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Precautions for installation and construction of oil casing pipe

2020-01-07 09:25:44   COMMENT:0 HITS:
  Oil Well Casing Pipe, the quality of pipeline works shall be guaranteed in strict accordance with the specified construction measures. Before the construction and butt joint of oil well casing pipe, the relevant pipeline works shall be inspected and qualified to meet the installation requirements; the petroleum casing, pipe fittings, pipeline accessories, etc. shall be inspected and qualified with relevant certificates; the pipeline components and prefabricated parts shall be checked and correct according to the design, and the interior shall be cleaned and dried No sundries. The butt joint installation of oil well casing pipe shall be as shown in the single line diagram and installed according to the pipeline system number and prefabrication sequence number. When installing the assembly, the assembly shall be rigid enough, no permanent deformation shall occur after hoisting, and the temporary fixation shall be firm and reliable.

  The gradient direction of the horizontal section during the installation of the API 5L PSL2 GR.B Oil Well Casing Pipe shall be determined based on the principle that it is convenient to drain water and air. During the butt joint of oil well casing pipe, it is not allowed to use the methods of strong butt joint, heating pipe, adding deflection pad or multi-layer pad to eliminate the defects such as gap, deflection, staggered joint or non concentricity on the end face of the joint. The oil paint, scale, rust, etc. on the groove of the oil casing or pipe fitting and the inner and outer wall within 10-15mm shall be removed before the butt joint, showing the metallic luster. The butt joint of the oil well casing pipe shall be straight, and the deformation of the welding angle shall be measured 200 mm away from the center of the joint.

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