Title:
Methods of and apparatus for transmitting intelligence to the surface from well bores
United States Patent 2492794

Inventors:
Goble, Ralph W.
Gordon, Jackson
Publication Date:
12/27/1949
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Assignee:
Eastman, Oil Well Survey Compan
Primary Class:
175/45
Other Classes:
340/854.600, 340/870.160, 333/236, 333/33, 33/312, 455/128, 340/855.200, 175/41
International Classes:
E21B7/06; E21B47/02; E21B47/12; E21B7/04
US Patent References:
2012138Method and apparatus for orienting whipstocks
2018080Method of and device for differentiating between geologic strata traversed by bore holes
2064894Common medium multichannel exchange system
2129711Guided transmission of ultra high frequency waves
2139460Means and method for geophysical prospecting
2165062Communicating system
2167201Electron tube
2184931Orienting device
2208147Photoelectric inclinometer
2225668Method and apparatus for logging drill holes
2268256Apparatus for surveying deep wells
2271951Electrical prospecting method and apparatus
2282431Orienting device and method
2340861Orienting device
2344014Warning signal
2354887Well signaling system
Foreign References:
FR412962A