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    • 2. 发明申请
    • COMPOSITE BOW CENTRALIZER
    • 复合骨中心
    • WO2012101401A2
    • 2012-08-02
    • PCT/GB2012/000066
    • 2012-01-24
    • HALLIBURTON ENERGY SERVICES, INC.LIVELY, GlennLEVIE, DavidMUELLER, DietmarWEBER, ThorstenTURNER, Craig Robert
    • LIVELY, GlennLEVIE, DavidMUELLER, DietmarWEBER, ThorstenTURNER, Craig Robert
    • E21B17/10
    • E21B17/1028E21B17/1078
    • A method comprising providing a centralizer disposed about a wellbore tubular, wherein the centralizer comprises a first collar, a second collar, a plurality of bow springs coupling the first collar to the second collar, and a plurality of particulates disposed on an outer surface of at least one bow spring, wherein one or more of the first collar, the second collar, and the bow springs comprise a composite material, and placing the wellbore tubular in a wellbore disposed in a subterranean formation. A method comprising providing a centralizer disposed about a wellbore tubular, wherein the wellbore tubular comprises a stop collar, a protrusion, or an upset on either end of the centralizer, and wherein the centralizer comprises three or more collars, a plurality of bow springs comprising a plurality of portions of bow springs, wherein each portion of bow springs couples two adjacent collars, and wherein one or more of the collars and the bow springs comprise a composite material, and placing the wellbore tubular in a wellbore disposed in a subterranean formation.
    • 一种方法,包括提供围绕井筒管设置的扶正器,其中所述扶正器包括第一套环,第二套环,将所述第一套环联接到所述第二套环的多个弓形弹簧,以及设置在所述第二套环的外表面上的多个微粒 至少一个弓形弹簧,其中所述第一套环,所述第二套环和所述弓形弹簧中的一个或多个包括复合材料,以及将所述井筒管放置在设置在地下地层中的井眼中。 一种方法,包括提供围绕井眼管状设置的扶正器,其中所述井筒管道包括在所述扶正器的任一端上的止动环,突起或镦锻,并且其中所述扶正器包括三个或更多个轴环,多个弓形弹簧包括 弓弹簧的多个部分,其中弓形弹簧的每个部分耦合两个相邻的凸环,并且其中一个或多个轴环和弓形弹簧包括复合材料,并将井筒管放置在设置在地下地层中的井眼中。