Method of thickening salt-containing media by adding methacrylate derivatives
    1.
    发明申请
    Method of thickening salt-containing media by adding methacrylate derivatives 审中-公开
    通过加入甲基丙烯酸酯衍生物来增稠含盐介质的方法

    公开(公告)号:US20080004188A1

    公开(公告)日:2008-01-03

    申请号:US11706873

    申请日:2007-02-15

    IPC分类号: C09K8/12

    摘要: Methacrylate derivatives are added to salt-containing media to thicken the media, and are particularly useful in the exploration of mineral oil or natural gas deposits. The salt-containing media have a specific density of 1.2 to 2.5 kg/l. The respective methacrylate derivatives, which may be, e.g., mono- and/or difunctional variants, have been found to be particularly suitable, are used in a volume ratio of 100 to 1:1 and an amount of 0.5 to 15% by volume. The thickening of the salt-containing media is effected primarily as gel formation, which can be carried out with the aid of free radical initiators and at elevated temperatures. In particular, completion brines, drilling and drill-in fluids and fracturing fluids and acids having high salt contents are to be regarded as aqueous media. The methacrylate derivatives have a markedly good solubility in heavy brines, as are used primarily in upstream processes of the oil industry. They can also be polymerized subterraneously, and they simultaneously have a high thermal stability.

    摘要翻译: 将甲基丙烯酸酯衍生物加入到含盐介质中以增稠介质,并且特别可用于勘探矿物油或天然气沉积物。 含盐介质的特定密度为1.2〜2.5kg / l。 已经发现各自的甲基丙烯酸酯衍生物,其可以是例如单 - 和/或二官能的变体,特别适合的是以体积比为100:1至1:1,量为0.5至15体积%的量使用。 含盐介质的增稠主要作为凝胶形成,其可以借助自由基引发剂和升高的温度进行。 具体来说,完井盐水,钻井钻井液和压裂液以及盐含量高的酸被认为是含水介质。 甲基丙烯酸酯衍生物在重盐水中具有显着良好的溶解度,主要用于石油工业的上游方法。 它们也可以在亚区域聚合,同时具有很高的热稳定性。

    Additive for drilling fluids
    2.
    发明申请

    公开(公告)号:US20060166833A1

    公开(公告)日:2006-07-27

    申请号:US11316325

    申请日:2005-12-22

    IPC分类号: C09K8/00 E21B43/00

    摘要: Subject matter of the present invention is a drilling fluid additive based on sulfonated asphalt, which comprises a water soluble and anionic polymer component in quantities of 0.1 to 20 wt. %, with respect to the total additive in addition to the asphalt component. With this additive the water solubility of sulfonated asphalt can be markedly increased. This additive, whose polymer component is thermally highly stable, is utilized primarily in water- and/or oil-based drilling fluids and in particular in the exploration of subterraneous petroleum and natural gas deposits. Typical polymer components to consider are representatives of polycondensation products, such as phenol resins, ketone resins and sulfonated naphthalene, acetone and amino plasticizer resins (for example urea and melamine resins).

    Method for breaking the viscosity of polymer-thickened aqueous systems for mineral oil and natural gas exploration
    3.
    发明申请
    Method for breaking the viscosity of polymer-thickened aqueous systems for mineral oil and natural gas exploration 审中-公开
    用于破坏矿物油和天然气勘探的聚合物增稠水性体系的粘度的方法

    公开(公告)号:US20080194432A1

    公开(公告)日:2008-08-14

    申请号:US11706058

    申请日:2007-02-14

    IPC分类号: C09K3/00

    摘要: A novel method for breaking the viscosity of an aqueous phase thickened with preferably hydrophilic polymers in the exploration and production of mineral oil and/or natural gas is proposed. For this purpose, the breaking is carried out via the formation of a low-viscosity emulsion, with water as the continuous phase, this emulsion being formed by the addition of at least one surface-active component to a system which consists of the thickened drilling fluid and an oil phase which is crude oil present in the reservoir and/or oil introduced into the reservoir. Solubilizers between oil phase and water phase and in particular non-ionic surfactants, cationic surfactants and/or amphoteric surfactants are used as a preferred surface-active component. In addition to the surface-active component, it is possible to use further components, which are demulsifiers, non-emulsifiers, co-surfactants or surface tension modifiers. With the aid of this method, with the simultaneous presence of an oil phase, the aqueous phase can be displaced as a low-viscosity system and finally discharged at the surface, extremely effective cleaning of the well being associated therewith. With regard to the cost-efficiency and from an environmental point of view, the use of chemicals can be completely dispensed with.

    摘要翻译: 提出了一种在勘探和生产矿物油和/或天然气中破坏优选亲水聚合物增稠的水相粘度的新方法。 为此目的,通过形成低粘度乳液进行断裂,以水为连续相,该乳液通过将至少一种表面活性组分加入到由增稠的钻孔 流体和油相,其是存在于储存器中的原油和/或引入储存器的油。 油相和水相之间的增溶剂,特别是非离子表面活性剂,阳离子表面活性剂和/或两性表面活性剂被用作优选的表面活性组分。 除了表面活性组分之外,还可以使用其它组分,这些组分是破乳剂,非乳化剂,辅助表面活性剂或表面张力调节剂。 借助该方法,同时存在油相,水相可以作为低粘度体系移位,最后在表面排出,极其有效地清洗与其相关的井。 关于成本效益和从环境的角度来看,化学品的使用可以完全免除。

    Method of using high-alumina cements for rheology control of liquid phases
    4.
    发明申请
    Method of using high-alumina cements for rheology control of liquid phases 审中-公开
    使用高氧化铝水泥进行液相流变控制的方法

    公开(公告)号:US20070227404A1

    公开(公告)日:2007-10-04

    申请号:US11590660

    申请日:2006-10-30

    IPC分类号: C04B28/06 C04B14/00

    CPC分类号: C09K8/16 C09K8/265 C09K8/36

    摘要: Rheological control of liquid phases is provided with a composition comprising a high-alumina cement component a) for controlling the rheology of liquid phases based on a clay component b). Component a) is preferably a calcium aluminate cement and component b) is preferably a clay of the smectite variety. The compositions comprise at least 20% by weight representative of the calcium aluminate cement and is preferably used for rheology control of water- or oil-based systems.

    摘要翻译: 液相的流变控制提供有包含高铝水泥组分a)的组合物,用于基于粘土组分b)控制液相的流变性。 组分a)优选是铝酸钙水泥,组分b)优选是蒙脱石品种的粘土。 组合物包含至少20重量%的代表铝酸钙水泥,并且优选用于水基或油基体系的流变学控制。

    COPOLYMER BASED ON OLEFINIC SULPHONIC ACIDS
    5.
    发明申请
    COPOLYMER BASED ON OLEFINIC SULPHONIC ACIDS 审中-公开
    基于烯丙基磺酸的共聚物

    公开(公告)号:US20070100102A1

    公开(公告)日:2007-05-03

    申请号:US11551490

    申请日:2006-10-20

    IPC分类号: C08F230/08 C08F228/02

    摘要: A copolymer based on olefinic sulphonic acids as monomer component a) and an organosilicone-containing compound as reactive component b) is proposed, for which in particular 2-acrylamido-2-methylpropanesulphonic acid (AMPS®) is suitable as component a) and vinyltrimethoxysilane, vinyltriethoxysilane and trichlorosilane as component b). This copolymer, which may have a molecular weight of from 5,000 to 5,000,000 g/mol, may also comprise further reaction components c) and d) in addition to the two main components for which further reaction components (meth)acrylamides or vinyl ethers are suitable. These copolymers, which are obtainable in particular by precipitation or gel polymerizations, are used in particular in applications in construction chemistry and here especially as water retention agents and fluid loss additives in drilling fluids and for well cementing. The novel copolymers are distinguished by pronounced thermal stability, which is displayed especially under difficult pressure conditions and at high salinities.

    摘要翻译: 提出了基于烯属磺酸作为单体组分a)和含有机硅氧烷化合物作为反应组分b)的共聚物,其中特别是2-丙烯酰胺基-2-甲基丙烷磺酸(AMPS)适合作为组分a) 乙烯基三甲氧基硅烷,乙烯基三乙氧基硅烷和三氯硅烷作为组分b)。 除了其它反应组分(甲基)丙烯酰胺或乙烯基醚是合适的两种主要成分之外,该共聚物可以具有5,000至5,000,000g / mol的分子量的其它反应组分c)和d) 。 特别是通过沉淀或凝胶聚合可获得的这些共聚物特别用于建筑化学应用中,尤其用于钻井液中的保水剂和流体损失添加剂以及用于固井。 新型共聚物的特征在于明显的热稳定性,其特别在困难的压力条件下和高盐度下显示。

    Process for the fractionation of wool wax acid mixtures
    6.
    发明授权
    Process for the fractionation of wool wax acid mixtures 失效
    羊毛蜡酸混合物分馏方法

    公开(公告)号:US5811563A

    公开(公告)日:1998-09-22

    申请号:US614131

    申请日:1996-03-12

    摘要: Disclosed is a process for the fractionation of wool wax acid mixtures by dissolving the starting material in a polar organic solvent (mixture). The dissolved wool wax acid mixture is treated at a temperature between -5 and 30.degree. C. and at a pressure between 10 and 70 bar with gaseous carbon dioxide and the hydroxy-fatty acids that accumulate as a solid are separated from the solution.

    摘要翻译: 公开了通过将原料溶解在极性有机溶剂(混合物)中来分级羊毛蜡酸混合物的方法。 将溶解的羊毛蜡酸混合物在-5至30℃的温度和10至70巴之间的压力下用气态二氧化碳处理,并将作为固体积聚的羟基脂肪酸与溶液分离。

    Process for the extraction of fats and oils
    9.
    发明授权
    Process for the extraction of fats and oils 失效
    脂肪和油的提取方法

    公开(公告)号:US5405633A

    公开(公告)日:1995-04-11

    申请号:US131296

    申请日:1993-10-04

    IPC分类号: C09F5/02 C11B1/10 A23D9/02

    CPC分类号: C11B1/104

    摘要: A process for the extraction of fats and oils from natural substances using liquid propane as the solvent is described in which the extraction is carried out at a pressure of 10 to 30 bar and a temperature of 10.degree. to 55.degree. C. and the separation of the extracted fats and oils from the solvent is carried out by means of pressure reduction or/and temperature increase to .ltoreq.80.degree. C. High quality products are isolated in this way in a good yield and under mild conditions.

    摘要翻译: 描述了使用液体丙烷作为溶剂从天然物质中提取脂肪和油的方法,其中提取在10至30巴的压力和10至55℃的温度下进行, 从溶剂中提取的脂肪和油通过减压或/或升温至<80℃进行。高产品以这种方式以良好的产率和温和的条件分离。