| 摘要 |
A disconnector drill string 200 has an uphole section 202 and a downhole section 204 coupled together by a disconnection sub 100, an operative length and an internal fluid conduit that extends along its operative length. The disconnection sub 100 is operable to receive wirelessly a pre-designated command signal 220, to selectively couple the uphole section 202 and the downhole section 204 together, and to selectively uncouple the uphole section 202 and the downhole section 204 from one another. A method for using the disconnector drill string 200 in a well bore includes the steps of introducing the disconnector drill string 200 into the well bore, transmitting wirelessly the pre-designated command signal 220 to the disconnection sub 100 such that the disconnection sub 100 selectively operates to uncouple the uphole section 202 of the disconnector drill string 200 from the downhole section 204 of the disconnector drill string, and removing the uphole section 202 of the disconnector drill string from the well bore. |
