National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Evaluation of Branch and Horizontal Boreholes for In situ Leach Mining.

PB84165869

Publication Date	1980
Personal Author	Dareing, D. W.; Wood, E. T.; Davidson, D. H.
Page Count	156
Abstract	Multiple branch wellbores and horizontal holes, when applied to deep lying ore bodies, have the potential of significantly reducing well costs by reducing total footage drilled per acre of well pattern. In addition, horizontal holes may increase sweep efficiency. Several drilling and completion concepts are given and evaluated in this report. The evaluation shows that there is economic incentive to further develop these concepts for field application to ore bodies 1,500 ft deep.
Keywords	Solution mining Boreholes Leaching Underground mining Drilling Evaluation In situ processing In situ mining
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Maurer Engineering, Inc., Houston, TX.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final) 28 Sep 79-28 Jul 80.
NTIS Issue Number	198413
Contract Number	J0199113

Evaluation of Branch and Horizontal Boreholes for In situ Leach Mining.

Evaluation of Branch and Horizontal Boreholes for In situ Leach Mining.
PB84165869

Publication Date	1980
Personal Author	Dareing, D. W.; Wood, E. T.; Davidson, D. H.
Page Count	156
Abstract	Multiple branch wellbores and horizontal holes, when applied to deep lying ore bodies, have the potential of significantly reducing well costs by reducing total footage drilled per acre of well pattern. In addition, horizontal holes may increase sweep efficiency. Several drilling and completion concepts are given and evaluated in this report. The evaluation shows that there is economic incentive to further develop these concepts for field application to ore bodies 1,500 ft deep.
Keywords	Solution mining Boreholes Leaching Underground mining Drilling Evaluation In situ processing In situ mining
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Maurer Engineering, Inc., Houston, TX.; Bureau of Mines, Washington, DC.
Document Type	Technical Report
Title Note	Open file rept. (Final) 28 Sep 79-28 Jul 80.
NTIS Issue Number	198413
Contract Number	J0199113