Patent Number: 6,193,010

Title: System for generating a seismic signal in a borehole

Abstract: 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.

Inventors: Minto; James (Houston, TX)

Assignee: Tomoseis Corporation

International Classification: G01V 1/02 (20060101); G01V 1/135 (20060101); G01V 001/40 ()

Expiration Date: 02/27/2018