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21.发明授权
公开(公告)号：US4963273A
公开(公告)日：1990-10-16
申请号：US245267
申请日：1988-09-16
IPC分类号： C09K8/06
CPC分类号： C09K8/06 , Y10S507/905
摘要： The present invention provides a modified liquid phase drilling fluid having desirable properties of shale swelling inhibition, lubrication, and high temperature performance. The fluid does not rely on the incorporation of inorganic salts or high molecular weight water soluble polymers for control of shale swelling or shale disintegration and exhibits performance characteristics, approaching those of oil base drilling fluids, without the objectionable properties of hydrocarbon oils or its potential hazardous impact on the environment. The fluid is comprised of the following: (1) a liquid phase containing; (a) a water phase comprising fresh water, seawater, brine, simulated brine, or mixtures thereof; and (b) a water-soluble component selected from the class consisting of polyhydric alcohols, glycol, glycol ethers, polypropylene glycols, polyethylene glycols, ethylene oxide-propylene oxide copolymers ("EO-PO"), alcohol-initiated EO-PO copolymers and/or mixtures thereof, the ratio of said water-soluble component in the total liquid phase being from about 5% to about 50% by volume; (2) a viscosifier for suspension of solids in said liquid phase; and (3) a filtration control agent. The fluid with the water soluble component will exhibit a lubricity coefficient lower than that for substantially the same fluid without the water soluble component as determined by the American Petroleum Institute's "Procedure for Determination of Lubricity Coefficient (Tentative)" (1980), and the linear swelling on a reconstituted "gumbo" shale inserted for about 60 minutes of said drilling fluid being from lower than that for substantially the same fluid without the water soluble component, as measured by the "Swelling Test", "Rigsite Shale Evaluation Techniques for Control of Shale-related Wellbore Instability Problems", SPE/IADC Paper No. 16054, pages 52-53, (1987).
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公开(公告)号：US4663076A
公开(公告)日：1987-05-05
申请号：US748919
申请日：1985-06-26
CPC分类号： C09K8/36 , Y10S516/07
摘要： The present invention relates to a surfactant for use in invert emulsion drilling fluids, the invert emulsion drilling fluid produced therefrom, and a method of drilling, completing and working over a subterranean well utilizing said drilling fluid. The drilling fluid comprises an emulsion formed by producing a diamide having from between about 20 mole percent and about 35 mole percent of a polyamine, and from between about 30 mole percent and about 70 mole percent of a fatty acid having from between about 6 to about 20 carbon atoms therein, the diamide thereafter being further reacted with from between about 15 mole percent and about 35 mole percent of a tricarboxylic acid. The total amine value of said oligamide being from between about 10 to about 30, and the acid value of said oligamide being from between about 26 to about 46. When the surfactant is diluted to about 70 w/w percent concentration with a suitable solvent, the ES.sub.3, as defined herein, of said emulsion drilling fluid will exceed about 400 volts, the ES.sub.5, as defined herein, will be greater than the ES.sub.4, and the ES.sub.5 will be greater than about 1,000 volts. Alternatively, the electrical stability of the emulsion drilling fluid, when using the API Electrical Stability Test, should be at least about 1,000 volts.
摘要翻译： 本发明涉及用于倒转乳液钻井液的表面活性剂，由其制备的反相乳液钻井液，以及利用所述钻井液钻井，完井和在地下井上工作的方法。 钻井流体包括通过产生具有约20摩尔％至约35摩尔百分数的多胺和约30摩尔％至约70摩尔％的具有约6至约70摩尔％的脂肪酸的二酰胺形成的乳液 20个碳原子，其后的二酰胺进一步与约15摩尔％至约35摩尔％的三羧酸反应。 所述寡胺的总胺值为约10至约30，所述寡胺的酸值为约26至约46.当用合适的溶剂将表面活性剂稀释至约70w / w％浓度时， 如本文所定义的，所述乳液钻井流体的ES3将超过约400伏，如本文所定义的ES5将大于ES4，并且ES5将大于约1000伏特。 或者，当使用API电气稳定性试验时，乳液钻井液的电稳定性应至少为约1000伏特。
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公开(公告)号：US4575428A
公开(公告)日：1986-03-11
申请号：US609025
申请日：1984-05-10
CPC分类号： C09K8/36 , Y10S516/06 , Y10S516/07
摘要： The present invention relates to a surfactant for use in invert emulsion drilling fluids, the invert emulsion drilling fluid produced therefrom, and a method of drilling, completing and working over a subterranean well utilizing said drilling fluid. The drilling fluid comprises an emulsion formed by producing a diamide having from between about 20 mole percent and about 35 mole percent of a polyamine, and from between about 30 mole percent and about 70 mole percent of a fatty acid having from between about 6 to about 20 carbon atoms therein, the diamide thereafter being further reacted with from between about 15 mole percent and about 35 mole percent of a tricarboxylic acid. The total amine value of said oligamide being from between about 10 to about 30, and the acid value of said oligamide being from between about 26 to about 46. When the surfactant is diluted to about 70 w/w percent concentration with a suitable solvent, the ES.sub.3, as defined herein, of said emulsion drilling fluid will exceed about 400 volts, the ES.sub.5, as defined herein, will be greater than the ES.sub.4, and the ES.sub.5 will be greater than about 1,000 volts. Alternatively, the electrical stability of the emulsion drilling fluid, when using the API Electrical Stability Test, should be at least about 1,000 volts.
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公开(公告)号：US08627902B2
公开(公告)日：2014-01-14
申请号：US13167342
申请日：2011-06-23
申请人： Aaron C. Hammer , Dennis K. Clapper
发明人： Aaron C. Hammer , Dennis K. Clapper
IPC分类号： E21B47/04
CPC分类号： E21B47/1015 , E21B21/08 , E21B49/005
摘要： A method for estimating a depth from which cuttings have been recovered from a well may include varying a parameter of one or more marking agents added into a drilling fluid circulated into the well and recovering the cuttings from the well. The depth may be estimated by estimating a value associated with the marking agent that marks the cuttings. A system for estimating a depth from which cuttings have been recovered from a well includes at least one marking agent configured to mark the cuttings and a marking agent dispensing device configured to add the at least one marking agent into a drilling fluid circulated into the well. The marking agent dispensing device may be further configured to vary a parameter of the at least one marking agent.
摘要翻译： 用于估计从井中回收切屑的深度的方法可以包括改变添加到循环到井中的钻井液中的一种或多种标记试剂的参数，并从井中回收切屑。 可以通过估计与标记切屑的标记剂相关联的值来估计深度。 用于估计从井中回收切屑的深度的系统包括构造成标记切屑的至少一个标记试剂和构造成将至少一种标记试剂添加到循环到孔中的钻井液中的标记试剂分配装置。 标记剂分配装置还可以被配置为改变至少一个标记剂的参数。
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25.发明授权Polyalkyl methacrylate copolymers for rheological modification and filtration control for ester and synthetic based drilling fluids 有权用于酯和合成基钻井液的流变改性和过滤控制的聚烷基甲基丙烯酸酯共聚物公开(公告)号：US06204224B1
公开(公告)日：2001-03-20
申请号：US09416685
申请日：1999-10-12
IPC分类号： C09K706
CPC分类号： C09K8/32
摘要： A drilling fluid system for use in oil and gas well drilling operations is described having a rheological modifier/control agent comprising a polyalkyl methacrylate copolymer containing a small amount of vinyl pyrrolidone, a weighting agent, optionally an organophilic clay, with a base fluid making up the balance. The drilling fluid may be oil, invert emulsion, and in particular synthetic base fluid where the continuous phase may be synthetic esters olefins, paraffins, mineral oil or diesel oil, and the like. These copolymers prevent or reduce barite sag and provide cutting transport in these drilling systems.
摘要翻译： 描述了一种用于油气井钻井操作的钻井液系统，其具有流变改性剂/控制剂，其包含含有少量乙烯基吡咯烷酮的聚甲基丙烯酸烷基酯共聚物，任选的亲有机粘土的增重剂，基础流体组成 余额。 钻井液可以是油，反相乳液，特别是合成基础油，其中连续相可以是合成酯，烯烃，石蜡，矿物油或柴油等。 这些共聚物防止或减少重晶石松弛，并在这些钻井系统中提供切割输送。
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26.发明授权公开(公告)号：US06194216B1
公开(公告)日：2001-02-27
申请号：US09506074
申请日：2000-02-16
IPC分类号： G01N3100
CPC分类号： E21B49/005 , C09K8/035 , G01N21/64 , G01N33/2835 , Y10T436/173845
摘要： The invention concerns a method for determining the presence and quantity of an amine-based additive in fluids, particularly aqueous fluids used in hydrocarbon recovery such as drilling fluids, drill-in fluids, completion fluids, and the like. It was discovered that, after isolating the amine-based additive, the amount of clay stabilizer is linearly dependent upon the spectrometric count of its peak fluorescent spectrum. The method is reproducible and is not bothered by the presence of lignosulfonate and/or lignite which interferes with conventional methods.
摘要翻译： 本发明涉及一种用于确定流体中的胺类添加剂的存在和量的方法，特别是用于烃回收的含水流体，例如钻井液，钻入流体，完井液等。 已经发现，在分离出胺基添加剂之后，粘土稳定剂的量线性地取决于其峰值荧光光谱的光谱计数。 该方法是可再现的，并且不会受到干扰常规方法的木质素磺酸盐和/或褐煤的存在的困扰。
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公开(公告)号：US5141920A
公开(公告)日：1992-08-25
申请号：US771767
申请日：1991-10-04
申请人： Ronald G. Bland , Dennis K. Clapper
发明人： Ronald G. Bland , Dennis K. Clapper
摘要： Brine-in-glycol emulsions are shown for use as well working fluids. The fluids have a glycol external phase and a brine internal phase. The separate phases are emulsified to create an emulsion and weighted with traditional weighting agents. The external phase is soluble or dispersible in sea water when diluted upon discharge.
摘要翻译： 盐酸二醇乳液显示用作工作流体。 流体具有乙二醇外部相和盐水内部相。 乳化分离相以产生乳液并用传统的加重剂加权。 排出时稀释后，外相可溶于海水或分散。
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28.发明授权Filtration control additive for invert emulsion drilling fluids and method of preparation 失效反相乳液钻井液过滤控制添加剂及其制备方法
公开(公告)号：US4735732A
公开(公告)日：1988-04-05
申请号：US798965
申请日：1985-11-18
CPC分类号： C09K8/32 , C09K8/36 , Y10S507/904 , Y10S507/925
摘要： The present invention relates to a filtration control additive for use in invert emulsion drilling fluids; the method of preparing such additives; the invert emulsion drilling fluid produced therefrom; and a method of drilling, completing, and working over a subterranean well, utilizing such drilling fluid containing the filtration control additive which is utilized in a water-in-oil, emulsion-type subterranean drilling fluid. The additive comprises the pyrolyzed product obtained by intermixing and heating a finely divided humic acid-containing material and a primary amine having an alkyl radical of 10 to 20 carbon atoms or a primary amine having one alkyl-substituted phenyl radical, the alkyl radical having 10 to 20 carbon atoms. The amine may also be a secondary amine having at least one alkyl radical of 8 to 20 carbon atoms.
摘要翻译： 本发明涉及一种用于倒转乳液钻井液的过滤控制添加剂; 制备这些添加剂的方法; 由其生产的倒液乳液钻井液; 以及利用这种在油包水型乳液型地下钻井液中使用的含有过滤控制添加剂的钻井液进行钻井，完井和在地下井上工作的方法。 添加剂包括通过混合和加热细碎的腐殖酸材料和具有10-20个碳原子的烷基的伯胺或具有一个烷基取代的苯基的伯胺而获得的热解产物，该烷基具有10个 至20个碳原子。 胺还可以是具有至少一个具有8至20个碳原子的烷基的仲胺。
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