APPLICATION OF GEOLOGICAL 3-D MODELING AND DIGITAL SIMULATION IN OIL DEPOSIT EXPLORATION IN YOUFANGZHUANG OIL FIELD
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摘要: 通过鄂尔多斯盆地油坊庄油田定31井区侏罗纪延长组长1油藏三维精细地质模型的建立,对该区油田地质储量、采油量、含水率和压力等进行了数值历史拟合,摸清该区剩余油的分布规律:剩余油主要分布在构造高部位、沉积主河道注水未波及部位、生产井泄油半径之外和生产井未补孔部位.针对该区剩余油的分布规律制定了新钻调整井和老井侧钻、注采井网完善、采油工艺挖潜3种方法进行开发方案调整,并对调整后的开发技术指标进行了数值模拟预测.Abstract: Through geologic 3-D modeling for the C-1 reservoir in D-31 well area of Youfangzhuang oil field in Ordos Basin,the distribution of residual oil in the area is studied by numerical fitting on geologic reserves,oil production,water cut and pressure.The residual oil is essentially distributed on structural high,un-flooded main channel of deposit,outside of drainable area of well and production well without perforation.To various distribution patterns of residual oil,three methods are developed for production adjustment,including new adjusting well and sidetracking of old wells,perfection of injection production pattern,and productin engineering potential development.The estimation for production index indicates that the numerical modeling and production adjustment are effective.
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Key words:
- Ordos /
- Youfangzhuang Oil Field /
- D-31 well area /
- C-1 reservoir /
- digital simulation /
- residual oil
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