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1.发明申请SYSTEMS AND METHODS FOR MITIGATING ANNULAR PRESSURE BUILDUP IN AN OIL OR GAS WELL 有权用于减轻油气中的压力建筑物的系统和方法公开(公告)号：US20100122811A1
公开(公告)日：2010-05-20
申请号：US12272924
申请日：2008-11-18
IPC分类号： E21B41/00
CPC分类号： E21B17/1078 , E21B34/063
摘要： The present invention is generally directed to systems and methods for mitigating temperature-related pressure buildup in the trapped annulus of an oil or gas well, wherein such systems and methods employ production and/or tieback casing having one or more pressure mitigating chambers., and wherein such chambers make use of pistons, valves, and burst disks to mitigate pressure increases within the annulus. Such systems and methods can provide advantages over the prior art, particularly with respect to offshore wells.
摘要翻译： 本发明总体上涉及用于减轻油井或气井的被困环境中与温度相关的压力累积的系统和方法，其中这种系统和方法采用具有一个或多个减压室的生产和/或连接套管，以及 其中这种室使用活塞，阀和爆破盘来减轻环形空间内的压力增加。 这样的系统和方法可以提供优于现有技术的优点，特别是关于近海井。
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2.发明授权Systems and methods for mitigating annular pressure buildup in an oil or gas well 有权用于减轻油井或气井中的环形压力累积的系统和方法公开(公告)号：US08066074B2
公开(公告)日：2011-11-29
申请号：US12272924
申请日：2008-11-18
IPC分类号： E21B34/08
CPC分类号： E21B17/1078 , E21B34/063
摘要： The present invention is embodied in systems and methods for mitigating temperature-related pressure buildup in the trapped annulus of an oil or gas well, wherein such systems and methods employ production and/or tieback casing having one or more pressure mitigating chambers, and wherein such chambers make use of pistons, valves, and burst disks to mitigate pressure increases within the annulus.
摘要翻译： 本发明体现在用于减轻油井或气井的被困环境中与温度相关的压力累积的系统和方法中，其中这种系统和方法采用具有一个或多个减压室的生产和/或回接套管，并且其中 室使用活塞，阀和爆破盘来减轻环形空间内的压力增加。
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公开(公告)号：US5368110A
公开(公告)日：1994-11-29
申请号：US142562
申请日：1993-10-28
申请人： Michael R. French
发明人： Michael R. French
IPC分类号： E21B4/00 , E21B17/04 , E21B17/07 , E21B10/36 , E21B17/046
摘要： A rotary bearing downhole sub has an outer housing adapted to be connected to an upper drill string and to receive therein an inner mandril adapted to be connected to a lower drill string. Both the outer housing and the inner mandril are provided with radially directed splines which, when brought into meshed engagement, allow transmission of rotary motion between the upper and lower drill strings and through the sub.
摘要翻译： 旋转轴承井下辅具有适于连接到上钻柱并且在其中容纳适于连接到下钻柱的内心轴的外壳。 外壳和内筒都设置有径向定向的花键，当其进入啮合状态时，允许在上下钻杆之间和通过副杆之间传递旋转运动。
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