地质钻探堵漏新技术的初步研究

对钻探堵漏技术的现状进行了分析。介绍了近期针对地质钻探堵漏开展的高强度快失水堵漏、高强度化学触变堵漏、溶胀型随钻堵漏材料以及成膜钻井液技术阶段科研成果。提出了加强漏失层特性判断与堵漏方法的关联性,广谱型堵漏技术,复合堵漏材料和堵漏技术集成化,高效随钻防漏材料和防漏冲洗液体系,膨胀管封堵技术研究等地质钻探堵漏技术的重点研究方向。

Preliminary Study on Control of Lost Circulation for the Geological Drilling

With the brief discussion on the status of lost circulation control, the paper introduced the recent scientific research achievements in view of the high-strength fast dehydration plugging, the high-strength chemical thixotropic materials plugging and the swelling plugging materials, as well as the film-forming drilling fluid technology. The paper also presents that the key research directions in the relevance of loss zone characteristics judgment and plugging measures; broad spectrum plugging technology; integration of composite plugging materials and leak-proof technology; high-efficient materials for loss circulation control while drilling and leak-proof washing fluid system; and expansion tubular sealing technology.