Oilman Group
API 16A PRODUCTS
Well Control Equipment
Oilman Group Ltd
Shanghai | Houston | www.oilmangroup.com 1
Oilman Group
BOMCO Guanghan Drilling & Production Equipment Factory is a
subsidiary of CNPC and provides the best API 6A & 16A products
to esteemed customers all over the world.
Shanghai | Houston | www.oilmangroup.com 2
Oilman Group
BOP SPECIFICATIONS
7-1/16 9 11 13-5/8 16-3/4
DN (in)
18-3/4 20-3/4 21-1/4 26-3/4
Working Pressure(psi) 2,000 3,000 5,000 10,000 15,000
Flange API 6A
Design and Manufactureing Meet or exceed API 6A
Temperature Classications
Operating Range
Classifications
℃ 9 °F
T-75 -59 to 121 11 -75 to 250
T-20 -29 to 121 -20 to 250
13-5/8
T-0 -18 to 121 0 to 250
16-3/4
Drilling Pipe Sizes Suitable for Blind Ram
BOP Drilling Piping(min) Hydraulic Pressure
7-1/16” 3 1/2” 13.3lb/ft E-75
11” 5” 19.5lb/ft E-75 ≤3000psi
13-5/8” 5” 19.5lb/ft G-105
Shanghai | Houston | www.oilmangroup.com 3
Oilman Group
Standard Material Property
Material 0.2% Offset yield strength(min) Tensile Strength(min) Elongation in 50mm(2in) Reduction in area
Designator Mpa psi Mpa psi % (min) % (min)
36k 248 36,000 483 70,000 21 /
45k 310 45,000 483 70,000 19 32
60k 414 60,000 586 85,000 18 35
75k 517 75000 655 95,000 18 35
RAM BOP
Features:
Main pressurized parts made of casting or foring with excellent
comprehensive mechanical properties.
Large volume feedable rubber and enhanced seal deliver a long
and dependable service life.
Hydraulic contorl is used for closing and opening cylinder and intermediate flange.
Large piston area, easing operation at moderate operation
pressure.
Ram raplacement easily.
Pressure energized ram seal
Ram are interchangeble with Cameron related type.
Shanghai | Houston | www.oilmangroup.com 4
Oilman Group
Parameters of Ram BOP
Parameter Bore Size Pressure Rating Hydraulic Control Ram Size Side Outlet
(Mpa/psi) Pressure (inch) Flange
Module (inch)
(Mpa/psi) size(in)
7-1/16”-21 7-1/16 20.7/3,000 8.5-10.5/1230-1520 2-7/8 2-1/16
7-1/16”-35 7-1/16 34.5/5,000 8.5-10.5/1230-1520 2-7/8 2-1/16
7-1/16”-70 7-1/16 69/10,000 8.5-10.5/1230-1520 3-1/2 2-1/16
7-1/16”-105 7-1/16 103.5/15,000 8.5-10.5/1230-1520 3-1/2 2-1/16
9”-21 9 20.7/3,000 8.5-10.5/1230-1520 2-7/8 2-1/16
9”-35 9 34.5/5,000 8.5-10.5/1230-1520 2-7/8 2-1/16
9”-70 9 69/10,000 8.5-10.5/1230-1520 3-1/2 “Pipe 2-1/16
Ram
11”-21 11 20.7/3,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
11”-35 11 34.5/5,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
11”-70 11 69/10,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
11”-105 11 103.5/15,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
13-5/8”-21 13-5/8 20.7/3,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
13-5/8”-35 13-5/8 34.5/5,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
13-5/8”-70 13-5/8 69/10,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
13-5/8”-105 13-5/8 103.5/15,000 8.5-10.5/1230-1520 5” Pipe Ram 2-1/16
20-3/4”-21 20-3/4 20.7/3,000 8.5-10.5/1230-1520 5” Pipe Ram 4-1/16
21-1/4”-14 21-1/4 13.8/2,000 8.5-10.5/1230-1520 5” Pipe Ram 4-1/16
26-3/4”-14 26-3/4 13.8/2,000 8.5-10.5/1230-1520 5” Pipe Ram 4-1/16
Shanghai | Houston | www.oilmangroup.com 5
Oilman Group
ANNULAR BOP
Annular BOP fabricated by BOMCO features compact structure, reliable sealing and suitable all shape,
all size of kelly drilling pipe, drilling pipe, casing and cables.
Parameters of Annular BOP
Parameter Bore Size Pressure Rating Hydraulic Control Control Line
(Mpa/psi) Pressure Connection
Module (inch)
(Mpa/psi) (in)
7-1/16”-21 7-1/16 20.7/3,000 8.5-10.5/1230-1520 NPT 1”
7-1/16”-35 7-1/16 34.5/5,000 8.5-10.5/1230-1520 NPT 1”
7-1/16”-70 7-1/16 69/10,000 8.5-10.5/1230-1520 NPT 1”
9”-21 9 20.7/3,000 8.5-10.5/1230-1520 NPT 1”
9”-35 9 34.5/5,000 8.5-10.5/1230-1520 NPT 1”
9”-70 9 69/10,000 8.5-10.5/1230-1520 NPT 1”
11”-21 11 20.7/3,000 8.5-10.5/1230-1520 NPT 1”
11”-35 11 34.5/5,000 8.5-10.5/1230-1520 NPT 1”
11”-70 11 69/10,000 8.5-10.5/1230-1520 NPT 1”
13-5/8”-21 13-5/8 20.7/3,000 8.5-10.5/1230-1520 NPT 1”
13-5/8”-35 13-5/8 34.5/5,000 8.5-10.5/1230-1520 NPT 1”
13-5/8”-70 13-5/8 69/10,000 8.5-10.5/1230-1520 NPT 1”
13-5/8”-105 13-5/8 103.5/15,000 8.5-10.5/1230-1520 NPT 1”
20-3/4”-21 20-3/4 20.7/3,000 8.5-10.5/1230-1520 NPT 1”
21-1/4”-14 21-1/4 13.8/2,000 8.5-10.5/1230-1520 NPT 1”
Shanghai | Houston | www.oilmangroup.com 6
Oilman Group
Integral Blowout Preventer Stack
The integral BOP stack integrates Ram Blowout Preventer,
Annular Blowout Preventer and Drilling Spool. It is a safe,
fast and efficient latest model Blowout Preventer Stack,
which is mainly applied to mechanical Drilling Rig and
Work over rig with limited installation space.
Features:
Improve well control safety: The Integral
Blowout Preventer Stack is forged as a whole
piece without combined connection and reduce
leakage points.
Promote drilling speed：The Integral Blowout Preventer Stack only install once, save
installation time by simplifing operation procedure.
Reduce drilling costs: BOP stack installation and operation as one piece, easily move, which
greatly saves operating time and labor intensity.
`
Main performance Data：
Working Mpa 14 21 35
Pressure psi 2000 3000 5000
Main mm φ179.4 φ279.4 φ346.1
Diameter inch 7-1/16 11 13-5/8
Material Code 75K
Temperature Class T-20
Shanghai | Houston | www.oilmangroup.com 7
Oilman Group
VARIABLE BORE RAM
Variable bore ram can be used to seal on a range of pipe from 3-1/2” to 5-1/2” , and can replace rams:
3-1/2” , 4”, 4-1/2”, 5” and 5-1/2”
Drilling Spool
Oilman Group supplies drilling spool designed and manufactured according to API 16A product
specification. Products are designed to allow smooth circulation of mud during the drilling environment.
Drilling spools are used for BOP hookup and usually have the same nominal top and bottom end
connections. Side outlet may differ from each other. Top, bottom and side end connections can be hub
end or flanged.
SPECIFICATIONS
Working pressure: 2,000psi – 20,000psi
Working medium: Oil, Natural Gas, Mud
Working temperature: -29 -121℃ (82°F -250°F)
Material class: CC, DD, EE, FF
Specification class: PSL1,PSL2, PSL3,PSL4
Performance class: PR1, PR2
Shanghai | Houston | www.oilmangroup.com 8
