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Hydráty metanu systém H 2 O-CH 4 a environmentální aspekty.

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Presentation on theme: "Hydráty metanu systém H 2 O-CH 4 a environmentální aspekty."— Presentation transcript:

1 Hydráty metanu systém H 2 O-CH 4 a environmentální aspekty

2 Struktura a uvolňování metanu This colorized image of the ocean surface taken from the space shuttle makes the sea and clouds look like an artist's abstract dabs and brushstrokes. The bright streaks are oil slicks produced by hydrocarbons seeping naturally from seafloor vents. struktura led-metan

3 Hydráty CH 4

4 Rozšíření hydrátů metanu 2000m

5 Vrstvičky hydrátů metanu Figure 1 Pressure versus temperature phase diagram for simple methane hydrates. Figure-2 Layers of gas hydrate in a subsea sediment sample.

6 systém H 2 O-CH 4 Stabilita hydrátů CH 4 I.

7 Stabilita hydrátů CH 4 Figure 3 The Hydrate Stability Zone in Subsea Sediments

8 Pozice a rizika hydrátů CH 4

9 Hydráty metanu v potrubí Figure-2 A large gas hydrate plug formed in a subsea hydrocarbon pipeline. Picture from Petrobras (Brazil).

10 Stabilita sedimentů s hydráty metanu Figure-3 Potential scenario whereby dissociation of gas hydrates may give rise to subsea slope failure and massive methane gas release.


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