摘要
CNPC's drilling fluids sector, being one of the important components of the company's engineering service business,
CNPC＇s drilling fluids sector, being one of the important components of the company＇s engineering service business, had experienced a golden development phase as the company continuously expanded its engineering service activities in the last decade. The development of drilling fluids had played a crucial role in fulfilling the company＇s goal of drilling more than 1000 wells （among which about 350 wells are UBD） and an annual drilling footage of 27 million meters.
