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    • 2. 发明申请
    • DEBRIS COLLECTION DEVICE WITH ENHANCED CIRCULATION FEATURE
    • DEBRIS收集装置与增强循环特征
    • WO2012082466A3
    • 2012-09-07
    • PCT/US2011063500
    • 2011-12-06
    • BAKER HUGHES INCLYNDE GERALD D
    • LYNDE GERALD D
    • E21B37/08E21B37/00
    • E21B37/10
    • A debris cleanup tool uses an eductor principle to induce flow into a lower end to bring debris into a housing where the debris will either settle out or be screened out and the remaining fluid drawn up into the eductor with motive force for the eductor coming from clean fluid pumped down a tubular string from the surface. The eductor performance is enhanced with a surrounding sleeve on the eductor outlet that directs eductor exhaust flow into an annular passage oriented in a downhole direction. The exterior of the sleeve has passages to allow some of the flow to go uphole while the sleeve wall has ports through it to allow flow in the annular passage to cut through to outside the sleeve for passage uphole or downhole.
    • 碎片清理工具使用喷射器原理来引导流入下端以将碎屑带入壳体中,其中碎屑将沉淀或被筛分,并且剩余的流体用动力从喷射器中排出到喷射器中 液体从表面向下抽出一根管状的管柱。 喷射器性能通过喷射器出口上的周围套筒增强,其将喷射器排气流引导到在井下方向定向的环形通道中。 套筒的外部具有通道,以允许一些流动在井上,同时套管壁具有通过其的端口,以允许在环形通道中流动以切穿到套管外部以通过井下或井下。
    • 3. 发明申请
    • SUBTERRANEAN CUTTING TOOL STRUCTURE TAILORED TO INTENDED USE
    • 专用切割工具结构定制使用
    • WO2012047406A4
    • 2012-06-21
    • PCT/US2011049423
    • 2011-08-26
    • BAKER HUGHES INCLYNDE GERALD D
    • LYNDE GERALD D
    • E21B29/00
    • E21B10/43E21B29/00
    • A mill cutting structure is differently configured in three zones. Those zones are the center, the outer edge and in between. At the center has highly wear resistant material that has good temperature bond strength and high impact resistance. The outer periphery can have a material that is highly resistant to wear and impact. In between can be inserts such as used in the Metal Muncher® mills using sintered carbide shapes that resist tracking and create a chipping rather than a grinding action. The shapes should have high edge retention capability and shapes such as a double sided pyramid can be used. The wear patterns of prior designs are addressed to allow longer and faster milling of the fish.
    • 铣削切割结构在三个区域中被不同地配置。 那些区域是中心,外边缘和中间。 在中心处具有耐磨性好的材料,具有良好的温度粘结强度和高抗冲击性。 外周可以具有高耐磨损和耐冲击的材料。 其间可以是诸如在使用金属Muncher®轧机中的刀片,其使用烧结的碳化物形状,其抵抗跟踪并产生切屑而不是磨削动作。 形状应具有高边缘保持能力,可以使用双面金字塔等形状。 现有设计的磨损模式旨在允许更长时间和更快速地研磨鱼。