LOW ALLOY STEELS WITH SUPERIOR CORROSION RESISTANCE FOR OIL COUNTRY TUBULAR GOODS
    1.
    发明申请
    LOW ALLOY STEELS WITH SUPERIOR CORROSION RESISTANCE FOR OIL COUNTRY TUBULAR GOODS 审中-公开
    具有优良耐腐蚀性的低合金钢,适用于油田国家管件

    公开(公告)号:WO2008156526A1

    公开(公告)日:2008-12-24

    申请号:PCT/US2008/005730

    申请日:2008-05-02

    CPC classification number: C22C38/02 C22C38/04 C22C38/12 C22C38/14 C22C38/18

    Abstract: The present application describes a steel composition that provides enhanced corrosion resistance. This steel composition includes one of vanadium in an amount of 1 wt% to 9 wt%, titanium in an amount of about 1 wt% to 9 wt%, and a combination of vanadium and titanium in an amount of 1 wt% to about 9 wt%. In addition, the steel composition includes carbon in an amount of 0.03 wt% to about 0.45 wt%, manganese in an amount up to 2 wt% and silicon in an amount up to 0.45 wt%. In one embodiment, the steel composition includes a microstructure of one of the following: ferrite, martensite, tempered martensite, dual phase ferrite and martensite, and dual phase ferrite and tempered martensite. Further, the present application describes a method for processing the steel composition and use of equipment such as oil country tubular goods, fabricated with the steel composition.

    Abstract translation: 本申请描述了提供增强的耐腐蚀性的钢组合物。 该钢组合物包括1重量%至9重量%的钒中的一种,约1重量%至9重量%的钛,以及1重量%至约9重量%的钒和钛的组合 重量%。 此外,钢组合物包括0.03重量%至约0.45重量%的碳,最多达2重量%的锰和至多0.45重量%的硅。 在一个实施方案中,钢组合物包括以下之一的微结构:铁素体,马氏体,回火马氏体,双相铁素体和马氏体,以及双相铁素体和回火马氏体。 此外,本申请描述了用钢组合物制造的用于加工钢组合物和使用诸如油井筒状物品的设备的方法。

    PLUNGER LIFT SYSTEMS AND METHODS
    2.
    发明申请
    PLUNGER LIFT SYSTEMS AND METHODS 审中-公开
    PLUNGER LIFT系统和方法

    公开(公告)号:WO2011002562A1

    公开(公告)日:2011-01-06

    申请号:PCT/US2010/035627

    申请日:2010-05-20

    CPC classification number: E21B43/121 Y10T137/0491

    Abstract: The present invention discloses apparatuses, systems, and methods for operating a gas well. Some embodiments include a plunger apparatus configured to fall through a continuous water phase (including water slugs) in a gas producing well by overcoming pressure and drag 5 forces from the water by having a sufficient mass, hydrodynamic profile, and sufficiently large area for passage of the continuous water. In one embodiment, a plunger body and plug mechanism are provided, wherein the plug mechanism has open and closed positions, which may be automatically changed or controlled by a surface or other control system, and wherein the plunger body and plug may be a physically integrated one-piece system, or an interoperable two piece system.

    Abstract translation: 本发明公开了用于操作气井的装置,系统和方法。 一些实施例包括柱塞装置,该柱塞装置被配置为通过克服压力并通过具有足够的质量,流体动力学分布和足够大的面积来通过克服压力从水中拖曳5个力,从而在气体产生井中通过连续的水相(包括水lug) 连续的水。 在一个实施例中,提供了柱塞体和塞子机构,其中塞子机构具有打开和关闭的位置,其可以由表面或其它控制系统自动地改变或控制,并且其中柱塞体和塞可以是物理上的 单件系统或可互操作的两件式系统。

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