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51. 发明授权

US5244936A Enhanced oil recovery profile control with crosslinked anionic acrylamide copolymer gels 失效
标题翻译：用交联的阴离子丙烯酰胺共聚物凝胶增强采油曲线控制
公开(公告)号：US5244936A
公开(公告)日：1993-09-14
申请号：US753131
申请日：1991-08-30
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C08F8/00 , C08L33/26 , C08L61/00 , C09K8/512 , C09K8/88
CPC分类号： C09K8/887 , C08F8/00 , C08L33/26 , C09K8/512 , C08L61/00
摘要： An aqueous polymeric gel-forming composition capable of selectively plugging highly permeable zones in subterranean oil-bearing formations. The composition comprises an aqueous solution of an anionic acrylamide copolymer of high molecular weight, comprising about 5 to 95 weight percent of 2-acrylamido-2-methylpropanesulfonic acid, about 2 to 95 weight percent of N-vinyl-N-methyl acetamide and about 5 to 93 weight percent of acrylamide, and a crosslinking agent selected from the group consisting of transition metal ions, phenolic resins and amino resins. The compositions of this invention will form stable gels in brines of wide-ranging salinity and are effective at the pH levels encountered in carbon dioxide and water flooding operations. Also provided is a process for selectively plugging regions of higher permeability within an oil-bearing formation to improve sweep efficiency during a fluid flood oil recovery operation.
摘要翻译：一种含水聚合物凝胶形成组合物，其能够选择性地堵塞地下含油地层中的高渗透性区域。该组合物包含高分子量的阴离子丙烯酰胺共聚物的水溶液，其包含约5-95重量％的2-丙烯酰胺基-2-甲基丙磺酸，约2-95重量％的N-乙烯基-N-甲基乙酰胺和约 5〜93重量％的丙烯酰胺，以及选自过渡金属离子，酚醛树脂和氨基树脂的交联剂。本发明的组合物将在宽范围盐度的盐水中形成稳定的凝胶，并且在二氧化碳和水驱操作中遇到的pH水平是有效的。还提供了一种用于在含油地层内有选择地堵塞较高渗透率的区域的方法，以提高在流体淹油操作期间的扫掠效率。

52. 发明授权

US4993460A Sight glass incorporated into fuel dispensing nozzle 失效
标题翻译：视镜装入燃油分配喷嘴
公开(公告)号：US4993460A
公开(公告)日：1991-02-19
申请号：US497588
申请日：1990-03-22
申请人： Thomas L. Robinson , Thomas O. Mitchell , Fink, Sr. Arthur C.
发明人： Thomas L. Robinson , Thomas O. Mitchell , Fink, Sr. Arthur C.
IPC分类号： B67D7/42 , B67D7/56
CPC分类号： B67D7/42 , B67D7/56
摘要： A fuel dispensing nozzle incorporating sight glass in the vicinity of its poppet valve, which a sight glass is sealingly engaged within the body cap, comprising a lens of either the magnifying or nonmagnifying type, to provide a ready viewing of any activation device within the poppet cavity, either in the form of spinner, or spheres, that are rotated or agitated, as when fuel under pressure is being delivered through the nozzle and to the fuel tank of a vehicle.
摘要翻译：一种燃料分配喷嘴，其在其提升阀附近包括观察窗，观察窗密封地接合在主体盖内，包括放大或非放大型的透镜，以便提供在提升阀内的任何激活装置的准备观察当旋转或搅动时，当压力下的燃料正在通过喷嘴和车辆的燃料箱传送时，空腔以旋转器或球体的形式旋转或搅动。

53. 发明授权

US4981520A Oil reservoir permeability profile control with crosslinked welan gum biopolymers 失效
标题翻译：具有交联韦兰胶生物聚合物的油藏渗透性分布控制
公开(公告)号：US4981520A
公开(公告)日：1991-01-01
申请号：US283399
申请日：1988-12-12
申请人： Dennis H. Hoskin , Thomas O. Mitchell , Paul Shu
发明人： Dennis H. Hoskin , Thomas O. Mitchell , Paul Shu
IPC分类号： C09K8/08 , C09K8/514 , C09K8/90
CPC分类号： C09K8/905 , C09K8/08 , C09K8/514
摘要： A composition capable of selectively plugging highly permeable zones in a subterranean formation. The composition forms a gel subsequent to its injection into the formation via an injection well. The composition comprises an aqueous solution of a welan gum heteropolysaccharide biopolymer produced by the fermentation of a microorganism of the genus Alcaligenes, a phenolic compound, an aldehyde and water. The compositions of this invention will form stable gels even in low salinity brines. Also provided is a process for selectively plugging regions of higher permeability within an oil-bearing subterranean formation to improve sweep efficiency during a fluid flood oil recovery process using the gel-forming compositions of this invention.
摘要翻译：能够选择性地堵塞地层中高渗透性区域的组合物。组合物在通过注射井注入地层后形成凝胶。组合物包含通过发酵产碱杆菌属，酚类化合物，醛和水的微生物产生的韦兰胶杂多糖生物聚合物的水溶液。本发明的组合物即使在低盐度盐水中也能形成稳定的凝胶。还提供了一种用于在使用本发明的凝胶形成组合物的流体洪泛油回收过程中选择性地堵塞含油地下地层中具有较高渗透性的区域的方法，以提高扫除效率。

54. 发明授权

US4793416A Organic crosslinking of polymers for CO2 flooding profile control 失效
标题翻译：聚合物的有机交联用于二氧化碳淹没剖面控制
公开(公告)号：US4793416A
公开(公告)日：1988-12-27
申请号：US68006
申请日：1987-06-30
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C09K8/502 , E21B43/16 , E21B33/138 , E21B43/20
CPC分类号： C09K8/502 , E21B43/164 , Y02P90/70
摘要： A process for recovering hydrocarbonaceous fluids from a formation having a substantially low pH where a rehealable gel prepared ex-situ is used to close off a zone of greater permeability. Said gel is obtained by mixing into an aqueous medium sufficient biopolymer amounts of a Xanthan or Alcaligene polysaccharide. This mixture is maintained at a pH of about 5.5 while an aminoplast resin in excess of 4,000 ppm is added thereto which causes said gel to form in about 0.5 to 6 hours. The resultant gel is suitable for use in a carbon-dioxide flood process. Said gels are very stable at a pH of less than about 5.5.
摘要翻译：用于从具有基本上低的pH的地层中回收含烃流体的方法，其中使用非原位制备的可再循环凝胶来封闭较大渗透性的区域。所述凝胶是通过将含有生物聚合物量的黄原胶或Alcaligene多糖混合到水性介质中而获得的。将该混合物保持在约5.5的pH值，同时向其中加入超过4000ppm的氨基塑料树脂，其导致所述凝胶在约0.5至6小时内形成。所得凝胶适用于二氧化碳洪水过程。所述凝胶在小于约5.5的pH下非常稳定。

55. 发明授权

US4787451A Melamine/formaldehyde cross-linking of polymers for profile control 失效
标题翻译：用于轮廓控制的聚合物的三聚氰胺/甲醛交联
公开(公告)号：US4787451A
公开(公告)日：1988-11-29
申请号：US940682
申请日：1986-12-11
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C09K8/512 , C09K8/88 , E21B33/138 , E21B43/16 , E21B43/20
CPC分类号： C09K8/887 , C09K8/512
摘要： An improved process for forming improved gels where biopolymers and synthetic polymers are cross-linked with melamine/formaldehyde and other amino resins at an optimal range of ratios of amine to aldehyde in the amino resins. This optimal range of ratios can vary from about 1:6 to about 1:30 amine to aldehyde. Resins utilized in said optimal range are most effective for producing improved firm, stable gels. The resultant gels are useful in waterflooding and carbon dioxide flooding operations during the recovery of hydrocarboneaceous fluids.
摘要翻译：用于形成改进凝胶的改进方法，其中生物聚合物和合成聚合物与氨基树脂中胺与醛的最佳比例范围与三聚氰胺/甲醛和其它氨基树脂交联。这种最佳比例范围可以在约1:6至约1:30的胺到醛之间变化。在所述最佳范围内使用的树脂对于生产改进的坚固，稳定的凝胶是最有效的。在回收烃类流体期间，所得凝胶可用于注水和二氧化碳驱油操作。

56. 发明授权

US4698149A Enhanced recovery of hydrocarbonaceous fluids oil shale 失效
标题翻译：增加含油流体油页岩的回收
公开(公告)号：US4698149A
公开(公告)日：1987-10-06
申请号：US549120
申请日：1983-11-07
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C10G1/00
CPC分类号： C10G1/006
摘要： The present invention relates to a novel method for improving the recovery of hydrocarbon fluids from oil shale. The method comprises treating a mixture of oil shale and hydrocarbon fluid at a temperature below the retorting temperature of the shale and for a period of time sufficient to recover product hydrocarbon fluids in amount equivalent to at least 100 percent Fischer Assay.
摘要翻译：本发明涉及一种改善油页岩油气回收率的新方法。该方法包括在低于页岩的蒸煮温度的温度下处理油页岩和烃流体的混合物，并且持续足以以相当于至少100％的费歇尔测定的量回收产物烃流体的时间。

57. 发明授权

US4424113A Processing of tar sands 失效
标题翻译：焦油砂的加工
公开(公告)号：US4424113A
公开(公告)日：1984-01-03
申请号：US511615
申请日：1983-07-07
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C10G1/00 , C10G1/02 , C10G1/04
CPC分类号： C10G1/02 , C10G1/006 , C10G1/047
摘要： The present invention relates to an improved process for the recovery of bitumen from tar sands comprising first heating the raw tar sands with steam at a temperature sufficient to visbreak a portion of the bitumen without significant thermal cracking thereby producing a vaporous distillate product mixed with steam and lowering the viscosity and specific gravity of the residual bitumen on the heat treated tar sands. The distillate product and steam are cooled and condensed and mixed with the heat treated tar sands containing residual beneficiated bitumen to form a slurry. Bitumen is then recovered from the slurry by a hot-water separation process.
摘要翻译：本发明涉及一种用于从焦油砂中回收沥青的改进方法，其包括首先用蒸汽加热原料焦油砂，其温度足以使沥青的一部分不发生明显的热裂解，从而产生与蒸汽和蒸汽混合的蒸气馏出物，降低热处理焦油砂上残余沥青的粘度和比重。将蒸馏产物和蒸汽冷却并冷凝并与含有残留的精选沥青的经热处理的焦油砂混合以形成浆料。然后通过热水分离过程从浆料中回收沥青。

58. 发明授权

US4344838A Coal conversion catalysts 失效
标题翻译：煤转化催化剂
公开(公告)号：US4344838A
公开(公告)日：1982-08-17
申请号：US255912
申请日：1981-04-20
申请人： Thomas O. Mitchell
发明人： Thomas O. Mitchell
IPC分类号： C10G1/00 , C10G1/08 , C10G1/06
CPC分类号： C10G1/006 , C10G1/086
摘要： A solvent extraction process for coal conversion wherein coal liquids are contacted with spent petroleum hydrogenation catalyst or spent demetallizing guard chamber adsorbent.
摘要翻译：煤转化的溶剂萃取方法，其中煤液体与废石油加氢催化剂或废去金属保护室吸附剂接触。

59. 发明授权

US3983055A Synthetic amorphous silicas of predetermined pore distribution method of producing same 失效
标题翻译：合成无定形二氧化硅的预定孔分布方法的制备
公开(公告)号：US3983055A
公开(公告)日：1976-09-28
申请号：US450967
申请日：1974-03-14
申请人： Thomas O. Mitchell , Darrell Duayne Whitehurst
发明人： Thomas O. Mitchell , Darrell Duayne Whitehurst
IPC分类号： B01J21/08 , B01J31/12 , B01J37/00 , C07C1/32 , C07C4/06 , C07C5/02 , C07C5/03 , C08G77/06 , C08G77/38 , C10G45/04 , C10G45/60 , C10G47/02 , B01J29/00 , B01J29/06 , C01B33/12
CPC分类号： C10G45/60 , B01J21/08 , B01J37/00 , C07C1/322 , C07C4/06 , C07C5/02 , C07C5/03 , C08G77/06 , C08G77/38 , C10G45/04 , C07C2521/02 , C07C2521/06 , C07C2523/44 , C07C2523/75 , C07C2523/755 , C10G2400/26
摘要： Novel amorphous siliceous materials having shape-selective sorption properties are prepared by a novel process of (1) hydrolyzing an organosilicon compound of the formula R[Si]X.sub.3 alone or in the presence of one or more compounds either of the formula R'.sub.n MY.sub.m, wherein R and R' are non-hydrolyzable organic groups, X is a hydrolyzable group, Y is the same as X or oxygen, [Si] is silicon or --Si(R).sub.2 --O--Si , M is metal or non-metal, including silicon, of any group of the Periodic Table other than IA, IIA, VIIA or O, m is a number over 0 and up to 8 and n is 0 or a number less than 8, or an inorganic compound consisting of an anionic portion made up of M and y and a cationic portion of either hydrogen, alkali or alkaline earth metal or ammonium; (2) effecting condensation polymerization of the hydrolyzed product; and (3) calcining the resulting polymerized product to convert all the R and R' groups to hydroxy or hydrogen. Pore size distribution of the final composition is primarily controlled by appropriate selection of the R group of the R[Si]X.sub.3 precursor. The amorphous synthetic solids of this invention are useful in such conversion processes as shape-selective cracking, hydrocracking, hydrogenation-dehydrogenation, oxidation, and methanation processes. They are also useful as sorbents and catalyst supports.
摘要翻译：具有形状选择性吸附性质的新型无定形硅质材料通过以下新颖的方法制备：（1）单独或在一种或多种式R'nMYm，其中R和R'是不可水解的有机基团，X是可水解基团，Y与X或氧相同，[Si]是硅或-Si（R）2-O-Si，M是金属或非金属，除IA，IIA，VIIA或O以外的任何一组元素周期表中的金属，包括硅，m是0以上至8的数，n为0或小于8的数，或由由M和y组成的阴离子部分和氢，碱金属或碱土金属或铵的阳离子部分; （2）水解产物的缩聚反应; 和（3）煅烧所得聚合产物以将所有R和R'基团转化为羟基或氢。最终组合物的孔径分布主要通过适当选择R [Si] X3前体的R基团来控制。本发明的无定形合成固体可用于形状选择性裂化，加氢裂化，氢化 - 脱氢，氧化和甲烷化方法等转化过程。它们也可用作吸附剂和催化剂载体。

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