WuM1_1羽状分支水平井充气钻井液技术

:10015620(2006)03004502WuM11张明海1陈永奇1王洪升1蒋明1吴宏宾1杨丽红2张津林2龙寿发1(1.,;2.,)WuM11井由1口多分支水平井和1口采气的直井组成该井斜井段短,井斜率在30/100m以上,主井眼和10个分支井段总进尺6182m,98%以上在煤层中钻进,煤层脆压实性较好,更易发生掉块为满足钻井对井壁稳定性润滑性井眼净化以及煤层保护等的要求,采用钾铵基聚合物防塌钻井液进行充气欠平衡钻井,在钻进中保持钻井液有合适的粘度切力,选用合适的注气压力和注气量以及当量钻井液密度;每钻完一个立柱坚持循环几分钟,上下划眼一次,并泵入CMC高粘钻井液,配合有效使用固控设备,尽量使井眼干净;复配使用粉末状固体润滑剂和液体润滑剂该钻井液性能稳定,易于维护,悬浮携岩能力强,润滑性好,井眼畅通,保证了WuM11井安全快速优质施工该井在煤层钻进中无阻卡现象,井壁稳定,没有出现井壁掉块或井垮现象,水平连通一次成功,10口分支井悬空侧钻一次成功,只用57d即顺利完井,比该地区常规钻井快49倍钾铵基聚合物防塌钻井液井眼稳定煤层气井多分支水平井充气欠平衡钻井悬空定向:TE254.3:AWuM11,11,110,,,1地质工程概况WuM11:311mm62.00m(244.5mm59.85m)+215.9mm950.00m(177.8mm946.50m);:311mm53.00m(244.5mm51.44m)+215.9mm951.00m(177.8mm949.00m)+152.4mm2000m12钻井液技术难点WuM11,,30/100m;,6182m,,;WuM111/m23322;,634,,719.8837,,,878.5,,:张明海,工程师,1998年毕业于西南石油学院化学工程系,现从事现场钻井液技术管理工作地址:河北省任丘市华北石油管理局第二钻井工程公司工程技术部;邮政编码062552;电话[phone]第23卷第3期钻井液与完井液Vol.23No.32006年5月DRILLINGFLUID&COMPLETIONFLUIDMay20063现场钻井液工艺技术3.1一开,,80m3,2000kgFH2(),45~50sFH23.2二开,,,,,,1.11g/cm3,,,,,(712~951m),(0~90),,0.5%PAC141+(1.0%~2.0%)HMP21(NPAN)+(1.5%~2.5%)FT346+(1.5%~2.5%)RH525+(1.0%~2.0%),,,,,10m3(2%RH525+1.5%FT346+1.5%),3.3三开10,,,3.3.1,:,0.5%PAC141+2%KCl+2%(HMP21NPAN=11)+1.5%FT346+2.5%RH525+1.0%,FH21.08g/cm3,40~45s,4mL,,0.5~1.5MPa,8MPa7m3,0.92g/cm3,,,;,0.5%PAC1411.25%~2.5%HMP21NPAN,40~45s,1~3Pa,1.08g/cm3,42~45s,2~4mL,1~3Pa,45min0.06~0.083.3.210,FT346,,,,K+2%,,2~4mL,,,3.3.3(90),,,,,,,,,1min(0.9m3)CMC,,,,,,3.3.4(712~951m),,30/100m;(106182m),,,,(下转第53页)46钻井液与完井液2006年5月3.3井径扩大率对比00100200312.75%13%1.05%,0038.01%0031/mm/m/(m/h)001444.5153.00~1498.002.57311.21498.00~2071.731.51002444.5194.00~1860.002.49311.21860.00~2026.561.01003406.4149.00~1580.505.03311.21580.50~2000.003.134认识与结论1,,,,;,,,,,,;,2PRT,3,,,(收稿日期20051217;HGF=063W6;编辑汪桂娟)(上接第46页)(1.5%~2.5%)FT346+(1.5%~2.5%)RH525+(1.0%~2.0%)),4储层保护技术:(8MPa)(7.5m3)(0.92g/cm3),;K+2%,;,;,2%5施工效果,,,,;,,,10,6认识与结论1,,2,,,3,,dc,4,,5CMC参考文献[1]..:.2000(收稿日期20051209;HGF=063W10;编辑汪桂娟)53第23卷第3期艾贵成等:有机盐聚合醇氯化钾钻井液的应用wereconductedandanumberofformulationsofcementslurrysuitabletocasingsatdifferentdepthsweredeterminedamongthemthereare:lowdensitycementslurry,mediumtemperaturehighdensitycementslurry,andhightemperaturehighdensitycementslurry.Applicationsofallthesecementslurriesofvariedformulationsobtainedgoodresultsallcasespassedthequalityverificationstandard.Keywords:cementingindeepwell,preventionoflostcirculation,preventionofchanneling,stabilityathightemperature,cementslurry,application,PuguanggasfieldFirstauthorsaddress:CementingEngineeringFacultyofZhongyuanExplorationBureau,puyang,HenanStudyandApplicationofaNewTypeLCM.DFCF,2006,23(3):42~44Authors:WUNGFuhua,WEIZhenlu,KANGLianli,YueYanhua,WUFupinAbstract:AnewbridgingtypeLCMnamedLDwaspreparedusingwasterubberproductsasrawmaterialaccordingtoaspecificinnovatedmanufacturingtechnologybasedoncomplicatedphysicalchemicalreactions.ThisLCMisingranularandfibrousshapeofconcaveandconvexlocationsonthornysurfaceandischaracterizedbyitschemicalstabilityathightemperature,somewhatflexibility,toughnessandstrength,lowdensity,acidandalkaliresistanceandnonfluorescence.Theapplicationpracticesprovedthatitformsaeffectivepluggingwithminorpenetrationdepthandhighstrength,lessinfluencesondrillingfluidpropertiesandbenefitstoreducingHTHPFLandcorepermeabilityrecovery.TheoperationsinthesevenwellsinChangqingOilfieldshowedthatthisLCMhassatisfiedeffectonpreventionandkillinglossofcirculationandlowcostincomparisonwiththeroutineLCM.Keywords:drilling,lostcirculation,LCM,rubber,testFirstauthorsaddress:CollegeofPetroleumEngineeringintheChinaUniversityofPetroleum,Dongying,ShandongAeratedDrillingFluidforFeatherHorizontalWellofWuM11.DFCF,2006,23(3):45~46Authors:ZHANGMinghai,CHENYongqi,WANGHongsheng,JIANGMingWUHongbin,YANGLihong,ZHANGJinlin,LONGShoufaAbstract:Wum11welliscomposedofamultilateralhorizontalsectionandaverticalsection.Thewellhasashortdeviationsectionandadeviationangleofmorethan30/100m.Wum11wellwithaoriginalholeand10branchholeshasatotaldepthof6182m.Morethan98%penetrationareincoalformationinwhichcollapseaccidentsfrequentlyoccurasaresultofitisbrittleandhasabettercompactability.Thepotassiumammoniumpolymerbaseantisloughingdrillingfluidwasemployedinaeratedunderbalanceddrillingoperationtomaintainboreholestabilityandmeettherequirementoflubrication,cleandrillingandcoalformationprotection.Andmaintainingappropriateviscosity,yield,gasinjectionpressureandequivalentdensityofdrillingfluidwerealsorequired.SeveralminutescirculationandoncereciprocatereamingwerenecessaryeachverticalcolumndepthandthenmaintainacleanboreholebypumpingCMChighviscosityfluidcoupledwitheffectivesolidphasecontrol.Thecombinationproductcomposedofpoweredsolidlubricantandliquidlubricantwasalsoemployed.ResultsindicatedthatthisdrillingfluidassuredWuM11wellsafe,quickandhighqualitydrillingoperationbecauseitpresentedstableperformance,easymaintenance,strongercuttingssuspensionandtransportation,favorablelubricationandprovidedaunrestrictedborehole.Nostickingandcollapseaccidentsoccurredincoalreservoir.Thehorizontalconnectionandpending85Vol.23,No.3ABSTRACTsidetrack