GALACTOMANNAN BASED WELL TREATING FLUIDS
    52.
    发明申请
    GALACTOMANNAN BASED WELL TREATING FLUIDS 有权
    基于GALACTMANNAN的井下处理流体

    公开(公告)号:US20150060067A1

    公开(公告)日:2015-03-05

    申请号:US14522326

    申请日:2014-10-23

    IPC分类号: E21B43/26 E21B43/267 C09K8/68

    摘要: A well fracturing fluid is shown which includes an aqueous base fluid, a hydratable polymer, such as a guar gum, and a suitable crosslinking agent for crosslinking the hydratable polymer to form a polymer gel. The hydratable polymer has a higher molecular weight which is achieved by improvements in the processing of the guar split. The higher molecular weight polymer provides improved performance in well fracturing operations.

    摘要翻译: 示出了一种井压裂流体,其包括水性基础流体,可水合的聚合物,例如瓜尔胶,以及用于交联可水合聚合物以形成聚合物凝胶的合适的交联剂。 可水合聚合物具有较高的分子量,其通过改进瓜尔胶的加工来实现。 较高分子量聚合物在井压裂操作中提供了改进的性能。

    Breaker and displacement fluid and method of use
    53.
    发明授权
    Breaker and displacement fluid and method of use 有权
    断路器和排量流体及其使用方法

    公开(公告)号:US08932999B2

    公开(公告)日:2015-01-13

    申请号:US12032879

    申请日:2008-02-18

    摘要: A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.

    摘要翻译: 公开了在生产油或气体之前清洁井眼的方法,其中已经用形成反转乳液滤饼的反转乳液钻井泥浆钻了井筒。 该方法可以包括以下步骤:将破碎剂流体循环到井眼中,其中破碎剂流体包括含水流体,和亚氨基二乙酸或其盐。 任选地,还包括酸缓冲剂和加权时代。 配制破碎剂流体,使得在预定时间段之后,存在于井眼或井眼面上的滤饼基本上降解。 其他方法还可以包括用形成水基滤饼的水基钻井泥浆钻井井,其中该方法可以包括以下步骤:将破坏剂流体循环到井筒中,其中破碎剂流体可以包括水性流体, 和亚氨基二乙酸或其盐。

    Particles slurried in oil for viscoelastic surfactant gelled fluids
    54.
    发明授权
    Particles slurried in oil for viscoelastic surfactant gelled fluids 有权
    用于粘弹性表面活性剂凝胶液的油中的颗粒

    公开(公告)号:US08921285B2

    公开(公告)日:2014-12-30

    申请号:US13596937

    申请日:2012-08-28

    摘要: Fluids viscosified with viscoelastic surfactants (VESs) may have their fluid loss properties improved with the presence of at least one mineral oil slurried together in combination with at least one particulate fluid loss control agent that may be an alkaline earth metal oxides, alkaline earth metal hydroxides, transition metal oxides, transition metal hydroxides, and mixtures thereof. The mineral oil having the particulate fluid loss control agents slurried within it may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the slurry is added to the fluid after it has been substantially gelled. The mineral oil/particulate slurry may enhance the ability of a particulate fluid loss control agent to reduce fluid loss. The presence of the mineral oil may also eventually reduce the viscosity of the VES-gelled aqueous fluid.

    摘要翻译: 用粘弹性表面活性剂(VES)粘稠的流体可以使至少一种矿物油与至少一种颗粒状流体损失控制剂(其可以是碱土金属氧化物,碱土金属氢氧化物 过渡金属氧化物,过渡金属氢氧化物及其混合物。 具有在其内淤浆的颗粒状流体损失控制剂的矿物油最初可以将液滴分散在流体的内部不连续相中。 在一个非限制性实施方案中,在已经基本上凝胶化之后将浆料加入到流体中。 矿物油/颗粒浆料可以增强颗粒状流体损失控制剂减少流体损失的能力。 矿物油的存在也可能最终降低VES-凝胶水溶液的粘度。

    Foaming agent for subterranean formations treatment, and methods of use thereof
    55.
    发明授权
    Foaming agent for subterranean formations treatment, and methods of use thereof 有权
    用于地下地层处理的发泡剂及其使用方法

    公开(公告)号:US08916507B2

    公开(公告)日:2014-12-23

    申请号:US13167808

    申请日:2011-06-24

    摘要: A wellbore treatment fluid is formed from an aqueous medium, a gas component, a viscosifying agent, and a surfactant. The surfactant is represented by the chemical formula: [R—(OCH2CH2)m—Oq—YOn]pX wherein R is a linear alkyl, branched alkyl, alkyl cycloaliphatic, or alkyl aryl group; O is an oxygen atom; Y is either a sulfur or phosphorus atom; m is 1 or more; n is a integer ranging from 1 to 3; p is a integer ranging from 1 to 4; q is a integer ranging from 0 to 1; and X is a cation. The fluid may be used in treating a subterranean formation penetrating by a wellbore by introducing the fluid into the wellbore. The fluid may be used in fracturing a subterranean formation penetrated by a wellbore by introducing the fluid into the formation at a pressure equal to or greater than the fracture initiation pressure.

    摘要翻译: 井眼处理流体由水性介质,气体成分,增粘剂和表面活性剂形成。 表面活性剂由化学式表示:[R-(OCH 2 CH 2)m -Oq-YOn] pX其中R是直链烷基,支链烷基,烷基脂环族或烷基芳基; O是氧原子; Y是硫或磷原子; m为1以上; n为1〜3的整数; p是1至4的整数; q是0到1的整数; X是阳离子。 流体可以用于通过将流体引入井眼来处理穿透井眼的地下地层。 该流体可用于通过在等于或大于断裂起始压力的压力下将流体引入地层来压裂井眼穿透的地下岩层。

    Degradation of Polylactide in a Well Treatment
    56.
    发明申请
    Degradation of Polylactide in a Well Treatment 审中-公开
    聚乳酸在井身处理中的降解

    公开(公告)号:US20140367099A1

    公开(公告)日:2014-12-18

    申请号:US13919071

    申请日:2013-06-17

    IPC分类号: E21B43/16

    摘要: Methods of treating a portion of a well include the steps of: (A) depositing a solid particulate into the portion of the well, wherein the solid particulate comprises an aliphatic polyester, preferably a polylactide; and (B) contacting the particulate deposited in the portion of the well with a treatment fluid comprising: (i) water; (ii) a source of a strong alkali; and (iii) a source of a strong oxidizer. The steps of depositing and contacting can be with a single treatment fluid or separate treatment fluids.

    摘要翻译: 处理井的一部分的方法包括以下步骤:(A)将固体颗粒沉积到井的部分中,其中固体颗粒包含脂族聚酯,优选聚丙交酯; 和(B)将沉积在井的部分中的颗粒与处理流体接触,所述处理流体包括:(i)水; (ii)强碱源; 和(iii)强氧化剂的来源。 沉积和接触的步骤可以是单一处理流体或单独的处理流体。

    Compositions, Systems and Methods of Making Coated Additive Components
    57.
    发明申请
    Compositions, Systems and Methods of Making Coated Additive Components 有权
    涂层添加剂组分的组成,系统和方法

    公开(公告)号:US20140364345A1

    公开(公告)日:2014-12-11

    申请号:US14271012

    申请日:2014-05-06

    摘要: Compositions, systems and methods for the prevention or reduction of clumping or sticking of particulate hydraulic fracturing chemical additives. In preferred examples the particulate hydraulic fracturing chemical additives may be coated with, for example, a coating comprising a polymeric component and with or without silica. Inorganic flow agents (IFA) may be applied to the exterior surface of the particulate hydraulic fracturing chemical additives to prevent hardening or clumping of the additives upon storage. Preferably the coating is permeable, but insoluble in an aqueous medium, whereupon the additive components are released into the medium.

    摘要翻译: 用于防止或减少颗粒状水力压裂化学添加剂的结块或粘结的组合物,系统和方法。 在优选实施例中,颗粒水硬压裂化学添加剂可以用例如包含聚合物组分的涂层和有或无二氧化硅涂覆。 无机流动剂(IFA)可以施加到颗粒状水力压裂化学添加剂的外表面,以防止添加剂在储存时硬化或凝结。 优选地,涂层是可渗透的,但不溶于水性介质中,因此添加剂组分被释放到介质中。

    VISCOSIFIED BREAKER FLUID COMPOSITIONS FOR EXTENDED DELAY IN FILTERCAKE REMOVAL AT HIGH TEMPERATURE
    58.
    发明申请
    VISCOSIFIED BREAKER FLUID COMPOSITIONS FOR EXTENDED DELAY IN FILTERCAKE REMOVAL AT HIGH TEMPERATURE 审中-公开
    粘度过大的断路器液体组合物,用于在高温下过滤器中延长延迟

    公开(公告)号:US20140318788A1

    公开(公告)日:2014-10-30

    申请号:US13871499

    申请日:2013-04-26

    摘要: The present invention relates to a method of treating a subterranean formation. The present invention also relates to a method of delivering an acid to a subterranean formation. The methods include obtaining or providing a composition that includes filter cake breaker, viscosifier, corrosion inhibitor, and pH buffering agent. The methods also include contacting the composition with a subterranean material downhole. The present invention also relates to a composition for the treatment of a subterranean formation. The composition includes: filter cake breaker, viscosifier, corrosion inhibitor, pH buffering agent, and at least one of drilling fluid, stimulation fluid, fracturing fluid, spotting fluid, clean-up fluid, production fluid, completion fluid, remedial treatment fluid, abandonment fluid, pill, acidizing fluid, cementing fluid, and packer fluid.

    摘要翻译: 本发明涉及处理地层的方法。 本发明还涉及将酸递送到地层的方法。 所述方法包括获得或提供包括滤饼破碎剂,增粘剂,缓蚀剂和pH缓冲剂的组合物。 所述方法还包括将组合物与井下的地下物质接触。 本发明还涉及一种用于处理地层的组合物。 组合物包括:滤饼破碎剂,增粘剂,缓蚀剂,pH缓冲剂,以及钻井液,刺激流体,压裂液,点样液,净化液,生产流体,完井液,补救处理液,废弃物中的至少一种 流体,丸剂,酸化液,固井液和封隔器流体。

    Methods and Compositions for In Situ Microemulsions
    59.
    发明申请
    Methods and Compositions for In Situ Microemulsions 审中-公开
    原位微乳液的方法和组合

    公开(公告)号:US20140090849A1

    公开(公告)日:2014-04-03

    申请号:US14037017

    申请日:2013-09-25

    IPC分类号: C09K8/584 E21B43/16 C09K8/536

    摘要: A plurality of first VES micelles may be converted into second VES micelles for subsequent formation of an in situ microemulsion downhole. The in situ microemulsion may include at least a portion of second VES micelles, e.g. spherical micelles, and a first oil-based internal breaker to initially aid in breaking the VES gelled aqueous fluid. The in situ microemulsion may increase the rate of flowback of an internally broken VES treatment fluid, increase the volume of treatment fluid recovered, increase the relative permeability or decrease water saturation of a hydrocarbon stream, e.g. oil, gas, and the like; reduce capillary pressure and water-block in the reservoir; enhance the solubilization and dispersion of VES molecules, internal breakers, and/or internal breaker by-products produced when breaking a VES gel; reduce the interfacial tension and/or the contact angle at the fluid-rock interface, reduce the water/oil interfacial tension, keep the reservoir surfaces water-wet, etc.

    摘要翻译: 多个第一VES胶束可以转化成第二VES胶束,用于随后在井下形成原位微乳液。 原位微乳液可以包括第二VES胶束的至少一部分,例如。 球形胶束和第一种基于油的内部破碎剂,以最初帮助破坏VES胶凝的含水流体。 原位微乳液可以增加内部破裂的VES处理流体的回流速率,增加回收的处理流体的体积,增加烃流的相对渗透率或降低水饱和度,例如。 油,气等; 降低储层中的毛细管压力和水分; 增强在破坏VES凝胶时产生的VES分子,内部破碎剂和/或内部破碎剂副产物的溶解和分散; 降低流体 - 岩石界面处的界面张力和/或接触角,减少水/油界面张力,保持储层表面水润等。