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为了解决在复杂地层钻进中,发生水敏性坍塌和缩径的问题,我们研用了钾盐(氯化钾)聚丙烯酰胺低固相泥浆,在生产实践中收到了较好的效果。应用情况 1.在柏杖子矿区的应用柏杖子矿区位于燕山期弧形构造、北北东大断裂之转折部位,且为新华夏与华夏构造体系的交汇处。岩浆活动频繁,区内构造错综复杂。岩石破碎严重,大部分呈碎块或颗粒状,节理、片理发育。主要岩石有页岩、
In order to solve the problem of water-sensitive collapse and diameter reduction during the drilling of complicated formations, we have studied the low solids slurry of polyacrylamide with potassium salt (potassium chloride) and have achieved good results in production practice. Application 1. Application in the Baizhangzi Mining Area The Baizhangzi Mining Area is located in the Yanshanian arc structure and the turning point of the North-east and East-East faults and is the junction of the New China and Huaxia structural systems. Magmatic activity is frequent and the structure in the area is intricate. Broken rock serious, most were pieces or granular, joint, film development. The main rock has shale,