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水泥在钻探工程中的应用历史起码有五十多年了。各种钻井方法均有采用水泥进行固井(油井和水井)、堵漏、护壁、封孔、止水,甚至纠斜和处理井内事故等等。实践证明,泥浆和水泥是当前复杂地层钻进中护壁堵漏的最基本材料。特别是这几年来,我国岩心钻探工作中,使用水泥护壁堵漏得到很大发展,灌注成功率越来越高。在小口径金刚石钻孔中也正在逐步推广应用。我国水泥工业生产了许多新的水泥品种(如快硬早强水泥、矾土水泥等等)和新的水泥速凝早强剂(如红星一号、711型等),为岩心钻探注水泥护壁堵漏工作,提供了有
The application of cement in drilling engineering history for at least fifty years. Various drilling methods have used cement cementing (oil wells and wells), plugging, retaining wall, sealing, sealing, and even correct incline and handle well accidents and so on. Practice has proved that mud and cement are the most basic materials for wall plugging in the current complicated formation drilling. Especially in recent years, the core drilling work in our country, the use of cement wall plugging great development, perfusion success rate is higher and higher. In the small diameter diamond drilling is also gradually promote the use of. China’s cement industry produces many new cement varieties (such as hardened early strength cement, alumina cement, etc.) and new cement quick-setting early strength agent (such as Red Star 1, 711-type, etc.) Plugging work, provided there