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1.发明授权公开(公告)号：US08672033B2
公开(公告)日：2014-03-18
申请号：US12452079
申请日：2008-06-03
CPC分类号： C09K8/588 , C09K8/882 , C09K8/887 , C10M173/02 , C10M2209/062 , C10N2230/02 , E21B43/121 , E21B43/127 , E21B43/128 , E21B43/25 , C10M2209/04
摘要： Method of improving performance or efficiency of a wellbore pump associated with a wellbore and/or for increasing the rate of production of reservoir fluid from a reservoir, in which a wellbore pump is arranged to pump wellbore fluid within the wellbore to a surface. The method includes (a) selecting a wellbore which includes an associated wellbore pump associated with a production tube and arranged within a casing. An annulus is defined between the casing and the pump/production tube, the annulus including reservoir fluid which has a hydrostatic head which is at least 15 m above the level of an inlet of the wellbore pump, and (b) contacting a reservoir fluid in the annulus upstream of an inlet of the wellbore pump with a treatment formulation. The treatment formulation has a first polymeric material which includes —O— moieties pendent from a polymeric backbone thereof, and the first polymeric material is optionally cross-linked.
摘要翻译： 提高与井眼相关联的井眼泵的性能或效率的方法和/或用于提高储层的储层流体的生产速率，其中井筒泵布置成将井眼内的流体井筒内的井筒泵送到表面。 该方法包括（a）选择井眼，其包括与生产管相关联并且布置在壳体内的相关联的井筒泵。 在壳体和泵/生产管之间限定环形空间，包括储层流体的环形空间，其具有位于井眼泵的入口水平面以上至少15m的静水压头，和（b）使储层流体在 具有处理配方的井筒泵入口上游的环形空间。 处理制剂具有第一聚合物材料，其包含从其聚合物主链悬挂的-O-部分，并且第一聚合物材料任选地是交联的。
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公开(公告)号：US20100294497A1
公开(公告)日：2010-11-25
申请号：US12311849
申请日：2007-10-17
CPC分类号： E21B43/305 , C09K8/588 , C09K8/592 , E21B43/20
摘要： A method of recovering oil from a subterranean formation which includes an association production well involves contacting oil in the formation with a treatment fluid formulation which includes polyvinylalcohol and collecting oil which is being contacted with said treatment fluid formulation by said production well. Use of the polyvinylalcohol, optionally in combination with other materials, facilities recovery of oil from subterranean formation, particularly those involving medium or high viscosity oils.
摘要翻译： 从包括缔合生产井的地层中回收油的方法包括使地层中的油与包括聚乙烯醇和收集油的处理流体配方接触，所述处理流体配方与所述生产井与所述处理流体配制物接触。 使用聚乙烯醇，任选地与其它材料组合，设备从地层中回收油，特别是涉及中等或高粘度油的那些。
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公开(公告)号：US20120285745A1
公开(公告)日：2012-11-15
申请号：US13522567
申请日：2011-01-25
CPC分类号： C09K8/035 , C09K2208/28 , C09K2208/34 , F02P7/021
摘要： An additive for a water-based mud drilling fluid or for drill-in fluids comprises a 0.5 wt % solution of 87-89 mole % hydrolysed polyvinylalcohol, having a weight average molecular weight of about 20,000. Use of the additive may reduce susceptibility of a wellbore to blockages, reduce accumulation of accretions between a drill string and wellbore casing, reduce bit-balling and facilitate separation of undesirable insoluble solids from a drilling fluid returned to the surface.
摘要翻译： 用于水基泥浆钻井液或钻入流体的添加剂包括重均分子量为约20,000的0.5重量％的87-89摩尔％水解的聚乙烯醇溶液。 添加剂的使用可能降低井眼对堵塞的敏感性，减少钻柱和井眼套管之间的积聚累积，减少钻孔，并有助于从返回到表面的钻井液中分离不需要的不溶性固体。
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公开(公告)号：US08357745B2
公开(公告)日：2013-01-22
申请号：US11887828
申请日：2006-03-27
申请人： Jeffrey Forsyth , Philip Fletcher
发明人： Jeffrey Forsyth , Philip Fletcher
IPC分类号： C08K3/20
CPC分类号： F17D1/17 , C09K8/588 , C10G29/22 , C10G2300/1033 , C10G2300/304 , C10G2300/44 , C10L1/10 , C10L1/125 , C10L1/1608 , C10L1/1616 , C10L1/1824 , C10L1/19 , C10L1/1955 , C10L1/1973 , C10L1/198 , C10L1/2222 , C10L1/2437 , C10L10/16 , C10M145/04 , C10M2209/04 , C10N2230/04
摘要： Wax-containing crude oils are treated with polyvinyl alcohol, which is optionally cross-linked, to improve the mobility of the oil and thereby facilitate its transport between its point of production and a point downstream thereof.
摘要翻译： 含蜡原油用任选交联的聚乙烯醇处理以改善油的流动性，从而促进其在其生产点和其下游点之间的运输。
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公开(公告)号：US20120261124A1
公开(公告)日：2012-10-18
申请号：US13452281
申请日：2012-04-20
CPC分类号： E21B43/305 , C09K8/588 , C09K8/592 , E21B43/20
摘要： A method of recovering oil from a subterranean formation which includes an association production well involves contacting oil in the formation with a treatment fluid formulation which includes polyvinylalcohol and collecting oil which is being contacted with said treatment fluid formulation by said production well. Use of the polyvinylalcohol, optionally in combination with other materials, facilitates recovery of oil from subterranean formation, particularly those involving medium or high viscosity oils.
摘要翻译： 从包括缔合生产井的地层中回收油的方法包括使地层中的油与包括聚乙烯醇和收集油的处理流体配方接触，所述处理流体配方与所述生产井与所述处理流体配制物接触。 使用聚乙烯醇，任选地与其他材料组合，有助于从地层中回收油，特别是涉及中等或高粘度油的油。
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公开(公告)号：US20090005490A1
公开(公告)日：2009-01-01
申请号：US11887828
申请日：2006-03-27
申请人： Jeffrey Forsyth , Philip Fletcher
发明人： Jeffrey Forsyth , Philip Fletcher
IPC分类号： C08L91/00
CPC分类号： F17D1/17 , C09K8/588 , C10G29/22 , C10G2300/1033 , C10G2300/304 , C10G2300/44 , C10L1/10 , C10L1/125 , C10L1/1608 , C10L1/1616 , C10L1/1824 , C10L1/19 , C10L1/1955 , C10L1/1973 , C10L1/198 , C10L1/2222 , C10L1/2437 , C10L10/16 , C10M145/04 , C10M2209/04 , C10N2230/04
摘要： Wax-containing crude oils are treated with polyvinyl alcohol, which is optionally cross-linked, to improve the mobility of the oil and thereby facilitate its transport between its point of production and a point downstream thereof.
摘要翻译： 含蜡原油用任选交联的聚乙烯醇处理以改善油的流动性，从而促进其在其生产点和其下游点之间的运输。
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公开(公告)号：US20140332446A1
公开(公告)日：2014-11-13
申请号：US14240182
申请日：2012-08-20
申请人： Philip Fletcher , Jeffrey Forsyth , Cory Jaska
发明人： Philip Fletcher , Jeffrey Forsyth , Cory Jaska
IPC分类号： C10G33/04
CPC分类号： C10G33/04 , B01D17/047 , E21B21/068 , E21B43/34
摘要： There is disclosed a method of separating a mixture (e.g. dispersion) of oil and water into oil-rich and water-rich phases, the method comprising the steps: (i) selecting a mixture which comprises oil recovered from a subterranean formation and a treatment formulation, wherein said treatment formulation was added to the oil in order to facilitate its recovery and/or mobility, wherein said treatment formulation has an Interfacial Tension (IFT), measured against a sample of said oil in the range 2 to 20 mN/m; (ii) directing said mixture to a separation means; and (iii) in the absence of a chemical demulsifier, heating the mixture until separation is effected at least partially under gravity. Preferably the IFT is in the range 9 to 12 mN/m. The mixture of oil and water may be formed by treating oil in a subterranean formation.
摘要翻译： 公开了将油和水的混合物（例如分散体）分离成富油和富水相的方法，该方法包括以下步骤：（i）选择包含从地层回收的油和处理的混合物 制剂，其中将所述处理制剂加入到油中以促进其回收和/或迁移性，其中所述处理制剂具有界面张力（IFT），其对所述油的样品测量范围为2至20mN / m ; （ii）将所述混合物引导至分离装置; 和（iii）在没有化学破乳剂的情况下，加热混合物直至至少部分地在重力下进行分离。 优选地，IFT在9至12mN / m的范围内。 油和水的混合物可以通过处理地层中的油而形成。
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公开(公告)号：US20140190699A1
公开(公告)日：2014-07-10
申请号：US14236120
申请日：2012-07-23
申请人： Philip Fletcher , Jeffrey Forsyth , Cory Jaska
发明人： Philip Fletcher , Jeffrey Forsyth , Cory Jaska
摘要： A treatment formulation for use in enhanced oil recovery is described which includes a dispersing polymer which may be a partly hydrolyzed polyvinyl alcohol and a displacing polymer which may be a partially hydrolysed polyacrylamide.
摘要翻译： 描述了用于增强采油的处理配方，其包括可以是部分水解的聚乙烯醇的分散聚合物和可以是部分水解的聚丙烯酰胺的置换聚合物。
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公开(公告)号：US20120267113A1
公开(公告)日：2012-10-25
申请号：US13392363
申请日：2010-08-24
申请人： Philip Fletcher , Jeffrey Forsyth
发明人： Philip Fletcher , Jeffrey Forsyth
CPC分类号： C09K8/588 , C09K8/882 , C09K2208/28 , F17D1/17
摘要： A method of treating crude oil which comprises contacting the oil with a treatment fluid formulation comprising a polymeric material which comprises vinylalcohol repeat units, wherein said polymeric material is of a type which has a weight average molecular weight in the range 5,000 to 50,000 and/or wherein the viscosity of a 4 wt % aqueous solution of the polymeric material at 2° C. is in the range 1.5-7 cP. The oil may be contacted with the treatment fluid formulation underground by, for example, injection of the fluid formulation into an injection well or production well and the mobility of the oil contacted thereby is significantly improved.
摘要翻译： 一种处理原油的方法，其包括使所述油与包含乙烯醇重复单元的聚合物材料的处理流体配方接触，其中所述聚合材料是重均分子量在5,000至50,000和/或 其中聚合物材料在2℃下的4wt％水溶液的粘度在1.5-7cP的范围内。 油可以通过例如将流体制剂注入注射井或生产井中而与地下处理流体制剂接触，并且显着改善与其接触的油的迁移率。
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公开(公告)号：US20100186966A1
公开(公告)日：2010-07-29
申请号：US12452079
申请日：2008-06-03
IPC分类号： E21B43/00
CPC分类号： C09K8/588 , C09K8/882 , C09K8/887 , C10M173/02 , C10M2209/062 , C10N2230/02 , E21B43/121 , E21B43/127 , E21B43/128 , E21B43/25 , C10M2209/04
摘要： An oil well includes a wellbore (2), below ground level (4), which extends to an oil reservoir (6). The wellbore includes a casing (8) within which is arranged a progressing cavity pump (PCP) 10 which includes an inlet (12) at its lower end and is connected at its upper end to production tube (14). An annulus (16) is defined between the pump (10)/tube (14) and the casing (8). The annulus communicates with the reservoir and includes a head (20) of reservoir fluid. A water based formulation which comprises an optionally cross-linked polyvinylalcohol can be poured down the annulus (16) and pass under gravity to the reservoir (6), immediately upstream of inlet (12). The formulation may improve the performance and efficiency of the pump (10) due to its ability to increase the mobility of the oil in the reservoir immediately upstream of the pump (10) and/or enhance the ability of the oil to enter the pump inlet. Furthermore, by improving mobility and/or reducing the level of back pressure when the oil enters the pump inlet (or any other constriction) the rate of flow of oil from the reservoir into the wellbore may be increased resulting in an increased rate of oil production.
摘要翻译： 油井包括在地平面（4）下方的井筒（2），其延伸到油储存器（6）。 井筒包括壳体（8），在壳体（8）内设置有前进空腔泵（PCP）10，其在其下端包括入口（12），并在其上端连接到生产管（14）。 在泵（10）/管（14）和壳体（8）之间限定有环（16）。 环形空间与储存器连通并且包括储存器流体的头部（20）。 包含任选交联的聚乙烯醇的基于水的制剂可以倒入环状物（16），并且在入口（12）的紧邻上游处重力通过储存器（6）。 该配方可以改善泵（10）的性能和效率，因为其能够增加紧邻泵（10）上游的容器内的油的流动性和/或提高油进入泵入口的能力 。 此外，当油进入泵入口（或任何其他收缩）时，通过改善流动性和/或降低背压水平，可以增加油从储层进入井眼的流量，从而提高石油产量 。
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