Ключевые слова: background, business, clean, construction, control, crude, drilling, energy, engineering, equipment, exploration, field, flow, gas, globe, header, industrial, industry, line, manual, metal, natural, offshore, oil, operation, panel, petroleum, pipe, pipeline, piping, plant, platform, power, process, production, raw, refinery, rig, sample, sea, steel, structure, technology, tree, up, valve, well, wellhead, work,