CONTROL SYSTEM FOR SURFACE
MOUNTED BOP STACKS
The control system for surface mounted
BOP stacks is critical for well control. The system is integrated
with mechanical, electrical, hydraulic, pneumatic, information
technology. The products not only meet the requirements of domestic
standards but also has got the certification of API Spec. 16D. BPM
is the first one in China, the ninth in the world to acquire the
certificate.
The BPM control system for surface
mounted BOP stacks is characterized with following features:
1. The system is equipped with two pump
groups. Electric pump with different flow rate and air-operated oil
pump which ensures the system to work normally in case of power
failure.
2. The design of accumulator unit meets
the requirement of closing all BOP stacks and opening hydraulic
valve. If any accumulator bottle failed, the total liquid loss will
not exceed 25%. BPM can offer the accumulator with ASME mark that
complies with the requirements of API Spec. 16D.
3. The pressure of annular preventer
circuit in control system may be adjusted by remote air-operated
regulation. In case of sudden failure of air supply, the pressure
can be reset to the initial set value automatically. The control
manifold of the remote control panel is equipped with an orifice as
an inlet of the pressure source. For example, the nitrogen backup
system offered by BPM provides emergent auxiliary energy. If the
accumulator and/or the pump cannot provide the control manifold with
enough power fluid, the nitrogen backup system may be used to
provide high- pressure air to close the preventer. The nitrogen
backup system may provide emergency air supply for the driller's
panel and the auxiliary control panel.
4. The system may be provided with an
alarm device. It monitors the accumulator pressure, air supply
pressure and the liquid level in oil tank. When the above parameters
exceed the alarm limits, the signal of sound and light will be
given.
5. The system can be equipped with
auxiliary control panel. Air-operated control is adopted in the
auxiliary control panel. The system may be operated by driller panel
and/or auxiliary control panel may control the remote control panel.
6. The system can also be equipped with
electric heating device of oil tank and air cable. The system may
also be equipped with housing with air-conditioner, explosion-proof
electrical heating board and explosion-proof air-conditioner.
7. Besides the products listed in the
table, we can design tailor-made special models according to the
customer's requirements.
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