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公开(公告)号：US5277830A
公开(公告)日：1994-01-11
申请号：US953330
申请日：1992-09-29
CPC分类号： C09K8/887 , C09K8/905 , E21B43/261 , Y10S507/903 , Y10S507/935
摘要： A pH tolerant aqueous gel-forming composition for placement within a subterranean formation. The composition includes water, a viscosifying amount of a heteropolysaccharide prepared by growing Xanthomonas campestris NCIB 11854 in an aqueous nutrient medium by aerobic fermentation and recovering the heteropolysaccharide, and a crosslinking agent for the heteropolysaccharide in an amount sufficient to cause gelation of the aqueous solution of the Xanthomonas compestris NCIB 11854 heteropolysaccharide. Also described is a two-stage gel-forming composition for use in controlling the profile of a subterranean formation.
摘要翻译： 一种用于放置在地层内的耐酸性水性凝胶形成组合物。 该组合物包括水，通过需氧发酵在水性营养培养基中培养野油菜黄单胞菌NCIB 11854并回收杂多糖而制备的增稠量的杂多糖，以及杂多糖交联剂，其量足以引起水溶液的水溶液凝胶化 野油菜黄单胞菌NCIB 11854杂多糖。 还描述了一种用于控制地层的轮廓的两阶段凝胶形成组合物。
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公开(公告)号：US5156214A
公开(公告)日：1992-10-20
申请号：US628042
申请日：1990-12-17
CPC分类号： C09K8/887 , C09K8/905 , E21B43/261
摘要： A method for imparting selectivity to an in-situ gel-forming composition for placement within a subterranean oil-bearing formation having relatively high permeability zones and relatively low permeability zones, comprising the steps of: preparing an aqueous-based mixture, the mixture comprising: a first stage gel-forming composition in an amount effective to selectively enter the relatively high permeability zones of the formation, the first stage composition including a heteropolysaccharide prepared by growing Xanthomonas campestris NCIB 11854 in an aqueous nutrient medium by aerobic fermentation and recovering the heteropolysaccharide and a crosslinking agent for the heteropolysaccharide; and at least one second stage in-situ gel-forming composition comprising a water-dispersible polymer and a crosslinking agent for the water-dispersible polymer in an amount effective to form a stable gel; and gelling the first stage gel-forming composition ex-situ by reacting the Xanthomonas campestris NCIB 11854 heteropolysaccharide with the crosslinking agent for the heteropolysaccharide. The mixture so prepared exhibits greater selectivity than would a like mixture in the absence of the first stage selective gel-forming composition.
摘要翻译： 一种赋予原位凝胶形成组合物选择性的方法，用于放置在具有相对较高渗透性区域和相对低渗透率区域的地下含油地层内，包括以下步骤：制备含水基混合物，该混合物包含： 第一阶段凝胶形成组合物，其量有效地选择性地进入地层的相对较高的渗透性区域，第一阶段组合物包括通过需氧发酵在含水养分介质中培养野油菜黄单胞菌NCIB 11854制备的杂多糖，并回收杂多糖和 用于杂多糖的交联剂; 以及至少一种第二阶段原位凝胶形成组合物，其包含水分散性聚合物和用于形成稳定凝胶的量的水分散性聚合物的交联剂; 并通过使野油菜黄单胞菌NCIB 11854杂多糖与杂多糖的交联剂反应而原位凝胶化第一阶段凝胶形成组合物。 如此制备的混合物在不存在第一阶段选择性凝胶形成组合物的情况下表现出比类似混合物更大的选择性。
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3.发明授权Stabilizing agent for profile control gels and polymeric gels of improved stability 失效用于型材控制凝胶和聚合物凝胶的稳定剂具有改善的稳定性
公开(公告)号：US5028344A
公开(公告)日：1991-07-02
申请号：US497367
申请日：1990-03-22
申请人： Dennis H. Hoskin
发明人： Dennis H. Hoskin
IPC分类号： C09K8/512
CPC分类号： C09K8/512 , Y10S507/903 , Y10S507/935
摘要： An aqueous polymeric gel-forming composition of improved stability for selectively plugging highly permeable zones in subterranean oil-bearing formations. The composition comprises an aqueous solution of a water-dispersible polymer present in a viscosifying amount, a crosslinking agent present in an amount sufficient to cause gelation and a stabilizing agent in an amount effective to reduce syneresis of the gelled composition.
摘要翻译： 一种具有改进的稳定性的水性聚合物凝胶形成组合物，用于选择性地堵塞地下含油地层中的高渗透性区域。 组合物包含以增粘剂量存在的水分散性聚合物的水溶液，以足以引起凝胶化的量存在的交联剂和以有效降低凝胶化组合物脱水收缩的量的稳定剂。
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公开(公告)号：US5003006A
公开(公告)日：1991-03-26
申请号：US255093
申请日：1988-10-07
申请人： A. S. Chu , Harold S. Chung , Dennis H. Hoskin , Thomas O. Mitchell , Paul Shu
发明人： A. S. Chu , Harold S. Chung , Dennis H. Hoskin , Thomas O. Mitchell , Paul Shu
摘要： The permeability of a subterranean oil-bearing formation is controlled by the injection of an aqueous solution of a cross-linked block copolymer containing polar and non-polar segments, with the polar segments generally making up as least 50 percent, usually 60 to 99 percent, of the copolymer. The polar segments are derived from an alkylene oxide and the non-polar segments from styrene or an alkyl styrene either by itself or with a diene. The copolymers are cross-linked with an amino resin or a combination of a phenolic and a water-dispersible aldehyde component. The resulting copolymer gels are stable at low pH conditions, such as those of CO.sub.2 flood conditions.
摘要翻译： 通过注入含有极性和非极性链段的交联嵌段共聚物的水溶液来控制地下含油层的渗透性，极性链段通常占组合物的50％，通常为60-99％ 的共聚物。 极性链段由环氧烷和非极性链段由苯乙烯或烷基苯乙烯衍生自己或用二烯衍生。 共聚物与氨基树脂或酚和水分散性醛组分的组合交联。 所得共聚物凝胶在低pH条件下，例如二氧化碳淹没条件下是稳定的。
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公开(公告)号：US4735265A
公开(公告)日：1988-04-05
申请号：US46606
申请日：1987-05-07
IPC分类号： C09K8/508 , E21B33/138
CPC分类号： C09K8/508
摘要： A method of enhancing the amount of oil recovered from a subterranean oil-bearing formation by controlling the profile of the formation by introducing a predetermined first amount of a permeability control agent in a non-gelatinous state into the formation so that it contacts at least a portion of the formation. A portion of the pores of the formation are plugged by allowing contact to be maintained for a sufficient period of time allowing the first portion to gel. The first amount constitutes a portion of the total amount required to improve the profile of the formation. A predetermined second amount of permeability control agent is thereafter introduced, in a non-gelatinous state, into the formation which contacts the first amount and the portion of the formation not contacted by the first amount for a time period sufficient to gelatinize the second amount so as to plug the remaining unproductive pores of the formation. The second amount constitutes the remaining portion of the total amount required to improve the profile of the formation. Complete profile control is attained while not requiring any greater quantities of permeability control agent than those typically required in a single step profile control treatment.
摘要翻译： 一种通过将非凝胶状态的预定的第一量的渗透性控制剂引入所述地层中来控制所述地层的轮廓，从而增加从地下含油地层回收的油的量的方法，使得其接触至少一种 部分地层。 通过允许接触保持足够的时间段使得第一部分凝胶化，将部分孔隙堵塞。 第一个数量构成改善地层剖面所需总量的一部分。 然后以非凝胶状态将预定的第二量的渗透性控制剂引入接触第一量的地层和未接触第一量的地层部分足够使第二量凝胶化的时间段 以堵塞地层的剩余非生产性孔。 第二个数量构成改善地层剖面所需总量的剩余部分。 在不需要任何更多量的渗透性控制剂的情况下，完成轮廓控制，而不需要在单一步骤轮廓控制处理中通常需要的那些。
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公开(公告)号：US4660640A
公开(公告)日：1987-04-28
申请号：US697098
申请日：1985-02-01
IPC分类号： C09K8/508 , C09K8/88 , E21B33/138
CPC分类号： C09K8/885 , C09K8/5086
摘要： The permeability of subterranean oil-bearing formations is controlled by injection of an organic polysilicate ester. The ester may be derived from simple, monohydroxylic alcohols such as methanol, ethanol, propanol or butanol, from diols such as ethylene glycol, from polyols such as glycerol and alkylene oxide polymerization products and from other organic compounds containing function hydroxy groups, for example, partial ethers and esters of glycols and polyols. The polysilicates are injected into a formation through injection wells, suitably in an amount from 10 to 100% of the pore volume of the zone to be treated. In the formation, the polysilicate esters form gels which selectively plug the high permeability regions of the formation, to divert the flow of flooding liquid used in flooding operations to the less permeable regions of the formation.
摘要翻译： 通过注入有机聚硅酸酯酯来控制地下含油地层的渗透性。 该酯可以从二醇如乙二醇，多元醇如甘油和烯化氧聚合产物和其它含有官能羟基的有机化合物衍生自简单的单羟基醇如甲醇，乙醇，丙醇或丁醇，例如， 二醇和多元醇的部分醚和酯。 将多硅酸盐通过注入孔注入地层中，适当地为待处理区域的孔体积的10至100％。 在形成中，聚硅酸酯形成凝胶，其选择性地堵塞地层的高渗透性区域，以将用于淹没操作的溢流液体的流动转移到地层的较不可渗透的区域。
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公开(公告)号：US08303804B2
公开(公告)日：2012-11-06
申请号：US12287079
申请日：2008-10-06
申请人： Terry E. Helton , William J. Tracy, III , Michael T. Grove , Dennis H. Hoskin , Philip J. Angevine , David A. Pappal
发明人： Terry E. Helton , William J. Tracy, III , Michael T. Grove , Dennis H. Hoskin , Philip J. Angevine , David A. Pappal
IPC分类号： C10G69/02
CPC分类号： C10G3/00 , B01J29/74 , C10G45/04 , C10G47/18 , C10G65/12 , C10G2300/1014 , C10G2300/1018 , C10G2300/1051 , C10G2300/301 , C10G2300/4018 , C10G2400/08 , C10L1/04 , Y02P30/20
摘要： This invention relates to a process for improving the yield and properties of jet fuel from a kerosene feed. More particularly, a kerosene feedstock is hydrotreated and dewaxed using a ZSM-48 catalyst to produce a jet fuel in improved yield and having improved properties.
摘要翻译： 本发明涉及一种提高煤油进料的喷气燃料的产率和性能的方法。 更具体地，使用ZSM-48催化剂对煤油原料进行加氢处理和脱蜡以产生具有改进的性能的喷射燃料。
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8.发明授权Phenolic and naphtholic ester crosslinked polymeric gels for permeability profile control 失效酚醛和萘酚交联聚合物凝胶用于渗透率分布控制
公开(公告)号：US4926943A
公开(公告)日：1990-05-22
申请号：US322337
申请日：1989-03-10
申请人： Dennis H. Hoskin
发明人： Dennis H. Hoskin
IPC分类号： C09K8/512
CPC分类号： C09K8/512
摘要： An aqueous polymeric gel-forming composition which slowly crosslinks to form stable gels for plugging highly permeable zones in subterranean oil-bearing formations. The composition comprises an aqueous solution of a water-dispersible polymer present in a viscosifying amount and a crosslinking agent present in an amount effective to cause gelation of the polymeric solution which comprises a mixture of an aldehyde and a member selected from the group consisting of phenolic ester, naphtholic esters, halogenated phenolic esters and halogenated naphtholic esters.
摘要翻译： 一种水性聚合物凝胶形成组合物，其缓慢地交联以形成稳定的凝胶，以堵塞地下含油地层中的高渗透性区域。 该组合物包含以增粘剂量存在的水分散性聚合物的水溶液和以有效引起聚合物溶液凝胶化的量的交联剂，其含有醛和选自酚类的组分的混合物 酯，萘酚酯，卤代酚酯和卤代萘酚酯。
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9.发明授权Method for imparting selectivity to otherwise nonselective polymer control gels 失效赋予其它非选择性聚合物控制凝胶选择性的方法
公开(公告)号：US4901795A
公开(公告)日：1990-02-20
申请号：US284626
申请日：1988-12-25
IPC分类号： C09K8/512
CPC分类号： C09K8/512 , Y10S507/903 , Y10S507/935
摘要： A method for selectively closing pores in a formation's zone of greater permeability. A rehealable Xanthan or Alcaligenes biopolymer in an aqueous medium is combined with an organic or transition metal cross-linker which forms a first stage selective ex-situ gel. Second stage non-selective gel precursors are also included. The second stage gel comprises a polymer cross-linked with organic cross-linkers so as to form an in-situ gel more able to withstand formation conditions. The combination is injected into a formation after the first stage gel forms where it selectively enters a zone of greater permeability carrying therewith said non-selective gel. Once in the formation's zone of greater permeability, the gel reheals and forms a rigid gel having the desirable characteristics of the non-selective gel.
摘要翻译： 选择性地封闭地层较大渗透率区域的孔隙的方法。 在水性介质中的可再热黄原胶或产碱杆菌生物聚合物与形成第一阶段选择性离位凝胶的有机或过渡金属交联剂组合。 还包括第二阶段非选择性凝胶前体。 第二阶段凝胶包含与有机交联剂交联的聚合物，以便形成更能承受形成条件的原位凝胶。 在第一阶段凝胶形成之后，将组合注入到地层中，在那里它选择性地进入带有所述非选择性凝胶的较大渗透性区域。 一旦形成了较高渗透性的区域，凝胶再次加热并形成具有非选择性凝胶所需特征的刚性凝胶。
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10.发明授权Oil reservoir permeability profile control with crosslinked welan gum biopolymers 失效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
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。
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