几年来，我队施工的矿区，因地层复杂，坍塌漏水严重，导致孔内事故多，生产效率低，给正常生产带来很多困难。在金刚石钻进的钻孔中，由于孔壁垮塌和润滑冲洗液的严重漏失，严重地影响了小口径金刚石钻进的推广和发展。为了解决这一问题，从一九七五年下半年开始，我们进行了钻孔护壁堵漏试验研究工作，在局、队各级党组织的重视及领导下，组成了“三结合”的攻关小组，在局综合研究队紧密配合及技术指导下，我们先后选用了“水泥混合液”、“氰凝”和“尿醛树酯”等不同的护壁堵漏材料，在九个钻孔中的18个孔段，进行了灌浆试验，共灌注38次，其中“氰 In the past few years, the construction of mine in our team has been complicated by strata and severe water leakage due to collapse. As a result, many accidents in the holes and low production efficiency have brought many difficulties to normal production. In the drilling of diamond, the popularization and development of small diameter diamond drilling have been severely affected by the collapse of the hole wall and the serious loss of lubrication fluid. In order to solve this problem, starting from the second half of 1975, we conducted a pilot study on the plugging and plugging of boreholes. Under the guidance and attention of party organizations at all levels of the bureau and the team, we have formed a “triple combination” Under the close co-ordination and technical guidance of the comprehensive research team of the bureau, we have successively selected different wall plugging materials such as “cement mixture”, “cyanide condensate” and “urea formaldehyde resin”. Among the nine drilling holes 18 holes, grouting test, a total of 38 perfusion, including "Cyanide