An experimental rock sample device for multi-angle drilling anisotropic media

Abstract

The invention discloses a multi-angle drilling anisotropic medium experimental rock sample device, comprising a drilling rig base, a support assembly, a drill bit assembly, a power assembly, a lubricating assembly and a clamping assembly; the supporting assembly and the clamping assembly are arranged on the drilling rig base , the power assembly is arranged on the upper end of the support assembly; the drill bit assembly is connected to the power assembly; the lubricating assembly includes a lubricating fluid tank, the drill bit assembly includes a drill bit power transmission shaft and a hollow sampling bit, the drill bit power transmission shaft is a hollow shaft, and the top of the drill bit power transmission shaft is connected to the The lubricating fluid control switch is connected; the drill bit power transmission shaft is driven and rotated by the power assembly; the hollow sampling bit is arranged at the lower end of the drill bit power transmission shaft, and the interior of the hollow sampling bit is communicated with the inner cavity of the drill bit power transmission shaft. The lubricating fluid in the lubricating fluid tank above the drilling rig is transmitted to the inside of the drill bit through the hollow power transmission shaft, and the corresponding lubricating fluid can be used for different lithology and rock samples to achieve internal lubrication.

Description

technical field [0001] The invention relates to the technical field of mechanical processing for petrophysical experiments in geological exploration, in particular to a multi-angle drilling device for experimental rock samples in anisotropic media. Background technique [0002] At present, the known experimental core drilling device is to install a hollow sampling bit on the existing bench-top drilling machine for sampling, and the full-diameter holder is a flat vise without arc, and the contact area between the full-diameter core and the holder is small, When drilling samples, the full-diameter core is easy to slide, which affects the success rate of drilling samples. Only rock samples perpendicular to the axis of the full-diameter core can be drilled, that is, parallel to the full-diameter direction. Through literature search and investigation, it is found that the reservoir rocks in many basins have obvious anisotropic characteristics, such as the Ordos Basin, the Jungga...

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Problems solved by technology

[0004] In order to solve the problems of polluting the working environment by directly showering the drill bit with tap water, single sampling angle, and insufficient clamping stability, the present invention provides a multi-angle drilling device for anisotropic medium experimental rock samples, which can add corresponding lubrication for different lithologies Liquid, to achieve internal lubrication sampling, not only to achieve multi-angle sampling, improve the success rate of sampling, but also make the rock sample drilling environment clean and tidy

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