Drilling Fluid & Completion Fluid (CN 13-1118/TE, ISSN 1001-5620, postal distributing code 18-423), was first published in 1983, distributed at home and abroad. It is the only academic journal comprehensively reporting drilling fluid and completion fluid technology. It is governed by China National Petroleum Corporation (CNPC) Ltd., co-sponsored by CNPC Bohai Drilling Engineering Co., Ltd. and PetroChina Huabei Oilfield Company, and conducted by the Research Institute of Engineering Technology of CNPC Bohai Drilling Engineering Co., Ltd. It is a bimonthly, A4-sized, full-color periodical issued at the end of odd-numbered months.