目前国内共有油水井21.6万口，年修井量在20万井次以上，且每年以近2万井次速度增长。如此浩大的作业量普遍采用常规修井技术施工，即采用放喷降压和洗压井方式作业，对油气田开采成本和环境影响构成了巨大的压力。辽河油田自主研发的带压修井工艺技术，正是转变发展方式，改进作业手段，走高效、低耗、零排放的一项最佳采油工程技术。%Currently in China, there are a total of 216,000 oil-water wells, workover wells are more than 200,000 every year, and growing rate nearly 20,000 wells every year. The conventional workover technology is used in workover, namely blowout and pressure-relief and pressure washing treatment, which affects the cost of extracting oil and gas fields and the environment. The workover treatment under pressure researched and developed by Liaohe Oilfield is a best oil recovery engineering technology with changed treatment way, high efficiency, low energy consumption and zero release.
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