一、开孔前的泥浆配料准备 1.在水源系统装满25～30秒的原始泥浆10～12吨左右; 2.筛好锯末3～5米~3; 3.准备些石灰听用; 4.浸泡锯末液[在1米~3水箱中放10土篮子锯末,浸过后,加入15～20公斤氢氧化钠(火碱)]; First, mud preparation before drilling Ingredients 1. In the water system filled with 25 to 30 seconds of the original mud about 10 to 12 tons; 2. Sieve a good sawdust 3 ~ 5 m ~ 3; 3. Preparation of lime to listen to; 4 Soak the sawdust liquid [Put the 10 earth basket sawdust in 1m ~ 3 water tank, after soaking, add 15 ~ 20kg sodium hydroxide (caustic soda)];