TYPES OF TIGHT SAND GAS ACCUMULATION AND ITS EXPLORATION PROSPECT
Received date: 2007-01-04
Revised date: 2007-04-26
Online published: 2008-06-20
As one of the unconventional gas resources, tight sand gas reservoirs which have been found in dozens of basins worldwide, attract more and more attention currently and are deemed to be an important backup resource for conventional gas in future. Its types of formation and distribution are various. Based on the researches of predecessors, this paper analyzes the different forming conditions and characteristics of two types of tight sand gas reservoir respectively: one is “pre-exiting deep gas accumulation”, such as those in Canada's Alberta Basin, western United States Basin and China's Ordos Basin; the other “subsequent tight sand gas accumulation” such as the Cenozoic tight clastic gas pool of the western Sichuan Basin. The status quo and prospect of tight sand gas reservoirs are summarized through case studies.
DONG Xiao-xia; MEI Lian-fu; QUAN Yong-wang. . TYPES OF TIGHT SAND GAS ACCUMULATION AND ITS EXPLORATION PROSPECT[J]. Natural Gas Geoscience, 2007 , 18(3) : 351 -355 . DOI: 10.11764/j.issn.1672-1926.2007.03.351
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