Method of reducing the permeability of a subterranean formation
    11.
    发明授权
    Method of reducing the permeability of a subterranean formation 失效
    降低地层渗透性的方法

    公开(公告)号:US4600057A

    公开(公告)日:1986-07-15

    申请号:US663803

    申请日:1984-10-23

    申请人: John K. Borchardt

    发明人: John K. Borchardt

    IPC分类号: C09K8/575 C09K8/88 E21B43/22

    摘要: A method of reducing the permeability of a subterranean formation comprising contacting the formation with an aqueous polymerizable composition comprising a polymerization monomer, a polymerization catalyst having a latent period, and an alcoholic compound selected from the group consisting of a cyclic ether containing a hydroxymethylene substituent on a carbon atom bonded to the ether oxygen, an aliphatic alcohol having a carbon-to-carbon double bond or a carbon-to-carbon triple bond, and mixtures thereof.

    摘要翻译: 一种降低地层的渗透性的方法,包括使所述地层与包含聚合单体,具有潜伏期的聚合催化剂和选自以下的醇化合物的含水可聚合组合物接触:含有羟基亚甲基取代基的环醚 与醚氧结合的碳原子,具有碳 - 碳双键或碳 - 碳三键的脂族醇及其混合物。

    High density well drilling, completion and workover brines, fluid loss
reducing additives therefor and methods of use
    12.
    发明授权
    High density well drilling, completion and workover brines, fluid loss reducing additives therefor and methods of use 失效
    高密度钻井,完井和修井盐水,减少流体的添加剂和使用方法

    公开(公告)号:US4554081A

    公开(公告)日:1985-11-19

    申请号:US612203

    申请日:1984-05-21

    IPC分类号: C09K8/12 C09K7/00

    CPC分类号: C09K8/12 Y10S507/925

    摘要: High density well drilling, completion and workover brines having low fluid loss to subterranean formations when in contact therewith are provided comprised of water, one or more inorganic salts, and an additive for reducing fluid loss. The additive is comprised of water soluble binary or ternary copolymers formed from vinyl monomers. Methods of use are also provided.

    摘要翻译: 提供了与接触时具有低地下地层的液体损失的高密度钻井,完井和修井盐水,其包括水,一种或多种无机盐和用于减少流体损失的添加剂。 添加剂由乙烯基单体形成的水溶性二元或三元共聚物组成。 还提供了使用方法。

    Hydraulic fracturing in subterranean formations
    15.
    发明授权
    Hydraulic fracturing in subterranean formations 失效
    地层中的水力压裂

    公开(公告)号:US5024276A

    公开(公告)日:1991-06-18

    申请号:US442265

    申请日:1989-11-28

    申请人: John K. Borchardt

    发明人: John K. Borchardt

    IPC分类号: C09K8/68 C09K8/70

    摘要: This invention provides a process for the hydraulic fracturing of a subterranean formation, which comprises introducing into the formation under fracturing pressure a fracturing fluid comprising solid particulate suspended in a fluid dispersion comprising water, a specified gaseous or supercritical component, and a surfactant component selected from a certain class of polysaccharide compounds. For purposes of this invention, the gaseous or supercritical carbon dioxide and gaseous nitrogen, carbon dioxide and C.sub.1 to C.sub.3 hydrocarbons, and mixtures thereof. The polysaccharide component comprises one or more surfactants of the formula RO(R.sup.1 O).sub.x Sacc.sub.z, wherein R is a monovalent organic radical having a carbon number in the range from about 7 to 24, R.sup.1 represents a divalent hydrocarbon radical containing from about 2 to about 4 carbon atoms, x is a number having an average value in the range from 0 to about 12.0, and Sacc.sub.z represents an average number z between about 0.7 and 10.0 of moieties derived from reducing saccharides containing 5 or 6 carbon atoms. R preferably represents an alkyl, alkylphenyl, hydroxyalkyl phenyl, or hydroxyalkyl moiety having a carbon number in the range from about 8 to about 20; the optional (R.sup.1 O) group is (when present) preferably an oxyethylene group; x is preferably between about 0 and 8.0, and is most preferably 0; Sacc preferably represents a glucose, galactose, glucosyl or galactosyl residue, and most preferably represents a glucose residue; and z is suitably between about 0.7 and 10.0, and is most preferably between about 1.3 and 4.0. Seawater and brines suitably serve as the source of the water. Dispersions formed from these three components are viscous foams which are highly stable under the conditions typically encountered in applications of hydraulic fracturing processes.

    摘要翻译: 本发明提供了一种用于地下地层的水力压裂的方法,其包括在压裂压力下将包含悬浮在包含水,特定气态或超临界组分的流体分散体中的固体颗粒的压裂流体和选自 一类多糖类化合物。 为了本发明的目的,气态或超临界二氧化碳和气态氮,二氧化碳和C1至C3烃,及其混合物。 多糖组分包含一种或多种式RO(R1O)xSaccz的表面活性剂,其中R是碳数为约7至24的一价有机基团,R 1表示含有约2至约4个碳原子的二价烃基 碳原子,x是0至约12.0的平均值的数,Saccz表示衍生自含有5或6个碳原子的还原性糖的部分的约0.7至10.0的平均数z。 R优选表示碳数在约8至约20的烷基,烷基苯基,羟基烷基苯基或羟烷基部分; 可选的(R1O)基团(当存在时)优选为氧化乙烯基团; x优选为约0至8.0,最优选为0; Sacc优选表示葡萄糖,半乳糖,葡糖基或半乳糖基残基,最优选代表葡萄糖残基; 并且z适宜地在约0.7和10.0之间,最优选在约1.3和4.0之间。 海水和盐水适合作为水的来源。 由这三种组分形成的分散体是在水力压裂方法应用中通常遇到的条件下高度稳定的粘性泡沫。

    Gas flooding with surfactants enriched in olefin disulfonate
    16.
    发明授权
    Gas flooding with surfactants enriched in olefin disulfonate 失效
    用富含烯烃二磺酸盐的表面活性剂充气

    公开(公告)号:US4911238A

    公开(公告)日:1990-03-27

    申请号:US286397

    申请日:1988-12-19

    IPC分类号: C09K8/594 C09K8/94

    摘要: An improved process for recovering oil by injecting a mixture of noncondensible gas and gas foam surfactant into an oil-containing subterranean reservoir, the improvement provided by using a surfactant enriched in olefin disulfonate. The sulfactant may be used in either a gas drive or a gas soak process. Disulfonate-enriched gas foam surfactants and mixtures are also described.

    摘要翻译: 通过将不可冷凝气体和气体泡沫表面活性剂的混合物注入含油地下储层来回收油的改进方法,通过使用富含烯烃二磺酸盐的表面活性剂提供了改进。 表面活性剂可用于气体驱动或气体浸泡工艺。 还描述了富含二磺酸盐的气泡表面活性剂和混合物。

    Selective permeability reduction of oil-free zones of subterranean
formations
    17.
    发明授权
    Selective permeability reduction of oil-free zones of subterranean formations 失效
    地下地层无油区的选择性渗透率降低

    公开(公告)号:US4856588A

    公开(公告)日:1989-08-15

    申请号:US194658

    申请日:1988-05-16

    申请人: John K. Borchardt

    发明人: John K. Borchardt

    摘要: The mobility of fluids in substantially oil-free zones of subterranean formations is controlled by introducing a composition comprising (a) water, (b) a fluid component selected from the group consisting of carbon dioxide, nitrogen, C.sub.1 to C.sub.3 hydrocarbons, and mixtures thereof, and (c) one or more polysaccharide surfactants of the formula RO(R.sup.1 O).sub.x Sacc.sub.z, wherein R is a monovalent organic radical having a carbon number in the range from about 7 to 24; R.sup.1 represents a divalent hydrocarbon radical containing from about 2 to 4 carbon atoms; x is a number having an average value in the range from 0 to about 12; and Sacc.sub.z represents an average number z between about 0.7 and 10 of moieties derived from reducing saccharides containing 5 or 6 carbon atoms. The resulting mixture of components (a), (b), and (c) forms a dispersion, or a "foam" as that term is commonly used in the art, which is resistant to fluid flow.In certain preferred embodiments, the invention is applied to a formation having both one or more zones of high oil saturation and one or more zones which are substantially free of oil. In such embodiments, the process accomplishes a selective reduction of the permeability of a subsequently injected oil displacement or drive fluid into and through the substantially oil-free zones, without significantly reducing mobility of the drive fluid flow into and through the zones having meaningfully high oil saturation.

    摘要翻译: 通过引入包含(a)水,(b)选自二氧化碳,氮,C 1至C 3烃及其混合物的流体组分的组合物来控制地下地层基本上无油区域中流体的迁移率 ,和(c)一种或多种式RO(R1O)xSaccz的多糖表面活性剂,其中R为碳数为约7至24的一价有机基团; R1表示含有约2至4个碳原子的二价烃基; x是平均值在0至约12的范围内的数字; Saccz表示衍生自含有5或6个碳原子的还原糖的部分的约0.7至10的平均数z。 组分(a),(b)和(c)的所得混合物形成本领域通常使用的分散体或“流体”,其耐流体流动。 在某些优选实施方案中,本发明应用于具有高油饱和度的一个或多个区域和基本上不含油的一个或多个区域的地层。 在这样的实施例中,该过程实现了随后注入的油位移或驱动流体渗入基本上无油区域的渗透性的选择性降低,而不会显着降低驱动流体流入并具有有意义的高油的区域的流动性 饱和。

    Methods for stabilizing fines contained in subterranean formations
    18.
    发明授权
    Methods for stabilizing fines contained in subterranean formations 失效
    用于稳定地层中所含细粉的方法

    公开(公告)号:US4563292A

    公开(公告)日:1986-01-07

    申请号:US636943

    申请日:1984-08-02

    申请人: John K. Borchardt

    发明人: John K. Borchardt

    IPC分类号: C09K8/575 E21B43/12 E21B43/25

    摘要: A method of preventing or reducing the migration of fines in a permeable structure comprising contacting the fines with organic copolymers which can be either nonionic in a neutral media or can contain up to 95% by weight of a quaternary ammonium salt monomer.

    摘要翻译: 一种防止或减少可渗透结构中细粒迁移的方法,包括使细粒与有机共聚物接触,所述有机共聚物可以在中性介质中是非离子的,或者可以含有高达95重量%的季铵盐单体。

    Method of viscosifying aqueous fluids and process for recovery of
hydrocarbons from subterranean formations
    19.
    发明授权
    Method of viscosifying aqueous fluids and process for recovery of hydrocarbons from subterranean formations 失效
    使含水流体增稠的方法和从地层中回收烃类的方法

    公开(公告)号:US4524003A

    公开(公告)日:1985-06-18

    申请号:US483090

    申请日:1983-04-08

    申请人: John K. Borchardt

    发明人: John K. Borchardt

    摘要: The present invention relates to a method of viscosifying aqueous fluids and a viscosifying composition which when admixed with an aqueous fluid produces a viscosity increase in the fluid in excess of the additive viscosity of the individual composition components. The viscosifying composition comprises at least one member selected from the group consisting of (i) sulfonated guar and a compound comprising at least one member selected from the group consisting of xanthan gum, guar, hydroxypropyl guar, hydroxypropyl guar derivatives, hydroxyethyl cellulose and hydroxyethyl cellulose derivatives and (ii) cationic guar and a compound comprising at least one member selected from the group consisting of hydroxypropyl guar, hydroxypropyl guar derivatives, hydroxyethyl cellulose and hydroxyethyl cellulose derivatives.

    摘要翻译: 本发明涉及一种增稠水性流体和增稠组合物的方法,当与含水流体混合时,流体中的粘度增加超过单独组合物组分的添加剂粘度。 增粘组合物包含至少一种选自(i)磺化瓜尔胶和包含至少一种选自由黄原胶,瓜尔胶,羟丙基瓜尔胶,羟丙基瓜尔胶衍生物,羟乙基纤维素和羟乙基纤维素组成的组的组分 衍生物和(ii)阳离子瓜尔胶和包含选自羟丙基瓜尔胶,羟丙基瓜尔胶衍生物,羟乙基纤维素和羟乙基纤维素衍生物中的至少一种的化合物。

    Enhanced oil displacement processes and compositions
    20.
    发明授权
    Enhanced oil displacement processes and compositions 失效
    增强油位移过程和组成

    公开(公告)号:US4409110A

    公开(公告)日:1983-10-11

    申请号:US222837

    申请日:1981-01-06

    摘要: This invention provides novel aqueous fluid compositions which comprise a synergistic mixture of two classes of water dispersible or soluble polymers, i.e. (1) synthetic polymeric viscosifier and (2) polycationic organic polymer. These compositions are uniquely adapted for use in enhanced oil recovery. Addition of the polycationic organic polymer reduces the solution viscosity, increases the injectivity of the aqueous solution into low permeability formations. This reaction also reduces the shear degradation of the polymers during pumping, injection through the perforations, and during the period of relatively rapid fluid movement as the solution moves through an earthen or subterranean formation in the important zone within about a ten foot radius around the well bore. Once in an earthen formation, the polycationic organic polymer is rapidly adsorbed from the solution resulting in an increase in solution viscosity and improving the mobility ratio and also resulting in enhanced and/or increased oil recovery.

    摘要翻译: 本发明提供新的含水流体组合物,其包含两类水分散性或可溶性聚合物的协同混合物,即(1)合成聚合物增粘剂和(2)聚阳离子有机聚合物。 这些组合物独特地适用于增强采油。 加入聚阳离子有机聚合物降低溶液粘度,增加水溶液注入低渗透性地层。 该反应还降低了聚合物在泵送过程中的穿透过程中的剪切降解,以及在相对快速的流体运动期间,当溶液通过围绕井的大约十英尺半径内的重要区域中的土层或地下岩层移动时, 孔。 一旦形成土层,聚阳离子有机聚合物从溶液中快速吸附,导致溶液粘度增加并提高迁移率,并且还导致提高和/或提高的油回收率。