摘要
地下水封洞库作为近年来兴起的一种新型储油方式,其埋深的确定是工程需要重点考虑的问题,其直接影响工程质量、安全和造价。结合湛江地下水封石油洞库的工程实例,探讨了确定洞库埋深的一整套流程。首先根据水封条件和岩体质量对洞库顶面埋深进行初步确定,然后采用Flac3D计算软件对湛江地下水封石油洞库的库区进行分析,通过模型的建立和边界条件的利用,对全断面开挖的两组洞罐的围岩力学行为特征进行数值模拟研究,确定出较为合适的洞库埋深高程,最后从工程造价的角度对模拟埋深结果进行对比优化,从而确定出水封石油洞库的最优埋深。工程应用结果表明,该方法具有一定的实用性,可为今后其他类似工程提供参考。
Underground water-sealing oil storage in rock cavern is a new oil storage method developed recently. Determination of cavern buried depth is the key in the project and it directly affects project quality, safety and costs. Based on a project in Zhanjiang City, a complete process is discussed to determine buried depth of the rock cavern. The rock cavern top burial depth is preliminarily determined based on water sealing conditions and rock quality and then Flac3D calculation software is used to analyze the area of underground water-sealing oil storage in rock cavern in Zhanjiang City. Numerical simulation study is carried out on the mechanical behavior characteristics of surrounding rocks in the two groups of caverns subject to full face excavation by modeling and boundary conditions to determine the more appropriate buried depth of the rock cavern. Finally, buried depth simulation results are compared and optimized from the aspect of project costs in order to determine the optimal buried depth of the water-sealing oil storage in rock caverns. As shown from the project application results, the method is of certain practicality and can provide a useful reference to the other similar projects in the future.
出处
《油气储运》
CAS
2013年第5期521-525,共5页
Oil & Gas Storage and Transportation
关键词
地下水封洞库
埋深
水封条件
定量化方法
underground water-sealing oil storage in rock caverns, buried depth, water sealing conditions, quantitative method
