川东北海相地层抗钻特性及钻井提速分析

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1、厂一?!一r、}，～8幺ResearchonAnti-DrillingCharacteristicsandIncreasingDrillingSpeedforMarineFormationintheNort：heastAreaofSichuanCaomei(C)il&GasWellEngineering)DirectedbyProf．ZouDeyongAbstractThemarinedepositformationofNortheastSichuanisthemainbattlefieldofoilrese

2、rveresourcesforSinopec．However,thereservoirformationsaleburieddeeplyandhavehi曲hardness．Allthesedisadvantagesbringlotsofdifficultiesforthehighly-efficientdrilling．Inordertospeeduptheprogressofexplorationanddevelopment,themethodofanti—drillingparameterspredic

3、tioninthecarbonateformation,drillingmethodsselectionandefficientrockfragmentationtoolsoptimizationdesignweredeeplystudiedcombiningthemethodsoflaboratorytest,statisticalanal)sisandtheoreticalresearch．(1)Theanti-drillingparameterssuchasdrillability,compressiv

4、estrengtl：l’intemalfrictionanste,hardnessandplasticitycoefficientwritemeasuredthroughlaboratoryexperiments．Basedonthis，therelationshipbetweentheseanti—drmingparametersandlogginginformationwereresearchedandthispaperestablishedthemethodsthatusingtheloggingdat

5、atopredicttheformationanti·drillingparameters．(2)Collectingthegeologicalinformationandlogginginformation,wesummarizedthelithologicfeaturesandanti-drnl吨characteristicsofthecarbonateformationinthenorthoastofSichuan．(3)Throughcomparingandanalyzingtherockbreaki

6、ngmechanismsandusingfeaturesofdifferentdrillingmethods，thearticlesummarizedtheappliablecharacteristicsofdifferentdrillingmethods．BasedonthesummmTanal)sisofcostcomponentofdrillingmethods，weestablishedthecostmodeltoevaluatetheusingeffectsofdifferentdrillingme

7、thods．(4)Gatheringthewellcompletiondata,thepaperanalyzedthedrillingmethodsthathavegooduseeffect．ThepetroleumdrillingformationWasclassifiedreasonablyusingthefuzzyclusteringanalysismethodwimtheclassificationbasisasformationanti-drillingcharacteristics．Theprin

8、cipleandthewaytooptimizethedrillingmethodsaccordingtothes缸atumanti-drillingcharacteristicsweredetermined．Accordingtoanti·缸llingcharacteristicsofmarinestratuminthenortheastareaofSichuan,themost1簪efficie