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介绍了吐哈油田防漏工艺技术,该技术是针对吐哈井漏特点和原因以及几年来防漏堵漏的实践而研究摸索出的一整套技术。它包括加FC提高地层耐压能力,合理降低泥浆密度,改善泥浆流变性为主的防漏工艺技术和以随钻、胶凝、桥塞法为主的堵漏工艺技术。该技术在现场应用中取得良好的效果和显著的经济效益。特别是在1991年全面推广应用后效果更为显著,万米漏失率由1990年的4.8次/万m下降到2.20次/万m,堵漏一次成功率由89.7％提高到92.5％。
The technology of leakage prevention technology in Tuha Oilfield is introduced. The technology is a set of technologies that are explored for the characteristics and causes of the leakage in Tuha and the practice of leakage prevention and plugging in the past few years. It includes plus FC to improve formation pressure capability, reasonable to reduce the mud density, improve the flow of the mud-based leak-proof technology and drilling, gelling, plugging the main plugging technology. The technology has achieved good results and significant economic benefits in the field application. In particular, the effect was more pronounced after being fully popularized and applied in 1991, the loss rate of 10,000 meters dropped from 4.8 times per 10,000 meters in 1990 to 2.20 times per 10,000 meters, and the success rate of plugging once increased from 89.7% to 92.5%.