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OCTG casing is used to stabilize wellbores and is typically a larger diameter pipe held in place by the borehole using cement. They are designed to help the well withstand different external forces. These operate by lining the complete borehole and are typically 4.5” to 20” OD (Outer Diameter). Usage can be divided between surface casing, intermediate casing, and production casing.
There are four different types of well casing:
1
Surface Casing
Surface casing is used to separate freshwater zones, support wellhead and blowout prevention (BOP) equipment, and protect against blowouts.
2
Intermediate Casing
Intermediate casing are placed between the surface and the production casing.
3
Production Casing
Production casing is used to line the borehole, stabilize the well, prevent collapse, and facilitate the extraction of oil or gas by allowing for the installation of production tubing and other equipment.
4
Production Liner
Production liners can be suspended from any of the previous casings and assist in cost reduction by eliminating the need to run the liner the full depth of the well.
The Speartip Tubular Difference
SpearTip Tubular is a premier oilfield pipe distributor that provides casing or tubing for your business needs. If you’re looking for OCTG casing or need a partner that works closely with OCTG suppliers from across the country, we have an extensive inventory to choose from.