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在磷矿钻探工程施工中,岩矿芯采取率和孔斜度是工程质量的主要指标之一。因此,必须按地质设计的要求,保持岩矿芯的采取率、纯洁度、完整性和代表性,不受污染,以反映其在井底的真实程度,避免作出错误的评价和判断。 为了准确无误地完成预计见矿点和终孔位置,避免因钻孔实际轴心线位移超过设计范围,须准确地使钻孔深度、顶角、方位角这三项数据达到设计要求,使获得的地质资料更加完善可靠。所以,加强对磷矿钻探中取芯、防治斜技术的研究,探讨其规律,总结经验教训具有现实的意义,现仅就几点看法与磷矿钻探的同志们商榷。
In the phosphate rock drilling project construction, rock core take rate and hole slope is one of the main indicators of project quality. Therefore, according to the requirements of geological design, it is necessary to keep the rock core and ore core collection rate, purity, integrity and representativeness free from pollution so as to reflect the true degree of rock bottom and to avoid making wrong evaluation and judgment. In order to accurately and accurately predict the location of the mine point and the final hole, and avoid the actual axial displacement of the drilling hole exceeding the design range, the three data of drilling depth, apex angle and azimuth must be accurately met to meet the design requirements, The geological data more perfect and reliable. Therefore, to strengthen the research on coring and prevention and control of inclined rock in phosphate rock drilling, to explore its regularity and to summarize the experiences and lessons have realistic meanings. At present, only a few opinions are discussed with comrades of phosphate rock drilling.