Casing & Tubing
Casing & Tubing is a steel pipe column installed in the drilling wellbore, which is combined with the well wall through cementing to form a stable wellbore structure. It belongs to the "trunk pipeline" of the oil and gas well, extending from the wellhead to the target formation, and is used to maintain the integrity of the wellbore, isolate different formations (such as water layers, high-pressure layers, etc.), and provide a channel for subsequent production.
Size Range
Outer diameter: 1.315"- 20"
Wall thickness: 0.133"-0.500"
Length: R1(group1), R2(group2), R3(group3)
Standard & Grade
API 5CT J55, K55, N80, L80-1, L80-9Cr, L80-13Cr, P110
Types of Thread
API standard thread
STC (short round thread)
LTC (long round thread)
BTC (trapezoidal thread)
Special thread (Premium Connection)
Metal-to-metal seal (such as VAM, FOX, Hydril).
High pressure and bending resistance, suitable for high temperature and high pressure (HPHT) wells.
Representative brands:
VAM® (Vallourec)
TMK (Russian Steel Pipe Company)
Hydril Wedge (National Oilwell)
简体中文版
WhatsApp
WeChat