提高储层出砂风险数值计算精度的方法

Method for Improving the Prediction Accuracy of Sand Production Risk by Numerical Computation

孟召兰 邓晗 韦龙贵 刘贤玉 张春升 季菊香

MENG Zhaolan DENG Han WEI Longgui LIU Xianyu ZHANG Chunsheng JI Juxiang

中海油能源发展股份有限公司工程技术分公司, 天津 300452; 中海石油(中国)有限公司湛江分公司, 广东湛江 524057

CNOOC Energy Tech-Drilling & Production Co., Tianjin 300452, China; Zhanjiang Branch of CNOOC Ltd., Zhanjiang Guangdong 524057, China

有限元数值计算法是目前出砂预测最有力、最通用的定量预测方法，在实际应用中常见问题是出砂预测结果与油田生产情况不吻合。为了提高出砂预测的准确性，此文在多年出砂预测实践的基础上，从室内岩石强度实验、岩石微观结构、岩石破坏准则选择以及模型校正四个环节提出了提高出砂风险数值计算精度的关键做法。应用于南海西部某油田，实际出砂井出砂条件与预测结果吻合度高达80%，为油田新井防砂决策提供了重要依据。

Finite element numerical computation is the most powerful and universal quantitative prediction method for sand production. In practical, the common problem is the result of sand production is not consistent with the production status of the field. In order to improve the prediction accuracy of sand production, based on years of experience, the authors summarized some essential processes to improve the prediction of sand production from four aspects i.e. indoor rock strength test, rock microstructure, rock failure criteria selection and the model correction. The application in some oil field in the west of the South China Sea demonstrates that the actual prediction accuracy of sand production is 80%, which provides an important basis for the optimization of sand control technology in the future.

中海油能源发展股份有限公司科研项目“渤海油田主力储层筛管挡砂效果评价”（HFKJ-GJ2014006）部分研究内容。

https://doi.org/10.3969/j.issn.1008-2336.2017.01.037