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Address: No.25, Cross Building, Gaoxin 6th Road, Hi-tech Zone, Xi'an, China
Contact name:LEE
XI 'AN ZZ TOP OIL TOOLS CO.,LTD |
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Drill Stem Testing Tools Sleeve Type Drain Valve For Well Testing
The Sleeve Type Drain Valve is used in drill stem testing service
and installed between any two valves that may come out of the hole
with pressure or fluid trapped between them. Pressure is relieved
by installing the drain collar and drain nipples on the drain
valve. Valves, lines, or sample bottles may be attached to the
drain nipples depending on the desired disposition of the fluid in
the string. After the drain collar assembly is attached, the ports
in the tool are exposed by using a chain wrench or pipe wrench to
rotate the drain nut, which moves the
sliding sleeve.
When the ports in the sleeve are aligned with the ports in the body
of the tool, the fluid may be drained.It is also possible to trap a
large volume fluid sample between two valves if a sample chamber of
some kind (tubing, drill collar,etc.) is placed between the valves.
In most cases, the drain valve would be run at the bottom of the
sample chamber to facilitate transfer. This will not be a PVT
sample.
Technical parameter of Sleeve Type Drain Valve
| Size OD | 127.5mm(5”) | ||||||||||||||||||||||||||||||
| ID | 57mm | ||||||||||||||||||||||||||||||
| Length | 1159mm(Depends on Connections) | ||||||||||||||||||||||||||||||
| Working Pressure | 105Mpa | ||||||||||||||||||||||||||||||
| Tensile Strength | 1779KN | ||||||||||||||||||||||||||||||
| Torque Strength | 27kN.m | ||||||||||||||||||||||||||||||
| Working Temperature | -29oC~204oC | ||||||||||||||||||||||||||||||
| Service | H2S NACE MR0175(Above 175F) | ||||||||||||||||||||||||||||||
| Connection Thread | 3 1/2” IF BxP, 3 7/8” CAS. BxP | ||||||||||||||||||||||||||||||
