Field application shows that the formate drilling fluids have excellent inhibitive capacity which is very helpful in protecting bore holes from heaving and sloughing,and keeping the reservo.

• 通过对甲酸盐保护储层的研究和钻井液处理剂的评价,研制出了适合大庆开发井应用的甲酸盐钻井液配方,并对该配方保护储层的能力进行了评价。