Once a well has been drilled, if it is to become a production well, the well must undergo completion. While drilling a well cuts through the rock formations and allows drilling engineers to reach the reservoir below...

Tubing is pipe used for the transportation of crude oil and natural gas from an oil or gas layer to the surface after drilling is complete. It is made to withstand the pressure generated from the extraction process ...

A short length of pipe used to connect two joints of casing or tubing. A casing or tubing coupling has internal threads (female threadform) machined to match the external threads (male threadform) of the long joints of casing. ..

Pup joints and varying lengths of tubing and casing are used to adjust the production string length as close as possible to the desired value. Then the adjustable union or joint is installed, rotationally adjusted...

The slotted liner is mainly used to the water and oil reservation layer without much sand. It’s function is prevent rock bits dropping into the well bore. The working principle is allowing the certain size and coming through the ...

Major grade grades: Grade10, 20 (negotiated, can also supply other special grade of steel tube. Accept the special requirements of the customer orders, such as the implementation of Q/320204AAAE02-2006 standard enterprise standard mechanical piping)...