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一种钻井液漏失位置测量新方法
Title:ANovelMethodforMeasuringLostCirculationLocationsinDrillingMud
Abstract:
Lostcirculationisacommonandchallengingproblemencounteredduringdrillingoperations.Itreferstotheunintentionallossofdrillingfluidintoporousformations,leadingtoreduceddrillingefficiency,increasedcosts,andpotentialwellborestabilityissues.Accurateandtimelyidentificationoflostcirculationzones(LCZs)isessentialforeffectivelyaddressingthisproblem.Inthispaper,anovelmethodformeasuringlostcirculationlocationsindrillingmudisintroduced,whichcombinestheprinciplesofultrasonicimaging,real-timedataanalysis,andcomputationalfluiddynamics(CFD)simulations.TheproposedmethodaimstoprovideareliableandefficientsolutionfordetectingandlocatingLCZs,facilitatingpromptdecision-makingandmitigatingassociatedrisks.
1.Introduction:
-Backgroundandsignificanceoflostcirculationmeasurements
-Stateoftheartinlostcirculationdetectiontechniques
-Challengesandlimitationsfacedincurrentmethods
-Objectivesofthestudy
2.Methodology:
2.1UltrasonicImaging:
-Principleandworkingmechanismofultrasonicimaging
-Selectionandplacementofultrasonictransducers
-Sonardataacquisitionandprocessing
-Imageenhancementtechniquesforimprovingresolutionandaccuracy
2.2Real-timeDataAnalysis:
-Utilizingpressureandflowratesensors
-Dataacquisitionandintegrationwithultrasonicimagingresults
-SignalfilteringandanalysisforLCZidentification
-Developmentofanalgorithmforreal-timeidentificationandtrackingofLCZs
2.3ComputationalFluidDynamics(CFD)Simulations:
-IntroductiontoCFDanditsroleinlostcirculationmeasurement
-ModelingofLCZsandfluiddynamics
-Simulationsetupandboundaryconditions
-ValidationandcalibrationoftheCFDmodelwithexperimentaldata
3.ExperimentalSetupandDataCollection:
-Selectionofdrillingmudpropertiesandadditives
-Constructionofatestingrigandwellboresimulator
-Conductingcontrolledlostcirculationexperiments
-Acquiringreal-timedatafromultrasonictransducersandpressure/flowsensors
4.ResultsandAnalysis:
-ComparisonandcorrelationofsonarimageswithactualLCZs