Abstract
The channel sand bodies in the lower section of the Sifangtai Formation in the Songliao Basin are rich in uranium resources. The development of channel sand body distribution prediction is of great significance for guiding the exploration of sandstone-type uranium deposits. In this study, the wave-indicated inversion technology was used to predict the thickness of the sand body, the root mean square amplitude attribute was used to identify the plane shape of the river channel, and the seismic facies analysis and tracking technology of the section was used to identify the channel period and finely describe the channel distribution. The results show that there are two stages of channel sand bodies in the lower part of Sifangtai Formation, and the sand bodies are distributed in a wide range. The maximum thickness of single stage sand bodies is about 15m, with an average of 8 meters. The thickness of the sand body where the two phases of the river are superimposed is the largest, up to 28m, which is a favorable ore-bearing location revealed by current exploration.
Highlights
Sandstone-type uranium deposits are the main type of uranium exploration in my country
Important prospecting breakthroughs have been made in the Daqing Placanticline and its surrounding areas in the northern Songliao Basin[1], and industrial uranium ore bodies and uranium mineralization points have been discovered in the channel sand bodies of the lower section of the Sifangtai Formation
On the basis of previous studies, through statistical analysis of the natural gamma values reflected by thousands of wells in the Songliao Basin, it is proved that the Sifangtai Formation has obvious uranium anomalies
Summary
Sandstone-type uranium deposits are the main type of uranium exploration in my country. Important prospecting breakthroughs have been made in the Daqing Placanticline and its surrounding areas in the northern Songliao Basin[1], and industrial uranium ore bodies and uranium mineralization points have been discovered in the channel sand bodies of the lower section of the Sifangtai Formation. On the basis of previous studies, through statistical analysis of the natural gamma values reflected by thousands of wells in the Songliao Basin, it is proved that the Sifangtai Formation has obvious uranium anomalies. The use of waveform indicating inversion technology and seismic facies analysis technology is used to predict the channel sand bodies in the lower section of Sifangtai Formation, and to.
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