Industries & Professions /
Petroleum technicians work in a wide variety of specialties. Many kinds of drilling technicians drill for petroleum from the earth and beneath the ocean. Loggers analyze rock cuttings from drilling and measure characteristics of rock layers. Various types of production technicians"complete" wells (prepare wells for production), collect petroleum from producing wells, and control production. Engineering technicians help improve drilling technology, maximize field production, and provide technical assistance. Maintenance technicians keep machinery and equipment running smoothly. As of 2013, approximately 15,190 petroleum and geological technicians are employed in the United States.