Quantitative Prediction Technology of High Quality Volcanic Reservoir and Its Application
Received date: 2011-07-03
Revised date: 2011-09-02
Online published: 2012-02-10
The prediction of volcanic reservoir is still in the qualitative description stage of the appearance geometry.In this paper,we discuss the qualitative prediction of high quality volcanic reservoir which is mainly welded breccial tuff with unfilled pores in the drilled well Xia 72 of Wuxia area,Junggar basin,to promote the volcanic reservoirs prediction technology in the direction of quantification.After the fissure eruption of Permian volcano in the Wuxia area is described,we consider that the distribution of high quality reservoir is controlled by the volcanic vent,eruption fracture and the ancient landform.The prediction methods of the high quality volcanic reservoir are documented as follows: firstly,the distribution of welded breccial tuff is determined by crater identification,eruption fracture description,ancient palaeogeomorphology restoration as well as multi-attribute clustering analysis.Secondly,the quantitative relationship between pore filling degree and velocity is established by result verification of both forward modeling and inversion.Finally,the flat RMS amplitude and velocity distribution is predicted in the scope of the fused tuff breccia distribution.According to quantitative relationship,the distribution of the high quality reservoir is gotten.The predicted result has been confirmed by drilled hole,indicating the quantitative prediction of this technology applicable,and it is valuable to be promoted in the similar areas.
Tan Kai-jun,Zhang Fan,Pan Jian-guo,Xu Duo-nian,Huang Lin-jun,Chen Yong-bo . Quantitative Prediction Technology of High Quality Volcanic Reservoir and Its Application[J]. Natural Gas Geoscience, 2012 , 23(1) : 175 -180 . DOI: 10.11764/j.issn.1672-1926.2012.01.175
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