Seabed multi-point-location percussion drilling coring miniature drilling rig carried by submersible vehicle

Abstract

The invention discloses a seabed multi-point-location percussion drilling coring miniature drilling rig carried by a submersible vehicle. The drilling rig comprises a first hydraulic motor, a gearbox,a percussion rotation device, a drilling tool connection and detachment device, a drilling tool storage device and drilling tools. The first hydraulic motor, the gearbox, the percussion rotation device and the drilling tool connection and detachment device transmit power in sequence. The power is transmitted to the drilling tools through the drilling tool connection and detachment device. The drilling tool connection and detachment device can select one drilling tool from the drilling tool storage device for connection and can detach the drilling tool which completes coring and enable the detached drilling tool to enter the drilling tool storage device. The seabed multi-point-location percussion drilling coring miniature drilling rig carried by the submersible vehicle is carried by the submersible vehicle, and can implement repeated multi-point-location coring and storage during one time of diving into the sea, and the economical efficiency of seabed operation is obviously improved; and the flexibility of seabed sampling operation is improved, and the drilling rig can be suitable for sampling seabed mountains and the seabed surface at the same time. During percussion drilling sampling with the seabed multi-point-location percussion drilling coring miniature drilling rig carried by the submersible vehicle, the efficiency and the effect of operation of hard rock coring are effectively improved, and meanwhile, the accident that a drilling bit gets stuck is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of seabed resource hard rock sampling, and in particular relates to a submersible multi-point percussion drilling micro-drilling machine for taking rock cores. Background technique [0002] The development of human society is inseparable from the development and utilization of various resources. Today, with the gradual depletion of land resources, people turn their attention to the deep ocean. There are extremely rich mineral resources in the seabed crust, including oil, natural gas, polymetallic nodules, cobalt-rich crusts, hydrothermal sulfides, marine organisms, gas hydrates, and clay minerals. These resources have great economic value and strategic importance. significance. The seabed core sampling drilling rig is the key technical equipment necessary for marine geological and environmental scientific research, marine mineral resource exploration and seabed engineering geological survey. As far as the...

AI Technical Summary

Problems solved by technology

The most important thing is that the drilling rig can only be sampled at one position during a lowering process. If the drill sticks or the accident occurs after unloading, the sampling will only fail, which has high costs and high risks.

[0003] In fact, for the exploration of seabed resources, in addition to the large sampling depth, it is also necessary to sample the surface core at a small depth, such as the sampling of the surface layer of the seabed rock and mountain structure, which is difficult to achieve with the existing large drilling rig system

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