Experimental Study on Ball Sealer Diversion for Lateral Well

Abstract:

Simulation lateral well for ball sealer diversion was established in this paper. Experiments under different conditions were conducted in the laboratory. The results show that ball sealer diversion technique can really improve water injection profile. When the number of blocking balls in one layer is less than 10, flow rate change of layers is not obvious. When the number of blocking balls is more than 10, flow rate of the layer reduces quickly. When the formation variation coefficient is 0.62 and 0.79, the goal of ball sealer is very clear. Generally 42 to 48 balls are needed to achieve good diversion effect. Balls injected near the target layer can improve diversion effect, and increase of total flow rate can improve diversion effect. In the experiment, the overall utilization rate of the injected balls is from 30% to 50%, and accurate blocking rate is from 20% to 30%.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1399-1407
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1399
• Online since: May 2012
• Authors: Song Yan Li, Zhao Min Li
• Keywords: Ball Sealer Diversion, Experiment, Lateral Well, Water Injection Profile

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