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Potential oil and gas exploration areas in Qaidam Basin
Fu Suotang
(PetroChina Qinghai Oilfi eld Company)
Abstract: The latest resource evaluation results show that the Qaidam Basin contain sizable hydrocarbon resources, with conventional
8 8
resources of 61.7×10 t and tight oil resources of 0.86×10 t as well as abundant residual resources, providing a base for realizing large-scale
discoveries and sustainable development. To construct the 10 million-ton class oil/gas fi elds on the plateau with long-term stable production,
new breakthroughs and discoveries are highly expected through the existing exploration and development operations. In accordance with
overall evaluation of the petroleum geological conditions within the basin and the exploration practices in the Kunbei, Yingdong, Dongping
and Zhahaquan areas, it is proposed that paleouplift at piedmont, paleoslope at the basin margin and late active tectonic zones inside the basin
control the general hydrocarbon migration and preservation, while hydrocarbon-rich sags, fault-unconformity conducting system and superior
source-reservoir assemblage control the intensive hydrocarbon accumulation. Accordingly, it is
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