patent us borehole mining method

Patent US - Method and apparatus for

A novel method and device for sealing a borehole that is filled Method and apparatus for sleeving a borehole US of U S Provisional Patent

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Patent US - Hydraulic borehole mining

Hydraulic borehole mining system US A Citing Patent Filing date Hydraulic borehole mining system and method Cited by examiner

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Patent US - Method for recovering

Methane is recovered from an underground coal seam via a borehole which extends from the earth's surface through the overburden to a cavity that is in partly in or

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EVALUATION OF BOREHOLE MINING AT THE HANSEN

Positive Preliminary Evaluation of Borehole Mining at the Hansen any conventional mining method States patent for a borehole mining tool was

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Patent US - Horizontal Borehole

Horizontal Borehole Mining System and Method US U S Pat No 6 discloses a borehole mining method in which a borehole is driven Patent Filing date

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Hydraulic mining method Patent SciTech Connect

Hydraulic mining method The resulting slurry of mineral fragments and water flows along the slant borehole into the lower end of US US patent

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Patent US - Degasification of coal seams

US A US A continuing to produce gas from said borehole as mining of said unmined portion of said Mining method for methane drainage

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Patent US - Borehole mining method -

A Borehole Mining method comprising driving a borehole into a production zone under a low-degree angle α 0 lt α lt

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Method and apparatus for slurry borehole mining

Patent Method and apparatus for slurry borehole mining US Resource Type Patent

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Patent US - Method and apparatus for

Method and apparatus for slurry borehole mining US A A method of hydraulic borehole mining by drilling into a subterranean ore Zitiertes Patent

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Hydraulic mining method - The United States of

US Patent References pockets is the hydraulic vertical borehole mining provide an improved hydraulic mining method avoiding damage to

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Patent US - Mining method - Google

Patent Citations Referenced by Classifications External Links USPTO USPTO Assignment Espacenet Mining method US A Abstract available in

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US Patent 4 Hydraulic mining method

Hydraulic mining method ores found in isolated lensatic deposits or pockets is the hydraulic vertical borehole mining process Patent US 4 Next

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Horizontal remote mining system and method -

Selective tubing is also utilized to facilitate movement of air and ventilation of the borehole Contact Us Home Browse mining system and method Patent

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US Patent 4 Borehole mining valve

Borehole mining valve to Wenneborg et al discloses a method and apparatus for borehole mining wherein a hydraulic actuating force for Next Patent US

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Patent US - Method for drilling a

In a method for drilling adjacent to a cased known first borehole a second borehole in a In a method for drilling adjacent to a cased known first

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Patent US - Smooth wall blasting in rock

The notched borehole method tends to be costly in terms of the special equipment and labour Cited Patent Filing date Publication Mining method Cited by

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HYDRAULIC BOREHOLE MINING SYSTEM AND

HYDRAULIC BOREHOLE MINING SYSTEM AND METHOD US Andrew Mac Ewen Leawood This application claims the benefit of U S provisional patent

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Mining method - Patent application

An open cast mining method includes sinking a blasting borehole for receiving an explosive charge into a ground body which is to be mined taking an initial

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Patent US - Method for measurement of

A method is presented for measuring the Method for measurement of azimuth of a borehole while drilling US BAKER HUGHES MINING TOOLS INC REEL/FRAME

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Mining method - FreePatent

An open cast mining method includes sinking a Полный текст Патента US lowered into the borehole 4 The mining method as claimed

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Patent US - Borehole aerostatic ground

A method and the apparatus for implementing the method to provide temporary ground support in a mine After an auger or other type of hole has been bored in an

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Patent US - Method for directional

In a method for directional drilling with the aid of a drilling device having a drill pipe and a mining tool In a method for directional drilling with US

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Patent US - Method for removal of

A method for removing methane gas from underground coalbeds prior to mining the coal which comprises drilling at least one borehole from the surface into the coalbed

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Patent US - Drilling image and coal-bed

One borehole is used for a transmitter and another for a receiver A method of mining coal Patent No Issued Title

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Patent US - Method and apparatus for

United States Patent METHOD AND APPARATUS FOR DRILLING IN CASING FROM THE TOP OF A BOREHOLE 8 Claims 6 Drawing Figs US Cl / Int

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Patent US - Horizontal remote mining

Patent Development Ltd Machine and method for Extendable/erectable arm assembly and method of borehole mining Update on Hydraulic Mining in the US

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Solution Mining Using Subterranean Drilling

Patent application title Solution Mining Using Subterranean Drilling Techniques Inventors Michael Bestgen Green River WY US borehole A method of

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Patent US - Borehole mining method -

A Borehole Mining method comprising driving a borehole Borehole mining method US B1 Abstract A Borehole Mining method comprising driving a borehole

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Patent US - Device for borehole

A device for borehole hydraulic mining includes a pipeline Device for borehole hydraulic mining US Drill section and method of hydraulically mining

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