Qualification of Weatherford’s Red Eye near infrared Water ...

1 Qualification of weatherford s Red Eye near infrared Water Cut ProbeAlexander Quayle (BP), Babajide Adejuyigbe (BP), Andrew Hall (BP)John Lievois ( weatherford )1 Subsea RedEye Water Cut Meter infrared Sensor for Water detection and measurement Water Cut (Multiphase) 0-100% WC GVF Salinity independent Water Detection (Wet Gas) < bbl H2O/MMSCF Water -Hydrate Inhibitor measurement2 Red Eye: How it worksOHHOHHHC3 Starting Point 2009 Topsides unit available 2005 Joint Testing Programme to confirm capability 2007/09 BP, BHP, Shell, Chevron, Total, Conoco-Phillips weatherford specification: 800 surface installations in 2009 Simple and robust design Potential Subsea Applications Detection of Water onset Verification of Water cut Production allocation Flow assurance4 Subsea Qualification Hardware Qualification Compliance with codes and standards Equipment lifetime (25 years+) Pressure integrity (13,000 psi / 900 bar)

2 Robustness to external environment Reliability Retrieval not considered possible Electronics to ISO 13628-6 with additional BP requirements Performance Achieve optimal hardware subsea design Maintain accuracy of measurementTRL NumberDevelopment Stage Completed 0 ConceptBasic R&D, paper concept 1 Proven ConceptPaper study or R&D experimentation 2 Validated ConceptExperimental proof of concept using physical models withfunctional testing3 Prototype tested System function, performance and reliability TestedPre-production system environment tested, production fluid testing5 System TestedProduction system interface tested 6 System InstalledProduction system installed7 Field ProvenTypically 3 years or more w/o failureAPI 17N Table Hardware Process side Dual Barriers Intrusive Probe Material (Hastelloy 276) Sensor Window (Sapphire)

3 Sealing Penetrator API Subsea Flange Housing Electrical connection Connection to flange 1atm electronics housingComponent2008 TRLP robe2 Housing3 Electronics2 Component2013 TRLP robe4 Housing4 Electronics4 Electronics NIR Optical source Optoelectronics Data processing Communications6 Example Qualification Sapphire Window Primary fluid barrier, non-metallic Pre check critical dimensions Initial leak tightness Hydrostatic pressure test to RWP Post test critical dimension check Acceptance Criteria Pressure test to a factor of maximum allowable working pressure No failure! Dimensions within tolerances after test7 Functional Qualification Vibration testing Low frequency testing (5-25Hz, 2mm) Higher frequency (25-150Hz, 5g accel.)

4 2hrs random spectrum with applied notches, 20 2,000 Hz, 6 grmscomposite excitation level Criteria No damage Optical input channels within Internal voltages 5%, ripple 10% Comms > 99% for 30 mins8 Performance TestingTe c h n o l o g y Readiness200820102009201120122013 TRL 2 [Concept Validation]Subsea DesignTRL 2/3 testing of new probeTRL 3 Refinements to design (SWRI & CEESI)SWRIF luidsNatural Gas, Texas Regal (26 ), WaterGVF0-100%Press53 bar (800psi)CEESI Wet GasFluidsNatural Gas, Condensate, WaterGVF98-100%Press1000 barProlab NLFluidsCrude OilSaline WaterNatural GasGVF0 99%Press45 barTRL 4 QualificationCEESI Wet GasFluidsNatural Gas, Kerosene, WaterGVF94-100%Press53 bar (800psi)CEESIF luidsNatural Gas, Kerosine, WaterGVF96-100%Press53 bar (800psi)9 Condensate Testing CEESI 2013 MEGHC liqH2 OTe s t S e t u p BP Condensate Once thru design (liquid) 1000psi, 40 C Gas recirculated, flowrate 30-60ft/s XLM<< installation New 4 Hydrocarbon Circulation System Additional flow metering Thermal control building (Fluid WAT 35 C) Additional pumps10 Condensate Testing CEESI 2013Te s t S e t u p BP Condensate Once thru design (liquid) 1000psi, 40 C Gas recirculated, flowrate 30-60ft/s XLM<< installation New 4 Hydrocarbon Circulation System Additional flow metering Thermal control building (Fluid WAT 35 C) Additional pumpsTest objectives met.

5 Detected Water onset at lower than 1bbl / mmscf gasTracked changes < gas11 Qualification Complete TRL level 4 achieved Can now be specified as part of a BP major project, subject to: weatherford guidance on positioning in the flow Minimum velocities need to be observed TRL 5+ occurs with Site Installation Testing TRL 6 on successful startup12 Conclusions RedEye Water cut measurements have significant value for an operator in: Detection of Water onset Verification of Water cut Production allocation Flow assurance Qualification of the probe for Subsea use is a significant step for this product: Extensive focus on Integrity, Reliability and Performance Completed over a 4/5 year timescale Verified performance with actual operating fluids Now ready for installation Subsea13 THANKS FOR LISTENING!

6 14 Qualification of weatherford s Red Eye near infrared Water Cut Prob