过去我队钻进松软、塑性、易被冲洗液冲毁的砂质粘土、粘土等岩石时，采用普通双动双层岩心管取心。其缺点是钻进效率低，岩心不易从岩心管中敲出，岩心管易损坏。在技术革新运动中，我机工人创造出了木质分水器。其优点不仅制作简单、不影响钻进效率，同时保证了高的岩心采取率，初试十个回次，岩心采取率都在85％以上。 In the past my team got into the soft, plastic, easily washed by liquid flushing sandy clay, clay and other rocks, the use of ordinary double-acting double-core tube coring. The disadvantage is the low drilling efficiency, the core is not easy to knock out of the core tube, core tube is easy to damage. In the technological innovation movement, I machine workers to create a wooden water separator. Its advantages not only make simple, does not affect the drilling efficiency, while ensuring a high core take rate, the first test of ten times, core take rate of 85%.