Meilong Tube supplies a whole range of products to the oil and gas sector, and it’s one of our most important markets. You’ll find our high performance tubes successfully used in some of the most aggressive subsea and downhole conditions thanks to our proven track record in meeting the strict quality requirements of the oil, gas and geothermal energy industries.
Improving technology has extended the range of ways in which oil and gas fields can be exploited, and increasingly projects require the use of long, continuous lengths of stainless steel control lines. These are employed in a variety of applications including hydraulic controls, instrumentation, chemical injection, umbilicals and flowline control. Meilong Tube supplies products for all of these applications, and more, lowering operating costs and improved recovery methods for our customers.
Thanks to advances in tubular control line technologies, it is now cheaper and easier to connect downhole valves and chemical injection systems with remote and satellite wells, for both fixed and floating central platforms. We offer coiled tubing for control lines in stainless steel and nickel alloys.
For SSSV (sub-surface safety valve)
A safety valve is a valve that acts as the protector of your equipment. Safety valves can prevent damage to your pressure vessels and even prevent explosions at your facility when installed in pressure vessels.
A safety valve is a type of valve that automatically actuates when the pressure of the inlet side of the valve increases to a predetermined pressure, to open the valve disc and discharge the fluid. The safety valve system is designed to be a fail-safe so that a wellbore can be isolated in the event of any system failure or damage to the surface production-control facilities.
In most cases, it is mandatory to have a means of closure for all wells capable of natural ﬂow to the surface. The installation of a subsurface safety valve (SSSV) will provide this emergency closure capability. Safety systems may be operated on a fail-safe principle from a control panel located on the surface.
The SCSSV is controlled by a ¼” stainless steel control line that is attached to the outside of the well tubing string and installed when the production tubing is installed. Depending on the wellhead pressure, it may be necessary to keep as much as 10,000 psi on the control line to keep the valve open.