C09K8/62 , B08B3/04 , B08B3/00 , E21B4/02 , B08B3/10 , C09K8/57 , C09K8/52 , B08B3/08 , C09K8/04 , C09K8/02
摘要： Disclosed is a method for treating a system, the method comprising providing a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, at least one alcohol selected from the group consisting of isopropyl alcohol and propargyl alcohol, an ethoxylate, and at least one ketone selected from the group consisting of methyl vinyl ketone, acetone, and acetophenone; and inserting the composition into at least one of an oil well and a gas well.
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公开(公告)号：US10315988B2
公开(公告)日：2019-06-11
申请号：US15749798
申请日：2016-07-28
申请人： STEPAN COMPANY
IPC分类号： C09K8/02 , C09K8/94 , C07G99/00 , C07C303/06 , C07C303/22 , C07C309/04 , C07C309/05 , C07C309/20 , C07C309/62
摘要： Methods of making an alpha-olefin sulfonic dimer acid (AOS dimer acid) are disclosed. In one method, an alpha-olefin is sulfonated, preferably with sulfur trioxide, to produce a mixture comprising an alpha-olefin sulfonic acid (AOS acid) and sulfur dioxide. This mixture is then heated while purging sulfur dioxide and hydrogen sulfide from the reactor to produce an AOS dimer acid composition. In another method, the AOS acid mixture is treated to remove sulfur dioxide and is then heated to produce an AOS dimer acid composition. With either method, the resulting AOS dimer acid composition has at least a 30% decrease in the level of elemental sulfur when compared with that of an AOS dimer acid composition prepared by a similar process in the absence of any active removal of sulfur dioxide or hydrogen sulfide. AOS dimer acid compositions and salts of the AOS dimer acids, which are useful surfactants for oilfield and other applications, are also disclosed.
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公开(公告)号：US10253626B2
公开(公告)日：2019-04-09
申请号：US15489364
申请日：2017-04-17
IPC分类号： E21B49/08 , G01N15/08 , G01N29/02 , E21B49/00 , C09K8/60 , C09K8/02 , C09K8/40 , C09K8/42 , C09K8/62 , C09K8/72 , E21B47/00 , E21B47/04 , G01N3/12 , G01N29/22 , G01N30/38 , G01N11/00
摘要： Methods and systems for predicting properties of well bore treatment fluids are disclosed. An embodiment includes a method of predicting fluid properties comprising: determining an operational window for a well bore fluid system; collecting data at vertices of the operational window; and developing a model comprising predicted properties for a plurality of data points within the operational window, wherein developing the model uses Barycentric interpolation.
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公开(公告)号：US10227519B2
公开(公告)日：2019-03-12
申请号：US14429997
申请日：2013-09-24
IPC分类号： C09K8/64 , C09K8/02 , C09K8/035 , C09K8/32 , C09K8/52 , C09K8/62 , C09K8/80 , E21B7/00 , E21B43/04 , E21B43/26
摘要： A base fluid for formulating wellbore fluids. The base fluid comprises a mixture of synthetic aliphatic hydrocarbons derived from a Fischer-Tropsch product stream and contains greater than 96% aliphatic hydrocarbons having a carbon number range of from C6 to C30. The percentage of homologues having a carbon number of C10 or less is less than about 3 wt %.
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公开(公告)号：US20180016886A1
公开(公告)日：2018-01-18
申请号：US15615737
申请日：2017-06-06
CPC分类号： E21B43/267 , C09K8/02 , C09K8/03 , C09K8/5086 , C09K8/805 , E21B7/00 , E21B43/025
摘要： Methods of fracturing a formation including using a fracturing fluid including an aggregating composition including heterocyclic aromatic amines, substituted heterocyclic aromatic amines, poly vinyl heterocyclic aromatic amines, co-polymers of vinyl heterocyclic aromatic amine and non amine polymerizable monomers (ethylenically unsaturated mononers and diene monomers), or mixtures or combinations thereof in the absence of phosphate esters or amine-phosphate reaction products during fracturing operations to alter self-aggregating properties and/or aggregation propensities of the particles, surfaces, and/or materials in or entrained in the fluid.
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公开(公告)号：US20170247605A1
公开(公告)日：2017-08-31
申请号：US15512019
申请日：2014-10-17
摘要： A wellbore treatment fluid comprising: a base fluid; and a water-soluble salt, the salt comprising: a cation; and an anion, wherein the anion is selected from phosphotungstate, silicotungstate, phosphomolybdate, and silicomolybdate. The treatment fluid can have a density greater than or equal to 13 pounds per gallon. A method of treating a portion of a subterranean formation penetrated by a well comprising: introducing the treatment fluid into the well.
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