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金刚石钻进时遇到含钙质地层以及漏失地层,若使用一般润滑冲洗液,往往发生“破乳”或冲洗液消耗量大等问题.在这种情况下,采用润滑涂抹膏具有一定效果. 实例1.岩前白钨矿区该矿区地层上部为结晶灰岩、大理岩,下部为花岗岩,接触带为花岗岩风化层.钻孔设计为直孔.施工中大部份钻孔漏失,或冲洗液受钙侵,或风化层遇水坍塌.使用皂化油配制的乳化液严重“破乳”,使用聚丙烯酰胺配制的无固相冲洗液也难以奏效.后来使用了润滑膏,不仅可以顶漏钻进,不需停钻堵漏,而且可
When drilling diamond encountered calcium stratum and lost formations, the use of general lubrication fluid, often “demulsification” or flushing fluid consumption, etc. In this case, the use of lubricating plaster has a certain effect. Example 1. Rock pre-scheelite area The upper strata of the mine area are crystalline limestone and marble, the lower part is granite and the contact zone is granite weathering layer. The borehole is designed as a straight hole, and most of the drilling holes are lost or the flushing fluid By calcium invasion, or weathering layer collapses with water.If using saponified oil emulsions prepared serious “demulsification”, the use of polyacrylamide formulated solid-free rinse liquid is also difficult to work.Later, the use of lubricating paste, not only can drain the drill Into, without stopping drilling plugging, but also