Supply BREAKOUT CATHEAD 116.12.00，MAKE UP CATHEAD 116.37.00

Our Inventory:
BREAKOUT CATHEAD 116.12.00  327KG 1pcs
MAKE UP CATHEAD 116.37.00  360KG  1 pcs


Contact Us Jining Donghong Machinery Co., Ltd
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

MAKEUP/ BREAKOUT CATHEAD

2 1/16" 5000 Psi Gate Valve available bore size 2 9/16",3 1/16",3 1/8",4 1/16",5 1/8",6 3/8",7 1/16"

We provide gate valve with connection flanged or threaded.
Our stock at competitive price.
2 1/16" 5000 Psi  Gate Valve
2 1/16" 10000 Psi  Gate Valve
2 1/16" 15000 Psi  Gate Valve
2 9/16" 5000 Psi  Gate Valve
2 9/16" 10000 Psi  Gate Valve
2 9/16" 15000 Psi  Gate Valve
3 1/16" 10000 Psi  Gate Valve
3 1/16" 15000 Psi  Gate Valve
3 1/8" 5000 Psi  Gate Valve
4 1/16" 5000 Psi  Gate Valve
4 1/16" 10000 Psi  Gate Valve
4 1/16" 15000 Psi  Gate Valve
5 1/8" 5000psi Gate Valve
5 1/8" 10000psi Gate Valve
6 3/8" 5000psi Gate Valve
6 3/8" 10000psi Gate Valve
7 1/16" 5000psi Gate Valve


Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

Supply U type Bop Viarable Ram Rubber for BOP 13 5/8" 10000 Psi / FZ35-70

Front Seal and Top Seal rubbers

Bop Ram Rubber (U Type)

Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

Supply Manual Plate Valve 2 9/16" 10000 Psi

Nominal Bore:65.1mm
Rated Working Pressure:70Mpa/10000psi
Specification Level:PSL3
Performance Level:PR1
Material Level:EE
Working Temperature:PU(-29℃-121℃）


Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

Manual Plate Valve 

BOP Hose, koomey hoses & bop control hoses

We supply High pressure BOP Control Hose meet API Spec 16D with size 3/4",7/8",1",1-1/4",1-1/2" and available 5000psi,10000psi.


Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

BOP Hose Spec.

Supply YB2-180M-4 Ex-proof three-phase induction Motor ExdⅠ, ExdⅡAT4, ExdⅡBT4，ExdIICT4

Rated output power:18.5 kw
Rated speed:1470 r/min
Rated voltage:380, 660, 1140, 380/660 and 660/1140 Volts
Ambient temperature : -20ºC to 40ºC
Degree of protection:IP 55
Insulation class:F
Weight:220 kg


Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas

YB2-180M-4 Ex-proof three-phase induction Motor

BOP testing procedures

General BOP testing procedures


• Use water to test BOP’s. The reason is that water has less compressibility than mud.

• Make up testing assembly and set in into a wellhead profile. Ensure that the casing valve must be left opened and there must be personnel monitoring the outlet of casing valve all time while testing. You must ensure that personnel who monitor the outlet must stay for from the BOP while it is being tested. The reason behind this step is to prevent pressure build up in the casing if the test plug is leaking.

• Circulate through choke/kill lines, choke manifold, standpipe manifold, and valves to ensure that all lines are full with water. This practice is for preventing pressure dropping off while testing.

• Line up cement unit and rig team shut rams and valves as per each rig specific testing sequence

• Pressure test must be low and high, respectively, and the pressure should be stabilized with minimum bleed off at least 5 minutes. Ensure that pressure recording on a chart is recorded correctly.

• Ensure that any equipment doest not pass a pressure test requirement must be reported to supervisors.

• Continue pressure testing until all equipment is tested as per each rig specific.

• Rig down testing assembly.


Note: my reference is based on API RP 53.

Reproduced Drilling Formulas

Jining Donghong Machinery Co., Ltd
Contact Us
www.dhparts.com
spareparts1960@foxmail.com
dh@dhparts.com
Mobile/WhatsApp: 0086-18954079939
Skype: spareparts1960
API  OSHA  IADC  OPEC  RIG ZONE  WORLD OIL Drilling Formulas