公开(公告)号：US07939473B2

公开(公告)日：2011-05-10

申请号：US12041364

申请日：2008-03-03

申请人： Arvind D. Patel

发明人： Arvind D. Patel

IPC分类号： C09K8/528

CPC分类号： C09K8/12 ,  C09K2208/12

摘要： A low toxicity composition and method of reducing the swelling of clay in well comprising circulating in the well a water-based fluid comprising a functionally effective concentration of the additive formed from the following reaction of a tertiary amine of the following general formula: wherein R1 and R2 are alkyl or hydroxyalkyl groups with one to three carbon atoms or combinations thereof, and R3 is a hydroxyalkyl group with one to three carbon atoms, with an alkylating agent of the following general formula: R-A wherein R is an alkyl radical with one to three carbon atoms, and A is an organic or inorganic anion selected from the group consisting of sulfate, phosphate, carbonate, and combinations thereof.

摘要翻译： 一种低毒组合物和减少井中粘土膨胀的方法，包括在井中循环的水基流体，其包含由以下通式的叔胺的以下反应形成的功能有效浓度的添加剂：其中R1和 R2是具有1至3个碳原子的烷基或羟烷基或其组合，并且R 3是具有1至3个碳原子的羟烷基，具有以下通式的烷基化剂：其中R是具有1至3个 碳原子，A是选自硫酸盐，磷酸盐，碳酸盐及其组合的有机或无机阴离子。

公开(公告)号：US07871962B2

公开(公告)日：2011-01-18

申请号：US10647737

申请日：2003-08-25

申请人： Arvind D. Patel ,  Jim Friedheim ,  John Lee ,  Burnham Hoxha

发明人： Arvind D. Patel ,  Jim Friedheim ,  John Lee ,  Burnham Hoxha

IPC分类号： C09K8/36 ,  C09K8/34

CPC分类号： C09K8/36 ,  C09K2208/18

摘要： A drilling fluid having an oleaginous fluid that forms the continuous phase; a non-oleaginous fluid, which is the discontinuous phase; a primary emulsifier in sufficient concentration to stabilize the invert emulsion; and a rheology modifier, which serves to moderate the rheology change across a temperature range of 40 to 150° C. The rheology modifier may be a dimer poly-carboxylic C12 to C22 fatty acid, trimer poly-carboxylic C12 to C22 fatty acid, tetramer poly-carboxylic C12 to C22 fatty acid, mixtures of these acids, or a polyamide wherein the polyamide is the condensation reaction product of a C12-C22 fatty acid and a polyamine selected from the group consisting of diethylenetriamine, triethylenetetramine; and pentaethylenetetramine. The drilling fluid preferably includes a weighting agent or bridging agent which may be selected from galena, hematite, magnetite, iron oxides, illmenite, barite, siderite, celestite, dolomite, calcite as well as combinations and mixtures of these and similar compounds. Optionally organophillic clay, fluid loss agents, alkali reserve materials, and other conventional invert emulsion drilling fluid components may be added to the drilling fluid.

摘要翻译： 具有形成连续相的含油流体的钻井液; 非油质流体，其是不连续相; 足够浓度的初级乳化剂以稳定反相乳液; 和流变改性剂，其用于在40至150℃的温度范围内调节流变学变化。流变改性剂可以是二聚体多羧酸C12至C22脂肪酸，三聚体多羧酸C12至C22脂肪酸，四聚体 聚羧酸C12至C22脂肪酸，这些酸的混合物或聚酰胺，其中聚酰胺是C12-C22脂肪酸和选自二亚乙基三胺，三亚乙基四胺的多胺的缩合反应产物; 和五亚乙基四胺。 钻井液优选包括可以选自方铅矿，赤铁矿，磁铁矿，氧化铁，镍铁矿，重晶石，菱铁矿，天青石，白云石，方解石以及这些和类似化合物的组合和混合物的加重剂或桥接剂。 任选地，有机物粘土，流体损失剂，碱储备材料和其它常规的反相乳液钻井液组分可以添加到钻井液中。

公开(公告)号：US07081437B2

公开(公告)日：2006-07-25

申请号：US10647829

申请日：2003-08-25

申请人： Arvind D. Patel ,  Jim Friedheim ,  John Candler ,  Stephen Rabke

发明人： Arvind D. Patel ,  Jim Friedheim ,  John Candler ,  Stephen Rabke

IPC分类号： C09K8/34

CPC分类号： C09K8/34

摘要： A method of formulating and the resulting biodegradable wellbore fluid includes a first synthetic internal olefin fraction having from 16 to 18 carbon atoms (C16-18 IO), a second synthetic internal olefin fraction having between 15 to 18 carbon atoms (C15-18 IO), and a third synthetic internal olefin fraction having 15 to 16 carbon atoms (C15-16 IO). The components of the wellbore fluid are blended such that the desired characteristics of polycyclic aromatic hydrocarbon content, toxicity and biodegrability are balance to achieve compliance with environmental requirements for hydrocarbon based drilling fluids. One such illustrative embodiment achieves this result by utilizing a formulation in which the first internal olefin fraction is present in a range of about 45 to about 55 percent by weight of the wellbore fluid and wherein the second internal olefin fraction is present in range of about 20 to about 30 percent by weight of the wellbore fluid and wherein the third olefin fraction is present in range of about 20 to about 30 percent by weight of the wellbore fluid. Optionally, the illustrative fluid can include a C16 alpha olefin (C16 AO). In such instances, the C16 alpha olefin (C16 AO) is present in the range of about 10 to about 20 percent by weight of the wellbore fluid.

摘要翻译： 配制方法和所得到的可生物降解的井筒流体包括具有16至18个碳原子（C 16-18 O 10）的第一合成内烯烃部分，具有15至18个碳原子的第二合成内烯烃部分 碳原子（C 15-18 O）和具有15至16个碳原子的第三合成内烯烃部分（C 15-16 I）。 将井眼流体的组分混合，使得多环芳烃含量，毒性和生物降解性的期望特征是平衡的，以达到符合烃基钻井液的环境要求。 一个这样的说明性实施例通过使用其中第一内部烯烃部分以约45至约55重量％的井眼流体​​的范围存在的配方实现该结果，并且其中第二内部烯烃部分以约20的范围存在 至约30重量％的井筒流体，并且其中第三烯烃馏分以井眼流体的约20重量％至约30重量％的范围存在。 任选地，说明性的流体可以包括C 16 C 17α-烯烃（C 16 C 40）。 在这种情况下，C 16 C 17α-烯烃（C 16 O 40）以井眼流体的约10至约20重量％的范围存在。

公开(公告)号：US06828279B2

公开(公告)日：2004-12-07

申请号：US09927619

申请日：2001-08-10

申请人： Arvind D. Patel ,  Burnhan Hoxha ,  Reginald Bell

发明人： Arvind D. Patel ,  Burnhan Hoxha ,  Reginald Bell

IPC分类号： C09K706

CPC分类号： C09K8/36

摘要： An invert emulsion drilling fluid includes an oleaginous continuous phase; a non-oleaginous discontinuous phase; a biodegradable surfactant including a di-fatty acid ester of triglycerol; and a weighting agent. It is preferred that the fatty acid have the formula RCO2H in which R is an alkyl or alkenyl having 10 to 20 carbon atoms. The oleaginous fluid is selected from diesel oil, mineral oil, synthetic oil, ester oils, glycerides of fatty acids, aliphatic esters, aliphatic ethers, aliphatic acetals, or other such hydrocarbons and combinations of these and similar compounds. The non-oleaginous phase is selected from fresh water, sea water, brine, aqueous solutions containing water soluble organic salts, water soluble alcohols or water soluble glycols or combinations of these and similar compounds. The weighting agent is any suitable weighting agent and is preferably selected from water insoluble weighting agents such as barite, calcite, mullite, gallena, manganese oxides, iron oxides, or combinations of these or water soluble weighting agents such as water soluble salts of zinc, iron, barium, calcium or combinations of these and similar compounds.

摘要翻译： 反相乳液钻井液包括油性连续相; 非油质不连续相; 包含三甘油二脂肪酸酯的生物可降解表面活性剂; 和加重剂。 优选脂肪酸具有式RCO 2 H，其中R是具有10至20个碳原子的烷基或链烯基。 含油流体选自柴油，矿物油，合成油，酯油，脂肪酸甘油酯，脂肪族酯，脂族醚，脂肪族缩醛或其它这些烃，以及这些和类似化合物的组合。 非油质相选自淡水，海水，盐水，含有水溶性有机盐的水溶液，水溶性醇或水溶性二醇或这些和类似化合物的组合。 加重剂是任何合适的加重剂，优选选自水不溶性加重剂，例如重晶石，方解石，莫来石，gallena，氧化锰，铁氧化物或这些的组合或水溶性增重剂，例如锌， 铁，钡，钙或这些和类似化合物的组合。

公开(公告)号：US06806233B2

公开(公告)日：2004-10-19

申请号：US09887138

申请日：2001-06-22

申请人： Arvind D. Patel

发明人： Arvind D. Patel

IPC分类号： C09K706

CPC分类号： C09K8/26 ,  C09K8/32 ,  C09K8/36 ,  C09K8/52 ,  C09K8/602 ,  C09K8/64 ,  C09K8/82 ,  C09K2208/18 ,  E21B21/068

摘要： Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil type emulsion to a oil-in-water type emulsion upon the protonation of the amine surfactant. Deprotonation of the amine surfactant reverses the conversion. This solution also permits the conversion of oil-wet solids in the fluid into water-wet solids.

摘要翻译： 公开了可用于油气井钻井技术的包含油质，非油性和胺表面活性剂的反相乳液组合物。 选择胺表面活性剂，使得在胺表面活性剂质子化时，反相乳液可以从油包水型乳液转化成水包油型乳液。 胺表面活性剂的去质子化反转转化。 该溶液还允许将流体中的油 - 湿固体转化成水湿固体。

公开(公告)号：US06793025B2

公开(公告)日：2004-09-21

申请号：US10172837

申请日：2002-06-17

申请人： Arvind D. Patel ,  Reginald J. Bell ,  Steve Young ,  Ahmadi Tehrani

发明人： Arvind D. Patel ,  Reginald J. Bell ,  Steve Young ,  Ahmadi Tehrani

IPC分类号： C09K706

CPC分类号： E21B17/003 ,  C09K8/32 ,  C09K2208/14 ,  E21B47/0006 ,  E21B47/12 ,  G01V3/20 ,  Y10S507/904

摘要： A method of electrically logging subterranean wells using a conductive double emulsion fluid includes a miscible combination of an oleaginous fluid, an emulsifier capable of forming a microemulsion, an emulsifier capable of forming an invert emulsion, and an electrolytic salt. A microemulsion is the continuous phase of an invert emulsion. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The fluid may additionally contain a polar organic solvent and a carbon dioxide buffer. The polar organic solvent may be an oil soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol, polypropylene glycol, and the like. The electrolytic salt preferably is a quaternary amine salt having the formula: wherein R is an alkyl having 8 to 18 carbon atoms, R′ is 2 to 6 carbon atoms alkyl group, B is hydrogen, oxyalkyl having 1 to 4 carbon atoms or alkyl having 1 to 4 carbon atoms, A is hydrogen or alkyl with 1 to 4 carbon atoms, x+y=1 to 15, z is 0 to 3, and M− is a counter anion; or combinations thereof. In such instances the quaternary amine salt serves both as the electrolyte and the microemulsifer. The carbon dioxide buffer is preferably a trialkylanol amine.

摘要翻译： 使用导电双乳液流体对地下井进行电测井的方法包括油性流体，能够形成微乳液的乳化剂，能够形成反相乳液的乳化剂和电解质盐的可混溶组合。 微乳液是反相乳液的连续相。 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。 流体可另外含有极性有机溶剂和二氧化碳缓冲液。 极性有机溶剂可以是油溶性二醇或二醇醚，例如乙二醇，二甘醇，丙二醇，聚丙二醇等。 电解盐优选是具有下式的季胺盐：其中R是具有8至18个碳原子的烷基，R'是2至6个碳原子的烷基，B是氢，具有1至4个碳原子的烷氧基或具有 1至4个碳原子，A为氢或具有1至4个碳原子的烷基，x + y = 1至15，z为0至3，M 1为抗衡阴离子; 或其组合。 在这种情况下，季胺盐既用作电解质又用作微乳剂。 二氧化碳缓冲液优选为三烷基醇胺。

公开(公告)号：US06790811B2

公开(公告)日：2004-09-14

申请号：US09770848

申请日：2001-01-26

申请人： Arvind D. Patel

发明人： Arvind D. Patel

IPC分类号： C09K706

CPC分类号： E21B21/068 ,  C09K8/32 ,  C09K8/36 ,  C09K8/52 ,  C09K2208/18 ,  Y10S507/925

摘要： Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil type emulsion to a oil-in-water type emulsion upon the protonation of the amine surfactant. Deprotonation of the amine surfactant reverses the conversion.

摘要翻译： 公开了可用于油气井钻井技术的包含油质，非油性和胺表面活性剂的反相乳液组合物。 选择胺表面活性剂，使得在胺表面活性剂质子化时，反相乳液可以从油包水型乳液转化成水包油型乳液。 胺表面活性剂的去质子化反转转化。

公开(公告)号：US5909779A

公开(公告)日：1999-06-08

申请号：US108025

申请日：1998-06-30

申请人： Arvind D. Patel ,  Jayanti S. Patel ,  Harris A Oehler

发明人： Arvind D. Patel ,  Jayanti S. Patel ,  Harris A Oehler

IPC分类号： C09K8/32 ,  E21B21/00 ,  C09K7/06 ,  E21B49/00

CPC分类号： C09K8/32 ,  Y10S507/91

摘要： An alkaline-reserve-free, oil-based drilling fluid is disclosed as comprising an oleaginous liquid, and an amine surfactant having the structure R-NH.sub.2, wherein R represents a C.sub.12 -C.sub.22 alkyl group or alkenyl group. Such fluid is particularly useful in the drilling of subterranean wells in which CO.sub.2, H.sub.2 S or other acidic gases which adversely effect the rheologies and other properties of the drilling fluid are encountered. The alkaline-reserve-free oil-based drilling fluid permits the logging of acidic gases which otherwise could not be logged in the presence of lime or other alkaline.

摘要翻译： 公开了一种无碱储备油基钻井液，其包含含油液体和具有结构R-NH 2的胺表面活性剂，其中R表示C12-C22烷基或烯基。 这种流体特别可用于钻井地下井，其中遇到不利地影响钻井液的流变学和其它性质的CO 2，H 2 S或其它酸性气体。 无碱储备的油基钻井液允许测量酸性气体，否则在石灰或其他碱性物质存在下不能记录。

公开(公告)号：US5639715A

公开(公告)日：1997-06-17

申请号：US217432

申请日：1994-03-24

申请人： Arvind D. Patel

发明人： Arvind D. Patel

IPC分类号： C09K8/06 ,  C09K8/22 ,  C09K7/00

CPC分类号： C09K8/22 ,  C09K8/06 ,  C09K2208/12

摘要： A water based drilling fluid which is environmentally non-toxic containing a sodium alkylsufosuccinate and well drilling additives, said sodium alkylsulfosuccinate is water dispersible and imparts anti-bit balling, lubricity and environmentally non-toxicity properties to said drilling fluid and does not precipitate in the presence of the said well drilling additives.

摘要翻译： 一种环境无毒的含有烷基磺基琥珀酸钠和钻井添加剂的水基钻井液，所述烷基磺基琥珀酸钠是水分散性的，并且对所述钻井液具有抗咬伤，润滑性和环境无毒性，并且不会沉淀在 所述钻井添加剂的存在。

公开(公告)号：US5350740A

公开(公告)日：1994-09-27

申请号：US59453

申请日：1993-05-07

申请人： Arvind D. Patel ,  Henry C. McLaurine

发明人： Arvind D. Patel ,  Henry C. McLaurine

IPC分类号： C09K8/18 ,  C09K8/22 ,  C09K8/24 ,  C09K7/02

CPC分类号： C09K8/18 ,  C09K8/22 ,  C09K8/24

摘要： This invention relates to drilling fluid additives that suppress clay swelling within a subterranean well and to methods for controlling clay swelling during the drilling of a subterranean well. A trihydroxy alkyl amine is reacted with an alkyl halide or a water soluble quaternary amine to form a quaternized trihydroxy alkyl amine. The reaction products can also include condensed reaction products of quaternized trihydroxy alkyl amines. The quaternized reaction products are characterized by low toxicity and compatibility with anionic drilling fluid components. The products are added to water base drilling fluids which are circulated throughout a well. The drilling fluid additives and the method of controlling clay swelling provide for improved control of the rheological properties of drilling fluids along with increased environmental and drilling fluid compatibility.

摘要翻译： 本发明涉及一种抑制地下井内粘土膨胀的钻井液添加剂以及在钻井期间控制粘土膨胀的方法。 使三羟基烷基胺与烷基卤化物或水溶性季胺反应形成季铵化的三羟基烷基胺。 反应产物还可以包括季铵化的三羟基烷基胺的缩合反应产物。 季铵化反应产物的特征在于低毒性和与阴离子钻井液组分的相容性。 产品被添加到在整个井中循环的水基钻井液中。 钻井液添加剂和控制粘土膨胀的方法提高了钻井液流变性能的控制，同时提高了环境和钻井液的相容性。