| 摘要 |
<p>Method and apparatus for recovery of data in an oil or gas well having a well bore (20a) for passing fluid (54), transversely across a side (29a-29b) of the well bore, at a down hole location (29a-29b) of the well bore and longitudinally in the well bore, between a geological formation (44) located at the down hole location and a top portion (22) of the well bore. A sensor (30) senses, substantially at the down hole location, a parameter of the fluid. A transmitter (28) transmits into the well bore, data signals which represent the sensed parameter. A receiver (34) and a flexible line (36) are lowered in the well bore separate from the sensor and transmitter, while the receiver is suspended from the flexible line. The data signals from the transmitter are received with the receiver. Data signals, which represent the parameter, which is represented by the received data signals, are passed over the flexible line to the top portion of the well bore.</p> |
