投球调剖堵水技术模拟试验

SIMULATION TESTON THE TECHNOLOGY FOR CONTROLLING INJECTED-WATER PROFILES WITH FLOATING SPHERES

李会雄 栾合飞 陈听宽 罗毓珊 孙同文 刘永安 牛宗奎

Li Huixiong Luan Hefei Chen Tingkuan Luo Yushan Sun Tongwen Liu Yong’an Niu Zongkui

西安交通大学动力工程多相流国家重点实验室, 陕西西安 710049 中原油田公司采油工程技术研究院, 河南濮阳 457001

通过大量的试验观察与测量,对投球调剖堵水工艺的可行性和有效性进行了试验验证。主要考察了目标层位置、注水总流量、炮眼流量及调剖球密度与直径等因素对投球调剖效果的影响,得到了投球调剖的封堵规律及其对各层流量的调节作用规律。试验所得的规律与理论分析结果具有很好的一致性,可为油田现场操作提供指导依据。

The feasibility and effectiveness of the technology for controlling the injected-water profile in oil wells with floating spheres are experimentally verified in this paper.A great number of experiments are carried out and careful measurements are made to gain reliable data.Influence of factors, such as the position of the target stratum layer, the total flow rate of the injected water, the outflow through shot holes, and the density and diameter of the spheres and so forth, the effectiveness of this technology is investigated.The moving behavior of the floating sphere and the mechanism for the floating sphere to automatically adjust the injected-water flowing to each stratum layer are obtained.It is found that the experimental results are in very good agreement with the previous theoretical analysis, indicating that this technology can effectively adjust the outflow of each layer under various injection conditions, and it is a promising technique for controlling water flow profile in injection wells.The data obtained in this study are very helpful and instructive for applying the technology to on-site oil production operations.

10.3969/j.issn.1000-7393.2002.05.013