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PERMFILE45741
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PERMFILE45741
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Last modified
8/24/2016 10:48:05 PM
Creation date
11/20/2007 12:28:14 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
GEOLOGIC EVALUATION OF HYDROLOGIC REGIME AT HAWKS NEST MINE BOWMAN 1979
Section_Exhibit Name
Exhibit 2.04-E4 Part 1
Media Type
D
Archive
No
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(210 pounds) would force the water away from the bore hole. As pressure dropped <br />during floe, the eater would enter the bore hole and become entrained in the gas <br />flow to surface. <br />I am convinced for the following reasons that the pressure and dry gas <br />production can be attributed directly to the coals; that the water production <br />caa be attributed to the intervening clastic sequence: <br />1) Analysis of the produced eater (attached) indicates that the <br />source of the eater was the elastic sequenee.Righ total dis- <br />solved solids (8532 mg/L) in this eater are not typical of eaters <br />produced from coals which usually are of such low total dissolved <br />solid content as to be potable. <br />2) Observation of gas breakthroughs while drilling and the extensive <br />desorption tests of the coal definitely ties the methane production <br />• to the coals. <br />3) The highly transmissible cleat and butt fracture systems observed <br />throughout the coals offer the only system possible to explain the <br />relatively high stabilized shut-in pressure and the floe performance <br />of this hole. <br />4) In order to gain additional insight into the hydrologic questions <br />raised by WSC 46,we analyzed water from two other sources is the mine. <br />A sample of roof seep water in the subslope vas collected and analyzed <br />and a sample of standing eater from WSC 45 vas collected after continuous <br />bailing for about 1/2 hour. These analyses are attached. The striking <br />similarity of these analyses to the eater from WSC 06 as to pB, total <br />dissolved solids, and constituent ratios again strongly suggest that <br />the source of the' eater is the elastic sequence rather than the coals. <br />. 2.04-25d <br />
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