Introduction
Our clients at BP Hull decided to invest in Credo to help them to improve their inspection management and also to bring them into compliance with the PED regulations.
Following a period of commissioning activities our client successfully used Credo for the first time during a Turnaround where they very quickly noticed a measurable improvement in the management of their inspection activities. In their first year with Credo in Production they also identified quantifiable cost savings.
Evaluation
Credo was initially supplied on an evaluation basis to allow the customer to determine whether or not Credo fitted in with their needs. To help them come to a decision our client also visited sister companies within the UK where Credo was already installed.
Workshop
Before moving to purchase, several of our client’s inspection team attended a two-day workshop at our UK office. The goal of the workshop was to confirm that Credo offered the functionality the expected and also to allow Credosoft to gain an insight in local technical issues, which might influence the way Credo was implemented. Shortly after the workshop our client moved to purchase Credo.
Data Import
Our client held around thirty years of inspection history in both paper and software formats. Naturally they wanted to be able to exploit this valuable data in the Credosoft database. Data migration is one of the key tasks that the Credosoft team manage during most Credo projects. Credosoft have unrivalled experience in this area, and over the years have migrated data in various formats and of varying quality.
Following a brief period of data analysis, Credosoft demonstrated to our client that we would be able to transfer their data to Credo. Our client managed data in the following formats: -
In house MS Access database
In house character based inspection system
Commercially available RBI database
MS Excel files
Paper inspection reports and drawings
Approximately 1,25 million records were migrated to the Credo database. The migration routines created the Equipment, Piping and Thickness records and associated Technical and inspection data.
Going Live
Prior to the Turnaround a one-day refresher course for inspectors was arranged at the clients site. This was to give the inspectors and technicians the opportunity to practice using the EPOCH 4 with Credo.
Turnaround / shutdown
The Credo Administrator then identified the Equipment and Piping, which would be inspected and prepared the Ultrasonic Workpacks, which would be used during the Turnaround. Workpacks would be downloaded from Credo to the Panametrics EPOCH 4 and after the survey readings would be uploaded to Credo.
Reports
Our clients used several main report types, including Visual, Weld and Ultrasonic formats. The Credosoft team demonstrated how to use the Credo Dynamic Document builder to create Custom Reports, which could be printed or exported to Adobe PDF format.
Credo Logic Modeler (CLM)
The CLM was utilised during and after the turnaround to analyse Ultrasonic readings. The following is a comment from our customers’ key Logic Modeler user:
Below is comment from inspection staff on the Credo Logic Modeler: -
" Using the CLM I have been able to automatically calculate inspection schedules and schedule next (TM) inspection dates / events based on trends / time to retiral etc. This includes the ability to compare readings and generate actions/ events should the corrosion rate exceed a certain level. This includes the ability to 'normalise' inspection frequencies.
Using the CLM I have been able to calculate the probability / likelihood of failure of certain damage mechanisms e.g. external SCC, internal SCC etc; similarly the CLM can be used to generate consequences of failure and generate inspection actions.
Using the CLM I have been able to generate new object properties based on existing object properties. A simple example of this may be, if you have pipe spec populated as an object property, you can build a CLM table and logic model, which automatically populates material of construction, schedule, wall thickness etc.
The CLM opens up many possibilities for the Credo user to set up custom functions, which automatically derive values and actions and in doing so add value to the inspection process flow."
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