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Dummy and Equalizing Valves |
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D Series Valves are installed in side pocket mandrels by wireline to block the mandrel's
injection gas ports. Dummies can be run prior to or after completion for testing tubing,
packers and other equipment. In new installations, dummies can be retained in the
mandrels until gas lift valves are required to maintain production. Then, dummies are
pulled and gas lift valves installed by wireline. Also during the life of the well, gas lift
valves installed above the fluid level can be replaced with dummies to block off injection
gas. They are available in 1 and 1-1/2 inch sizes.
ED Series Equalizing Valves with integral latches are designed to equalize tubing and
casing pressure and or to circulate prior to pulling the valve. They are also available in
both 1 and 1-1/2 inch sizes.
To equalize pressure, a pulling tool pushes the inner core downward, shearing a pin and
allowing circulation or equalization. When the core moves down, the pulling tool collets
latch over the fish neck and the valve is pulled in the usual manner. This tool is designed
so that both equalizing and pulling operations can be performed in one wireline run. It is
also possible to leave the valve in the side pocket mandrel for continued circulation. This
is accomplished by shearing down on the inner core with a special tool. The valve may
be pulled out at a later date with a standard pulling tool.
STANDARD SERIES MODELS
D-14R: 1½ inch wireline-retrievable dummy valve for TG or T Mandrels with TG, RK, RM
and T2 Latches.
DM-14R: 1 inch wireline-retrievable dummy valve for TM Mandrels with BK-2 and M
Latches.
DT-14R: 1½ inch wireline-retrievable, high-temperature dummy valve for TG or TP
Mandrels with TG, RK, RM and T2 Latches.
DTM-14R: 1 inch wireline-retrievable, high-temperature dummy valve for TMP Mandrels
with BK-2 and M Latches.
ED-30R: 1½ inch wireline-retrievable equalizing dummy valve for TG or TP
Mandrels with an integral Latch.
EDM-30R: 1 inch wireline-retrievable equalizing dummy valve for TMP Mandrels
with an integral BK-2 Latch.
Both of these valves may be equalized and pulled with one wireline run.
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| Engineering Data for Dummy and Equalizing Valves |
| Type |
Assy. No. |
Nominal OD (inch) |
Packing OD (inch) |
Latch Or End Conn. |
Running Tool Type |
Pulling Tool Type |
Mandrel Type |
| Upper |
Lower |
| D 14R |
170-03 |
1-1/2 |
1-9/16 |
1-1/2 |
TG, RK, RM T2 |
RTG, TER |
PTG, TRP |
TP |
| DM 14R |
170-01 |
1 |
1-1/32 |
1-1/32 |
BK-2, M |
MR |
MP |
TMP |
| DT 14R |
170 |
1-1/2 |
1-9/16 |
1-1/2 |
TG, RK, RM T2 |
RTG, M, TER |
PTG, TRP |
TP |
| DTM 14R |
170-02 |
1 |
1-1/32 |
1-1/32 |
BK-2, M |
MR |
MP |
TMP |
| ED 30 R |
170-XXX |
1-1/2 |
1-9/16 |
1-1/2 |
TGP, RKP, TFA |
RTG, TER |
PTG, TRP |
TP |
| EDM 30 R |
170-08 |
1 |
1-1/32 |
1-1/32 |
BKP |
MR |
MP |
TMP |
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