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    TREATMENT OF OIL AND OIL-CONTAINING FORMULATIONS
    4.
    发明申请
    TREATMENT OF OIL AND OIL-CONTAINING FORMULATIONS 审中-公开
    含油和含油配方的处理

    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。

    Fracturing of subterranean formations
    5.
    发明申请
    Fracturing of subterranean formations 审中-公开
    地下地层断裂

    公开(公告)号：US20070114028A1

    公开(公告)日：2007-05-24

    申请号：US10574359

    申请日：2004-09-23

    申请人： Michael Crabtree ,  Philip Fletcher

    发明人： Michael Crabtree ,  Philip Fletcher

    IPC分类号： E21B43/267

    CPC分类号： C09K8/685 ,  C09K8/68

    摘要： Fracturing of a subterranean formation may be achieved using a hydrogel. A preferred gel is formed from a gel precursor formulation which comprises an aqueous formulation of poly(1,4-di(4-(N-methylpyridinyl))-2,3-di(4-(1-formylphenyl)butylidene), poly (vinyl alcohol) and a suitable proppant, in the presence of an acid catalyst. The gel may be prepared at the surface with a viscosity of greater than 200 cp measured at 100 s−1 and then injected into the subterranean formation under high pressure to fracture the formation.

    摘要翻译： 可以使用水凝胶来实现地层的压裂。 优选的凝胶由凝胶前体制剂形成，其包含聚（1,4-二（4-（N-甲基吡啶基））-2,3-二（4-（1-甲酰基苯基）亚丁基），聚 （乙烯醇）和合适的支撑剂，在酸催化剂的存在下，可以在表面制备粘度大于200cp的粘度，然后将其注入到 地层在高压下破裂形成。

    Method for the determination of the ionic content of drilling mud
    6.
    发明授权
    Method for the determination of the ionic content of drilling mud 失效
    用于确定钻井泥浆的离子含量的方法

    公开(公告)号：US5140527A

    公开(公告)日：1992-08-18

    申请号：US446895

    申请日：1989-12-06

    申请人： Timothy Jones ,  Trevor Hughes ,  Philip Fletcher

    发明人： Timothy Jones ,  Trevor Hughes ,  Philip Fletcher

    IPC分类号： E21B21/08 ,  E21B49/00 ,  G01N30/02

    CPC分类号： E21B49/005 ,  E21B21/08 ,  G01N30/02

    摘要： In the rotary drilling of oil wells a drilling mud is used both to transport the cuttings up to the surface and to impose an hydrostatic pressure on the walls of the borehole. For these functions the mud must for example have an acceptable viscosity and density. It is therefore important to monitor the characteristics of the mud, and to keep them within certain limits. Only recently, however, has drilling practice recognized the importance of monitoring the mud's ionic composition. The various techniques proposed involve separation of the mud into liquid and solid portions, and analysis of these. Though they have proven useful, yet there are a number of problems. For example, the separation has not always been easy, and the available techniques often may not satisfactorily remove the fines. The invention suggests that these two problems, at least, can be overcome by the relatively simple expedient of first acidifying the mud sample, for acidification both causes the mud particles to flocculate, and so be more easily separated off, and causes the active fines to dissolve. In a preferred embodiment hydrobromic acid is employed, together with tetramethylammonium bromide (a displacement agent enabling the mud solid's Cationic Exchange Capacity to be measured), the separation is by filtration, and the analysis is by ion chromatography--and the results are fed into a computer model that then calculates the original mud components.

    Recovery of Oil
    7.
    发明申请
    Recovery of Oil 审中-公开
    油的回收

    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

    IPC分类号： C09K8/588 ,  E21B43/16

    CPC分类号： C09K8/588 ,  E21B43/16

    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。

    TREATMENT OF OIL
    8.
    发明申请
    TREATMENT OF OIL 审中-公开
    油的处理

    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

    IPC分类号： C09K8/588 ,  E21B43/12

    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。

    HYDROCARBONS
    9.
    发明申请
    HYDROCARBONS 有权
    油库

    公开(公告)号：US20100186966A1

    公开(公告)日：2010-07-29

    申请号：US12452079

    申请日：2008-06-03

    申请人： Michael John Crabtree ,  Philip Fletcher ,  Jeffrey Forsyth

    发明人： Michael John Crabtree ,  Philip Fletcher ,  Jeffrey Forsyth

    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 。

    Method of improving performance and efficiency of wellbore pump for hydrocarbon production
    10.
    发明授权
    Method of improving performance and efficiency of wellbore pump for hydrocarbon production 有权
    提高油气井生产油井泵性能和效率的方法

    公开(公告)号：US08672033B2

    公开(公告)日：2014-03-18

    申请号：US12452079

    申请日：2008-06-03

    申请人： Michael John Crabtree ,  Philip Fletcher ,  Jeffrey Forsyth

    发明人： Michael John Crabtree ,  Philip Fletcher ,  Jeffrey Forsyth

    IPC分类号： E21B43/16 ,  E21B37/00

    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： 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。