![[Table of Contents]](/dwicons/b_toc.gif)
The electronic pdf versions of the documents found through http://www.dnv.com/ are the officially binding versions. Copyright Det Norske Veritas.
|
|
DNV-OS-E101 Drilling plant |
![[-]](/dwicons/i_colpse.gif)
| Ch.1: Introduction |
|
| Sec.1: Introduction |
Ch.1
Ch.1 Sec.1 A
| Table A1 DNV Offshore Standards (DNV-OS) and other DNV references | |
| Reference | Title |
| DNV-OS-A101 | Safety Principles and Arrangement |
| DNV-OS-B101 | Metallic Materials |
| DNV-OS-C101 | Design of Offshore Steel Structures, General (LRFD method) |
| DNV-OS-C102 | Structural Design of Offshore Ships |
| DNV-OS-C103 | Structural Design of Column Stabilised Units (LRFD method) |
| DNV-OS-C104 | Structural Design of Self Elevating Units (LRFD method) |
| DNV-OS-C105 | Structural Design of TLPs (LRFD method) |
| DNV-OS-C106 | Structural Design of Deep Draught Floating Units |
| DNV-OS-C107 | Structural Design of Ship-shaped Drilling and Well-service Units |
| DNV-OS-C201 | Structural design of Offshore Units (WSD method) |
| DNV-OS-C401 | Fabrication and Testing of Offshore Structures |
| DNV-OS-D101 | Marine and Machinery Systems and Equipment |
| DNV-OS-D201 | Electrical Installations |
| DNV-OS-D202 | Automation, Safety and Telecommunication Systems |
| DNV-OS-D301 | Fire Protection |
| DNV-OS-E201 | Hydrocarbon Production Plant (Only applicable for well testing) |
| DNV-OS-F201 | Dynamic Risers |
| DNV-RP-A203 | Qualification Procedures for New Technology |
| DNV-RP-C205 | Environmental Conditions and Environmental Loads |
| Standard for Certification No. 2.22 | Lifting Appliances |
| DNV-RP-D101 | Structural Analysis of Piping Systems |
| DNV-RP-O501 | Erosive Wear in Piping Systems |
| Standard for Certification No 2.4 | Environmental Test Specification for Instrumentation and Automation Equipment |
| Standard for Certification No. 2.7.3 | Portable Offshore Units |
| Standard for Certification No 2.9 | Approval Programme No. 5-778.93 Approval of Hydraulic Cylinders |
| Classification Note 45.1 | Electromagnetic Compatibility |
| Rules for Lifts | Rules for Certification of Lifts in Ships, Mobile Offshore Units and Offshore Installations |
| — | provide an internationally acceptable standard of safety for drilling and well intervention facilities by defining minimum requirements for the design, materials, construction, testing and commissioning of such facilities |
| — | serve as a reference document in contractual matters between purchaser and contractor |
| — | serve as a guideline for designers, purchasers and contractors |
| — | specify procedures and requirements for drilling and well intervention facilities subject to DNV certification and classification. |
Guidance note: ---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
Both audible and visual part alone may serve both functions
during special operating conditions.
Guidance note: ---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
Basic software normally includes the operating system and
additional general software necessary to support the general application
software and project application software.
Computer based system serving an essential or important function: The function can be in operation without support from the computer system, i.e. the computer is not part of the function.
Computer based system as part of
an essential or important function: The function can
not be in operation without support from the computer system, i.e.
the computer is part of the function.
Ch.1 Sec.1 B
204 Computer task: A multiprocessing
environment, one or more sequences of instructions treated by a
control program as an element of work to be accomplished by a computer.
Ch.1 Sec.1 B
205 Contract or Contracting parties: Formal written
agreement or parties who need to adhere to the formal written agreement.
Ch.1 Sec.1 B
206 Data communication links: Point
to point links, instrument net and local area networks, normally
used for inter computer communication on board vessels.
A data communication link includes all software and hardware necessary to support the data communication.
Guidance note: ---e-n-d---o-f---G-u-i-d-a-n-c-e---n-o-t-e---
For local area networks, this includes network controllers,
network transducers, the cables and the network software on all nodes.
| — | deterioration of functionality to such an extent that safety is significantly affected |
| — | loss of component or system function. |
The field instrumentation includes:
| — | sensors, actuators, local control loops and related local processing as required to maintain local control and monitoring of the process segment |
| — | user interface for manual operation (when required). |
Other equipment items do not, whether they are implemented locally
or remotely, belong to the field of instrumentation. This applies
to data communication and facilities for data acquisition and pre-processing
of information utilised by remote systems.
Ch.1 Sec.1 B
217 General application software: Computer
software performing general tasks related to a process equipment
being controlled or monitored, rather than to the functioning of
the computer itself.
Ch.1 Sec.1 B
218 Hazardous area: Space
in which a flammable atmosphere may be expected at such frequency
that special precautions are required. Refer to reference codes
for a complete definition including zones, etc.
Ch.1 Sec.1 B
219 Independent systems: Implies
that there are no functional relationships between the systems and
they can not be subject to common mode failures.
Ch.1 Sec.1 B
220 Indications: The visual
presentation of process equipment values or system status to a user.
Ch.1 Sec.1 B
221 Installation or drilling installation: is a general
term for floating and fixed structures, including facilities, which
are intended for exploration, drilling, production, processing or storage
of hydrocarbons or other related activities or fluids. The term
includes installations intended for accommodation of personnel engaged
in these activities.
Ch.1 Sec.1 B
222 Instrument net: Data
communication within the field instrumentation connecting instruments
in a network.
Ch.1 Sec.1 B
223 Integrated system: A
combination of computer based systems which are interconnected in
order to allow common access to sensor information and/or
command or control.
Ch.1 Sec.1 B
224 Interlock system: A
set of devises or keys that ensure that operations (e.g. opening
and closing of valves) are carried out in the right sequence.
Ch.1 Sec.1 B
225 Important system: Generally
defined as a system supporting equipment which need not necessarily
be in continuous operation for maintaining the unit's manoeuvrability,
but which is necessary to maintain the unit's main functions.
The definition is extended for systems associated with the drilling plant
to cover systems, which ensures reliable operation and which maintains
plant operation within operational limitations.
Ch.1 Sec.1 B
226 Local area network: Data
communication between the field instrumentation and the other parts
of a system, and between different systems.
Ch.1 Sec.1 B
227 Maximum Allowable Working Pressure
(MAWP): The maximum operating pressure of a system used
for design.
Ch.1 Sec.1 B
228 Maximum unavailable time: The
maximum duration of time the function is allowed to be unavailable,
i.e. the maximum permissible time lag involved in restoring lost
function upon failure.
Ch.1 Sec.1 B
229 Minimum Design Temperature, MDT: Minimum
design operating or ambient start-up temperature. The lowest predictable
metal temperature occurring during normal operations including start-up
and shut-down situations shall be used. (If no thermal insulation
is fitted, then ambient temperature shall be used if this is lower
than the temperature of the content).
Ch.1 Sec.1 B
230 Multiplex, MUX, control system: A system utilizing electrical
or optical conductors in an armoured subsea umbilical cable such
that, on each conductor, multiple distinct functions are independently
operated by dedicated serialized coded commands.
Ch.1 Sec.1 B
231 Node: Process segment
or a part of the system connected as part of the data communication
link.
Ch.1 Sec.1 B
232 Non-important system: Defined
as a system, which is neither essential nor important.
Ch.1 Sec.1 B
233 Non-redundant structure: See 249.
Ch.1 Sec.1 B
234 Operating conditions: Conditions
wherein a unit is on location for purposes of drilling or other
similar operations and combined environmental and operational loading
are within the appropriate design limits established for such operations. The
unit may be either afloat or supported on the sea bed as applicable.
Ch.1 Sec.1 B
235 Point to point link: Data
communication between two dedicated nodes.
Ch.1 Sec.1 B
236 Pre-warning: Indication
of a process equipment or system state that needs attention.
Ch.1 Sec.1 B
237 Primary structure: Structural
elements that are essential to the overall integrity of the structure.
Ch.1 Sec.1 B
238 Process: The result
of the action done by the EUC, see 212.
Ch.1 Sec.1 B
239 Process segment: A
collection of mechanical equipment with its related field instrumentation,
e.g. a machinery or a piping system. Process segments belonging
to essential systems are referred to as essential.
Ch.1 Sec.1 B
240 Project application software: Computer
software performing tasks related to the actual process equipment
for a specific project.
Ch.1 Sec.1 B
241 Reference thickness: Material
thickness. For weld regions the reference thickness is defined as
the thickness of the plate determining the weld throat thickness.
Ch.1 Sec.1 B
242 Rupture (or bursting) disc: A
device designed to rupture or burst and relieve pressure at a defined
pressure and rate. The device will not close after being activated.
Ch.1 Sec.1 B
243 Safe Working Load (SWL): The
maximum allowable mass to be lifted.
Ch.1 Sec.1 B
244 Safety factor: The
relationship between maximum allowable stress level and a defined
material property, normally specified minimum yield strength.
Ch.1 Sec.1 B
245 Safety shutdown: A
safety action that will be initiated upon failure and shall result
in shutdown of the process equipment or part of the process equipment
in question.
Ch.1 Sec.1 B
246 Safety system: Electronic
or electrical or mechanical system installed to execute protective
measures based on a pre-defined logic to bring an undesirable event
under control based on manual or automatic execution or to monitor
critical parameters and initiate alarms.
Ch.1 Sec.1 B
247 Secondary structure: All
structures that are not defined as primary, special or non-redundant.
Ch.1 Sec.1 B
248 Software module: Assembly
of code and data with a defined set of input and output, intended
to accomplish a function and where verification of intended operation
is possible through documentation and tests.
Ch.1 Sec.1 B
249 Special area or Non-redundant structure: Areas of
primary structural elements with critical stress concentrations
or members which are non-redundant.
Ch.1 Sec.1 B
250 System: Includes all
components necessary for monitoring, control and safety, including
sensors and actuators. As used in this standard, system is a short
term used for instrumentation and automation system.
A system includes all resources required to support one specific function, including:
| — | the field instrumentation of one or more process segments |
| — | all necessary resources needed to maintain the function including system monitoring and adequate self-check, all user interfaces. |
Ch.1 Sec.1 B
| Table B1 Abbreviations | |
| Reference | Title |
| AISC | American Institute of Steel Construction |
| ANSI | American National Standards Institute |
| API | American Petroleum Institute |
| APV | Air Pressure Vessel |
| ASME | American Society of Mechanical Engineers |
| ASTM | American Society for Testing of Materials |
| BOP | Blow Out Preventer |
| BS | British Standard (issued by British Standard Institution) |
| CMC | Certification of Materials and Components |
| CSA | Canadian Standards Association |
| DIN | Deutsche Institut für Normung e.v |
| DNV | Det Norske Veritas |
| DP | Dynamic Position |
| DVR | Design Verification Report |
| EDP | Emergency Disconnect Package |
| EN | European de Normalisation |
| ESD | Emergency Shutdown |
| EUC | Equipment Under Control |
| EWT | Extended Well Testing |
| FEM | Fédération Européenne de la Manutention |
| F&G | Fire and Gas |
| HPHT | High Pressure High Temperature |
| HPU | Hydraulic Power Unit |
| HVAC | Heating, Ventilation and Air Conditioning |
| IEC | International Electrotechnical Commission |
| IMO | International Maritime Organisation |
| IP | Institute of Petroleum |
| IRN | Inspection Release Note |
| ISO | International Organisation for Standardisation |
| LMRP | Lower Marine Riser Package |
| LRP | Lower Riser Package |
| MODU | Mobile Offshore Drilling Unit |
| NACE | National Association of Corrosion Engineers |
| NDE | Normally De-energised |
| NDT | Non-destructive Testing |
| NE | Normally Energised |
| NFPA | National Fire Protection Association |
| NS | Norwegian Standard (issued by Norwegian Standards Association) |
| OS | Offshore Standard |
| OSS | Offshore Service Specification |
| PC | Product Certificate |
| PCV | Pressure Control Valve |
| PROM | Programmable Read Only Memory |
| PSV | Pressure Safety (or Relief) Valve |
| RP | Recommended Practice |
| SG | Specific Gravity |
| SWL | Safe Working Load |
| TEMA | Tubular Exchange Manufacturers Association |
| TLP | Tension Leg Platform |
| UID | User Input Device |
| UPS | Uninterruptible Power Supply |
| VDU | Visual Display Unit |
| VIS | Vessel Information Structures |
| WT | Well Testing |
|
|