Abstract: Using horizontal skimming tank as an skimming unit after oil water settled, added relevant raise pressure equipment and matching technology, this named the facility sewage treatment technology. The technology has solved the problem that since there is not sewage treatment equipment, sewage must be transported out and the fault itself need fresh water to supplement energy in Xi48, Qiang26 and Gao29 transport oil station. After using the facility sewage treatment technology, the fault can used up the sewage itself, so the fresh water was saved and formation damage was avoided.