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2 edition of High-resolution seismic reflection techniques for mapping coal seams fron the surface found in the catalog.

High-resolution seismic reflection techniques for mapping coal seams fron the surface

C. Melvin Lepper

High-resolution seismic reflection techniques for mapping coal seams fron the surface

by C. Melvin Lepper

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  • 1 Currently reading

Published by Dept. of the Interior, Bureau of Mines. in [Washington] .
Written in English

    Subjects:
  • Seismic prospecting,
  • Prospecting -- Geophysical methods,
  • Coal mines and mining -- Safety measures

  • Edition Notes

    Prepared for Bureau of Mines Coal Mine Health and Safety Program

    Statementby C. Melvin Lepper and Frank Ruskey : Denver Mining Research Center
    SeriesTechnical progress report - Bureau of Mines ; 101
    ContributionsRuskey, Frank, United States. Bureau of Mines, United States. Bureau of Mines. Coal Mine Health and Safety Program
    The Physical Object
    Pagination[2], 17 p. :
    Number of Pages17
    ID Numbers
    Open LibraryOL17974497M

    Coal Operators’ Conference The AusIMM Illawarra Branch 6 – 7 July ADVANCES IN SURFACE SEISMIC ACQUISITION, PROCESSING AND INTERPRETATION Allen Rodeghiero 1 and Luke Fredericks 1 ABSTRACT: Seismic Reflection surveys and borehole drilling have been the two primary exploration tools used in Illawarra Coal’s operations in the Author: A. Rodegheiro, L. Fredericks. exploration requires that coal seams or zones of coal seams be mapped in detail. Although drilling can obtain detailed information at the well location, it cannot map lateral facies variations either within the coals or within the sediments that host the coals. In this project, numerical reflection seismic techniques are assessed for mapping.

    Seismic reflection imaging can provide valuable infor- mation on thickness of coal beds and structures that may enhance or impede production. High-resolution seismic reflection has imaged coal seams less than 3 m thick at depths in excess of m for exploration and hazard evaluation (Miller et al., ).File Size: 1MB. In West Germany two steps are usual in the seismic exploration procedure: a reconnaissance exploration applying two-dimensional seismic reflection line surveys, and a detailed exploration applying the three-dimensional reflection method in zones of special interest.

    the seismic-reflection data on depth-to- coal, location of intact coal, voids in the coal seam, and two-way travel time from the surface to the coal and back to the surface. The area1 expansion of the Downloaded 07/03/14 to C Silty Coal N/A C Coal Table 1. Summary of the samples measured in laboratoty Figure 1. Synthetic seismic reflection from cyclic coal seams. Acoustic properties of coal from lab measurement Qiuliang Yao *, De-hua Han, University of Houston Summary.


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High-resolution seismic reflection techniques for mapping coal seams fron the surface by C. Melvin Lepper Download PDF EPUB FB2

High-resolution seismic reflection techniques for mapping coal seams from the surface. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) High-resolution seismic reflection techniques for mapping coal seams from the surface / By C. Melvin. Lepper, joint author.

Frank Ruskey, United States. Coal Mine Health and Safety Program. and Denver Mining Research Center. Abstract. Prepared for Bureau of Mines Coal Mine Health and Safety es bibliographical references (p. High Resolution Seismic Reflection technique is one of the most suitable geophysical methods for mapping the shallow coal seams and associated structural features, which will provide essential input for adopting proper methodology for exploitation and mine planning of coal by: 1.

High resolution seismic reflection surveys are one of the most suitable geophysical methods for mapping the coal seams and associated structural features. 3D reflection seismic is a proven method for resolving coal geology, producing a more continuous image of the coal seams than can be achieved using drilling (Peters, ; Peters et al., ), yet to date it is rarely used for shallow, open-cut coal operations due mainly to the perception that collecting andAuthor: Eric Battig, Heather Schijns, Matt Grant, Neil Millar.

Seismic Reflection Investigations of Coal in the Sydney Basin,” Geophysics, Vol. 51,pp. [7] H. Henson, J. Sexton and J. Jobling, “High‐Resolution Seismic Reflection Study of Shallow Coal Seams Near Harco, Illinois,” SEG Technical Program Expanded Ab-stracts,pp.

Australian coal seam waveguides are thick and do not often support an Airy phase. Reflection mapping has to be based on dispersed waveforms and pulse recompression is important. The availability of surface boreholes allows the extension of the surveying to a face-to-borehole by: 2.

13th SAGA Biennial Conference and Exhibition Short Paper High resolution reflection seismic mapping of shallow coal seams. S.B. Mngadi1 and R.J. Durrheim2,3.

The University of the Witwatersrand, South Africa, [email protected] 2. The University of the Witwatersrand, South Africa, [email protected] The DC resistivity method offers the best potential for the rapid mapping mine workings at a depth of 50 – feet or less.

For workings at a depth of 50 – feet or greater, the seismic reflection method, especially with the use of S-waves, has the greatest potential for success. Steeples, ). They interpreted the zones which lack in reflection energy on the profile as the voids in a 1 meter thick coal seam at the depth of 9 m, or chaotic zones represented as a loss of reflection coherency or an decrease in the dominant frequency on it as the voids in a m thick and 7 m deep coal Size: 1MB.

High resolution common-depth-point reflection profiling: Field acquisition parameter design. High resolution reflection seismics on a tidal flat in the Dutch Delta - acquisition, processing and interpretation. High resolution seismic reflection techniques in the coal industry.

High resolution shallow seismics Author: Peter John Brabham. The seismic method is able to produce highly accurate images of the Earth's subsurface.

Having such detail is not only an important factor in mining, but also in civil engineering. Bauxite exploration attracts both government and industrialists to invest in it because of the high percentage of aluminum present. The economic importance of extracting aluminum from Author: A.

Qadrouh, A. Alanezi, I. Hafiz, K. Munir, M. Alyousif. Premine Coal Seismic Reflection Study Betsy) show faulting and facies changes affecting the Herrin (No.

6) coal seam and the overlying roof rocks. Complex facies transitions in roof rock above the Herrin (No. 6) coal seam were interpreted from the relative amplitude section (Figure 6). The use of shallow seismic reflection technique in near surface exploration of urban sites: an evaluation in the city of S? Performing High Resolution Seismic Reflection for Mapping Bauxite Layers.

DOI: H. Henson, J. Sexton and J. Jobling, “High‐Resolution Seismic Reflection Study of Shallow Coal Seams Near Harco, Illinois,” SEG. The use of both high resolution surface seismic reflection surveys and in-seam seismic techniques in the exploration of coal is described in this paper. In the past, the traditional method for exploration for coal was by means of vertical boreholes both on land and by: 2.

High-resolution shallow seismic reflection methods are being used by the Bureau of Mines to map underground geologic features in coal mines. These features include faults, channel sands, washouts, rolls, and steep dips. Abstract. The high-resolution seismic reflection method was conducted at an abandoned coal mine site located in the Benoni area, near the city of Johannesburg, South Africa, with the aim of investigating the subsidence- and sinkhole-related features that are commonly observed in the by: 1.

High-resolution seismic exploration techniques are useful for determining the detailed information about geological structures like faults, folds, caved pillars, mined-out areas and coal seam. 3. Gochioco – High-resolution 3D surface seismic and coal geophysics program 3 Another coal seam, identified as the Illinois No.

5 (Springfield) seam, has an average seam thickness of m and lies on a nearly horizontal plane beneath the No. 6 seam. Coal Operators' Conference Faculty of Engineering and Information Sciences Coal Seam Modelling and Mine Plalnning Using Results of a 3D Seismic Reflection Survey - An Example from Huntly Coalfield, New Zealand D.

Fergusson Solid Energy North, New Zealand Research Online is the open access institutional repository for the University of. Attempts to apply high frequency seismic reflection techniques to obtain high resolution from surface surveys have encountered considerable problems because of the surface weathering and elevation effects, causing attenuation of the high frequency waves required for high resolution, and the uncertainties introduced by the large near surface variations which seriously distort the by: @article{osti_, title = {Cavity detection using high-resolution seismic reflection methods}, author = {Branham, K.L.

and Steeples, D.W.}, abstractNote = {Surface collapse over abandoned sub-surface coal mines continues to be a problem in many parts of the world. High-resolution P-wave reflection seismology was successfully used to locate water-filled cavities in a 1-m (3-ft) thick coal.Aeromagnetic and Surface Seismic Surveys for Dike Detection in Illinois Coal Seams, Saline County, Illinois.

For over a century, coal mines in northern Saline County, Illinois have been plagued by ultrabasic igneous dikes that intrude into the coal seams, locally altering the composition of the coal and causing operational problems with.