Advanced Technologies Resolved ESP Monitoring ... - Baker Hughes

Case HistoryAdvanced Technologies ResolvedESP Monitoring ProblemsBaker Hughes reduced rig time with effective completions designBenefits• Decreased risk of electricalinterference between ESP anddownhole gauge• Reduced rig time with bettercompletion design• Increased reliability of motortemperature sensor• Eliminated need for additionaldownhole cabling and equipmentto monitor ESP system• Measured additional andredundant parametersWell background and challenges• Obsolete equipment• Electrical interference between theESP and the downhole gauge• ESP trips because of bad dataBaker Hughes solution and results• SureSENS 125 permanent downholemonitoring system• SureFlo 298 flowmeter system• WellLIFT E ESP monitoring system• Reduced risks of ESP downtimeOld equipmentA major North Sea operator has used Baker Hugheselectrical submersible pumping (ESP) systems andpermanent downhole gauges for more than10 years. The systems were configured across aventuri flowmeter and used on a project with morethan 20 wells.The downhole gauge instrumentation collectedcritical pressure and temperature data and usedthe data to calculate accurate and reliable flowrates. The downhole gauges also protected theESP systems from failures. They warned the theoperators when an ESP was either overheating oroperating outside of its design parameters.As anticipated, the equipment had a finite lifecycle and began to produce electrical interferencebetween the ESP and the downhole gauge. Theinstrumentation was also producing bad data thatcaused the ESPs to be tripped.New technologyIn 2008, Baker Hughes identified the biggestproblem was the age of the system and equipment.Upgrading the technology would address theequipment obsolescence and eliminate the otherproblems that were occurring.After discussions about new Baker Hughestechnologies, the operator selected a downholeinstrumentation technology that would also bepart of the design of the upper completion.TubingSureSENS 125 Gauge andSureFlo 298 Flow MeterPacker withFeed-throughWellLIFT DischargeGauge UnitESP PumpMono-conductor TECinternally connected to ESP cableESP Ported Headand Seal AssemblyCable SpliceTEC Cable (TubingEncapsulated Cable)ESP CableMono-conductor TECESP MotorWellLIFT MotorGauge Unit

The operator decided that the existing ESP technology would remainthe same, but the downhole gauge architecture would change. Theoperator selected the following Baker Hughes technologies:• SureSENS 125 downhole gauges to provide accurate pressureand temperature data for the life of the project• SureFlo 298 flowmeter system to give real-time productiondata without affecting recovery potential• WellLIFT E ESP monitoring system to supply downhole, surfaceand diagnostic parameters, enhance system management, andprolong the equipment lifeBoth the operator and Baker Hughes wanted to make sure theproposed new technology would meet the future requirementsfor the surface equipment. To avoid the problems associated withintegration into the nearly full, existing system, a new, separatesystem was implemented.The new system used the same Baker Hughes software andallowed the data from the SureSENS 125 gauge and WellLIFT ESPmonitoring system to be collected in a single place before beinghanded off to the client’s control and database systems.Using the new technologies, the customer has worked over anumber of wells and confirmed a significant increase in overallsystem reliability.Real-time productiondata with the SureFlo 298flowmeter system.WellLIFT ESP monitoring system.www.bakerhughes.comDisclaimer of Liability: This information is provided for general information purposes only and is believed to be accurate as of the date hereof; however, Baker Hughes Incorporated and its affiliates donot make any warranties or representations of any kind regarding the information and disclaim all express and implied warranties or representations to the fullest extent permissible by law, includingthose of merchantability, fitness for a particular purpose or use, title, non-infringement, accuracy, correctness or completeness of the information provided herein. All information is furnished “as is”and without any license to distribute. The user agrees to assume all liabilities related to the use of or reliance on such information. BAKER HUGHES INCORPORATED AND ITS AFFILIATES SHALL NOT BELIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES FROM ANY CAUSE WHATSOEVER INCLUDING BUT NOT LIMITED TO ITS NEGLIGENCE.© 2011 Baker Hughes Incorporated. All rights reserved. 30690