Chemical Signatures of and Precursors to Fractures Using Fluid Inclusion Stratigraphy Page: 4 of 48
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LIST OF FIGURES
Figure 1: Typical FIT mass spectra of fluid inclusions in drill chips from a particular
d e p th ....................................................................................................... . . 9
Figure 2: FIS Log for Steamboat Springs Well 87-29.................................................12
Figure 3: FIS Log for Karaha Well T-2. A vapor zone begins at approximately 3000
feet in the well............................................................................................14
Figure 4: FIS Log for Karaha Well K-21.....................................................................16
Figure 5: FIS Log for Karaha Well K-33.....................................................................18
Figure 6: FIS Log for Glass Mountain Well GMF 17A-6.............................................20
Figure 7: FIS Log for Glass Mountain Well 88-28 .....................................................22
Figure 8: Comparison of means for fracture and non-fracture areas for select
chemical species for Well 87-29. For C02 there is a statistical difference
between fracture and non-fracture areas however for H20 there is not a
sta tistica l d iffe re n ce ...................................................................................2 6
Figure 9: Photographs of the occurrence of calcite and quartz in Steamboat Springs
W e ll 8 7 -2 9 .............................................................................................. . 2 8
Figure 10: Photographs of the occurrence of pyrite in Karaha Well T-2.................. 29
Figure 11: Photographs of calcite occurrence in Glass Mountain Well 88-28............30
Figure 12: C02 / N2 ratio versus percent total gas plots. Trends for boiling and
co nd e nsatio n ...................................................................................... . . 3 1
Figure 13: Plot of change in ratio with lost circulation, dikes and altered zones for
C oso w ell 68-20 .................................................................................. . . 32
Figure 14a: Specific fracture locations in Well T2. The plots are of the concentrations
of C02 shown in red, H20 shown in blue, and H2S shown in yellow.........35
Figure 14b: Fracture locations for Well 88-28. The plots are of the concentrations of
C0 2 shown in red, H20 shown in blue, and H2S shown in yellow .......... 36DOE Chemical Signatures Fractures FIS &_y F1E' L LF NLL
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Dilley, Lorie M. Chemical Signatures of and Precursors to Fractures Using Fluid Inclusion Stratigraphy, report, March 30, 2011; United States. (https://digital.library.unt.edu/ark:/67531/metadc833496/m1/4/: accessed April 20, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.