发明名称 |
Downhole actuating apparatus |
摘要 |
<p>A mechanical counting device for actuating a plurality of output devices, the device comprising: linear indexing means adapted to count a plurality of actuating signals and to cause actuation of the output devices when a predetermined number of actuating signals for each output device has been received, wherein the mechanical counting device is adapted to cause actuation of a particular output device when a different predetermined number of actuating signals has been received such that the output devices are sequentially actuatable.</p> |
申请公布号 |
AU2011231339(B2) |
申请公布日期 |
2015.01.22 |
申请号 |
AU20110231339 |
申请日期 |
2011.03.10 |
申请人 |
PETROWELL LIMITED |
发明人 |
SMITH, COLIN;PURKIS, DANIEL GEORGE |
分类号 |
E21B23/04;E21B21/10;E21B23/00;E21B34/14 |
主分类号 |
E21B23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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