The word "geophysics" in oil exploration is often used synonymously with "seismic", overlooking many other fruitful techniques. In mineral exploration and engineering projects, applicability of seismic imaging is often limited and other geophysical methods take the front seat.
and application of geophysical methods, as local coal mining companies generally do not have in-house geophysicists. Consequently, the Coaltech Research Organisation's Geology and Geophysics working group forum compiled a textbook aimed at addressing this need: to produce a guide for applying geophysics to coal mining problems in South Africa ...
In conjunction with "direct" information from drilling, geophysical borehole surveys and often also in combination with Vertical Seismic Profiling, we are able to determine the quality of a deposit. For more than 25 years, for example, the in-seam seismic method has proved successful in the exploration of underground hard coal deposits.
The final technical report for the assessment of a geophysical coal exploration method was submitted to the Illinois Clean Coal Institute. The focus of these coal exploration projects are to accurately and cost effectively predict the geology of a coal field.
The value of any given geophysical investigation method toward reduced drilling cost and increased returns is relative to where you are in the prospecting process, to geochemistry results, and to budget and business objectives. Let Zonge assist you in recommending methods and next steps with the most potential value to your project.
GEOLOGY – Vol. V – Coal Exploration and Mining Geology - Colin R. Ward ©Encyclopedia of Life Support Systems (EOLSS) COAL EXPLORATION AND MINING GEOLOGY Colin R. Ward Head, School of Geology, University of New South Wales, Sydney, Australia Keywords: Coal, geology, exploration, mining, resources, reserves, geophysical
In exploration programs for coal mining, geophysical logging of boreholes is mainly undertaken to reveal seam locations and the basic lithological section. Through the introduction of the Geophysical Strata Rating (GSR), this paper develops new geotechnical applications for geophysical logs.
Successfully field tested with almost every sensors EM including the LTS Squid.
Despite the success of multi-component seismology and associated converted-wave (PS-wave) imaging methods in the petroleum industry, there has been relatively little effort devoted to shallow, high-resolution converted-wave imaging in the coal sector. By analogy to petroleum-scale applications,
Exploration geophysics is also used to map the subsurface structure of a region, to elucidate the underlying structures, spatial distribution of rock units, and to detect structures such as faults, folds and intrusive rocks. This is an indirect method for assessing the …
Coal exploration projects are focused to accurately predict the geology of a coal field in a cost-effective manner. More geologic data gene rally yields a better geological model of the coal field. Advances in geophysical methods may provide tools to supplement traditional methods of coal exploration.
SURFACE GEOPHYSICAL METHODS FOR DETECTION OF UNDERGROUND MINE WORKINGS By William J. Johnson and Robert E. Snow – D'Appolonia, Monroeville, PA John C. Clark – Bay Geophysical Associates, Traverse City, MI Abstract Efforts to delineate underground mine workings in the vicinity of tailings impoundments has
Geophysical equipment on mobile loggers The system of geophysical logging has been integrated into the routine exploration programmes of the coal sector and presently a total of eight mobile geophysical loggers are used on a regular basis by CMPDI for logging of about 50,000 depth metres annually, providing useful inputs to mine planning.
Get this from a library! Development of geophysical methods for coal exploration in Alberta : projects supported in part by the Alberta/Canada Energy Resources Research Fund.. [Alberta. Alberta Energy. Research and Technology Branch.; Alberta Office of Coal Research and Technology.;]
Exploration geophysics is the applied branch of geophysics which uses surface methods to measure the physical properties of the subsurface Earth, along with the anomalies in these properties, in order to detect or infer the presence and position of ore minerals, hydrocarbons, geothermal reservoirs, groundwater reservoirs, and other geological structures.
Geophysical methods of exploration are means to collect geophysical data that can be used to prospect directly for economic minerals that are characterized by anomalous magnetic, conductive or radiometric responses.
Drilling Methods Used in Coal Mines Posted by: Jess Peláez in Drilling, Drilling and Drill Results For coal deposits, like most other minerals, drilling is a key to identifying in detail the grade and size of the resource, both prior to mine development, and during operations.
Gochioco – High-resolution 3D surface seismic and coal geophysics program 2 written and archived. The borehole camera method was the only non-seismic geophysical method published since it was a non-proprietary technology (Gochioco et. al., 2002). It is a simple system that provided invaluable benefits to the coal company.
Mar 01, 2019· On the basis of the relevant research, this paper defines different goaf types from the perspective of geophysical exploration and discusses the geophysical prerequisites for goaf detection. DC methods, electromagnetic methods, seismic methods, and other geophysical methods on the ground and in the subsurface are reviewed and summarized using ...
Geophysical methods are used widely in the search for and exploitation of many types of economic deposit, from hydrocarbons and evaporites through to lead and copper. Exploration Geophysical logging of drilled holes can provide invaluable information on quality and quantity of many economic deposits, such as many metals, coal and lignite ...
Geophysical exploration can be effective in detecting and monitoring potential sources of coal mine water in-rushes and underground watercourses. Generally, in-mine seismic, DC resistivity, and transient electromagnetic methods are used for such purposes in China.
Findings reflected that magnetic technique is the most widely used method in minerals exploration while magneto-telluric method is not commonly applied in mining application. Collected results also showed that usually more than one geophysical method should be applied to arrive a robust conclusion concerning an in-depth existing ore deposit.
The requirements for coal exploration are often quite similar to oil and gas exploration, and Southern Geophysical Ltd can provide shallow and deep seismic surveys. Other methods include: Ground Penetrating Radar (GPR) (for shallow targets) Resistivity (for locating burning coal seams)
Research in basic geological sciences, geophysical and geochemical methods, and drilling technologies could improve the effectiveness and productivity of mineral exploration. These fields sometimes overlap, and developments in one area are likely to …
Part one presents the general introduction of strategic planning and why geophysical methods are necessary in mine planning. Second part reviews relevant literatures on geophysical methods. The third part discusses prospecting for metallic deposits using appropriate geophysical methods as tools in strategic planning.
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GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL ENVIRONMENTAL INVESTIGATIONS by Donald B. Hoover, Douglas P. Klein, and David C. Campbell INTRODUCTION In the following discussion, the applicability of geophysical methods to geoenvironmental studies of ore deposits is reviewed. Details of geophysical techniques are not emphasized; these are ...