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2 edition of Measuring the methane content of bituminous coalbeds found in the catalog.

Measuring the methane content of bituminous coalbeds

C. M. McCulloch

Measuring the methane content of bituminous coalbeds

by C. M. McCulloch

  • 62 Want to read
  • 26 Currently reading

Published by Bureau of Mines in [Washington] .
Written in English

    Subjects:
  • Bituminous coal.

  • Edition Notes

    Bibliography: p. 12.

    Other titlesMethane content of bituminous coalbeds.
    Statementby C. M. McCulloch ... [et al.].
    SeriesReport of investigations -- 8043
    ContributionsUnited States. Bureau of Mines
    The Physical Object
    Pagination22 p. :
    Number of Pages22
    ID Numbers
    Open LibraryOL22418881M

      India recognizes the strategic importance for developing shale gas resources like other countries in the world. Shale gas reservoirs are known to be difficult for extracting gas in comparison to conventional reservoirs. Recently, due to high prices of gas, rising demand and enhancement in recovery technologies has attracted the Indian energy industries to explore the shale gas resource. Coal. The estimation of methane content of a coal bed is determined from the Eddy curve by locating the average depth of each coal seam on the depth axis. A normal line is extended upward from the depth axis (feet) to intersect the specific coal rank curves.

    @article{osti_, title = {Thermal, mechanical, and physical properties of selected bituminous coals and cokes}, author = {Singer, J M and Tye, R P}, abstractNote = {Thermal, mechanical, and physical properties of virgin and heat-treated Pittsburgh seam coal were determined as part of a comprehensive study of combustion of monolithic coal block. Frontiers of Chemical Science and Engineering. ISSN

    Methane emissions data were available for the U.S., the U.K., former U.S.S.R., Australia, China, Germany, Poland and Czechoslovakia. Methane emissions for India and S. Africa were estimated from a linear correlation between the average depth of mining and specific methane emissions derived from the available data for the eight countries. Estimating methane content of bituminous coalbeds from adsorption data. Published Date: Series: method test was developed for general mine safety applications by the U.S. Bureau of Mines in the early 's to measure the gas content of coal samples obtained from the relatively shallow depths of eastern U.S. coal mines. Over time, ap.


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Measuring the methane content of bituminous coalbeds by C. M. McCulloch Download PDF EPUB FB2

Measuring the methane content of bituminous coalbeds 22 p. (OCoLC) Online version: McCulloch, C.M. (Charles M.). Measuring the methane content of bituminous coalbeds. [Washington]: Bureau of Mines, [] (OCoLC) Online version: McCulloch, C.M.

(Charles M.). Measuring the methane content of bituminous coalbeds. Additional Physical Format: McCulloch, C.M. (Charles M.). Measuring the methane content of bituminous coalbeds 22 p.

(OCoLC) Material Type: Document. The methane content of virgin bituminous coalbed can now be measured accurately in the field with exploration core samples from vertical boreholes.

directly measure the gas content of the coalbeds exposed in the wellbore. Annual Book of ASTM Standards. Part A.G., Estimating methane content of bituminous coalbeds from. In contrast, friable, high rank (medium to low volatile) bituminous coalbeds typically had less than 10% residual gas.

Caution must be used in evaluating the resource recovery potential of coalbeds with a high residual gas content, since it may represent methane that will not readily flow to a methane drainage borehole under field by: Measuring the methane content of bituminous coalbeds Published: ().

coalbeds in the United States (Diamond et al., ), shows that residual gas can comprise 40 to 50% of the total gas content, in particular for relatively low-rank (high volatile-A bituminous) blocky coalbeds.

In contrast, Mable, high rank (medium to low volatile) bituminous coalbeds. Journals & Books; Help; With the validity of the unipore model demonstrated for V/V^measuring the CH4 content of coal using drill cuttings.

The technique may be seen as a three-stage process. A.G. KimEstimating Methane Content of Bituminous Coalbeds from Adsorption Data (2nd Edition. can be used at times to assess gas content conditions ahead of mining.

Although mine safety was initially the primary purpose for measuring the gas content of coalbeds, the prospective for commercial coalbed methane production has led toabetter interest in this technology.

Methane occurs with other hydrocarbons, C0 2, N 2,0 2, and He. The determination of gas content in a coal reservoir directly affects the estimation of CBM resources, the evaluation of CBM provinces and the preparation of development plan.Currently, the gas content of a coal reservoir can be obtained by direct or indirect methods.Direct methods include geologic exploration method, mine method, natural desorption method and heating and.

The methane content of virgin bituminous coalbed can now be measured accurately in the field with exploration core samples from vertical boreholes. The gas content of the coal per unit weight can be used either to design a mine ventilation system or to determine if degasification of the coalbed will.

Gas content in biogenic CBM systems can vary significantly over short distances along coalbeds and even vertically across individual coal seams, as has been documented in the eastern part of the Illinois Basin, where gas content ranges from few to more than scf/t ( cm 3 /g) (Drobniak et al.,Strąpoć et al., a).

Previous US Bureau of Mines studies revealed gas contents from to cm3 /g at depths of 99 to m for the bituminous coal beds of the Allegheny Group. More recent core data from the Allegheny Group yielded gas contents from to cm 3/g at depths from to m. Methane is found in coals either adsorbed on the coal surfaces, as free gas in fractures and large pores or dissolved in ground water in coalbeds.

The amount of gas stored in the coals is influenced by depth of burial and its related pressure, rank of coal and its related porosity distribution, and a. NIOSHTIC-2 Publications Search - - Measuring the methane content of bituminous coalbeds. The methane content of virgin bituminous coalbed can now be measured accurately in the field with exploration core samples from vertical boreholes.

Most of the pores, however, appeared to have a very small volume and large surface area, which explains the large quantities of methane that are retained in adsorbed form in coalbeds. On the surface of coal, a network of microfractures and cracks was seen, indicating that it is these fractures that are chiefly responsible for flow of gas.

"The Bureau of Mines estimated the methane content of a coal, which depends primarily upon rank and pressure, from the adsorption equation V = kpn, where k and n are constants related to rank. By incorporating corrections for moisture, ash, and tempe. from book Carbon Utilization: Estimating Methane Content of Bituminous Coalbeds From Adsorption Data Measurement of the volume of gas adsorbed per unit mass of coal with increasing.

Estimating methane content of bituminous coalbeds from adsorption data. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) Online version: Kim, Ann G.

Estimating methane content of bituminous coalbeds from adsorption data. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type. The methane content of a given coal can be estimated by measuring the amount of gas emitted by a core sample recovered during exploratory drilling ().

This direct method is simple and is considered accurate to pct. Estimating methane content of bituminous coalbeds from adsorption data. United States Department of the Interior, Bureau of Mines, Report of Investigations Google Scholar.Coal Bed Methane, in short, well known as CBM, is actually methane (CH4) gas produced during formation of coal and is stored within coal beds – stratified sedimentary deposit consisting predominantly of hydrocarbon derived from plant debris of geological past through a process called coalification (details in) – occurring at considerable depth under sediment load pressure.Kim, A.G.: Estimating Methane Content of Bituminous Coalbeds from Adsorptive Data.

U.S. Bureau of Mines, Report of Investigation, RI () Google Scholar 5. U.S. EPA, Identifying Opportunities for Methane Recovery at U.S. Coal Mines: Profiles of Selected Gassy Underground Coal Mines -EPA K, pp. 2–5 (January