Enhancing the Integrity and Uptime of your Drilling Operation

add energy have worked with Stena Drilling since 2007 to help enhance safety,

uptime and integrity of all 6 assets within their fleet. Below is a timeline overview,

highlighting the work that we have done for Stena.

A Proven Track Record Optimising Stena Drilling’s rig productivity and integrity

“On behalf of Stena Drilling may I thank you and your excellent team for the effort put into our recent maintenance reviews and stock criticality reviews.

Having used the services of Add Energy over a number of years we have seen great results and a continuous improvement in our equipment reliability and availability , which has helped Stena Drilling to become one of the world’s leading drilling contractors. The annual maintenance reviews pay for themselves year on year and are a valuable tool in our arsenal when aiming for zero downtime.

The stock criticality review highlighted to us where we were exposed to possible downtime due to lead times on spares, but also highlighted where our minimum stock level was set too high for some equipment spares.

Often the results of well planned maintenance activities or day-to-day running of the stores go unnoticed but by using the knowledge and experience of Add Energy we have continued to improve year of year and look forward to working with Add Energy in the future.”

Maintenance Superintendent, Stena Drilling

Client Testimonial

add energy implemented a robust maintenance strategy by analysing failure to determine how to

mitigate against the causes and effects of failure. This study;

Optimised asset safety by ensuring all SCE’s are properly maintained

Maintained a high safety integrity culture

Improved operational uptime by ensuring all operational critical equipment is being maintained

at an optimal level

Enhanced cost benefits through improved uptime

A Failure Modes Effects Analysis (FMEA) Study Equipment specific assessment examining processes and sequencing of events to assess actual and potential risk, failure, and points of vulnerability and prioritizes areas for improvement

add energy reviewed this policy document to provide guidance on

the application of critical spares management, focusing on specific

spares used for the maintenance operations on critical equipment.

Benefits:

Enables the installations to be maintained at an optimal level

Allows only recommended spares from OEM documents to be

purchased

Establishes processes on how to select appropriate suppliers

Enhances the stock management system to ensure the critical

spares holding is optimal

Reduces the effects of high impact equipment failure

Spares Philosophy Review A review of Stena’s Critical Spares Management Philosophy, Policy and Strategy

Company Mission Statement Philosophy

Other Functions Philosophy

Operations Philosophy

Maintenance Philosophy

Spares Philosophy

Spares Policy

Spares Strategies & Procedures

add energy conducts an annual historical maintenance review using

our bespoke software solution tool: Look-C. The tool engages in a

statistical analysis of the clients CMMS to assess equipment

performance, from this, conclusions are made, equipment failure

trends are identified and recommendations for improvement are

provided. This review:

Reduces equipment downtime

Identifies bad actors

Establishes reasons for failure

Enhances equipment availability

Enables costs saving solutions to be established through

optimised maintenance routines

Reliability Centred Maintenance (RCM)ReviewAn annual reliability analysis of each asset in the entire fleet to assess equipment performance, by equipment type and system to establish bad actors and focus synergies to prevent failure reoccurrence and optimise maintenance

add energy engages in a spares criticality review to reduce equipment

downtime through immediate access to critical spares. The review

compares existing equipment criticalities, spares criticalities, rig stock

classification, the safety case and the spares strategy against existing

industry best practice. Doing this;

Ensures that safety critical spares are always at hand, on demand

Reduces equipment downtime through reduced maintenance hours

Identifies obsolescence

Allows best practice standards to be achieved

Provides recommendations for improvement of your spares holding

Spares Criticality Review

An annual review of the fleets spares criticality coding for safety critical equipment, based on the client’s spares holding philosophy

add energy developed a KPI analysing tool for Stena Drilling,

the tool incorporated key performance indicators that assessed

maintenance and reliability performance of their entire fleet. The

tool was delivered as a programmed excel spreadsheet that

produces a graphical output and traffic light signals when

conjoined with the CMMS.

Benefits:

Allows clients to understand how well they are really

performing

Ensures Asset Management objectives are achieved

Enables asset performance to be continually improved

Analysis of Key Performance Indicators Exposing key performance areas critical to the safety and operation of the client’s asset that need to be focused on to enforce a culture continuous improvement

This project reviewed equipment criticality, defined

maintenance activity type codes for maintenance

tasks, performed maintenance criticality optimisation

and assigned maintenance criticality coding to the

maintenance tasks

Benefits

Full asset Compliance Integrity against the

safety case ensuring SCE’s are fully maintained

and assurance values measured and achieved

Optimised Planning Tolerances to ensure

Essential maintenance tasks are prioritised

Gaps are identified and addressed

Maintenance Task Criticality and Compliance Review An analysis of the entire fleets maintenance activities

N/A

PCA PCEPCM

PFT PIM PIN PLUPOC

POV

PSE PVE

MAT Code 3 0 6 3 8 110 0 0 35 0 1 0 19

MAT Code 2 0 8 41 1 244 0 0 41 0 42 206 26

MAT Code 1 19 11 16 12 69 103 670 6 6 51 43 11

Total PercentageDistribution%

1.1%1.4%3.3%1.2%23.4%5.7%37.1%4.5%0.3%5.2%13.8%3.1%

0.0%

5.0%

10.0%

15.0%

20.0%

25.0%

30.0%

35.0%

40.0%

0

100

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500

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Fre

qu

en

cy

Maintenance Activity Type Codes

Benefits

Fully comprehensive AS-Build P&ID, E&ID, etc equipment

tag take off and cataloguing

Full and complete asset register of maintainable equipment

complying with engineering controls documentations,

including tagging philosophy, engineering numbering

system, and written scheme of verification

Maintenance strategy PM library development in compliance

with equipment criticality analyses, including RCM, RBI, IPF,

international and local standards and Norms

Equipment maintenance optimised to ensure equipment

specific failure mode mitigation

Assurance that the planned maintenance schedules are

optimised to maximise uptime through significantly reducing

corrective downtime

Client integrity assurance from high safety critical equipment

reliability

Cost benefit assurance from optimum uptime of operational

equipment

Full Asset Maintenance Build of a new Semi Submersible Fully comprehensive Asset Register Build and development of equipment specific maintenance strategies ensuring compliance with the safety case, manufacturer recommended maintenance, international standards and localisation

Get in TouchAberdeen Office+44 (0)1224 645 999

Stavanger Office (Head Office)+47 51 95 00 00

www.addenergy.no

Peter AdamManaging DirectorAsset Integrity & Maintenance Optimisation

peter.adam@addenergy.no

Ross WhyteBusiness Development ManagerAsset Integrity & Maintenance Optimisation

ross.whyte@addenergy.no

Natalie MacraeBusiness Development & Marketing CoordinatorAsset Integrity & Maintenance Optimisation

natalie.macrae@addenergy.no

Thank You