Povysenie kacestva otbora kernovyh skvazin na prirodnye gazovye gidraty

• Autorzy: Chistyakov V. , Vishnevsky N. , Malcew N.

Warianty tytułu

EN

Improvement quality of coring at natural gas hydrates well drilling

• Języki publikacji: RU

Abstrakty

EN

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.

Słowa kluczowe

PL

hydratacja gazu; wiercenia

EN

gas hydrates; drilling

• Wydawca: Wydawnictwo Politechniki Śląskiej
• Czasopismo: Zeszyty Naukowe. Górnictwo / Politechnika Śląska
• Rocznik: 2009
• Tom: z. 287
• Strony: 43--53
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Chistyakov V.

autor

Vishnevsky N.

autor

Malcew N.

• Saint-Petersburg State University 7-9, Universitetskaya nab., St.Petersburg, 199034 tel. [phone],

Bibliografia

• 1. Басниев к.с. Природные газогидратные ресурсы, проблемы, перспективы. - Вып. t8 _ М.: Нефть и газ, 2003, с. 20.
• 2. Дядин Ю.А., Гущин А.л. Газовые гидраты. Соровский образовательный журнал.1998, No. 3, с. 55·64.
• 3. Истомин В.А., Якушев Б.С. Газовые гидраты в npиродных уеловиях.- М.: Недра,1992, с. 236.
• 4. Кудряшов Б.Б., Чистяков в.к., Литвиненко В.С. Бурение скважин в условиях изменения агрегатного состояния горных пород. - Л.: Недра, 1991, с. 295.
• 5. Макогон Ю.Ф. Природные газовые гидраты: распространение, модели образования, ресурсы. Рос. хим. с. еж. Рос. ХИМ. об-ва ИМ. Д.И. Менделеева). 2003,Т. XLVII, No. 3, с. 70-79.
• 6. Якушев n Перлова Е.В., Mахонина Н.А. и др. Газовые гидраты в отложениях Якушев В.С., Перлова Е.В., Махонина Н.А. и др. Газовые гидраты в отложениях Материков и островов. Рос. хим. ж. (Ж. Рос. ХИМ. об-ва ИМ. д.и. Менделеева). 2003, Т. XLVII, No. 3, с. 80-90.
• 7. Dallimore, S.R., T. Uchida, and T.S. Collett.: Scientific Results from JAPEXlJNOC/GSC Ma11ik 2L-38Gas Hydrate Research Well, Mackenzie Delta, Northwest Territories. Canada, Geological Survey of Canada Bulletin 544,1999, p. 403 (32 articles).
• 8. Tsuji H. Y.: Japan drills, logs gas hydrate wells in the Nankai Trough. Oil&Gas Journal, ;Sept.12, 2005, vol. 103.34~ p. 37-42.