论文部分内容阅读
在有窿子的矿区打鑽,由于鑽孔的设计或鑽孔打的角度(倾角、方位角)不合地質设计要求,鑽孔有可能穿过窿子。当鑽孔穿过窿子时,为了繼续鑽进,防止冲洗液的漏失,必須及时妥善的进行处理。现将我队几次对鑽孔穿过窿子的止水方法作一介紹,仅供参考。我們所採用的办法是根据鑽孔繼續鑽进的深度(窿子以下的深度)和穿过窿子时的井徑大小,下同级或大一级的套管进行处理(指能进入工作的窿子)。 1.用同级套管处理的方法:
Drilling holes in mined mining areas may require drilling through the holes due to irregularities in the design of the hole or the angle of drilling (pitch, azimuth). When drilling through the hole, in order to continue drilling, to prevent the loss of fluid, it must promptly and properly processed. Now my team several times through the hole drilling hole drilling method for an introduction, for reference purposes only. The approach we use is based on the depth at which the borehole continues to be drilled (the depth below the borehole) and the diameter of the borehole through which the borehole passes, the same level or larger casing (that is, accessible to work Hole). 1. With the same level of casing treatment methods: