埕北-30潜山太古界裂缝性油藏裂缝分布预测

Prediction of Fracture Distribution of Chengbei-30Buried Hill Fractured Reservoir in Shengli Oil Field

针对埕北30潜山太古界裂缝性油藏,以岩芯分析、岩石力学实验、构造及应力场演化史等资料为基础,建立了地质模型及力学模型,模拟计算了应力场数值,得到了构造应力场的应力及其方向的分布;并根据岩石破裂准则,计算了岩石破裂率的分布.从而,研究预测了埕北-30潜山太古界裂缝性油藏构造裂缝的发育分布及裂缝走向.对定量描述成果与实际资料进行了对比检验,结果表明该成果具有一定的可靠性.

Chengbei-30 buried hill Achaean group fractured reservoir was studied using data of core analysis, rock mechanics test, structure evolvement analysis, and stress field analysis. The geological and mechanical models were established and the stress field was simulated to obtain the distribution of stress. The rock breaking rate was calculated based on the criteria of rock rupture. In addition, the development and strike of fractures in the research area were predicted. Finally, the result of quantitative description was compared with that of the practical data, indicating that the quantitative analysis is reliable.