초록 ▼

A towable marine seismic source apparatus for producing a high resolution seismic signal at relatively shallow depths for engineering surveys is disclosed. The apparatus support frame operably mounts a plurality of eight identical chambered air guns in a 2×4×2 configuration to provide a tapered, hea

A towable marine seismic source apparatus for producing a high resolution seismic signal at relatively shallow depths for engineering surveys is disclosed. The apparatus support frame operably mounts a plurality of eight identical chambered air guns in a 2×4×2 configuration to provide a tapered, heavy centered point source. The cylindrical air guns are positioned in a horizontal orientation at a predetermined depth of 1 to 3 meters and are synchronized to fire substantially simultaneously to achieve maximum peak energy output. Two chamber sizes of individual air guns (4 cu. in. & 10 cu. in.) are in a desired range and may be preferably employed in the array configuration to produce the seismic signal having distinct signature characteristics.

대표청구항 ▼

An apparatus for producing a seismic signal in a marine environment when towed behind a vessel and located below the surface of a body of water, including: a support frame; means for securing said support frame to a towing line from the vessel; means for locating said support frame at a desired dept

An apparatus for producing a seismic signal in a marine environment when towed behind a vessel and located below the surface of a body of water, including: a support frame; means for securing said support frame to a towing line from the vessel; means for locating said support frame at a desired depth in the range of 1 to 3 meters below the water surface; a plurality of air guns; means for operably mounting each of said air guns with said support frame for forming an array; said plurality of air guns forming said array arranged on said support frame in two parallel vertical planes with each vertical plane axis having four air guns disposed therein; each of said vertical planes having positioned therein a first air gun and a second air gun with said first and second air guns space apart a distance of substantially 10 feet in a horizontal plane containing said first and second air guns; each of said vertical planes having a third air gun and a fourth air gun positioned therein and disposed substantially midway between said first air gun and said second air gun, said third and fourth air gun being spaced apart a vertical distance of substantially 20 inches and located substantially equidistant from said horizontal plane containing said first and second air guns.