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© 2015 BAKER HUGHES INCORPO RATED. ALL R IGHTS RESERVED. TERM S AND CONDIT I ONS O F USE: BY ACCEPTING THIS DOCUMENT, THE RECIP I ENT AGREES THAT THE DO CUM ENT TOGETHER W ITH ALL INFORM ATION I NCLUDED THEREIN IS THE CONFIDENTIAL AND PRO PRIETARY PROPERTY OF BAKER HUGHES INCORPO RATED AND I NCLUDES VALUABLE TRADE SECRETS AND/O R PROPRIETARY INFO RM ATION O F BAKER HUG HES (COLLECTI VELY " I NFORMATIO N") . BAKER HUGHES RETAI NS ALL R IG HTS UNDER COPYRIGHT LAW S AND TRADE SECRET LAW S O F THE UNITED STATES OF AM ERI CA AND OTHER COUNTRIES . THE RECIP IENT FURTHER AGREES THAT THE DO CUM ENT M AY NOT BE D I STRIBUTED, TRANSM ITTED, COPI ED O R REPRODUCED I N W HO LE OR IN PART BY ANY M EANS, ELECTRO NI C , M ECHANI CAL, OR O THERW ISE, W I THOUT THE EXPRESS PRI OR W RITTEN CO NSENT OF BAKER HUGHES, AND M AY NOT BE USED D IRECTLY OR INDIRECTLY IN ANY WAY DETRIM ENTAL TO BAKER HUGHES ’ I NTEREST.

Pipeline PIG Data RecordingFeasibility of a Programmable SOC based Data Recorder.By: Bruce Hewitt

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Outline

￭Why Inspect Pipelines￭ Pipeline Environment￭Magnetic Flux Leakage￭ Recorder Functions￭Microprocessor Based Implementation￭ Programmable System on Chip SOC Implementation

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Why Inline Inspection

￭ To Expose hidden Corrosion and Mechanical Damage that is in a pipeline. ￭ Repair Prevents Serious Accidents

– Extensive Property Damage– Serious Environmental Damage

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Pipeline Environment-- Pressure-- Navigate Bends at 10km/hr-- Changes in wall thickness-- Valves and Tees

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Pipe Wall

MFL Tool – Backing Bar

Magnet Magnet

Brush Brush

Leakage Flux

Sensor Head

Defect

Principle of Magnetic Flux Leakage

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Recorder Function 1 -- Normalization

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Recorder Function 2 – Misalignment Correction

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Recorder Function 3 -- Block Based Compression

￭ Premise – Need “Loss-Less” compression and Corrosion is localized

￭ Process Blocks of N samples￭ Pass 1 – Calculate histogram of sample variations￭ Pass 2 – Encode the samples that have large variations with more bits￭ Pass 3 – Encode the samples that have smaller variations with fewer bits

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DSP/Micro Controller Based Implementation

Recorder Processing Functions Recorder Storage

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System on Chip -- SOC

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Custom FPGA Component for Data Recorder

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Custom FPGA Resources

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SOC Based Implementation

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Benefits & Possibilities

￭Higher Compliance Tools – Smaller Electronics Package￭Inspect Longer Lines – Power needed for Data Processing

reduced by 50% for 36 inch tool￭Improve Reliability – Remove 1 level of interconnect￭Improve Defect Detection and Characterization – Can

Support higher sample rates￭Smaller Traps – Consider a single body tool

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Thank You