Oil & Gas Geology ›› 2008, Vol. 29 ›› Issue (5): 565-573.doi: 10.11743/ogg20080504

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Geology of giant Tahe oilfield and a review of exploration thinking in the Tarim Basin

Zhai Xiaoxian, Yun Lu   

  1. Northwest Oilfield Company, SINOPEC, Urumqi, Xinjiang 830011, China
  • Received:2008-05-26 Online:2008-10-24 Published:2012-01-16

Abstract:

As the first marine Paleozoic giant oilfield in China and an oilfield dominated by palaeokarstic reservoir of Ordovician carbonate rock,Tahe is located on the southern Akekule Salient of Shaya Uplift,the northem Tarim Basin,with its reserves over 1 billion tons.The obtained results and knowledge about the oilfield are summarized by us in tectonic evolution,sedimentary patterns,reservoir features and hydrocarbon accumulation models.It has been practically demonstrated that continuous enrichment and improvement of petroleum geology theories on Paleozoie marine carbonate in Tarim Basin is a foundation for discovering Tahe oilfield and extending towards its periphery and deeper intervals,and that the mature,whole and effective exploration technology is a tool to make major discoveries.

Key words: palaeokarst, carbonate rock, result and knowledge of exploration, Tahe area

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