Study of potential gas eruption by seismic survey in Lake Kivu

De‐hua Han, Min Sun, Fuyong Yan
2011 SEG Technical Program Expanded Abstracts 2011   unpublished
We have investigated potential risk of gas eruption by air gun operation in a seismic survey on the Lake Kivu, East Africa, which contains a huge amount of gas dissolved in the water zone below a depth of 260 m. Measured data suggest that gas nucleation and bubble growth in a large body of water require super-saturated condition (pressure significantly lower than the bubble pressure (B. P.) and significant long relaxation time (> 1 second). Initial homogeneous gas nucleation in water enhances
more » ... in water enhances viscous behavior of gas exhaustion from a large body of water. Therefore, a seismic survey on the lake surface will not likely trigger gas outburst from the Lake Kivu.
doi:10.1190/1.3628220 fatcat:vsrgtuuzcrbu3hyzuxmt5w6krq