Techcore Oil Tools Co.,Ltd,
Professional Provider & Manufacture of DST tools, Coiled Tubing Tools & Wireline Tools
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7" 70 Mpa DST Drill Stem Test Tools Full Bore Retrievable Circulating Valve
Introudction of Retrievable Circulating Valve
The Retrievable Circulating valve designed with Full opening features is applied for drill stem testing service and flow operation. The full bore retrievable circulating valve a sort of locked-open/locked-closed valve, so that the circulating valve serves as both a circulating valve and bypass.
Application of the Retrievable Circulating Valve
* Cased Hole Drill stem testing Operation
* Well flow operation in the oilfield
* Oil well fracking operation
Features and Benefits of the Retrievable Circulating Valve
* When the packer is unset to reverse fluid, the circulating valve can be locked closed when the packer is unset to reverse fluid.
* Full opening design make the retrievable circulating valve to allow tubing-type guns and other wire line equipment to pass through.
Technical parameter of Retrievable Circulating Valve
| No. | Specifications | 7 "-7 5/8" RTTS Circulating valve |
| 1 | OD | 127mm |
| 2 | ID | 60mm |
| 3 | Total Length(Compress state) | 927mm/995mm |
| 4 | Stroke | 169.7mm |
| 5 | Working pressure | 70Mpa |
| 6 | Tensile Strength | 1007KN |
| 7 | Torque Strength | 16KN·m |
| 8 | Outer yield pressure strength | 132MPA |
| 9 | Internal Yield pressure strength | 140MPA |
| 10 | Circulating port areas | 1700mm |
| 11 | Service Temperature | -20oC~+204oC |
| 12 | End connection | 2 7/8”EUE.BX4 5/32”-8UN.P 3 1/2”IF. BXP |
| 13 | Service Condition | H2S As per NACE MR 0175(>175oF) |
Retrievable Circulating Valve Inner Seal Chart
Full Bore Retrievable Circulating Valve Drill Stem Test Tools 7" - 70Mpa