Solid towline with good dragging performance for marine seismic exploration

Abstract

The invention discloses a solid towline with good dragging performance for marine seismic exploration. The solid towline is characterized in that the solid towline comprises a main cable, hydrophones,buoyancy sleeves and an outer sheath. The hydrophones are fixedly arranged on the main cable with an equal interval. The hydrophones are electrically connected to corresponding wire cores in the maincable. Each of the buoyancy sleeves is made of a foamed polyethylene material, and foamed polyethylene is extruded on the main cable. The main cable includes the transmission wire cores, a tensile fiber layer and a conductive wire layer. The tensile fiber layer is formed by weaving aramid yarn and / or polyester yarn outside the transmission wire cores. The conductive wire layer includes a set of power lines and a set of signal lines. The power lines and the signal lines are orderly arranged with an equal interval along the circumferential direction of the main cable outside the tensile fiber layer to form the corresponding wire layer. The buoyancy sleeves are fixedly arranged on the main cable with an equal interval, and each of the buoyancy sleeves is between two adjacent hydrophones. Theouter sheath is made of a thermoplastic polyurethane elastomer rubber material and is extruded outside the hydrophones, positioning ends and the buoyancy sleeves, and the outer sheath is seamlessly bonded to the hydrophones.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a solid streamer used in a marine seismic exploration system. Background technique [0002] With the increase of the earth's population and the improvement of the quality of human life, more natural resources are needed to meet the needs of human production and life, which has led to the over-exploitation of land resources, and the energy crisis has become increasingly prominent. One of several central questions of the first century. The ocean covers two-thirds of the earth, and contains a large amount of solid mineral resources and petroleum resources. It will be the largest resource provider for human survival and development. The grim living situation forces humans to turn their attention to the ocean. However, so far, human exploration of the ocean has just started, and the understanding of the interior of the ocean and its bottom is still in its infancy. There are man...

AI Technical Summary

Problems solved by technology

However, when traditional liquid towlines operate at sea, oil leakage often occurs due to damage to the towline jacket, causing marine environmental pollution, and seawater entering the interior of the towline will cause leakage, corrosion and other damage, making it impossible to continue offshore operations, reducing offshore work efficiency

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