西南石油大学学报(自然科学版)

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Tight Sandstone Reservoir“Sweet Spot”Prediction of Badaowan
Formation in Baka Region

Wu Yong1, Kang Yili1, Ji Weihua2, Liu Shiwen3, Sheng Rong4   

  1. 1. State Key Laboratory of Oil Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
    2. Expolration and Development Research Institute,Tuha Oilfield Company,PetroChina,Hami,Xinjiang 839009,China
    3. Xinjiang Geophysical Exploration Company,BGP Inc.,CNPC,Urumqi,Xinjiang 830016,China
    4. Karamay Electric Plant,Xinjiang Oilfield Company,CNPC,Karamay,Xinjiang 834000,China
  • Online:2013-12-01 Published:2013-12-01

Abstract:

According to the reservoir microscopic geostatistical analysis,the results show that the granularity of sandstone is in
relatively good correlation with reservoir porosity and permeability in Baka Region. By building log interpretation model and
with gamma curve,we get the parameters of granularity of sandstone and reservoir feater. Based on the geological reservoir
microscopic parameter statistical analysis and logging model calculation results,and with the reservoir microscopic geological
statistical parameter inversion and coherence analysis technology,we made prediction of tight sandstone reservoir sweet spot
distribution of Badaowan Formation. The sweet spot of tight sandstone reservoir in Badaowan Fortamtion are mainly distributed
in high faulted anticline of Kekeya tectonic belt and adjacent to the slope area. The tight sandstone reservoir of Badaowan is of
granularity coarser,and relatively high permeability;within a certain range,the porosity is relatively high,which is favorable
reservoir distribution area and favorable exploration area for tight sandstone gas reservoir in Baka Region.

Key words: Turpan&ndash, Hami Basin;Baka Region;Badaowan Formation;granularity of sandstone;geostatistics;parameter
inversion