Air gun seismic source dragging system and marine geological exploration ship

Abstract

The invention relates to an air gun seismic source dragging system and a marine geological exploration ship. The air gun seismic source dragging system comprises a main buoy, an additional buoy and aballast adjusting assembly, wherein the additional buoy and the ballast adjusting assembly are both arranged on the outer wall of the main buoy, and a water containing cavity is formed in the additional buoy; the ballast adjusting assembly comprises a water pump, a water inlet of the water pump is located outside the additional buoy, and a water outlet of the water pump is communicated with the interior of the water containing cavity; when the water pump injects water into the water containing cavity, the sum of the gravity of the main buoy, the additional buoy and the water in the water containing cavity can be greater than the sum of the buoyancy of the main buoy and the additional buoy; and when the water pump pumps water in the water containing cavity to the outside, the sum of the gravity of the main buoy and the additional buoy is less than the sum of the buoyancy of the main buoy and the additional buoy. The technical problem that when an air gun array is dragged, ice blocks floating on the water surface are prone to damaging a gun cable and an air gun seismic source floating body is solved.

Description

technical field [0001] The present invention relates to the technical field of marine exploration, and further relates to the field of marine seismic exploration and polar seabed detection excitation source equipment, and in particular to an air gun source towing system for marine seismic exploration or seabed resource detection and a marine geological exploration ship. Background technique [0002] As countries around the world pay more and more attention to the security of oil energy and the fundamental supporting role of oil energy to global economic development has become increasingly prominent, offshore oil exploration and development worldwide have gained momentum under the application of new technologies and new acquisition equipment. Greater development. [0003] The marine air gun seismic source towing system cooperates with efficient marine equal-buoyant towlines or submarine nodes, and submarine cable seismic acquisition equipment to facilitate seismic exploration...

AI Technical Summary

Problems solved by technology

[0005] 1. When working in waters such as polar regions, if the conventional towing mode is used, the air gun source buoyant body floats on the water surface. When the exploration ship is towing, the air gun source buoyant body collides with the ice layer, causing damage to the air gun source buoyant body affect the normal construction;

[0006] 2. Under normal circumstances, the gun cable that tows the air gun array enters the water from the rear of the ship about 20m to 40m, and the relatively rear gun cable water entry point will collide with the floating ice at the stern after the polar ice is broken, which is easy to cause The gun cables were cut and damaged by floating ice

[0007] In the related art, when the air gun array is towed, the ice floating on the water surface is easy to damage the gun cable and the air gun source floating body, and no effective solution has been given so far.

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