geophysical method for coal exploration

Exploration geophysics Wikipedia

Exploration geophysics is an applied branch of geophysics and economic geology, which uses physical methods, such as seismic, gravitational, magnetic, electrical and electromagnetic at the surface of the Earth to measure the physical properties of the

Coal Exploration and Mining

This article is primarily intended to introduce some general knowledge of coal exploration and mining. The first part of this article deals with the purposes and operative methods of coal exploration in terms of field studies, literature surveys, map compilation, surface geophysics, drilling for coal, and the collection and description of

Multi-parametric Geophysical Logging

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.

Petropedia What is Geophysical Exploration? Definition

Geophysical Exploration is an applied branch of geophysics that uses physical methods to measure the physical properties of the subsurface, along with the abnormalities in those properties at the surface of the earth. It is commonly used to detect the presence and position of geological deposits that could be economically used.

Geophysical Methods of Exploration

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.

Application of Comprehensive Geophysical Prospecting

2.2. Geophysical Characteristics. In order to avoid the multisolution of the single geophysical exploration method, improve the accuracy of exploration, and have a qualitative understanding of the geophysical characteristics of the exploration area, the resistivity logging method [24, 25] is used to study the resistivity distribution law of different depth strata in the exploration area.

Magnetic and Gravity Methods in Mineral Exploration: the

GEOPHYSICAL METHODS IN EXPLORATION AND MINERAL

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

Circular 891 Geophysical Logs as a Source of Coal Bed Data

GEOPHYSICAL LOGS AS A SOURCE OF COAL BED DATA. Geophysical well logs have been invaluable in the search for oil and gas because they provide rapid, economical, and detailed information on the thickness, lithologic characteristics, fluid content, correlation, structure, and depth of strata penetrated by a well.

Coal Exploration and Mining Geology

UNESCO EOLSS SAMPLE CHAPTERS GEOLOGY Vol. V Coal Exploration and Mining Geology Colin R. Ward ©Encyclopedia of Life Support Systems (EOLSS) mining, analysis and utilization. These might provide opportunities to improve the exploration, marketing and feasibility studies for the project.

SURFACE GEOPHYSICAL METHODS FOR DETECTION OF

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

Southern Geophysical Ltd Exploration Geophysics, oil

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)

Downhole Geophysical Logging Applications for Mining

Mar 29, 2018· : mining coal and ore delineation reserves, mining engineering parameters, groundwater hydrology, fractured rock aquifer flow assessment, geotechnical applications for tunneling, rock mechanics applications, etc. > Downhole geophysical methods are faster, more accurate, more versatile, and significantly less expensive than more

Coal Exploration and Geophysical Logging, with Insitu

Coal seams can also be evaluated insitu by geophysical means for their coalbed methane content. All of this work can be accomplished by geophysical tools that run inside the drilling rods. page 3. In-situ Coal Deposit Evaluation Methods. Coal deposits occur in sedimentary strata that have some lateral extent.

Assessment of a Geophysical Coal Exploration Method Completed

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.

Archived: High-resolution 3D surface seismic method and

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.

The Goal of Geophysical Exploration Methods NXT Energy

The Goal of Geophysical Exploration Methods. The goal of oil and gas exploration is to find hydrocarbon accumulations in commercial quantities. Petroleum geoscientists seek information from multiple sources in order to evaluate the numerous Elements and Processes which must be present for a successful petroleum system to exist within a

Induced Polarization (IP) What Is It and Why Do We Use It

Induced Polarization (IP) is a geophysical method used extensively in mineral exploration and mine operations. The IP survey is very similar to electrical resistivity tomography (ERT). Resistivity and IP methods are often applied on the ground surface using multiple four-electrode sites.

Coal mining Prospecting and exploration Britannica

Coal mining Coal mining Prospecting and exploration: The fundamental objective of coal prospecting is to discover coal resources through a search. In areas where coal mining has not been previously practiced, the search process should result in obtaining coal samples that give reasonable evidence of the existence of a coal seam. Once a seam has been discovered, considerable further work is

Drilling Methods Used in Coal Mines Geology for Investors

Jul 31, 2013· Drilling Methods Used in Coal Mines Posted by: Jess Peláez in Drilling,Mine Planning and Management July 31, 2013 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.

Exploration geophysics Wikipedia

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

Overview on the application of geophysics in coal mining

Jul 30, 2013· Over the past 40 years, coal mining geophysics has moved on from being a niche discipline developed to assist with the deep coal mines of Europe, to an activity applied around the world in a large range of mining and related situations. These include exploration for coal, mine planning, mine operations and environmental monitoring.

Exploration Geophysics

We provide geophysical surveys for both, conventional and unconventional hydrocarbon exploration (oil and gas exploration). We have the necessary equipment and experience in performing gravity, magnetotelluric and seismic research methods. These methods combine allow for multi-parametric

Review of Geophysical Exploration On Mined-out Areas and

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

Exploration geophysics Wikipedia

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

Overview on the application of geophysics in coal mining

Jul 30, 2013· Over the past 40 years, coal mining geophysics has moved on from being a niche discipline developed to assist with the deep coal mines of Europe, to an activity applied around the world in a large range of mining and related situations. These include exploration for coal, mine planning, mine operations and environmental monitoring.

Exploration Geophysics

We provide geophysical surveys for both, conventional and unconventional hydrocarbon exploration (oil and gas exploration). We have the necessary equipment and experience in performing gravity, magnetotelluric and seismic research methods. These methods combine allow for multi-parametric

Review of Geophysical Exploration On Mined-out Areas and

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

Exploration » European Geophysical Services

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

Geotechnical evaluation of coal deposits based on the

The Geophysical Strata Rating is a new method for characterising coal measure strata from downhole geophysical logs. • 3D models of GSR and clay content provide detailed maps of geotechnical and geological conditions. • Applications for GSR include hazard mapping, assessment of caving performance and blast design.

(PDF) GEOPHYSICAL TECHNIQUES AND THEIR APPLICATIONS IN

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.

ASSESSMENT OF A GEOPHYSICAL COAL EXPLORATION

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.

The application of geophysics in South African coal mining

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

Surface and Subsurface Methods of Mineral Exploration

Surface and Subsurface Methods of Mineral Exploration . The major motive in exploring the earth’s surface and its interior is scientific curiosity or the desire to understand better the nature of the Earth. Another key motive is the prospect of economic profit.

Geophysical Methods & Applications

Geophysical Methods & Applications SubSurface Surveys & Associates, Inc., established in 1988, specializes in near-surface geophysics and utility locating services and is dedicated to establishing strong client relationships. SubSurface Survey’s extensive education and experience

Geophysical Exploration, Oil and Gas Field in the Manta

40+ items· 164 Geophysical Exploration, Oil and Gas Field Companies in the United States. Manta has 164 companies under Geophysical Exploration, Oil and Gas Field in the United States Geophysical Service company servicing the oil, gas, and coal exploration industries. Geophysical methods include magnetotelluric geopysical methods. (918) 284-2996

Archived: Interstate Technical Group on Abandoned

Coal Geophysics Program. CONSOL's coal geophysics program was developed and employed to address a variety of challenges related to mining operations (i.e. exploration, engineering, and environmental). As such, various geophysical methods were tested.

Detection of Abandoned Underground Coal Mines by

Prior to any field investigation of geophysical techniques or methods for detection or location of coal mines, consideration had to be given to the desired characteristics of the mines to be tested. It was established that each mine should differ in geology, topography and hydrology as much as practical.