我国煤层气多分支井钻井技术可行性研究

:,1965,;1989;:(065007)44:[phone]E2mail:[e-mail]()..,2004;24(5):5456,,,,,0.1310,(),,4,90,500900m50m,300800m,,,:3#15#,3#6.0m,509.3515.2m,15#3.0m,606.6609.6m,7,SW30:3#425034070160;83909790(1)340,1160,2407013#509.3515.2m512m8/10m,71.62m1(1)SY/Y6090200045200451()()(m)H1(m)H2(m)S1(m)S2(m)(m)(m)125083724407263.2936.85121000234090924209292908512100037097102410102114.4885.751210004160908243082829185121000,,,72102m,()(),,,410440m,50150m,,,,(1724)/30m(2),,,122(3)130m(,),582m,,():Á215.9mmÁ177.8mm:Á215.9mm3A+Á214mm+Á177.8mm(24)m+Á214mm+Á177.8mm1+Á214mm+Á177.8mm12+Á127mm():Á152.4mm3A,8001000m:Á152.4mm3A+Á121.0mm++Á88.8mm1+MWDLWD+Á88.8mm4+Á88.8mm6+Á73.0mmN():Á120.6mm46,300600m,,45:Á120.6mm+Á89.0mm++Á88.8mm1+MWD+Á88.8mm4+Á88.8mm6+Á73.0mmN,,,,,(36m),,,LWD();,MWD(,)(),,,55245,,,1.,,,,,,,,(),,API,,,,;:,,2./,,,,,:(),,,,,,3.,,3#,,3#1.301.50g/cm3,3070s,,,,,,,,,,,,,,,,:,,(1),,,,(2),,,,,,(3),,12,,,(60)652004513:N=(1-m/2c-1-m/2s)/c(Fm)m1-m2(5),,20200r/min3000m,1000m,6000Nm,15MPa,12MPa,215.9mm30,43,9/30m1070kN,200kNÁ127.0mm,0.127m,0.1014m,373.28N/mE=206109Pa,1mm,c=6.1410-14,m=3.16,KIC=98.9MPam,,,,,,,1BaryshnikovA,CalderoniA,LigroneA,FerraraP.Anewapproachtotheanalysisofdrillstringfatiguebehavior.SPE305242DaleBA.Anexperimentalinvestigationoffatiguecrackgrowthindrillstringtubulars.SPE155593,..,1990;18(8):38444,,..,2000;20(3):57595HowardJA,HalbertME,ArthurLubinski.Systematictrackingoffatigueandcrackgrowthtooptimizedrillstringreliability.SPE/IADC257756JiangWu.Drill2pipebendingandfatigueinrotarydrillingofhorizontalwells.SPE373537,..:,1988:1011188,,.:.,1994;18(3):49509..:,1990:233410..:,2001:304611.().:,1995:1206121312..:,1981:32533713..:,1986:2940(2003212216)(56)(4),,1,..:,20032..:,2003:2202283()..:,19904..,2000;9(2003210215)0620045interferenceintheregion.TheRadondomainfilteringisthat,byapplyingtheresidualmultiplereflectionmoveoutofCMPgatherafternormalmoveoutcorrectioninRadondomainandaccordingtothefrequencybandfieldintheregion,itisrequiredthat,inlowfrequencesection,theresidualmultiplereflectionmoveoutattheminimumoffsetshouldbeinexcessofmorethanquartercycleandtheresidualmultiplereflectionatthemaxi2mumoffsetmustbeinexcessofabovealowfrequenceapparentcycleascomparedwiththatattheminimumoffset;andthat,inhighfrequencesection,thedifferencebetweentheresidualmul2tiplereflectionmoveoutatthemaximumoffsetandthatattheminimumoffsetcantexceedthehighfrequenceapparentcyclebyafactorofNminus3,thusensuringthemultiplereflectionsbeingfallenintherejectionareaofstackdirectionproperty.ThroughprocessingthenewestacquisitiveseismicdatabyuseofRadondomainfilteringmethodandincombinationwithinternalmute,itwasprovedthattheeffectonattenuatingthemultiplereflectioninYiningSagisobvious,thusprovidingeffectivepro2cessingmethodsandexperienceforrejectingthemultiplereflec2tioninthisregioninthefuture.SUBJECTHEADINGS:YiliBasin,Multiplereflection,Noise,Waveattenuation,Radontransformation,NormalmoveoutcorrectionYangChunmei(female,engineer),bornin1970,graduat2edingeophysicalprospectingattheSouthwestPetroleumInsti2tutein1994.Nowsheisengagedintheseismicdataprocessingandmethodresearch.Add:Puyang,Henan(457001),ChinaTel:[phone]RELATIONSBETWEENSEDIMENTARYMICRO2FACIESANDGEOPHYSICALPARAMETERSOFSHALLOWRESERVOIRSINBOHAIGULFXiaQinglong1,2,ZhaoZhichao2andZhaoXian2sheng2(1.BohaiResearchInstituteofChinaOffshoreOilResearchCenter;2.InformationEngineeringIn2stitute,ChengduUniversityofTechnology).NATUR.GASIND.v.24,no.5,pp.5153,5/25/2004.(ISSN1000-0976;InChinese)ABSTRACT:InBohaiGulf,theshallowoilandgasreser2voirsaremainlycomposedofthestrataoffluvialfacies,thelow2ermemberofMinghuazhenFormationofNeogene,andthelat2eralreservoirpredictionisgreatlydifficultbecauseofanacutelyhorizontalchangeinsedimentaryenvironments.Aresearchonsuchaquestionwascarriedoutbytheauthors.Throughcom2prehensivelystudyingthelogandseismicdatacollectedformmorethanfortywellsintworepresentativeshallowoilandgasfieldsinBohaiGulf,thesedimentarysystemsoffluvialfaciesinresearchareaweresetup;thetypesofsedimentarymicrofaciesweredivided;andthecharacteristicsandidentificationmarkersofthegeologicalfacies,logfaciesandseismicfaciesofmajorsed2imentarymicrofaciesweredetermined.Inaddition,therelationsbetweenthetypesofmainfluvialsedimentarymicrofaciesandthegeophysicalparametersasvelocity,densityandwaveimpedancewerealsostudiedonthebasisoffinelydividingsedi2mentaryfacies.Throughinvestigationitwasfoundoutthatsomegeophysicalparametersareobviouslycontrolledbythesed2imentarymicrofaciesinthisarea;thefittedcurvesindicatingthechangesoftheseparametersasvelocity,densityandwaveimpedanceofvarioussedimentarymicrofaciesatdifferentdepthsareinkeepingwiththechangelawofquadraticcurve;andrele2vantexpressionsaregivenoutinthepaper.Because85percentoftheoilandgasreservoirsinthisareaarepoint2barsandbodiesandthewaveimpedanceanddensityofthepoint2barareobvi2ouslydifferentfromthoseoftheothermicrofaciesinthelowermemberofMinghuazhenFormationatdifferentdepths,themessagesofpoint2barsandbodiesmaybeextractedbyfurtherprocessingtheseismicinversionwaveimpedanceordensityda2t