06193010 is referenced by 161 patents and cites 5 patents.

The invention is an apparatus for generating a seismic signal in a fluid filled borehole which includes an elongated housing formed from a gas impermeable material and a controlled frequency energy source within said housing. The housing has an external shape which expands and contracts in response to variations in pressure within said housing to enhance the transmission of said seismic signal to the borehole fluid, such as pressure variations resulting from fluid resonance within said housing.

Title
System for generating a seismic signal in a borehole
Application Number
9/413630
Publication Number
6193010 (B1)
Application Date
October 6, 1999
Publication Date
February 27, 2001
Inventor
James Minto
Houston
TX, US
Agent
E Eugene Thigpen
US
Assignee
Tomoseis Corporation
TX, US
IPC
G01V 1/40
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