Crosshead bushing systems and methods

    公开(公告)号:US12006931B2

    公开(公告)日:2024-06-11

    申请号:US18000991

    申请日:2021-06-15

    Abstract: A reciprocating pump includes a fluid section that includes fluid-displacing members and a power section that includes crossheads coupled to a respective fluid-displacing member. The power section actuates the fluid section by actuating the crossheads through respective crosshead bores formed through the power section. The power section also includes structural members, pairs of support plates, and pairs of arcuate crosshead sections secured in place between the structural members against a respective pair of support plates. Each pair of the arcuate guide sections comprises a top section and a bottom section that form a portion of a respective crosshead bore. Each pair of the arcuate crosshead guide sections are also secured in place using clamping segments secured to edges of windows of the structural members by bolts extending through interior passages of the clamping segments and having threads that mate with threaded holes extending into the edges of the windows.

    Apparatus and method for oilfield material delivery
    15.
    发明授权
    Apparatus and method for oilfield material delivery 有权
    油田物料输送装置及方法

    公开(公告)号:US09133701B2

    公开(公告)日:2015-09-15

    申请号:US14042188

    申请日:2013-09-30

    CPC classification number: E21B43/267

    Abstract: An embodiment of a method of operating at least two pressure vessels to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating a pressure vessel from the high-pressure line, introducing, under low-pressure conditions, particulate solids into the pressure vessel through a particulate solids inlet aperture, a second operating cycle comprising: providing high-pressure flow into the pressure vessel, and providing a high-pressure slurry flow from the pressure vessel into the high-pressure line. The method further comprises causing a pressure vessel to operate in the first operating cycle while operating a pressure vessel in the second operating cycle, and synchronizing switching a first vessel from the first operating to a second operating cycle and switching a second vessel from the second operating cycle to the first operating cycle such that at least one of the vessels is operating in the second operating cycle.

    Abstract translation: 操作至少两个压力容器以将颗粒浆料注入高压管线的方法的实施例包括第一操作循环,包括:将高压管线与压力容器隔离,在低压条件下, 颗粒状固体通过颗粒固体入口孔进入压力容器,第二操作循环包括:向压力容器提供高压流,以及提供从压力容器进入高压管线的高压浆料流。 该方法还包括使压力容器在第一操作循环中操作,同时在第二操作循环中操作压力容器,以及将第一容器从第一操作切换到第二操作循环并将第二容器从第二操作切换 循环到第一操作循环,使得至少一个容器在第二操作循环中操作。

    PUMP ASSEMBLY
    19.
    发明申请
    PUMP ASSEMBLY 审中-公开

    公开(公告)号:US20170097000A1

    公开(公告)日:2017-04-06

    申请号:US15383051

    申请日:2016-12-19

    Abstract: A pump has power and fluid ends wherein one or more of the drive rods are offset from the plungers. An offset coupler connects a drive rod to an offset plunger. A method includes connecting the offset power end to the standard fluid end using the offset coupler. A repair and maintenance system includes inventories of standard fluid ends, power ends including offset power ends, and adapters, and a population of in service pumps, whereby the pumps can be repaired by removing and replacing the power ends from inventory using the adaptor where the replacement power end unit is offset. Another method includes removing and replacing the power end with one from the inventory, wherein the adapter is used in the case of an offset power end, whereby the offset and standard power ends may be used interchangeably.

Patent Agency Ranking