Hydrogen-oxygen acoustic logging device
First Claim
1. A hydrogen-oxygen acoustic logging device for generating acoustic waves for logging a subsurface formation when arranged in a borehole through the formation, the device being capable of electrolyzing water to a gaseous hydrogen-oxygen mixture and firing the gaseous mixture for generating the acoustic waves, and the device comprising an inflatable compartment to be inflated by the gaseous hydrogen-oxygen mixture, wherein the device comprises a drill string stabilizer unit having an outer wall facing and closely fitting to a blade of a borehole wall portion, and provided with a recess which contains the inflatable compartment and, when arranged in logging position against the borehole wall portion, defines a substantially closed wave generating chamber.
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Accused Products
Abstract
A hydrogen-oxygen acoustic logging device is provided for generating acoustic waves for logging a subsurface formation when arranged in a borehole through the formation. The device is electrically driven for electrolyzing water to a gaseous hydrogen-oxygen mixture and for firing the gaseous mixture for generating the waves. The device comprises an inflatable compartment to be inflated by the gaseous hydrogen-oxygen mixture. The device further comprises a housing having an outer wall facing and closely fitting to a borehole wall portion, and provided with a recess. The recess contains the inflatable compartment and, when arranged in logging position against said borehole wall portion, defines a substantially closed wave generating chamber.
12 Citations
15 Claims
- 1. A hydrogen-oxygen acoustic logging device for generating acoustic waves for logging a subsurface formation when arranged in a borehole through the formation, the device being capable of electrolyzing water to a gaseous hydrogen-oxygen mixture and firing the gaseous mixture for generating the acoustic waves, and the device comprising an inflatable compartment to be inflated by the gaseous hydrogen-oxygen mixture, wherein the device comprises a drill string stabilizer unit having an outer wall facing and closely fitting to a blade of a borehole wall portion, and provided with a recess which contains the inflatable compartment and, when arranged in logging position against the borehole wall portion, defines a substantially closed wave generating chamber.
- 14. A hydrogen-oxygen acoustic logging device for generating acoustic waves for logging a subsurface formation when arranged in a borehole through the formation, the device being capable of electrolyzing water to a gaseous hydrogen-oxygen mixture and firing the gaseous mixture for generating the acoustic waves, and the device comprising an inflatable compartment to be inflated by the gaseous hydrogen-oxygen mixture, wherein the device comprises a drill bit, having an outer wall facing and closely fitting to a borehole wall portion, and provided with a recess which contains the inflatable compartment and, when arranged in logging position against the borehole wall portion, defines a substantially closed wave generating chamber.
Specification