THE KNOWLEDGE LIBRARY: WEBINAR REPOSITORY

A series of webinars to share our thoughts on some of the emerging issues within the advanced engineering analysis community. They are aimed at Engineers who are severely time constrained and Managers who need to deliver more work in less time with a finite amount of resource.

We aim to translate what is often complex theory into practical advice that you can apply to your day to day work. If you have any thoughts about a future webinar topic, or you would like a copy of the presentation slides, please contact us: solutions@pdl-group.com


VALVES – HOW TO TEST THE “UNTESTABLE”

Speaker: Elizabeth Waterman, Senior Engineer, CEng MIMechE

Host: Michael Williams, Managing Director, CEng FIMechE

Valves form an integral part of all pressure control systems across a huge range of industries. These critical components are often exposed to onerous operating and flow conditions which, in a lot of cases, are either incredibly difficult or simply impossible to recreate by physical testing prior to the valve going into service.

This webinar will look at the analysis techniques and methods that can be used to prove the structural integrity and functional performance of a valve before it is put into the field. Most of the examples that we will show will be from the oil & gas industry, but the same analysis techniques and methods can be used across all industries.

This technical webinar will give you some invaluable insight into how to apply some of the relevant design codes, e.g., ASME VIII, DNVGL-RP-F112 (HISC) & API 17TR8 (HPHT) to a valve in practise, followed by a review of the analysis techniques that you can use to determine the functional performance of the valve in service, e.g., operability and sealing. You will get:

1. An insight into the key things that you should consider when assessing a valve.
2. An overview of the analysis techniques and methods that you can use to verify the structural capacity of a valve.
3. An understanding of how to assess the functional performance of a valve in service.

We aim for the body of the presentation to take around 30 – 40 minutes. Submitted questions will be answered at the end of the presentation. All those who register (whether they attend the live event or not) will receive the webinar recording and a copy of the presentation slides.


THREADED CONNECTOR CAPACITY ASSESSMENT TO API 17G/ISO 13628-7 


Speaker: Alex Roff, CEng FIMechE, Engineering Director

Hosted by: Michael Williams CEng FIMechE, Managing Director

As the Oil & Gas industry continues to strive for efficiency gains and costs savings, maximising the output of existing assets is of critical importance. Subsea well intervention operations play a key role in the pursuit of these improved recovery rates.

As new well intervention technologies are developed, it is vital that this new equipment is properly assessed for the harsh environment in which it is used.  Finite Element Analysis (FEA) is used to determine the structural capacities of such items. When considering complex geometries, such as threaded connections, there are a number of important factors that require careful consideration to ensure that reliable results are obtained.

Equipment used in subsea well intervention is typically qualified to API 17G / ISO 13628-7.  This technical webinar will give you a clear and concise understanding of how to apply these codes to threaded connections and other complex geometries. In 30 minutes, you will get:

  1. An overview of the approaches to determine the structural capacity of a threaded component.
  2. Factors to consider when assessing the structural capacity of threaded components.
  3. Application of the assessment criteria.
  4. Validation of the results against test data.

A PRACTICAL AWARENESS OF QUALIFYING PRODUCT TO THE HPHT DESIGN GUIDELINE API 17TR8 


Speaker: Richard Farnell, CEng MIMechE, Principal Engineer

Hosted by:  Michael Williams CEng FIMechE, Managing Director

The deepwater industry has emerged from the downturn in a reinvented form; a significant reduction in the field development costs and development times has put the break even point of a ‘conventional’ deepwater development on a path of convergence to the break even point of an ‘unconventional’ tight oil & gas play. Operators who abandoned the ‘old’ deepwater approach in the downturn are adding the ‘new’ deepwater approach back into their investment portfolios.

As we see the number of High Pressure High Temperature (HPHT) developments starting to increase, subsea equipment and well intervention Engineers need to have a clear and concise understanding of how to qualify their product to the new HPHT design guideline API 17TR8 in a timely and a cost-effective manner.

This technical webinar will give you that clear and concise understanding. In 30 minutes, you will get:

1. An overview of the new API 17TR8 design guideline.
2. A description of the qualification options, i.e., API 6A/API 6X/API 17D, ASME VIII D2 (linear), ASME VIII D2 (nonlinear), ASME VIII D3 (nonlinear).
3. Guidance on the respective design margins, product specification levels (quality control requirements) and limits of validity.


AN ENHANCED APPROACH TO THE FATIGUE ASSESSMENT OF DECK-MOUNTED EQUIPMENT


Speaker: David Udell CEng FIMechE, Chief Engineer

Hosted by: Michael Williams CEng FIMechE, Managing Director

The fatigue assessment of deck-mounted equipment is often deferred the end of a project because it can only be conducted accurately once the detailed design of the equipment is complete, the deck positioning is finalised, the vessel RAO data is available, the operational load cases have been defined and a full set of sea states has been established for operation and transit; this data may not all be available until the vessel is about to sail.

The inevitable squeeze on time can drive an overly simplistic approach to the fatigue assessment of the equipment which will result in a design which is both over-weight and expensive; this simplistic approach may also omit certain load cases which may ultimately lead to the premature failure of safety-critical components.

This webinar will illustrate an enhanced approach that avoids all of these pitfalls through the use of advanced finite element analysis techniques, efficient data handling of up to 1,000,000 load cases, accurate representation of the vessel frequency and phase response, economical post-processing routines and a practical interpretation of the guidance in DNVGL-RP-C203.

The benefits of this enhanced approach are the removal of overly conservative loads, the early identification of failure in critical regions and the completion of a detailed fatigue assessment to the satisfaction of both the equipment owners and the certifying bodies in less than 50% of the currently accepted time.


RELATED CASE STUDIES


DRY SEAL GASHOLDER AS-BUILT MODELLING USING FINITE ELEMENT ANALYSIS

MINIMISED REVENUE LOSSES

AVOIDED UNNECESSARY INTERVENTIONS

FEA ENSURES FIRST TIME PASS DURING DYNAMIC TESTING

SIGNIFICANTLY REDUCED COSTS

SIGNIFICANTLY SHORTENED TIMESCALES

PREMIUM CONNECTOR – AUTOMATION DELIVERS 99.9% CERTAINTY IN 50% LESS TIME

INDEPENDENTLY VERIFIED PRODUCT COMPLIANCE

REDUCED DEVELOPMENT TIME BY 24 WEEKS (50% REDUCTION)

PROVIDED CERTAINTY OF THE QUALIFICATION TESTING

WELL INTERVENTION TOWER - NEW ANALYSIS METHODOLOGY EXTENDS FATIGUE LIFE BY 30%

EXTENDED THE FATIGUE LIFE BY 30%

REDUCED ANALYSIS TIMES BY 50%

OBTAINED CLASS APPROVAL AT THE FIRST SUBMISSION

XT FLOWLOOPS – NEW METHODOLOGIES & AUTOMATION TOOLS DELIVER HUGE GAINS

REDUCED COSTS BY £100,000

EXTENDED THE FATIGUE LIFE BY 70%