Standard Subsea Connection Systems Oss Connectors Brochure
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Integrated offshore
offering for reliable,
high-quality, and capital-
efficient performance
Standard
Subsea
Connection
Systems
Standard Subsea
Connection Systems
Through standardized processes, common core
components, and qualified, field-proven assemblies,
OneSubsea can deliver standard subsea connection
systems anywhere globally within 6 months.
These highly configurable solutions are designed to bring
greater efficiency and reliability to subsea operations,
enabling project viability and helping you meet a range
offunctionality requirements while driving down capex.
Versatile and efficient OneSubsea clamp
systems (OCSs) ensure that there is a
connection solution for every application.
■Proprietary dual metal gasket (DMG)
■Compact design that reduces weight
and cost of structures
■Reduced jumper installation time
■ROV fly-to-place tooling that eliminates
the use of downline
■In situ insulation capability
■High load capacity
■Accommodation of rigid,
flexible, or multibore jumper
configurations
■Subsea seal replacement
and hub cleaning ability
■Backseat testing capability
■Wet parking capability
Advantages Flexible Functionality
Quality Control
The QC requirements for our connection systems
are in accordance with API Specifications 6A and
17D. Facilities are certified per API Q1, strategic
subcontractors are certified to ISO9001, and body
forgings are certified to DNV 3.2. This approach
facilitates preengineering of materials, which
enables preordering and, in certain cases, stocking
them to secure lead time and protect schedule.
Surveillance by customers is available during
factory-acceptance testing.
The standard connection system is built from a suite of preauthored quality control, material, welding,
and coating specifications that simplify and expedite our execution processes. OneSubsea works
with approved vendors to ensure that they can manufacture the required components, enabling high
confidence in quality and lead time.
Materials
All material specifications used conform to
API 6A and API 17D and were chosen on a
component-by-component basis. Pressure-
containing components additionally conform
to DNV GL recommended practices (RP)
for steel forgings for subsea applications
(DNVGL-RP-0034). A range of standardized
material options is available based on
component criticality, manufacturability,
andenvironmental compatibility.
Welding
Our welding procedure for subsea connection
systems conforms to API 6A, ASME IX, ASME
B31.3, ASME B31.8, and NACE MR0175 / ISO
15156. Adhering to proven, tested, and
repeatable processes enables OneSubsea to
■standardize welding specifications within and across
productlines and vendors
■provide a superior engineering design that meets
or exceeds industry specifications at a lower cost
■deliver increased value by enhancing the product
without incurring added costs.
There is one overall coating
procedure comprising two
preferred subsea coating
options—one for temperatures
up to 122degF [50degC] and
one high-temperature system for
up to 302degF [150 degC]. The
standard coating specification
gives the requirements for surface
preparation, selection of coating
materials, application procedures,
and inspection of protective
coatings to be applied on the
standard connection systems.
Coating
OCS-V (4–20 in)
Clamp system—vertical
Functional specifications
■ Simplified installation that requires no heavy running or guiding tools
■ Compact, high-load-capacity design
■ Simple makeup with no pipe deflection needed
■ Accommodation of rigid and flexible flowlines with gooseneck termination
■ 5,000- to 20,000-psi [345- to 1,379-bar] working pressure
■ Water depth rating of up to 15,000 ft [4,572 m]
■ Ability to change out subsea seal without having to retrieve jumper
■ Proprietary dual metal-to-metal (MTM) sealing technology
■ Backseat testing capability
OCS-V Connection System Specifications
Deployment System
and Tooling Size
Model Nominal Pipe Size (NPS), in
Small OCS-100 4 to 6
Midsize OCS-200
OCS-300 6 to 12 (multibore)
Large OCS-500
OCS-700 12 to 20 (multibore)
Functional specifications
■ Simplified installation that requires no heavy running or guiding tools
■ Compact, high-load-capacity design
■ Configurations for monobore, multibore, and umbilical termination
head variants
■ Accommodation of rigid and flexible flowlines
■ Ability to change out subsea seal, clean hub, and retrieve manifold
ortree without having to retrieve jumper
■ 5,000- to 20,000-psi [345- to 1,379-bar] working pressure
■ Water depth rating of up to 15,000 ft [4,572 m]
■ Proprietary dual MTM sealing technology
■ Backseat testing capability
OCS-H (4–30 in)
Clamp system—horizontal
OCS-H Connection System Specifications
Deployment System
and Tooling Size
Model NPS, in
Small OCS-100
OCS-200
OCS-300
4 to 12 (multibore)
Midsize OCS-500
OCS-700 12 to 20 (multibore)
Large OCS-1200 20 to 36 (multibore)
CVC (6–20 in)
Flowline connector—vertical
Functional specifications
■ Simple makeup that requires no pipe deflection
■ Accommodation of rigid and flexible flowlines
with gooseneck termination
■ 5,000- to 15,000-psi [345- to 1,034-bar] working pressure
■ Water depth rating of 10,000 ft [3,048 m]
■ ROV-operated tools
■ Primary MTM seal with an elastomeric backup (S-AX gasket)
■ Ability to change out subsea seal without having
to retrieve jumper
CVC Connector Specifications
Size, in Pressure, psi [bar]
610,000 [689]
15,000 [1,034]
810,000 [689]
15,000 [1,034]
10 5,000 [345]
10,000 [689]
15,000 [1,034]
12 6,500 [448]
10,000 [689]
16 10,000 [689]
20 5,000 [345]
Functional specifications
■ Simple, easy-to-install, ROV-friendly design
■ Secondary release mechanism
■ Ability to change out subsea seal and clean hub without
having to retrieve jumper
■ Up to 15,000-psi [1,034-bar] working pressure
■ Water depth rating of 10,000 ft [3,048 m]
■ Ability to be used in either horizontal or vertical orientation
■ Proprietary dual MTM sealing technology
■ Backseat testing capability
OSS SBC (2–3 in)
Small-bore connector
Connection Capping Equipment Dual Metal Gasket (DMG)
Short-Term Pressure Cap Specifications
Item Description
Seal Elastomeric
Size range, in Vertical 6 to 20
Horizontal 6 to 30
Max. operating pressure, psi [bar] 20,000 [1,379]
MTM Sealing Specifications
Item Description
Temperature, degF [degC] −50 to 350 [−46 to 177]
Sizes, in 2 to 30
Design pressure, psi [bar] Up to 20,000 [1,379]
Long-Term Pressure Cap Specifications
Item Description
Seal MTM
Size range, in Vertical 6 to 20
Horizontal 6 to 30
Max. operating pressure, psi [bar] 20,000 [1,379]
Temperature, degF [degC] −50 to 350
[−46 to 177]
API 6A material class EE, HH
■ Independently tested dual seal
■ Retained within outboard connector and can
be replaced and retrieved using specialized
subsea tooling
■ Elastic design capable of multiple uses
■ Suitability for HPHT applications
Reliable. Compact. Simple.
OneSubsea has a solid track record of deploying field-proven technology that
drives superior performance for our customers. Since 1998, more than 2,500
of our connectors have been installed in more than 80 projects worldwide for
connecting flowlines and export lines.
Expertise in engineering and
new technology development
True to OneSubsea quality, our connection
systems are designed to perform to your
satisfaction. You get strong, reliable connections
that are designed to be cost effective.
Excellence in QHSE
In tandem with our customers, contractors,
and suppliers, we are committed to a working
culture in which quality, health, safety, andthe
environment are our priorities.
*Mark of Schlumberger. CVC is a mark of Schlumberger.
Other company, product, and service names are the properties
of their respective owners.
Copyright © 2017 Schlumberger. All rights reserved. 17-OSS-243799
onesubsea.slb.com/standardization
Integrated offshore offering for reliable, high-quality,
and capital-efficient performance
Standard Subsea Connection Systems
