公开(公告)号：US20070082823A1

公开(公告)日：2007-04-12

申请号：US10570562

申请日：2004-09-01

申请人： Arvind Patel ,  Emanuel Stamatakis ,  Steven Young

发明人： Arvind Patel ,  Emanuel Stamatakis ,  Steven Young

IPC分类号： C09K8/04

CPC分类号： C09K8/24 ,  C09K2208/12

摘要： A water based drilling fluid for use in drilling a subterranean well through a subterranean formation that swells in the presence of water, the drilling fluid is formulated to include: an aqueous based continuous phase; a weight material; an optional shale hydration inhibition agent and a shale encapsulator. The shale encapsulator is preferably a quaternized polyvinyl alcohol having the formula (I) in which x and y have a value so that the molecular weight of the cation is in the range of about 10,000 to about 200,000 AMU; A is selected from C1-C6 alkyl, C2-C6 ether or C2-C6 amide; R, R′ and R″ are independently selectable C1-C3 alkyl; and B is a charge balancing anion to the quarternary amine. The shale hydration inhibition agent and the shale encapsulator may be present in sufficient concentrations to reduce the swelling of the subterranean formation in the presence of water. Conventional additives may be included into the formulation of the drilling fluid, such conventional additives may include: fluid loss control agents, alkaline reserve and other pH control agents, bridging agents, lubricants, anti-bit balling agents, corrosion inhibition agents, surfactants and solids suspending agents as well as mixtures and combination of these and similar compounds that should be known to one of skill in the art.

摘要翻译： 一种水基钻井液，用于通过在水存在下膨胀的地下地层钻探地下井，将钻井液配制为包括：基于水的连续相; 重物料; 可选的页岩水化抑制剂和页岩封隔器。 页岩封装剂优选为具有式（I）的季铵化聚乙烯醇，其中x和y具有使阳离子的分子量在约10,000至约200,000AMU范围内的值; A选自C 1 -C 6烷基，C 2 -C 6 - 醚或C 1 -C 6烷基，C 2 -C 6 - C 2 -C 6酰胺; R，R'和R“独立地选自C 1 -C 3烷基; 而B是与季胺的电荷平衡阴离子。 页岩水化抑制剂和页岩封壳剂可以以足够的浓度存在，以在水的存在下减少地层的溶胀。 常规的添加剂可以包括在钻井液的配方中，这种常规的添加剂可以包括：流体损失控制剂，碱性储备和其它pH控制剂，桥联剂，润滑剂，抗磨损球剂，腐蚀抑制剂，表面活性剂和固体 悬浮剂以及这些和本领域技术人员已知的类似化合物的混合物和组合。

公开(公告)号：US20050054540A1

公开(公告)日：2005-03-10

申请号：US10937127

申请日：2004-09-09

申请人： Arvind Patel ,  Eric Davis ,  Steven Young ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Eric Davis ,  Steven Young ,  Emanuel Stamatakis

IPC分类号： C09K8/04 ,  E21B20060101 ,  C09K7/02

CPC分类号： C09K8/18 ,  C09K8/06 ,  C09K2208/34 ,  C10M2223/10

摘要： A method of improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent. The method involves the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compared to the fluid absent the phospholipids. Preferably the phospholipids have the structure: in which R and R′ are C6 to C25 hydrocarbon groups; and A is an anion to counter the cationic charge.

摘要翻译： 一种提高由含水基础液体和加重剂组成的含水基钻井液的润滑性的方法。 与没有磷脂的流体相比，该方法包括加入有效量的磷脂以显着降低摩擦系数。 优选地，磷脂具有以下结构：其中R和R'是C 6至C 25烃基; 而A是抵抗阳离子电荷的阴离子。

公开(公告)号：US07211549B2

公开(公告)日：2007-05-01

申请号：US11111029

申请日：2005-04-21

申请人： Arvind Patel ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Emanuel Stamatakis

IPC分类号： C09K8/00 ,  E21B31/00

CPC分类号： C09K8/32 ,  C09K2208/02 ,  Y10S507/94

摘要： A method for releasing a stuck drill string in the borehole of an underground formation employing an non-aqueous drilling fluid, the illustrative method including contacting the stuck drill string with a non-emulsion based, homogeneous additive composition effective in reducing the annular pressure exerted by the drilling fluid or mud cake against the stuck drill string and releasing the stuck drill string, the additive composition formulated to include a mutual solvent and a viscosifying agent. In one illustrative embodiment the mutual solvent is a C2 to C22 glycol or a C2 to C22 glycol ether or mixtures or combinations of these and similar compounds known to one of skill in the art. Alternatively and preferably, the mutual solvent may be selected from the group consisting of: diethylene glycol, propoxy propanol, butyl cellosolve, butyl carbitol and mixtures or combinations of these and similar compounds known to one of skill in the art. A further illustrative embodiment includes a solid weighting agent, preferably the solid weighting agent is selected from the group galena, hematite, magnetite, iron oxides, illmenite, barite, siderite, celestite, dolomite, calcite, and mixtures or combinations of these and similar compounds known to one of skill in the art.

摘要翻译： 一种使用非水性钻井液将地下地层钻孔中的卡住钻柱释放的方法，所述方法包括将所述卡住的钻柱与基于非乳液的均匀的添加剂组合物接触，所述添加剂组合物有效地降低了由 所述钻井液或泥饼抵靠所述卡住的钻柱并释放所述卡住的钻柱，所述添加剂组合物配制成包括相互溶剂和增粘剂。 在一个说明性实施方案中，相互溶剂是C 2至C 22二醇或C 2至C 22二醇醚或这些的混合物或组合以及本领域技术人员已知的类似化合物。 或者优选地，互溶剂可以选自：二甘醇，丙氧基丙醇，丁基溶纤剂，丁基卡必醇以及这些的混合物或组合以及本领域技术人员已知的类似化合物。 另一个说明性的实施方案包括固体加重剂，优选地，固体加权剂选自方铅矿，赤铁矿，磁铁矿，铁氧化物，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混合物或组合 本领域技术人员已知的。

公开(公告)号：US20060073985A1

公开(公告)日：2006-04-06

申请号：US11123396

申请日：2005-05-06

申请人： Arvind Patel ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Emanuel Stamatakis

IPC分类号： C09K8/22 ,  C09K8/04

CPC分类号： C09K8/22 ,  C09K8/20 ,  C09K8/24 ,  C09K8/68 ,  C09K2208/12

摘要： A method of using a water-base wellbore fluid in subterranean wells that penetrate through a subterranean formation containing a shale which swells in the presence of water. The well bore fluid includes, an aqueous based continuous phase, and a shale hydration inhibition agent. One illustrative shale hydration inhibition agent is preferably the reaction product of a hydrogenation reaction of the product of the reaction of an aromatic amine with an aldehyde, preferably formaldehyde. Alternatively the shale hydration inhibition agent may be the reaction product of a hydrogenation reaction of the product of the reaction of aniline and formaldehyde. In one illustrative embodiment, the shale hydration inhibition agent is selected from the class of compounds known as polycycloaliphatic amines. Further the shale hydration inhibition agent may be present in the form of a free-base or in the form of an acid salt of the disclosed amine compounds. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the fluid.

公开(公告)号：US20080076681A1

公开(公告)日：2008-03-27

申请号：US11936570

申请日：2007-11-07

申请人： Arvind Patel ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Emanuel Stamatakis

IPC分类号： C09K8/04

CPC分类号： C09K8/22 ,  C09K8/20 ,  C09K8/24 ,  C09K8/68 ,  C09K2208/12

摘要： A water-base fluid for use in drilling, cementing, workover, fracturing and abandonment of subterranean wells through a formation containing shale which swells in the presence of water. In one illustrative embodiment, the drilling fluid is composed of an aqueous based continuos phase, a weighting agent, and a shale hydration inhibition agent. The shale hydration inhibition agent should have the general formula: in which R and R′ independently selected from hydrogen, methyl, ethyl or propyl, and X has a value from 1 to 6. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the drilling fluid. The drilling fluid may be formulated to include a wide variety of components of aqueous based drilling fluids, such as weighting agents, fluid loss control agents, suspending agents, viscosifying agents, rheology control agents, as well as other compounds and materials known to one of skill in the art. The fluids may also be used in fracturing and the disposal by reinjection of drilling cutting into a selected subterranean disposal formation.

摘要翻译： 一种用于钻井，固井，修井，压裂和放弃地下井的水基流体，通过含有在水存在下膨胀的页岩的地层。 在一个说明性实施例中，钻井流体由水基连续相，加重剂和页岩水化抑制剂组成。 页岩水化抑制剂应具有以下通式：其中R和R'独立地选自氢，甲基，乙基或丙基，X具有1至6的值。页岩水化抑制剂以足够的浓度存在于基本上 在与钻井液接触时减少页岩钻屑的膨胀。 钻井液可以被配制成包括水基钻井液的各种各样的组分，例如加重剂，流体损失控制剂，悬浮剂，增粘剂，流变控制剂，以及其它化合物和材料 艺术技能 流体也可以用于压裂和通过将钻削切割注入到选定的地下处理层中来进行处理。

公开(公告)号：US20060073983A1

公开(公告)日：2006-04-06

申请号：US11123394

申请日：2005-05-06

申请人： Arvind Patel ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Emanuel Stamatakis

IPC分类号： C09K8/22 ,  C09K8/04

CPC分类号： C09K8/22 ,  C09K8/20 ,  C09K8/24 ,  C09K8/68 ,  C09K2208/12

摘要： A water-base wellbore fluid for use in subterranean wells that penetrate through a subterranean formation containing a shale which swells in the presence of water. The well bore fluid includes, an aqueous based continuous phase, and a shale hydration inhibition agent. One illustrative shale hydration inhibition agent is preferably the reaction product of a hydrogenation reaction of the product of the reaction of an aromatic amine with an aldehyde, preferably formaldehyde. Alternatively the shale hydration inhibition agent may be the reaction product of a hydrogenation reaction of the product of the reaction of aniline and formaldehyde. In one illustrative embodiment, the shale hydration inhibition agent is selected from the class of compounds known as polycycloaliphatic amines. The shale hydration inhibition agent may be present in the form of a free-base or preferably in the form of an acid salt of the disclosed amine compounds. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the fluid.

公开(公告)号：US20070129258A1

公开(公告)日：2007-06-07

申请号：US11672847

申请日：2007-02-08

申请人： Arvind Patel ,  Emanuel Stamatakis ,  Steve Young

发明人： Arvind Patel ,  Emanuel Stamatakis ,  Steve Young

IPC分类号： C09K8/00 ,  E21B43/00

CPC分类号： C09K8/24 ,  C09K2208/12

摘要： A water based drilling fluid for use in drilling a subterranean well through a subterranean formation that swells in the presence of water, the drilling fluid is formulated to include: an aqueous based continuous phase; a weight material; an optional shale hydration inhibition agent and a shale encapsulator. The shale encapsulator has the formula: in which x and y have a value so that the molecular weight of the cation is in the range of about 10,000 to about 200,000 AMU; A is selected from C1-C6 alkyl, C2-C6 ether or C2-C6 amide; R, R′ and R″ are independently selectable C1-C3 alkyl; and B− is a charge balancing anion to the quarternary amine. The shale hydration inhibition agent and the shale encapsulator may be present in sufficient concentrations to reduce the swelling of the subterranean formation in the presence of water. Conventional additives may be included into the formulation of the drilling fluid, such conventional additives may include: fluid loss control agents, alkaline reserve and other pH control agents, bridging agents, lubricants, anti-bit balling agents, corrosion inhibition agents, surfactants and solids suspending agents as well as mixtures and combination of these and similar compounds that should be known to one of skill in the art.

摘要翻译： 一种水基钻井液，用于通过在水存在下膨胀的地下地层钻探地下井，将钻井液配制为包括：基于水的连续相; 重物料; 可选的页岩水化抑制剂和页岩封隔器。 页岩封装剂具有下式：其中x和y具有使阳离子的分子量在约10,000至约200,000AMU范围内的值; A选自C 1 -C 6烷基，C 2 -C 6 - 醚或C 1 -C 6烷基，C 2 -C 6 - C 2 -C 6酰胺; R，R'和R“独立地选自C 1 -C 3烷基; 并且B 是与季胺的电荷平衡阴离子。 页岩水化抑制剂和页岩封壳剂可以以足够的浓度存在，以在水的存在下减少地层的溶胀。 常规的添加剂可以包括在钻井液的配方中，这种常规的添加剂可以包括：流体损失控制剂，碱性储备和其它pH控制剂，桥联剂，润滑剂，抗磨损球剂，腐蚀抑制剂，表面活性剂和固体 悬浮剂以及这些和本领域技术人员已知的类似化合物的混合物和组合。

公开(公告)号：US20060073984A1

公开(公告)日：2006-04-06

申请号：US11123395

申请日：2005-05-06

申请人： Arvind Patel ,  Emanuel Stamatakis

发明人： Arvind Patel ,  Emanuel Stamatakis

IPC分类号： C09K8/04 ,  E21B43/00

CPC分类号： C09K8/22 ,  C09K8/20 ,  C09K8/24 ,  C09K8/68 ,  C09K2208/12

摘要： A water-base wellbore fluid for use in subterranean wells that penetrate through a subterranean formation containing a shale which swells in the presence of water. The well bore fluid includes, an aqueous based continuous phase, and a shale hydration inhibition agent. One illustrative shale hydration inhibition agent is preferably the reaction product of a hydrogenation reaction of the product of the reaction of an aromatic amine with an aldehyde, preferably formaldehyde. Alternatively the shale hydration inhibition agent may be the reaction product of a hydrogenation reaction of the product of the reaction of aniline and formaldehyde. In one illustrative embodiment, the shale hydration inhibition agent is selected from the class of compounds known as polycycloaliphatic amines. The shale hydration inhibition agent is present in sufficient concentration to substantially reduce the swelling of shale drilling cuttings upon contact with the fluid.

公开(公告)号：US20050096232A1

公开(公告)日：2005-05-05

申请号：US11008008

申请日：2004-12-09

申请人： Arvind Patel ,  Emanuel Stamatakis ,  Eric Davis ,  Jim Friedheim

发明人： Arvind Patel ,  Emanuel Stamatakis ,  Eric Davis ,  Jim Friedheim

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

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。}

公开(公告)号：US20050049149A1

公开(公告)日：2005-03-03

申请号：US10654505

申请日：2003-09-03

申请人： Arvind Patel ,  Emanuel Stamatakis ,  Steve Young

发明人： Arvind Patel ,  Emanuel Stamatakis ,  Steve Young

IPC分类号： C09K8/24 ,  C09K7/02

CPC分类号： C09K8/24 ,  C09K2208/12

摘要： A water based drilling fluid for use in drilling a subterranean well through a subterranean formation that swells in the presence of water, the drilling fluid is formulated to include: an aqueous based continuous phase; a weight material; an optional shale hydration inhibition agent and a shale encapsulator. The shale encapsulator has the formula: in which x and y have a value so that the molecular weight of the cation is in the range of about 10,000 to about 200,000 AMU; A is selected from C1-C6 alkyl, C2-C6 ether or C2-C6 amide; R, R′ and R″ are independently selectable C1-C3 alkyl; and B− is a charge balancing anion to the quarternary amine. The shale hydration inhibition agent and the shale encapsulator may be present in sufficient concentrations to reduce the swelling of the subterranean formation in the presence of water. Conventional additives may be included into the formulation of the drilling fluid, such conventional additives may include: fluid loss control agents, alkaline reserve and other pH control agents, bridging agents, lubricants, anti-bit balling agents, corrosion inhibition agents, surfactants and solids suspending agents as well as mixtures and combination of these and similar compounds that should be known to one of skill in the art.

摘要翻译： 一种水基钻井液，用于通过在水存在下膨胀的地下地层钻探地下井，将钻井液配制为包括：基于水的连续相; 重物料; 可选的页岩水化抑制剂和页岩封隔器。 页岩封装剂具有下式：其中x和y具有使阳离子的分子量在约10,000至约200,000AMU范围内的值; A选自C 1 -C 6烷基，C 2 -C 6醚或C 2 -C 6酰胺; R，R'和R“独立地选自C 1 -C 3烷基; 而B - 是与季胺的电荷平衡阴离子。 页岩水化抑制剂和页岩封壳剂可以以足够的浓度存在，以在水的存在下减少地层的溶胀。 常规的添加剂可以包括在钻井液的配方中，这种常规的添加剂可以包括：流体损失控制剂，碱性储备和其它pH控制剂，桥联剂，润滑剂，抗磨损球剂，腐蚀抑制剂，表面活性剂和固体 悬浮剂以及这些和本领域技术人员已知的类似化合物的混合物和组合。