| 摘要 |
<p>A method for actuating or installing downhole equipment in a wellbore using non acoustic signals (e.g. radio frequency signals) to locate, inventory, install, or actuate one downhole structure in relation to another downhole structure is shown in Figure 3. The method comprises the steps of: (a) providing a first downhole structure (12) that comprises a non acoustic (e.g., radio frequency) identification transmitter unit (28) that stores an identification code and transmits a signal corresponding to the identification code; (b) providing a second downhole structure (32) that comprises a non acoustic receiver unit (34) that can receive the signal transmitted by the non acoustic identification transmitter unit, wherein one of the first downhole structure and the second downhole structure is secured at a given location in a subterranean wellbore, and the other is moveable in the wellbore; (c) placing the second downhole structure in close enough proximity to the first downhole structure so that the non acoustic receiver unit can receive the signal transmitted by the non acoustic identification transmitter unit; (d) comparing the identification code from the transmitter with a target code in the receiver; and (e) if the codes match, actuating or installing a downhole structure.</p> |
