ISBN: 9787502157241 - 井下作业 (1 Ergebnisse)

paperback. Zustand: New. Paperback. Pub Date: 2006 Pages: 318 Publisher: Petroleum Industry Press petroleum Vocational planning materials: underground work includes completion of basic concepts; underground work equipment and tools to use; focuses on trial oil and gas testing. hydraulic fracturing. acid treatment. oil wells and casing repair. sidetracking technology. oil wells channeling through to find leakage and plugging of the sand control. anti-wax and water shutoff protection technology and process oil and gas . …