downhole safety valve online manufacture

High Pressure RTTS Circulating Valve DST Tools String Bypass Valve The RTTS Circulating valve is the full bore retrievable circulating valve, applied for drill stem testing operaion. The RTTS circulating valve ... Read More

Drill Stem Testing Hydraulic Circulating Valve 5" x 15000 psi The Hydraulic Circulating Valve called H-circulating valve is the part of drill stem testing string, it serves as a bypass around the packer or as a ... Read More

Full Bore Retrievable Circulating Valve Drill Stem Testing Bypass Valve The RTTS circulating valve is a locked-open/locked-closed valve that serves as both a circulating valve and bypass for the drill stem ... Read More

APR Tools Full Bore Retrievable Circulating Valve RTTS Tools for DST The Full Bore Retrievable Circulating Valve is the RTTS Circulating Valve in Halliburton type. The RTTS circulating valve is used in drill ... Read More

Drill Stem Testing Tools Rupture Disc Circulating Valve 5" x 15000psi The rupture disc circulating valve is short for RD circulating valve, which is the part of DST tools and used for drill stem testing service ... Read More

7" RTTS Circulating Valve Full Bore Retrievable Circulating Valve The RTTS Circulating Valve is a Full Bore Retrievable Circulating Valve in Halliburton type. The RTTS circulating valve is applied for drill ... Read More

Drill Stem Testing Hydraulic Circulating Valve 5" x 15000 psi The Hydraulic Circulating Valve is the part of drill stem testing string, it serves as a bypass around the packer or as a circulating valve to ... Read More

DST Tools Dual Action Ball Valve For Oil Well Donwhole Testing The Dual Action Ball Valve is the part of DST tool string, the dual action ball valve is controlled by the annular Rupture disc,also called rupture ... Read More

Multi-Cycle Circulating Valve For Drill Stem Testing in Cased Hole Introudction of DST OMNI Valve The Multi-Cycle Circulating Valve is the part of drill stem testing tool string. It is also called OMNI Valve in ... Read More

Cased Hole Big John Jar For Drill Stem Testing High Pressure Hydraulic Jar The Big John Jar is a kind of hydraulic jar which is Halliburton type. The Big John Jar is used as a safety tool in the well downhole ... Read More