发明名称 |
ADVANCED DRILL STRING COMMUNICATION SYSTEM, COMPONENTS AND METHODS |
摘要 |
A drill string communication system is described. An uphole transceiver can couple a signal onto the drill string at a power that is always greater that a selectable power for a downhole signal. Communication from a drill rig to an inground tool can be re-initiated using a maximum uphole transmit power of an uphole transceiver. A procedure can establish a new set of transmission parameters for a drill string signal to establish communication between the drill rig and the inground tool. The system can include a walkover locator that receives an active/inactive status-controlled electromagnetic locating signal. Responsive to a locating signal degradation, a reconfiguration command can modify the locating signal. The uphole transceiver and a downhole transceiver can automatically modify at least one parameter of a downhole signal. An uphole receiver can apply a compensation response to a transferred signal to compensate for a drill string channel transfer function. |
申请公布号 |
EP2800871(A1) |
申请公布日期 |
2014.11.12 |
申请号 |
EP20130733871 |
申请日期 |
2013.01.04 |
申请人 |
MERLIN TECHNOLOGY, INC. |
发明人 |
CHAU, ALBERT W.;LAM, LOC VIET |
分类号 |
E21B47/12;E21B47/024;E21B47/13;H04B3/04;H04B15/00 |
主分类号 |
E21B47/12 |
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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