CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.
As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
[PDF-351.96 KB]
Details:
-
Personal Author:
-
Corporate Authors:
-
Description:"Samples of gas were obtained directly from the coalbed during drilling of horizontal and vertical boreholes in six different formations. The samples were analyzed by gas chromatography for C1 to C5 hydrocarbons and for 02, N2, H2, He, and CO2. Methane in the gas varied from 63 to 99 percent
carbon dioxide from 0.1 to 15 percent. The Ch4/CO2 ratio varied and showed no apparent correlation with age, rank, or bed. The majority of samples contained ethane, propane, and butane
hydrogen and helium were found in some samples. Oxygen and nitrogen were usually present, possibly as a result of air contamination. A more extensive sampling program would be necessary to establish a relationship between the amount and composition of the gas in the coalbed and other factors." - NIOSHTIC-2
NIOSHTIC no. 10000604
-
Subjects:
-
Series:
-
Subseries:
-
Document Type:
-
Genre:
-
CIO:
-
Topic:
-
Location:
-
Pages in Document:9 numbered pages
-
NIOSHTIC Number:nn:10000604
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: