Unlock instant, AI-driven research and patent intelligence for your innovation.

Drill core extractor

a drill core and extractor technology, applied in the field of drill core extraction systems, can solve the problems of inability to find prior art attempts that provide similar methods for extracting core samples, and no prior art provides sleeve sealing of drill rods as a means to extract core samples at a much faster rate, and achieve the effect of low friction quality

Inactive Publication Date: 2009-03-19
CLARKE DALE
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]In one aspect of the invention, the sleeve may comprise any su

Problems solved by technology

The applicant failed in finding attempts in prior art that provide similar methodologies for core extraction.
While attempts have been made to refine core-extraction systems, no prior art provides sleeve sealing of drill rods as a means to use water backpressure to extract core samples at a much speedier rate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drill core extractor
  • Drill core extractor
  • Drill core extractor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021]In the following description, similar features in the drawings have been given similar reference numerals.

[0022]Although exploration drilling is generally oriented to a downward and upward vertical axis, mild angles are at times used. However, for clarity and illustration of the present invention, the specification will depict the common downward vertical orientation.

[0023]Turning now to FIG. 1, a perspective exploded view of the seal assembly 2 of the present invention generally comprising; a male casing adapter 10, a grip ring 20, a sleeve housing 30, a retainer ring 40, an upper oil seal 45, a lower oil seal 48, a sleeve 50, a form ring 52, a water inlet 60, a water outlet 70, and an oil inlet.

[0024]Turning to FIG. 2, a partially cross-sectioned view of the seal assembly of the present invention further comprising:—a male casing adapter 10 having a rigid tubular body threaded at a lower end to mate with a female casing adapter, and a forming end 12, water ports 14, and an a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A system for extracting drill cores from a borehole. The system enables a semi-resilient sleeve-inserted in a housing—to be sealed about the circumference of a drill rod thereby allowing for upward backpressure against the drill core when activated. The system comprises: a housing assembly having sleeve retaining annular rings with edge treatment that forces outward displacement of the central region of the sleeve so as to ensure utmost clearance from a drill rod, which traverses said sleeve. The system thereby allows extraction of drill core samples without the time-consuming fishing method therefore increasing productivity by a substantial margin.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a system for extracting drill cores from a borehole. The system enables a semi-resilient sleeve-inserted in a housing—to be sealed about the circumference of a drill rod thereby allowing for upward backpressure against the drill core when activated. The system comprises: a housing assembly having sleeve retaining annular rings with edge treatment that forces outward displacement of the central region of the sleeve so as to ensure utmost clearance from a drill rod, which traverses said sleeve. The system thereby allows extraction of drill cores without the time-consuming fishing method therefore increasing productivity by a substantial margin.BACKGROUND OF THE INVENTION[0002]One of the many facets of hard rock mining is exploration drilling comprising generally of boring core samples in bed rock to obtain a clearer picture within the ore body. This in presently accomplished by boring through an ore body using a hollow drill...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E21B25/00E21B49/02
CPCE21B25/005
Inventor CLARKE, DALE
Owner CLARKE DALE