A seabed automatic drilling type piling device and method

Abstract

The invention discloses a seabed automatic drilling type piling device and method, which is composed of an expansion fixing module, an upper anchoring module, a lower anchoring module, a chip removal module and a drilling module, and can automatically drill into the seabed by dragging a cable Anchoring is realized in the rock formation; the drilling module can drill through the seabed rock formation, and the chip removal module can automatically move the cuttings to the rear of the device to achieve efficient chip removal and drilling; the upper anchor module and the lower anchor module It acts as a fixing device and can assist anchoring after drilling to the specified anchoring depth; when the extrusion head is subjected to the upward pull force exerted by the cable, the expansion cover in the expansion fixation module will deform and open under the action of the extrusion head, Increase the friction between the expansion cap and cuttings, so as to achieve reliable anchoring. The invention mainly solves the problems of insufficient non-diagenetic piling depth and unreliable anchoring in the shallow seabed, realizes high automation and controllable piling depth, and is suitable for piling operation requirements of different water depths and various types of seabed lithology.

Description

technical field [0001] The invention relates to the field of marine resources development, in particular to a seabed automatic drilling piling device and method. Background technique [0002] With the development of society and economy, the value of the ocean has been paid more and more attention to by humans, and people have developed and utilized it from different angles. In modern ocean development activities, the scale and output value of offshore oil extraction, natural gas development, wave energy development, and offshore wind power generation are increasing. Therefore, a kind of automatic drilling type piling device on the seabed is needed, which can carry out piling and anchoring equipment without being affected by the water depth. [0003] In shallow water areas, people can manually go into the seabed for piling and anchoring to install mechanical equipment, but in deep water areas, it is impossible to artificially go down to the seabed for piling and anchoring, s...

AI Technical Summary

Problems solved by technology

The present invention is equipped with a chip removal module. When the drill bit is drilling, the lifting force generated by the spiral channel in the middle of the drill bit can lift the cuttings to the top of the chip removal tube along the chip removal tube and the annulus of the chip removal tube; The rod can push cuttings out of the piling device, so the device of the present invention can continuously drill to a sufficient depth for anchoring, which solves the problem that the anchoring depth of traditional fixed piles is too shallow to achieve reliable anchoring

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