Down hole pressure/temperature gage connect/disconnect...

Details Down hole pressure/temperature gage connect/disconnect... Down hole pressure/temperature gage connect/disconnect...

H - Electricity

04

B

324/58, 340/79

H04B 3/54 (2006.01) E21B 47/12 (2006.01) G08C 19/14 (2006.01)

Patent

CA 1075339

ABSTRACT OF THE DISCLOSURE A method and an apparatus for connecting a gage to an oil well pump power cable for transmitting pressure and temperature data to a surface recorder whereby the gage can be selectively disconnected when it is desired to test the insulation int??rity of the pump power supply system, and selectively connected when the test is completed. The gage is connected to the neutral point of the three phase motor winding through a latching relay. A code transmitter generates a frequency coded signal on the power cable to a decoder which controls the relay. The same coded signal is utilized to open and close the relay contacts as desired.

303641

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