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公开(公告)号：US07250390B2
公开(公告)日：2007-07-31
申请号：US11008008
申请日：2004-12-09
申请人： Arvind D. Patel , Emanuel Stamatakis , Eric Davis , Jim Friedheim
发明人： Arvind D. Patel , Emanuel Stamatakis , Eric Davis , Jim Friedheim
IPC分类号： C09K8/04
CPC分类号： C09K8/22 , C09K8/24 , C09K2208/12
摘要： A water-base fluid for use in drilling wells and other drilling operation includes a shale clay which swells in the presence of water. The fluid preferably includes: an aqueous based continuous phase, and a shale hydration inhibition agent having the formula: H—(OR)x—[—NH—CH2—CH2—CH2—O—CH2—CH2—NH—]—(R′O)y—H wherein R and R′ are independently selectable alkylene groups having 2 to 4 carbon atoms, and wherein x and y have independently selected values such that the sum of x and y is at least 1. The shale hydration inhibition agent should be present in sufficient concentration to reduce the swelling of the shale clay. The fluid may be used for formulating drilling fluids such as water-base drilling muds or clear brine drilling fluids. The fluid may also be used in the slurrification and disposal of drill cuttings that contain water swellable clays or shale clays.
摘要翻译： 用于钻井和其他钻井操作的水基流体包括在水存在下膨胀的页岩粘土。 流体优选包括：基于水的连续相和具有下式的页岩水合抑制剂：<？in-line-formula description =“In-line Formulas”end =“lead”？> H（OR） - - - - - - - - - - - CH 2 -CH 2 CH 2 -CH 2 CH 2 - -N 2 - （R'O） - - - - （R'O）y -H-α-in-line-formula description =“In-line Formulas”end =“ 尾“→其中R和R'独立地是可选择的具有2至4个碳原子的亚烷基，并且其中x和y具有独立选择的值，使得x和y之和至少为1.页岩水化抑制剂应为 以足够的浓度存在，以减少页岩粘土的膨胀。 流体可以用于配制钻井液，例如水基钻井泥浆或透明盐水钻井液。 该流体也可用于含有可溶胀的粘土或页岩粘土的钻屑的脱气和处理。
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公开(公告)号：US06484821B1
公开(公告)日：2002-11-26
申请号：US09709962
申请日：2000-11-10
申请人： Arvind D. Patel , Emanuel Stamatakis , Eric Davis
发明人： Arvind D. Patel , Emanuel Stamatakis , Eric Davis
IPC分类号： C09K702
CPC分类号： C09K8/22 , C09K8/206 , C09K8/24 , C09K2208/12 , Y10S507/905
摘要： A water-base drilling fluid for use in drilling wells through a formation containing a shale which swells in the presence of water. The drilling fluid preferably includes: an aqueous based continuous phase, a weight material, and a shale hydration inhibition agent having the formula: H2N—R—{OR′}x—Y in which R and R′ are alkylene groups having 1 to 6 carbon atoms and x is a value from about 1 to about 25. The Y group should be an amine or alkoxy group, preferably a primary amine or a methoxy group. The shale hydration inhibition agent should be present in sufficient concentration to reduce the swelling of the shale. Also inclusive of the present invention is a method of reducing the swelling of shale clay encountered during the drilling of a subterranean well, the method comprising circulating in the well a water-base drilling fluid formulated in accordance with the present invention.
摘要翻译： 一种用于钻井的水基钻井液，通过含有在水存在下膨胀的页岩的地层。 钻井液优选包括：基于水的连续相，重量材料和具有下式的页岩水合抑制剂：其中R和R'是具有1至6个碳原子的亚烷基，x是约1至 约25.Y基应为胺或烷氧基，优选伯胺或甲氧基。 页岩水化抑制剂应以足够的浓度存在，以减少页岩的膨胀。 还包括本发明的是减少在钻井期间遇到的页岩粘土膨胀的方法，所述方法包括在井中循环根据本发明配制的水基钻井液。
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公开(公告)号：US6029755A
公开(公告)日：2000-02-29
申请号：US21013
申请日：1998-02-09
申请人： Arvind D. Patel
发明人： Arvind D. Patel
摘要： A conductive fluid has been formulated for use in a method of electrically logging subterranean wells. The conductive fluid includes a miscible combination of an oleaginous fluid, a water soluble alcohol, and an electrolytic salt. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The medium may further include gelling agent, weight material, surfactant, or corrosion inhibitors. The oleaginous fluid may preferably be a preferentially-oil-soluble glycol alone or in combination with mineral oil, vegetable oil, synthetic oil, silicone oil or combinations and mixtures of these. The alcohol may preferably be a water soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol and the like. The electrolytic salt or brine may be an inorganic or organic salt, examples of which include sodium chloride, sodium bromide, potassium chloride, ammonium chloride, magnesium chloride, calcium chloride, calcium bromide, sodium acetate, potassium acetate, sodium citrate, or combinations thereof.
摘要翻译： 导电流体已被配制用于电气测井地下井的方法。 导电流体包括油性流体，水溶性醇和电解盐的可混合组合。 盐的电解盐或盐水的存在浓度足以允许对地下井进行电测井。 介质还可以包括胶凝剂，重量材料，表面活性剂或腐蚀抑制剂。 含油流体可优选单独或与矿物油，植物油，合成油，硅油或它们的混合物组合的优先油溶性二醇。 醇可优选为水溶性二醇或二醇醚，例如乙二醇，二甘醇，丙二醇等。 电解盐或盐水可以是无机或有机盐，其实例包括氯化钠，溴化钠，氯化钾，氯化铵，氯化镁，氯化钙，溴化钙，乙酸钠，乙酸钾，柠檬酸钠或其组合 。
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公开(公告)号：US5990050A
公开(公告)日：1999-11-23
申请号：US13454
申请日：1998-01-26
申请人： Arvind D. Patel
发明人： Arvind D. Patel
CPC分类号： G01V3/20 , C09K8/32 , C09K2208/18 , Y10S507/939
摘要： A drilling fluid and an invert emulsion fluid having utility for drilling, completing or working over subterranean oil and gas wells are disclosed. The drilling fluid includes a continuous phase that includes a preferentially-oil-soluble glycol ether which has a viscosity at 25.degree. C. of at least 10 centipoise, and an emulsifier. The invert emulsion fluid includes a oleaginous fluid including a preferentially-oil-soluble glycol ether which is miscible in oil and is such that less than 10% by volume of the glycol ether is miscible in fresh water at 20.degree. C., that is to say 10% by volume of the glycol ether mixed in fresh water results in two phases. The invert emulsion fluid also includes a nonoleaginous fluid and an emulsifier which is functionally effective to stabilize the invert emulsion. In one embodiment, glycol ether is selected from propylene glycol n-butyl ether; dipropylene glycol n-butyl ether; tripropylene glycol n-butyl ether; tetra propylene glycol n-butyl ether; pentapropylene glycol n-butyl ether; hexapropylene glycol n-butyl ether; heptapropylene glycol n-butyl ether and combinations thereof. The fluids of the present invention may also contain weighting agents, bridging agents, wetting agents, corrosion inhibitors and other components of drilling fluids that are known in the art.
摘要翻译： 公开了一种用于钻井，完井或在地下油气井上工作的钻井液和反相乳液。 钻井液包括连续相，其包括在25℃下具有至少10厘泊的粘度的优先油溶性的二醇醚和乳化剂。 反相乳液包括含油优选油溶性二醇醚的含油流体，其可在油中混溶，并且使得少于10体积％的二醇醚可在20℃的淡水中混溶，即 例如，在淡水中混合的乙二醇醚的体积为10体积分数为两相。 反相乳液还包括非挥发性流体和在功能上有效稳定反相乳液的乳化剂。 在一个实施方案中，二醇醚选自丙二醇正丁基醚; 二丙二醇正丁醚; 三丙二醇正丁醚; 四丙二醇正丁基醚; 五丙二醇正丁醚; 六丙二醇正丁醚; 七丙二醇正丁基醚及其组合。 本发明的流体还可以含有本领域已知的加重剂，桥连剂，润湿剂，腐蚀抑制剂和钻井液的其它组分。
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公开(公告)号：US5985800A
公开(公告)日：1999-11-16
申请号：US43868
申请日：1998-03-20
申请人： Arvind D. Patel
发明人： Arvind D. Patel
CPC分类号： C09K8/32 , C09K8/36 , C09K8/52 , E21B21/068 , Y10S507/921 , Y10S507/933
摘要： New drilling fluids have been invented which are invert emulsion fluids comprising an oleaginous liquid, a non-oleaginous liquid, and a protonated amine. Such fluids are acidic and thus useful in drilling wells in which acidic gases such as CO.sub.2 or H.sub.2 S are likely to be encountered and break, i.e. de-emulsify, the drilling fluid.
摘要翻译： PCT No.PCT / US97 / 13883 Sec。 371日期：1998年3月20日 102（e）1998年3月20日PCT PCT 1997年8月1日PCT公布。 出版物WO98 / 05735 日期1998年2月12日发明了新的钻井液，它们是包含含油液体，非油质液体和质子化胺的反相乳液。 这样的流体是酸性的，因此可用于钻井中，其中可能遇到诸如CO 2或H 2 S的酸性气体并且使钻井液破裂，即脱乳化。
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公开(公告)号：US5888944A
公开(公告)日：1999-03-30
申请号：US880266
申请日：1997-06-23
申请人： Arvind D. Patel
发明人： Arvind D. Patel
CPC分类号： C09K8/32 , C09K8/36 , C09K8/52 , E21B21/068 , C09K2208/18
摘要： A method of removing the filter cake formed from invert emulsion compositions including an oleaginous, a non-oleaginous and an acid sensitive surfactant in an oil and gas well are disclosed. The acid sensitive surfactant is selected so that the invert emulsion can be broken and residual filter cake solids made water-wet upon the addition of an acidic wash fluid to the well.
摘要翻译： 公开了一种在油气井中除去由包含油性，非油性和酸敏感性表面活性剂的反相乳液组合物形成的滤饼的方法。 选择酸敏感性表面活性剂，使得可以破坏反相乳液，并且在将酸性洗涤液添加到孔中时，残留的滤饼固体变湿水。
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公开(公告)号：USH1611H
公开(公告)日：1996-11-05
申请号：US147743
申请日：1993-11-04
申请人： Arvind D. Patel
发明人： Arvind D. Patel
CPC分类号： C09K8/34
摘要： An emulsion and emulsion drilling fluid are disclosed. The emulsion has utility as an oil based drilling fluid comprising a glycol emulsified in a synthetic hydrocarbon material. The synthetic hydrocarbon material has an average molecular weight of from about 120 to 1,000 and is synthesized from one or more olefinic monomers having a chain length of C.sub.2 to C.sub.14.
摘要翻译： 公开了一种乳液和乳液钻井液。 该乳液作为含有在合成烃材料中乳化的二醇的油基钻井液具有效用。 合成烃材料的平均分子量为约120-1,000，由一个或多个链长C2至C14的烯属单体合成。
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公开(公告)号：US5189012A
公开(公告)日：1993-02-23
申请号：US535110
申请日：1990-06-08
CPC分类号： C09K8/36 , C09K8/28 , C09K8/34 , C09K2208/02 , Y10S507/905
摘要： The present invention relates to an improved continuous phase for an oil based drilling fluid and specifically a synthetic hydrocarbon continuous phase which is non-polluting and minimally toxic. The invention provides excellent drilling fluid properties under a wide variety of drilling conditions. The synthetic hydrocarbons are selected from the group consisting of branched chain oligomers synthesized from one or more olefins containing a C.sub.2 to C.sub.14 chain length and wherein the oligomers have an average molecular weight of from 120 to 1000. In the drilling fluid compositions, suitable emulsifiers, wetting agents, viscosifiers, weight materials and fluid loss additives are utilized in conjunction with water and/or a brine phase for the desired rheological properties.
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公开(公告)号：US4713183A
公开(公告)日：1987-12-15
申请号：US838975
申请日：1986-03-12
CPC分类号： C09K8/32
摘要： On occasion, during drilling operations employing oil base drilling muds, conditions occur that cause the surface of the solid materials in the mud to be water wet, changing the rheology of the drilling mud such that it is unusable and has to be discarded. In accordance with this invention, a novel method is provided to reverse this condition so that the water wet surfaces of the solid particles become oil wet again, restoring the drilling mud to substantially its original condition or level or to such a condition that it can continue to be used in drilling operations. This is accomplished by adding to the drilling mud containing water wet particles at least one of a specific and critical group of imidazolines.The imidazolines may be added to stable oil mud drilling fluids to decrease possible water wetting of the particle surfaces therein.
摘要翻译： 有时，在使用油基钻井泥浆的钻井作业中，会发生使泥浆中的固体物质的表面变湿的情况，改变钻井泥浆的流变性，使其不可用并且必须被丢弃。 根据本发明，提供了一种新的方法来逆转这种情况，使得固体颗粒的水湿表面再次变成油，将钻井泥浆恢复到基本上其原始状态或水平，或恢复到可以继续的状态 用于钻井作业。 这是通过向含有特定和关键的咪唑啉族组中的至少一种的水湿颗粒添加钻井泥浆来实现的。 可以将咪唑啉加入到稳定的油泥钻井液中以减少其中颗粒表面的可能的水润湿。
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50.发明授权公开(公告)号：US09004167B2
公开(公告)日：2015-04-14
申请号：US13053990
申请日：2011-03-22
申请人： Mark Luyster , Arvind D. Patel , Sooi Kim Lim
发明人： Mark Luyster , Arvind D. Patel , Sooi Kim Lim
CPC分类号： C09K8/52 , C09K8/36 , E21B7/00 , E21B21/00 , E21B43/04 , E21B43/08 , E21B43/088 , Y10S507/925
摘要： In a method of gravel packing a wellbore in a subterranean formation, the wellbore comprising a cased section and an uncased section, the method may include pumping into the wellbore a gravel pack composition comprising gravel and a carrier fluid comprising an invert emulsion fluid, where the invert emulsion fluid may comprise: an oleaginous external phase; a non-oleaginous internal phase, wherein a ratio of the oleaginous external phase and non-oleaginous internal phase is less than 50:50 and an emulsifier stabilizing the oleaginous external phase and the non-oleaginous internal phase.
摘要翻译： 在地层中的井筒填充井眼的方法中，井眼包括套管部分和未套管的部分，该方法可包括将包括砾石的砾石组合物和包含反相乳液的载体流体泵入井眼，其中 反相乳液可以包括：油性外相; 非油质内相，其中油质外相和非油质内相的比例小于50:50，并且乳化剂稳定油质外相和非油质内相。
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