KIKO
Locked-open Tester Valve Use: KIKO locked-open tester valve is a
close-open valve which is used in the cased hole、full-opening、annulus pressure operated .It not
only has ability to
repeatedly close and open
well, but also can realize to lock the ball valve in the open position
in any step during testing period. The operation mode is as
follows: Pump the operation pressure to open
well, release the operation pressure to
locked-open well, pressure again and release to close well. Structure &
Feature: KIKO locked-open tester
valve is
mainly composed of four parts, which are ball valve operating part、ratchet part、nitrogen power part and oil chamber
measuring part.Its structure is as
follows:KIKO
Locked-open Tester Valve Use: KIKO locked-open
tester valve is a close-open valve which is used in the cased
hole、full-opening、annulus pressure operated .It not
only has ability
to repeatedly close and open
well, but also can realize to
lock the ball valve in the open position in any step during
testing period. The
operation mode is as
follows: Pump the operation
pressure to open well, release the operation pressure to
locked-open well,
pressure again and
release to close well. Structure &
Feature: KIKO locked-open
tester valve is mainly composed of four
parts, which are ball valve operating
part、ratchet part、nitrogen
power part
and oil
chamber measuring part.Its
structure is as follows: 1)The particular transposition
part is composed of ratchet case、ratchet mandrel、ratchet sleeve
and ratchet guideball,
which can realize
long time locked- open function after release the pressure in the
well, and can meet
the requirements of long time operation of oil pipeline gas
lifting drainage、hydraulic
pump discharge etc. During well
open period, it doesnt need to keep
operation pressure in annulus,
which not
only avoids the long time
stress on oil casing, but also reduces
the labor intensity of oil field
workers.
2) Oil chamber
measuring partnot
only can ensure the
reliable open and
close, it
has the pressure
reliefdifference, that
is the
pressure difference of nitrogen gas pressure is higher than that of
the annulus pressure.
The effect of annulus
pressure fluctuation on the locked open well condition can be
avoided. 3) The collect fingers
enables the tool to remain in a locked open well for a long
time. 4)
The installed 4
shear pins can provide 1000PSI cut
off value, which
can
avoid opening well
caused by pressure in
halfway under
the process.
1)The particular transposition part is composed of
ratchet case、ratchet mandrel、ratchet sleeve and ratchet guideball, which can realize long time locked- open function
after release the pressure in the well, and can meet the requirements of long
time operation of oil pipeline gas lifting drainage、hydraulic pump
discharge etc. During
well open period, it doesnt
need to keep operation pressure in annulus,
which not
only avoids the long time stress on oil casing, but also reduces
the labor intensity of oil field workers.
2) Oil chamber
measuring partnot only can ensure the
reliable open and
close, it has the
pressure reliefdifference, that is the pressure difference of nitrogen
gas pressure is higher than that of the annulus pressure. The
effect of annulus pressure fluctuation on the
locked open well condition can be avoided. 3) The collect fingers enables the tool to remain in
a locked open well for a long time. 4)
The installed 4 shear
pins can provide 1000PSI cut off value, which can avoid opening well caused by pressure in
halfway under the process.