钾盐矿床钻探工艺技术

Drilling Technology in Potassium Deposit

摘要:

钾盐是生产钾肥的主要原料,是我国的急缺矿种,是所有矿产资源中对外依存度比例最高的资源。由于钾石盐矿埋藏深度变化大(10～2000 m)和可溶性、吸水性、裂隙发育等特点，需要特殊的钻探工艺技术。结合国内外钾盐钻探施工经验和特点，对钾盐矿岩心钻探设备机具、钻探工艺、冲洗液等方面进行了研究。

Abstract:

Potassium salt is the main raw material for producing potassium fertilizer, and it is a shortage mineral in China with the highest import dependency. Because of its buried depths （10～2000 m), solubility, water absorption and fracture development, special drilling technology is required. According to the drilling construction experience and characteristics of potassium salt both in China and abroad, the study was made on core drilling machinery and equipment, drilling technology and flush fluid.