The different types of Tubing used in the oil extraction process: the surface oil casing protects the wells from shallow water and shallow air, supports the wellhead equipment and maintains the other layers of the casing. Technical oil casing to separate the pressure at different levels, so that the amount of normal drilling fluid circulation and protection of production casing. In order to install anti-bursting devices, leak-proof devices and tail pipes in the drilling. The oil-bearing casing exports oil and natural gas from the storage layer beneath the surface. Used to protect the wells and stratify the drilling mud. Oil casing production, the outer diameter is usually 114.3 mm to 508 mm.

To protect the wells from shallow water and shallow air, to support wellhead equipment and to maintain other layers of casing weight.

Technical oil casing to separate the pressure at different levels, so that the amount of normal drilling fluid circulation and protection of production casing. In order to install anti-bursting devices, leak-proof devices and tail pipes in the drilling.

Oil casing - the oil and natural gas from the surface under the storage layer derived. Used to protect the wells and stratify the drilling mud. Oil casing production, the outer diameter is usually 114.3 mm to 508 mm.

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