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发明授权
CN105026516B 纤维增强密封元件 失效 - 权利终止

纤维增强密封元件
摘要：
公开了一种用于制造用于在旋转钻井系统中使用的旋转控制设备的密封元件的方法。所述密封元件具有孔部、基部区域和鼻形区域。所述方法包括：提供用于所述密封元件的模具，所述密封元件用于所述旋转控制设备；将第一浓度下的纤维添加到含有聚氨酯的第一液态弹性体材料；将具有第一浓度的纤维的所述第一液态弹性体材料放入所述模具；将第二浓度下的纤维添加到含有聚氨酯的第二液态弹性体材料；将具有第二浓度的纤维的所述第二液态弹性体材料放入所述模具；加热所述模具中的所述纤维和所述液态弹性体；以及形成具有孔部、具有第一浓度的纤维的基部区域和具有第二浓度的纤维的鼻形区域的密封元件。
摘要（英）：

A method for making a sealing element for a rotating control device used in rotary drilling systems is disclosed. The sealing element has a bore, a base region, and a nose region. The method comprises providing a mold for the sealing element for the rotating control device, adding fibers at a first concentration to a first liquid elastomer material containing polyurethane, placing the first liquid elastomer material having a first concentration of fibers into the mold, adding fibers at a second concentration to a second liquid elastomer material containing polyurethane, placing the second liquid elastomer material having a second concentration of fibers into the mold, heating the fibers and liquid elastomer in the mold, and forming a sealing element having a bore, a base region with a first concentration of fibers, and a nose region having a second concentration of fibers.

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