Study and field application on broken-down tecnology of acoustic and negative pressure

Shibao Yuan
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Abstract

Due to the damage and sanding of the formation, the oil productivity is severely affected. The applicability of the conventional flowing technology with gassy water is very limited. The effect of broken-down is not very satisfying. In order to solve this problem above mentioned, this paper proposed the Acoustic Assistant drainage and Broken-down Technology. This technology combines the Acoustic Assistant drainage with the flowing technology with gassy water together. Through the common function of acoustic vibration and flowing with gassy water, the sweeping areas are enlarged, at the same time, the back-drainage of the formation is strengthened, which makes the ultimate effect of broken-down is improved. This technology has been widely applied in the GUDAO oilfield, SHENGLI, the effect is obviously better than that of the conventional flowing technology with gassy water. It has a good effect on new wells, the wells with long time shut-in and the wells with low productivity.
声负压击穿技术的研究与现场应用
由于地层的破坏和出砂,严重影响了原油产量。常规含气水渗流技术的适用性非常有限。坏掉的效果不太令人满意。为了解决上述问题,本文提出了声辅助排水击穿技术。该技术将声波辅助排水技术与含气水流动技术相结合。通过声波振动和含气水流动的共同作用,扩大了清扫面积,同时加强了地层的反排,提高了最终的破岩效果。该技术已在胜利孤岛油田得到广泛应用,效果明显优于常规含气水渗流技术。对新井、关井时间较长的井和产能较低的井均有较好的效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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