动态钻井环境中的地层压力测试

:(())():()(LWD)(FTWD)GeoTAP,,,,,GeoTAP/7minGeoTAP,WFT,,1lb/in2FTWDGeoTAP(DST)(2050),,WFT()DST,,DSTLWDLWDFTWD,LWDGeoTAPFTWD(2050WFT)2002,2003,GeoTAP,WFTWFT,WFTLWDLWDGeoTAP,,,GeoTAPGeoTAP,,WFT,,,WFT,,WFTGeoTAP,WFTGeoTAPGeoTAPLWDFT2WD,GeoTAPWFTGeoTAP,31:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(M/LWD)6$/in,28ft,,7$/in-in,GeoTAP,,91875in101625in,M/LWD,SperryPWDPWD(GeoSpan)GeoTAP,(),,,GeoTAPGeoTAP,Sperry2SunM/LWDM/LWD,GeoTAP,LWD,BATMRIL2WDGEOPILOTGeoTAP(1),7min,,,,,,,,100klb1GeoTAP(M/LWD),GeoSpan,M/LWDPWD(GeoTAP),,GeoTAP,(PDM),GeoTAPPWD5Hz,,,1GeoTAPPhyd16lb/in2Pset6lb/in2Pdd6lb/in2tdd10s,Pstop1lb/in2Phyd26lb/in2tdd1stbu1s015s67%1lb/in2(Pf-Pdd)Pf1lb/in2015lb/in2,,41212(200512)©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=Pdd=14696qdd2prkf(1)10cm3/s110cm,1000015mD,25000lb/in25000lb/in2,100GeoTAP17GeoTAP1D011mD228500m1421042835m163800lb/in2,,30%GeoTAP,,,GeoTAP,,3,GeoTAP,WFT,:Pbu(t)=Pf-e-t(2)Pdd(t)=Pset-Pset-Pdd1-e-tdd1-e-t(3),t(T-tstart),t(T-tdd),GeoTAP,Pf,1,,,1min,,10(6lb/in2),2min,,,,kfcfl():kf=14696qdd2pr1-e-tdd(4)cfl=14696kf4Vflrp(5)51:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Pmh),,,(Pf)Psc(Pss)(Pf),PSCPsc=PSS-Pf=qm4hkfln4kftcr2w(6)(,lmcnrw),,(Pmh)(Pss)(qm)qm=2rwhkmclmc(Pmh-Pss)(7),:vm=qm2rwh=kfere(Pss-Pbu)(8)e,,(6)(8),Psc=Pmh-Pbu2rwlmckmckf1+erelmckmckfln4kftcr2w(9),PDsc=PssPob=Pss-PfPmh-Pbu(10)tD=4kftcr2w(11)rDre=ererw(12)Dmc=rwlmckmckf(13)(9),PDsc(t)=12Dmc1+DmcrDreln(tD)(14)PDscPDscPssPobPobtDrDePbuPss,Dmc,,,;,,(1)Chin121-lmcrw2log1-lmcrw-12+14=kmcmcPmctr2w(15)61212(200512)©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(15)Pm,,,Pm(t)dtPmt,(15),,(,lmcrw0),,(15):lmc(t)=2kmcmcPmct(16),,lmc/rw0120t,7%,,,(17)(14),PDsc(t)=12ni=1(Ai-Ai-1)ln(tD-TD(i-1))(17):Ai=Dmc(ti)1+rDreDmc(ti)(18)(2),Jones,,(16)(17)kmcmcmc=lmc(t)h(t)=fs(1-fs)(1-mc)(19)kmc=lmc(t)2th(t)p(20)xmclmc(t)h(t)t,(19),mcfs,,,2,3,(14),(16)(17),011cm10min,,3kf(md)1100125(cP)110C1/(lb/in2)310-6kmc(md)010001mc0105fs0149mc110lmc(cm)011Pob(lb/in2)100rw(cm)1010re(cm)510e111h(cm)1,,FTWD(,Pob=Pmh-Pbu)100lb/in2,817lb/in2411lb/in290min,411lb/in2417lb/in2,1000min(17h)518lb/in21mD,1mD,,10mD,FTWD71:©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(17),,A:Ai=Dmc1+rDreDmcsin(2fti)+GtiPob(21)(3),115lb/in2,10s115lb/in2,,,,,1mD,FTWD,,1mD,FTWD,,,GeoTAPFTWD,FTWD,,,FTWD,FTWDSPE87090(20040823)(12),,,20ft,12/ft,:;;,;816lb/gal;50bblPWB;PWB48h,1000lb/in2;PWB,PWB;1000lb/in2,;1011lb/gal816lb/gal,;,,,;20ft,,12/ft,1011lb/gal;;,1000lb/in2;,;816lb/gal;;JPT200482(20040928)81212(200512)©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.