Seabed automatic drilling type piling device and method

Abstract

The invention discloses a seabed automatic drilling type piling device and method. The seabed automatic drilling type piling device comprises an expansion fixing module, an upper anchoring module, a lower anchoring module, a chip removal module and a drilling module, and a mooring rope can be dragged to automatically drill into a seabed rock stratum to achieve anchoring; the drilling module can drill the seabed rock stratum; the chip removal module can automatically transfer rock chips to the rear of the device, so that efficient chip removal and drilling are realized; the upper anchoring module and the lower anchoring module play a role of fixing the device during drilling, and can assist in anchoring after drilling to a specified anchoring depth; when an extrusion head is subjected to upward pulling force applied by the mooring rope, an expansion cover in the expansion fixing module deforms and opens under the action of the extrusion head, the friction force between the expansion cover and the rock chips is increased, and therefore reliable anchoring is achieved. The problems of insufficient seabed shallow non-diagenetic piling depth and unreliable anchoring are mainly solved, high automation and controllable piling depth are realized, and the seabed automatic drilling type piling device and method are suitable for piling operation requirements of different water depths and various 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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