In recent years, with the
development of the offshore resource development business, the application of
offshore installations keeps expanding from traditional offshore oil and gas
development and processing to emerging offshore construction, offshore wind
power, fish farming and tourism, and the number of offshore installations is
also increasing.
Due to the harsh marine
environmental conditions and difficult operations of offshore installations, it
is difficult to avoid some safety issues. If not handled properly, this will
bring huge economic losses and even threaten the safety of life at sea and the
marine environment.
The China Classification Society
(CCS) has established a finite element model of a platform structure based on
the special structure design mode and equipment form of the mobile platform,
providing its clients with services throughout the full life cycle of the
mobile platform, thereby protecting the mobile platform.
In order to provide more
efficient and convenient services, CCS has developed a full life cycle
management system (MSER) for offshore mobile platforms based on a structural
model database. This system provides services for well location operational
capability analysis, emergency response, and on-site survey of mobile platforms
to ensure the structural safety of offshore mobile platforms.
Based on the established finite
element model database, combined with the original design drawing data and
dynamic data input (such as transformation, thickness measurement, etc.) in the
life cycle, the finite element calculation and theoretical analyses are used to
give a structural safety evaluation conclusion, providing guidance for on-site survey
by inspection agencies and the daily maintenance of the platform. In addition,
there is technical support for the ship owner to make a rapid decision when the
platform changes environmental conditions in which it is operating and requires
the analysis of well location operation capability and when an accident occurs
and emergency response is required the following services are available:
Service functions
1) Evaluation of the structure’s technical
condition throughout its life cycle
Recognize the structural safety
analysis, tracking, monitoring and management throughout the life cycle of the
mobile platform from design, construction, survey and transformation to daily
operation.
2) Analysis of well location
operational capability
Able to analyze and judge the
well location operational capability of the mobile platform as to whether it can
adapt to the new environmental conditions and help the platform manager make
quick decisions.
3) Emergency response support
Able to quickly evaluate the
structural safety of the mobile platform in response to emergencies (such as
leg puncture, platform towing collision, etc.), and provide emergency response
measures, thereby playing an important role in reducing accident losses and
ensuring structural safety.
4) Provide strong technical
support for maintenance, service, repair, transformation and survey
Able to comprehensively reflect
the actual status of the platform structure, find the existing structural
safety hazards, and put forward reasonable suggestions and on-site key survey suggestions
to provide technical support for the repair, maintenance and service of the
platform and the on-site survey of the surveyor, in a timely fashion.
5) Security management of aging
mobile platform
Through continuous tracking and
periodic structural safety evaluation of the aging mobile platform, technical
support is provided for the regular maintenance and service of the aging
platform, to reduce its operational risk.
System features
Realize the perfect seamless
connection between condition data and finite element model, and establish a
continuous, dynamic and fast structural evaluation system throughout the life
cycle.
1) Fast response capability for
finite element calculation
The seamless connection between
the thickness measurement data and the finite element calculation model of the
platform is realized, so that the platform has the fast response capability to finite
element calculations, the conclusions and suggestions from the analysis of calculations
can then be quickly returned to the platform during the docking repair period
to guide repair or transformation construction.
2) Accurate and efficient
thickness measurement
A systematic platform for thickness
measurement is provided. Based on the last evaluation results and site
conditions, the thickness measurement range can be determined, and the diagrams
for thickness measurements are printed. A standardized thickness measurement
report will be automatically generated based on the entered thickness
measurement data, thereby realizing standardized, normalized and efficient
thickness measurements.
3) Full life cycle management of
structural safety of a mobile platform
Conduct centralized management of
the platform data such as the original platform design, previous
reconstruction/repair drawings and data, previous survey and testing data,
finite element models, previous calculation and analysis data etc. Based on
these complete technical data, the evaluation of structural and technical
status of the system, pre-evaluation before platform operations, emergency
response, evaluation and management of the aging platform, and other functions,
realize the structural management of the mobile platform throughout its life
cycle.
3. Achievements
The MSER system has been
successfully applied in the well location operational capability analysis and
emergency response analysis of more than one hundred mobile platforms, and the
structural safety assessment and analysis of aging platforms of China Oilfield
Services Limited (COSL), CNPC Offshore Engineering Company Limited (CPOE), and Shengli Oilfield Offshore Drilling Company, which has
produced huge economic and social benefits.
The MSER system has created a new
mode of structural safety management of offshore mobile platforms and will surely
promote the safe operation and scientific management of offshore mobile
platforms in China.
For more details, please contact
us:
Tel: 0086-22-62022888-1213，0086-10-58113424
E-mail: ot@ccs.org.cn
