Gelled Hydrocarbon System and Method With Dual-Function Viscosifier/Breaker Additive
    32.
    发明申请
    Gelled Hydrocarbon System and Method With Dual-Function Viscosifier/Breaker Additive 失效
    具有双功能粘度计/断路器添加剂的凝胶烃系统和方法

    公开(公告)号:US20110111991A1

    公开(公告)日:2011-05-12

    申请号:US12616972

    申请日:2009-11-12

    IPC分类号: C09K8/64 E21B21/14

    摘要: A gelled organic-based fluid system and method of forming and using the system. The fluid system is prepared by gelling an organic solvent, a viscoelastic surfactant, and a nitrogen compound having a free electron pair such as urea in an amount effective to both increase viscosity and increase a rate of breaking the viscosity, relative to the gelled system without the nitrogen compound. In a further aspect, the method is used to treat a well penetrating a subterranean formation, for example, in a coiled tubing cleanout, or the like.

    摘要翻译: 凝胶状有机基流体系统及其形成和使用方法。 流体系统是通过将有机溶剂,粘弹性表面活性剂和具有自由电子对的氮化合物(例如尿素)以相对于不凝胶体系增加粘度和提高粘度的速率有效的量而制备的,没有 氮化合物。 在另一方面,该方法用于处理穿透地下地层的井,例如在连续油管清理等中。

    Viscoelastic surfactant rheology modifier
    33.
    发明授权
    Viscoelastic surfactant rheology modifier 有权
    粘弹性表面活性剂流变改性剂

    公开(公告)号:US07897547B1

    公开(公告)日:2011-03-01

    申请号:US12643475

    申请日:2009-12-21

    申请人: Lijun Lin Leiming Li

    发明人: Lijun Lin Leiming Li

    IPC分类号: C09K8/584

    摘要: A method for shortening the shear recovery time of cationic, nonionic, anionic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of an amphiphilic polymeric rheology enhancer. The rheology enhancer is a grafted polymer of polydimethylsiloxane, for example polydimethylsiloxanes grafted with ethylene/propylene glycol. The rheology enhancer also increases fluid viscosity and very low rheology enhancer concentration is needed.

    摘要翻译: 一种通过加入有效量的两亲性聚合物流变增强剂来缩短阳离子,非离子,阴离子,两性离子和两性粘弹性表面活性剂流体体系的剪切恢复时间的方法。 流变增强剂是聚二甲基硅氧烷的接枝聚合物,例如用乙烯/丙二醇接枝的聚二甲基硅氧烷。 流变增强剂还增加了流体粘度,并且需要非常低的流变学增强剂浓度。

    Internal Breakers for Viscoelastic Surfactant Fluids
    34.
    发明申请
    Internal Breakers for Viscoelastic Surfactant Fluids 失效
    粘弹性表面活性剂流体的内部破碎机

    公开(公告)号:US20080269081A1

    公开(公告)日:2008-10-30

    申请号:US12122121

    申请日:2008-05-16

    IPC分类号: C09K8/68

    摘要: Internal breakers are given that break fluids viscosified with non-polymeric viscosifiers such as viscoelastic surfactants, inside formation pores. The breakers are polyols, for example natural and synthetic sugars, monoalcohols, and mixtures of the two. The sugars may be ketones and aldehydes. The sugars are also breaker aides for oxidizing agents used as breakers. Methods of using the breakers and breaker aides in oilfield treatment fluids are given.

    摘要翻译: 给出了内部断路器,使用非聚合增粘剂(如粘弹性表面活性剂,内部形成孔隙)粘稠的流体破裂。 断路器是多元醇,例如天然和合成的糖,一元醇和两者的混合物。 糖可以是酮和醛。 这些糖也是用作破碎剂的氧化剂的破碎剂助剂。 给出了在油田处理液中使用断路器和断路器助剂的方法。

    Hydraulic fracturing composition, method for making and use of same

    公开(公告)号:US09828844B2

    公开(公告)日:2017-11-28

    申请号:US14169698

    申请日:2014-01-31

    IPC分类号: E21B43/267 C09K8/68

    摘要: A hydraulic fracturing composition includes: a superabsorbent polymer in an expanded state; a plurality of proppant particles disposed in the superabsorbent polymer; an additive comprising a surfactant, a viscose polymer, or a combination thereof, and a fluid to expand the superabsorbent polymer into the expanded state. A process for disposing a plurality of proppant particles in a fracture comprises: disposing a hydraulic fracturing composition in a downhole environment; forming a fracture; disposing the hydraulic fracturing composition in the fracture; breaking the superabsorbent polymer after forming the fracture; and releasing the plurality of proppant particles from superabsorbent polymer. The process also comprises injecting a proppant-free fluid and a proppant-containing fluid in an alternating order into a subterranean formation.