专利名称：Ball-activated mechanism for controlling the
operation of a downhole tool
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anqu发明人：Paul Bernard Lee嫩芽是什么意思
5288申请号：US11561218
申请日：20061117
公开号：US07673708B2
公开日：
里约热内卢英文20100309
专利内容由知识产权出版社提供
专利附图：
摘要：A ball-activated mechanism adapted to be incorporated in a drillstring and to control the activation, and de-activation of a downhole tool. The mechanism includes a ball at that receives surface launched activation balls and moves to activate or
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deactivate the downhole tool, an indexable latching device, and a linearly displaceable actuator co-operable with the indexable latching device, the actuator allowing pressure fluid communication to activate the tool when the actuator is in its activating position. Upon launch of a first activation ball, the ball at moves so that the latching device carries out indexing movement to a latched position and moves the actuator moves to its activating position so that the downhole tool can be activated. Upon launch of a cond activation ball, the latching device undergoes return movement and returns the ball at to its first position and the actuator moves to deactivate the downhole tool.
申请人：Paul Bernard Lee
地址：15 Blue Ridge Place Calgary, Alberta T3L 2NS CA
哈佛大学分数线国籍：CA新视野大学英语2答案
代理机构：Kirton & McConkie
英汉在线互译
代理人：Evan R. Witt
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