All News

Clarus Achieves ISO 9001:2015 Quality Management Certification

Clarus Subsea Integrity, an Acteon Company, is proud to have achieved the ISO 9001:2015 quality management certification.

The ISO 9001:2015 is an internationally recognized quality management standard. The purpose of the standard is to achieve excellence in customer service and delivery. Clarus has implemented a quality process since the launch of the company in January 2015. The foundation of customer focus and continual improvement is part of its company culture.

The quality management system is applicable to the provision of subsea integrity engineering services, design of integrity management systems, consultancy, fitness for service evaluation, and integrity management to the oil and gas industry.

Clarus VP Dharmik Vadel comments, “This achievement is a demonstration of Clarus’ commitment to delivering technically innovative solutions and exceeding client expectations for all our clients globally.” 


Categories: all news,

Clarus Subsea Integrity Introduces the iCUE Digital Anomaly Detection App

New Technology Improves Asset Inspection Efficiency & Reduces Costs  

Clarus Subsea Integrity, an Acteon company that provides subsea integrity engineering services, today announced the introduction of the iCUE Digital Anomaly Detection App, pioneering new technology that provides rapid, accurate detection of anomalies by reviewing inspection video footage of subsea assets.  It is the latest addition to the company’s Digital Integrity Management Services portfolio.

Expertise in subsea integrity sets iCUE App apart

Drawing upon 14 years of experience in subsea integrity management services and its vast knowledge of subsea anomaly detection, monitoring and remediation, Clarus is uniquely positioned to provide this game-changing technology. Although there are apps on the market that purport to detect anomalies, the iCUE App is different. 

“What sets it apart is that the development was led by integrity engineers experienced in offshore inspections with in-depth knowledge of the actual assets and equipment that the app is trained to examine,” said Dharmik Vadel, Vice President of Clarus Subsea Integrity.  “Not only does the Clarus iCUE design team know how these systems operate and what they were designed to do, they have the domain expertise in equipment degradation mechanisms and defect trending, they know which defects pose the greatest risks.  Armed with this knowledge, the iCUE app draws upon a solid foundation of detection data that the others don’t.  It is truly in a class of its own.”

Anomalies detected at least 10 times faster than manual review

By using the App to assess footage of subsea risers, pipelines or moorings, for example, operators immediately receive a more accurate account of conditions that might otherwise go undetected.  In addition, the speed at which it analyzes footage and identifies anomalies is at least 10 times faster than manual review, which is significant when assessing whether an asset is fit for continued service or requires attention.

To achieve this, the App automatically carries out an engineering assessment of the inspection footage. The App is based on machine learning, and draws upon image analysis technologies. Clarus trained it with a machine-learning algorithm to accurately qualify an anomaly by using a structured data set of positive examples of anomalies.

Reducing unknowns improves asset risk profile

The capabilities of this technology are striking, offering meaningful longterm benefits.  Using the App to screen footage to identify and characterize anomalies reduces the number of unknowns. As a result, the risk profile of the asset is improved by making it possible to positively confirm its integrity or develop a plan to mitigate identified anomalies.

Integrity managers can also use it to trend anomalies from multiple inspections conducted on an individual asset field life.  This is useful when considering a possible extension for an asset that is approaching the end of its original design life. Armed with more accurate detection reports, they are fully apprised as to the extent, nature and severity of anomalies to determine whether they must be addressed immediately, require ongoing monitoring or remediation before qualifying the asset for life extension.

Lowering inspection costs, improving inspection quality

Conducting efficient, cost-effective inspections depends upon how swiftly they’re executed.  Because the App is designed to conduct anomaly detection screening following inspection data gathering, it’s a completely separate operation.  This means that inspections, whether conducted by remotely-operated vehicles or autonomous unmanned vehicles (ROVs and AUVs), focus solely upon capturing accurate video data of subsea equipment.  As a result, this phase is completed faster, reducing time and expense.  Given that inspection video is screened automatically, the App essentially lowers the time and expense typically required. 

“Cutting the cost of detecting anomalies in subsea assets is a vital element of Acteon’s strategy to reduce overall ownership costs by 30%,” said Paul Alcock, Executive Vice President of Acteon, parent company of Clarus Subsea Integrity.  “The introduction of the Clarus anomaly detection App is one of many planned key steps forward in helping our clients realize significant benefits, financially and operationally.”      

While operators have historically inspected subsea assets, engineering assessment of inspection videos is the exception, not the rule.  “This enhanced capability bodes well for integrity purposes,” said Vadel.  “The more useful tools we provide managers to help formulate an accurate understanding of asset conditions, the more effective their integrity programs and ability to maintain production.  The iCUE App is one of those tools that will play a critical role in making that a reality.”

Looking ahead

Acteon is firmly committed to developing a full-scale production level Anomaly Detection App.  This App will be capable of detecting anomalies in real time as video inspection data is gathered subsea. To this end, Clarus has already produced one Proof of Concept App for a common subsea anomaly type, and plans to finalize a second by Summer 2018.

Demonstrations available

Clarus is demonstrating the iCUE App, which automatically detects missing riser strakes and fairings while reviewing riser inspection footage.   

To book a demonstration or learn more, readers should contact Dharmik Vadel, Vice President of Clarus Subsea Integrity at +1 832 664 7622 or dharmik.vadel@clarusintegrity.com.


Categories: all news, industry articles,

Clarus @ OTC 2018

Clarus' Yohanna Ruocco will be presenting at the Offshore Technology Conference in Houston this year. The conference takes place from 30th April - 3rd May at NRG Park in Houston. 

Risk-Based Internal Corrosion Assessment of Pipe in Pipe Flowline - Monday, 30th April - 9.30am

Authors: Y. Ruocco, D. VADEL, Clarus Subsea Integrity Inc; P.T. Hogelin, J.T. Webb, Noble Energy Inc; R. Hill, Microalloying International Inc.

 

Abstract

Safety and protection of the environment are paramount to successful, effective operations. A prominent challenge in the offshore oil and gas industry is striking a balance between maximizing production from a field and managing risks to meet or exceed regulatory compliance and safety goals. Noble Energy currently manages the integrity of its Gulf of Mexico deepwater assets through implementation of a risk-based integrity management (IM) program.  The objective of this paper is to demonstrate the value of a risk-based assessment process to mitigate internal corrosion of a pipe-in-pipe (PIP) flowline by progressively advancing detailed engineering assessments from routine monitoring activities. The results improved understanding of the risk and allowed for an update to the IM plan for remaining service life.

As part of Noble Energy’s subsea IM program, annual asset risk assessments are conducted to identify, assess and control operational risks. Key Performance Indicators (KPIs) have been implemented to manage degradation mechanisms during design review and flag potentially unfavorable operational conditions. The exceedance of a KPI limit and the reliability of monitoring data directly affect the predictability of the associated degradation mechanisms. Elevated corrosion rates from a conservative corrosion model, combined with discrepancies in topsides corrosion coupon sampling, resulted in lower confidence for threat predictability. This prompted a more detailed assessment to confirm integrity of the flowline. The assessment included a review of design and historical monitoring data. A complete produced water analysis was executed to update the corrosion model. A flow regime analysis was conducted to assess the pipeline water-wet condition and water hold-up potential for current operational conditions.

This paper presents challenges and assumptions utilized in identifying representative load cases from a 10-year operational history. The result of the assessment was the identification of areas along the flowline with medium to high water-wetting risk and understanding of the hazards associated with internal corrosion at the identified locations. This study provided significant improvement in visibility of internal corrosion risk of the flowline. Path forward included considerations of performing an evaluation for scale formation and its tendency to act as a natural inhibitor against corrosion, refining the corrosion model, measuring wall thickness of the flowlines at areas of highest corrosion risks, and injecting corrosion inhibitor.

This paper presents a holistic approach to managing internal corrosion risks for subsea flowlines. It demonstrates the value of linking data to degradation mechanisms to improve understanding of risks on the assets and the value of a structured program to ensure an Operator makes informed and confident decisions.  


Categories: all news, events,

Diving Deeper into Subsea Data Management

Clarus Subsea Integrity has designed a visually intuitive web portal that can overlay on existing systems or databases. This web portal is aimed to increase the efficiency and effectiveness of integrity management programs and reinvigorate document management.

Over an asset’s lifecycle, project stages change, personnel and contractors change, but data shouldn’t. Yet, valuable time and resources are often spent searching through vast amounts of information due to the complexity in designing, fabricating, installing, and operating a subsea development. This can lead to multiple data sources that can compromise overall quality and control.

Clarus has spent over a decade performing subsea integrity management plans, risk assessments, and engineering analysis. During this time, Clarus has seen many of the above problems cost operators hours of inefficiency and, in some cases, unnecessary action, while further driving up monetary costs in other cases due to delayed reaction time.

In order to combat these challenges, Clarus combined its strong integrity engineering experience with an effective graphical user interface to create ICUE. A web based portal that provides one access point for all of an operator’s subsea integrity management needs. What sets iCUE apart is the fact that it is designed specifically for integrity management by engineers who have completed over 2,000 subsea component risk assessments, 500 anomaly assessments, and a 100 subsea inspection campaigns.

 

iCUE brings key information about an operator’s particular asset to the foreground in a visual and user-friendly format. It allows quick and intuitive paths to data on a graphical user interface that can interface with any existing electronic document system. These paths enable users to obtain all of the integrity management data, on any of their components, within 5 clicks. Operators can obtain meaningful component status overviews and dig deeper into matters such as risk position, visual assessments, KPIs, inspection history, and as-built data.

Laying out data in such a way can demonstrate compliance through auditable performance history and improve operational readiness through visibility of component condition across one or multiple assets. In addition, operator’s integrity data management costs can be reduced by up to 15% with effective data mining.


Categories: all news, integrity insight blog,

Flexible Riser Integrity Assessment Approach

A lot has happened with flexible risers lately! Clarus has been asked by several clients to support assessment and evaluation of flexible riser integrity, including the independent review of annulus testing results and processing of riser monitoring data.

Click on the image to see our general approach to Flexible Riser Integrity. Clarus delivers forward-looking plans to verify the fitness for purpose and potential for life extension for flexible risers.

For more information please contact us at (832) 664-7620


Categories: all news, integrity insight blog,

Clarus @ NACE Corrosion Risk Management Conference

Clarus' Vinayak Patil will be presenting at the NACE Corrosion Risk Management Conference in Houston next week. The conference takes place from 23rd - 25th May at the Houston Marriott Westchase. 

Risk Assessment Tool for Corrosion Management – A Boon or Burden? - Vinayak Patil & Dharmik Vadel

Wednesday, 25th May 2016 - 11.35am

Abstract

A risk assessment is a common tool employed by Operators during different stages of an asset’s life cycle, and can be used to varying degrees of depth and detail. With newer oil and gas fields being developed in deeper water and harsher operating conditions corrosion management has become a growing challenge. In case of brown fields, extending life of existing fields by addition of new wells poses its own unique challenge for demonstrating fitness for purpose. A well implemented risk assessment should allow identification, review of operational conditions, and mitigation of credible corrosion degradation mechanisms to prevent any catastrophic failures. However, there are challenges in the application of risk assessments and translation of results into a robust plan for active management and continual improvement of ongoing corrosion management based on results of inspection and monitoring activities.

This paper discusses lessons from a decade of risk assessment application in effective corrosion risk management for offshore oil and gas fields.  Case studies will be presented to demonstrate effective use of risk assessment to support the ability to manage human involvement factor, risk management strategy updates to support changes in operational parameters, and chemicals management with respect to incompatibility of chemicals and role of monitoring. Finally, a few recommendations will be offered with an aim to evaluate and improve existing corrosion risk management practices through effective us of risk assessment as a tool for Operators. 


Categories: all news, events,

Do You Have Confidence in Your Data Management?

Finding the information you need about your offshore asset can be complicated. It is often stored in different places and managed by different people, making asset management challenging and time-consuming.

We highlight some of the challenges that we have seen time and again in this infographic, and provide a simple approach on steps you can take to get your data under control, making it accessible, accurate, meaningful and useful. 

Click image to zoom in.


Categories: all news, integrity insight blog,

Clarus Achieves ISO 9001:2008 Quality Management Certification

Clarus Subsea Integrity, an Acteon company, is proud to have achieved the ISO 9001:2008 quality management certification. 

The award marks the completion of verifications by an independent certification body and shows that Clarus’ working processes conform to the customer focused approach of ISO 9001. The quality management system is applicable to the provision of subsea integrity engineering services, design of integrity management systems, consultancy, fitness for service evaluation and integrity management to the subsea oil and gas industry.

Developed by the International Organization for Standardization, ISO 9001 is the world’s most widely recognized standard in the ISO 9000 family of standards. It helps companies develop and maintain quality management systems that ensure customer requirements are consistently met through the delivery of quality products and services, and that quality is continually improved.

Clarus VP Dharmik Vadel comments, “This achievement is testament to our core values around delivering quality work that is second to none. We really do have a culture of excellence, and exceeding client expectations is a key goal for all of our team members.”


Categories: all news,

Clarus Hosts Life Extension Seminar

Clarus hosted the latest Acteon Group knowledge sharing seminar on Thursday 12th November in Houston. The event focused on offshore asset life extension and featured some great presentations from sister companies Intermoor, Pulse and Seatronics. Clarus VP John MacDonald also presented. 

The four Acteon group operating companies have successfully enabled life extension for a diverse range of offshore assets around the world. Their technical experts shared their thoughts on the challenges and emerging trends in the fields of life extension and integrity management, and an operator shared lessons learned from one of their offshore projects. 

The technical and networking event attracted participants from a range of Gulf of Mexico operators, and highlighted multiple examples of unique, cost effective and successful approaches to life extension. 

If you are interested in seeing any of these presentations, or to register for future technical events, please get in touch

 

Condition Assessment in Life Extension
Presented by John MacDonald, VP, Clarus Subsea Integrity
An overview on the existing and emerging technology in today's market available for condition assessment. Maturity and applicability of different methods will be reviewed along with suggestions for ways technology and engineering assessment can be used to increase confidence in life extension.

BP Wet Spool Monitoring System
Presented by JD Lan, Pipeline Integrity Engineer, BP 
A BP case study of a structural monitoring system to measure fatigue damage of a Wet Spool riser system. The monitoring data is used to assess and verify the integrity of the wet spool system for the life of field.

Autonomous Ship Hull Inspection with the Hybrid Predator/HAUV
Presented by Alistair Coutts, Senior VP, USA Region, Seatronics
An overview of how Bluefin and Seatronics are partnering to integrate the HAUV's autonomous ship hull inspection capability into the Predator ROV to create a powerful new tool for UnderWater Inspection in-Lieu of Drydocking.

Zafiro Mooring Replacement for Life Extension 
Presented by Jim Macklin, VP Engineering & Projects, InterMoor
An case study on how careful recovery, replacement, testing and inspection have allowed for recertification of the 20-year mooring system of an FPSO, without any interruption of its operations.
 


Categories: all news, events,

Things to consider if your pipelines are spanning

Things to consider if your pipelines are spanning!

Here are a few things your should take into account if you find that your pipelines are spanning:

Pipelines and flowlines are typically designed to handle spans up to specified lengths. Checking your original design documents may show your spans are within design tolerances. No further action is required!

Driving factors for spanning integrity concerns are inspection data reliability, bottom current speeds or ultimate limit state stress. Be sure the right data is gathered and evaluated before declaring a span an integrity threat.

If pipeline spans are outside of the limits, an engineering assessment can be conducted to confirm whether the spans are integrity issues (DNV-RP-F105 and DNV-OS-F101)


Categories: all news, integrity insight blog,

Subsea Integrity Conference 2015

Clarus was bronze sponsor for this year's Subsea Integrity Conference in Houston. VP Dharmik Vadel presented in the Brownfield IM session. View his presentation entitled A Logical Path to Life Extension in our technical paper section here: http://www.clarusintegrity.com/#papers


Categories: all news, events,

Global FPSO Forum 2015

Clarus VP, Dharmik Vadel, presented at the Global FPSO Forum in Galveston this week. His presentation 'A Logical Path to Life Extension' can be viewed here:

http://www.clarusintegrity.com/cms/images/uploads/experience/2015-A-Logical-Path-to-Life-Extension.pdf


Categories: all news, events,

Rising to the Challenge - Read the Clarus article in Oilfield Technology

John MacDonald, Clarus Subsea Integrity, Ricky Thethi, 2H Offshore, and Jonathan Deegan, Riskbytes, provide an economic and risk assessment of single and dual casing top tensioned risers.

The use of single or dual casing top tensioned risers (TTRs) is a key decision in the design of a dry tree system. The decision is risk based between the decreased cost of a single casing top tensioned riser and the additional barrier provided by dual casing risers. However, without any recorded incidents attributed to either riser system and very few incidents with TTRs in general, there is a general lack of industry data for direct use in a risk analysis. This paper presents a quantitative risk assessment methodology using historical data from blowouts combined with a typical planned riser configuration and assumed time on well. When combined with the cost between single and dual cased systems, the approach can be used to develop a basis of decision between the two riser configurations.

Read full article.


Categories: all news, industry articles,

Life Extension or Decommissioning? Read the latest Clarus article in Offshore Engineer.

Understanding your asset is vital before making the big decision. Clarus Subsea’s Vinayak Patil and John MacDonald explain the key challenges of subsea integrity management in the Gulf of Mexico.

Operators in the Gulf of Mexico (GoM) must remain as proactive in the approach to subsea integrity as they have been in pioneering deepwater. Many of the early deepwater facilities are nearing the end of their design life, bringing to light the decision of what is next. However, making confident decisions in terms of life extension or decommissioning requires a thorough understanding of the asset history. For example, events such as high eddy current speeds are often not the priority during operations but may become a driver of life extension. Also while pushing designs for deepwater requires bespoke systems and flexible regulations, there are few prescriptive requirements to guide best practice. These leave operators and subsea integrity management (IM) contractors to determine the best practices for their asset IM.

Read the full article here: http://www.oedigital.com/subsea/item/10179-life-extension-or-decommissioning


Categories: all news, industry articles,

Are your strakes foul? 9 commonly asked questions.

Having spent the past 11 years or so working on integrity management projects as part of riser engineering experts 2H Offshore, we have encountered a lot of strakes and have seen it all. Here are the most common queries that we have received from clients over the years, along with some guidance on what to keep in mind.

1. The risers were designed for VIV, so why should I worry?

- ​​Most riser designs assume perfectly clean strakes with little to no marine growth.

- Marine growth has the potential to reduce the effectiveness of VIV strake suppression efficiency in high current regions.

- In recent months loop currents in excess of 4 knots have been observed in the GoM – on the order of a 100+ yr event. Can you remember what your design current speed was?

2. What about anti-foul strakes?

Unfortunately, the design premise that ‘anti-foul strakes will be used to mitigate VIV’ just does not hold up. In similar marine environments, ships have to regularly maintain and renew their anti-foul coating and, in our experience, significant marine growth even with anti-foul strakes does occur – albeit at a slower rate than strakes without anti-fouling.

3. Is marine growth a problem?

Maybe not. Some risers are less susceptible to VIV anyway and strakes were only added as additional insurance. The engineering design, specifically the predicted fatigue life, can be used as an indicator of whether VIV will be an issue when strakes lose efficiency due to marine growth.

4. Does the marine growth roughness help reduce VIV (like golf ball dimples)?

No, quite the opposite. Hard marine growth reduces a strakes ability to stop VIV as the depth of marine growth approaches the height of the strake fin. According to a study done by MARINTEK [OMAE2008-57587], strake efficiency reduced inversely to increased marine growth. The simulated hard marine growth took more height (>60%) compared to soft marine growth (>35%) to reduce the efficiency, but both have their limits.

Riser strakes

5. How much is too much marine growth?

If the actual growth is more than predicted in the original design calculations, then your design predictions are no longer valid and you should consider cleaning. Marine growth over 1/3 of the fin height is a good rule of thumb for deciding when to clean. When the fins can no longer be distinguished from the growth, they are past due for cleaning.

6. But isn’t VIV analysis conservative?

Maybe. Riser specialists 2H Offshore [OMAE2008-57046] and others have written papers on the topic which indicate that analysis predictions are conservative. However, VIV is not a linear phenomenon and system specific responses are based on the structural natural frequency and damping in a particular current profile.

7. What can I do?

First off, gather information regarding the extent of marine growth coverage during the next inspection, specifically the height of the growth compared to the height of the fin. Secondly, confirm if the design evaluated the effect of marine growth on VIV fatigue performance, or commission a short engineering study to do so. Finally, review the current data that is collected at the facility via the ADCPs. Evaluating current speed against the design predictions will at least give an indication of over or under conservative design. If after doing all the above, you’re still worried or the analysis suggests there will be a problem, then a strake cleaning program can be implemented, or a monitoring system can be retrofitted to determine if VIV is occurring.

8. How do I clean the strakes?

Cavitation blasters seem to do less damage to the strakes (or strake bands) than water jets but both have been used effectively. Try and plan the cleaning with your UWILD inspections as the tools will already be onsite.

9. But the risers have fairings; is this still an issue?

Fairings also suffer from degradation of VIV suppression due to marine growth [OTC 19373]. But fairings seem to perform better overall than strakes until the marine growth restricts the ‘weather vaning’ of the fairing. Fairings that are stuck perpendicular to the current flow increase the apparent diameter and may lead to galloping. Make sure the fairings are not only clean, but also free rotating during inspections.

In summary, keep an eye out for marine growth on your strakes, maintain and clean when necessary, and this should help secure the long-term integrity of your system.

 

John-MacDonaldJohn MacDonald is vice president at Clarus Subsea Integrity. He holds a BS in ocean engineering from Texas A&M University and is both a Chartered Engineer and a certified project management professional. He has accumulated 14 years of engineering experience in riser analysis, naval architecture, verification, acceptance testing and integrity management.


Categories: all news, integrity insight blog,

Internal Corrosion Management Tips

When was the last time you updated your Corrosion Management Strategy Document?

Ideally, it should cover the following elements: data collection, data validation, retrieved components, scope, relevance and quality.

Take a look at our infographic below for some more guidance.

For advice on your existing corrosion management strategy, or for help preparing a new one contact us!


Categories: all news, integrity insight blog,

Are you planning for subsea control system failure?

subsea control system failure infographic

A majority of time, effort, and money in asset management is spent on subsea control systems. Failures with SCMs are typically handled reactively, causing long downtimes or quick, expensive solutions.

We asked ourselves: "Can we take existing SCM data and variables and predict, with a certain level of accuracy, when a failure will happen?" Our goal was to give operations teams the ability to forecast failures, and plan properly and efficiently for them. 

As a result, Clarus has developed a robust set of subsea KPIs which help do just that. Our algorithms are configured to predict issues with DCVs, hydraulic fluid leakage and communication before they become downtime.

To learn about how our KPIs can help you take preventative steps with your subsea control system, contact us!


Categories: all news, integrity insight blog,

Splashzone Corrosion - Do you have the complete picture?

Here is what to look out for to get a clearer picture of what’s going on in your splashzone:

  • Corrosion and damage around entire pipe (on close up visual inspection).
  • Water build up at transition of splashzone and standard pipe coating layers.
  • Blisters over time, which can form excessive wear and damage in localized areas.
  • Disbondment of the splashzone coating layer.

 

Click image to expand.


Categories: all news, integrity insight blog,

Read the latest Clarus article in Offshore Magazine - Improved Risk Assessment Enhances IM

Clarus' Claire Zhao and Dharmik Vadel share their tips on how to maximize value from your IM risk assessment in this month's Offshore magazine.

A risk assessment is a tool commonly employed by operators during the stages of an asset’s life cycle, and can be used to varying degrees of depth and detail. Whether it is qualitative, quantitative, safety case or anomaly based, most operators use risk assessment techniques to identify critical components and prioritize inspection, maintenance and repair (IMR) work. 

To maximize the value of risk assessments there are a number of practical improvements that can help overcome challenges frequently faced during the application of risk assessment techniques. These allow the risk assessment process to be a multi-purpose tool to improve the overall performance of the integrity program.

Read the full article here: http://digital.offshore-mag.com/offshoremag/201506?sub_id=Bi6NUd7tNssZX#pg62


Categories: all news, industry articles,

Integrity Checklist for Hurricane Season

Hurricane season officially starts today! NOAA has predicted 3-6 hurricanes during the 2015 Atlantic hurricane season. Use our integrity checklist to make sure you’re prepared!

  • Prepare your post-hurricane inspection workscope
  • Be aware of existing anomalies and issues
  • Confirm that your back up monitoring system works
  • Communicate your response plan

Click image to enlarge.

For help preparing your hurricane plan, get in touch!


Categories: all news, integrity insight blog,

Clarus @ OMAE 2015

Clarus will present a paper at OMAE 2015 with sister company Intermoor on the Global Benefits and Operational Challenges of Vessel Relocation. OMAE 2015 is ASME's 34th International Conference on Ocean, Offshore and Arctic Engineering and will take place in St John's, Newfoundland, Canada from May 31 until June 5, 2015.

Abstract

Movement of moored floating production vessels, such as Spars, Semi-submersibles, Deep Draft Floaters and Floating Production Units, due to environmental loading is often considered a design challenge that needs to be addressed during the design phase of a structure.  Proactive vessel relocation through mooring line adjustment can be integrated as part of an operational method to improve and extend component lives. This method may be implemented during the initially planned life of the structure to overcome riser fatigue life challenges, or as one of the methods to extend service life. The benefits are particularly noteworthy for steel catenary risers and mooring systems and have been discussed in previous works.  However, vessels often deviate from the original relocation plan in practice.  This paper assesses the benefits of a vessel relocation program with conscientious focus on the associated operational challenges.  Risks associated with vessel relocation are also investigated.  Suggestions are made to optimize such a program and to minimize interruption to production.

Open full technical paper.


Categories: all news, events,

Read the latest Clarus article in Offshore Engineer - Enhanced IM of Subsea Control Systems

Claire Zhao and Dharmik Vadel discuss condition monitoring as a proactive approach to minimizing downtime in this month's Offshore Engineer.

Control system failure is one of the top contributors toward unplanned shutdowns in offshore subsea production systems. Current practice includes a reactive approach to failure management including equipment replacement or a retrofit solution, which can be costly. Condition monitoring of control equipment using existing operational data can provide leading indicators of equipment degradation and potential failure. This approach enhances visibility of equipment health, estimates time to failure and increases production uptime via planned equipment replacement. Three key performance indicators are discussed below including hydraulic pump performance, subsea control valve utilization and digital communications efficiency to demonstrate the benefits of condition monitoring.

Read the full article here: http://www.oedigital.com/production/item/8923-enhanced-im-of-subsea-control-systems 


Categories: all news, industry articles,

Submit your enquiry below and we will get back to you as soon as possible.
Clarus Subsea Integrity, Inc.
15990 North Barkers Landing, Suite 200
Houston, TX 77079

Map: Google map
T: +1 832 664 7620
E:
info@clarusintegrity.com

LinkedIn