WO2002075361A3 - Geosteering of solid mineral mining machines - Google Patents

Geosteering of solid mineral mining machines Download PDF

Info

Publication number
WO2002075361A3
WO2002075361A3 PCT/US2002/008299 US0208299W WO02075361A3 WO 2002075361 A3 WO2002075361 A3 WO 2002075361A3 US 0208299 W US0208299 W US 0208299W WO 02075361 A3 WO02075361 A3 WO 02075361A3
Authority
WO
WIPO (PCT)
Prior art keywords
rock
cutter
mineral
angular movements
armored
Prior art date
Application number
PCT/US2002/008299
Other languages
French (fr)
Other versions
WO2002075361A2 (en
Inventor
Larry D Frederick
Dwight Medley
Original Assignee
Geosteering Mining Services Ll
Larry D Frederick
Dwight Medley
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geosteering Mining Services Ll, Larry D Frederick, Dwight Medley filed Critical Geosteering Mining Services Ll
Priority to AU2002255809A priority Critical patent/AU2002255809A1/en
Priority to CA2441621A priority patent/CA2441621C/en
Publication of WO2002075361A2 publication Critical patent/WO2002075361A2/en
Publication of WO2002075361A3 publication Critical patent/WO2002075361A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
    • G01V5/04—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
    • G01V5/06—Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity specially adapted for well-logging for detecting naturally radioactive minerals
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools

Abstract

A rock avoidance control system for solid mineral mining using a forward looking rock/mineral interface (15,16) detector and controlling the miner (10) to cut to the detected rock/mineral interface (15,16). One or more armored gamma ray detectors (20,120) are positioned near the cutter (12) and move with the cuter (12) such that the angular size of the field of view is not reduced. Angular movements of the cutter (12) are measured and used for calculating the rock/mineral interface (15,16) location. A device is incorporated within an armored rock detector (20,120) to sense angular movements of the cutter boom (11) and to correlate changes in gamma radiation (28) to the angular movements, within selected energy ranges. The thickness of the remaining coal (24) is calculated by measuring the rate at which the gamma radiation (28) increases. In one embodiment, rock detectors (20,120) are used to steer the cutting of the leading drum and/or the trailing drum a long-wall mining system.
PCT/US2002/008299 2001-03-20 2002-03-20 Geosteering of solid mineral mining machines WO2002075361A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002255809A AU2002255809A1 (en) 2001-03-20 2002-03-20 Geosteering of solid mineral mining machines
CA2441621A CA2441621C (en) 2001-03-20 2002-03-20 Geosteering of solid mineral mining machines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27689601P 2001-03-20 2001-03-20
US60/276,896 2001-03-20

Publications (2)

Publication Number Publication Date
WO2002075361A2 WO2002075361A2 (en) 2002-09-26
WO2002075361A3 true WO2002075361A3 (en) 2003-01-16

Family

ID=23058533

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/008299 WO2002075361A2 (en) 2001-03-20 2002-03-20 Geosteering of solid mineral mining machines

Country Status (3)

Country Link
AU (1) AU2002255809A1 (en)
CA (1) CA2441621C (en)
WO (1) WO2002075361A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012944A2 (en) * 2003-07-29 2005-02-10 Frederick Mining Controls, Llc Geosteering detectors for boring-type continuous miners
US20180298753A1 (en) * 2017-04-18 2018-10-18 Caterpillar Global Mining Europe Gmbh Control system and method for controlling operation of an underground mining machine
CN109184690A (en) * 2018-07-30 2019-01-11 中国神华能源股份有限公司 Coal rock for coal cutter identification support device, coal mining system and coal-mining method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879463A (en) * 1987-12-14 1989-11-07 Schlumberger Technology Corporation Method and apparatus for subsurface formation evaluation
US5120963A (en) * 1991-01-15 1992-06-09 Teleco Oilfield Services Inc. Radiation detector assembly for formation logging apparatus
US5705812A (en) * 1996-05-31 1998-01-06 Western Atlas International, Inc. Compaction monitoring instrument system
US5931000A (en) * 1998-04-23 1999-08-03 Turner; William Evans Cooled electrical system for use downhole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879463A (en) * 1987-12-14 1989-11-07 Schlumberger Technology Corporation Method and apparatus for subsurface formation evaluation
US5120963A (en) * 1991-01-15 1992-06-09 Teleco Oilfield Services Inc. Radiation detector assembly for formation logging apparatus
US5705812A (en) * 1996-05-31 1998-01-06 Western Atlas International, Inc. Compaction monitoring instrument system
US5931000A (en) * 1998-04-23 1999-08-03 Turner; William Evans Cooled electrical system for use downhole

Also Published As

Publication number Publication date
WO2002075361A2 (en) 2002-09-26
CA2441621C (en) 2014-02-18
CA2441621A1 (en) 2002-09-26
AU2002255809A1 (en) 2002-10-03

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