Pipeline Crossing Services
Oil and gas pipelines often cross the paths of rivers and streams. If a new pipeline is to be installed below the riverbed, or an existing pipe has to be inspected or repaired, the work area along the alignment of the pipe must be isolated, to support dewatering efforts. Depending on the scope of work, a “U-shaped” AquaDam cofferdam may be used to isolate a work area along one bank, or a pair of AquaDams, extending from bank to bank, up- and down-stream of the work area. Adequate Flow Diversion and Bypass capacity are extremely important; this usually takes the form of pumps, pipes, or temporary ditches dug around the work area.
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While directional drilling has made open-cut trenc...
While directional drilling has made open-cut trenches less common, pipe inspection and repair still requires open-cut excavation. The AquaDam is an effective barrier when used to isolate the intended work area. AquaDams should be placed away from the excavation.
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