Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Zeszyty Naukowe. Górnictwo / Politechnika Śląska

1 2009

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: hydratacja gazu

Sortuj według:

Ogranicz wyniki do:

Povysenie kacestva otbora kernovyh skvazin na prirodnye gazovye gidraty

Chistyakov V., Vishnevsky N., Malcew N.

Zeszyty Naukowe. Górnictwo / Politechnika Śląska

2009

z. 287

43-53

Gas hydrates - the firm crystal connections formed water (liquid water, an ice, water vapor) and low-molecular waterproof natural gases such as carbohydrates (mainly methane), CO2, N2 and others, whose crystal structure effectively compresses gas: each cubic meter of hydrate can yield over 160 m3 of methane. The current estimates show that the amount of energy in these gas hydrates is twice total fossil fuel reserves, indicating a huge source of energy, which can be exploited in the right economical conditions. The further perfection of prospecting methods in the field of studying gas hydrate containing sediments in round extent depends on improvement of methods of sampling native-state core from these sediment keeping not only original composition, but structural - textural features of their construction. A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surface, a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ conditional. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation. In present time for sampling native-state core in natural gas hydrates deposits we are development the sampling device using the effect conservation gas hydrates at negative temperature conditions.