综合超前地质预报超前地质预报在西气东输二线隧道工程中的应用

:,1980,,;:(610017)25:[phone],15982488580Email:[e-mail]胡文君1王进1胡道华1马红21.2.().综合超前地质预报在西气东输二线隧道工程中的应用.天然气工业,2010,30(5):8791.西气东输二线管道全长超过8000km,西起新疆霍尔果斯,东至上海,南至广州香港,是我国石油天然气长输管道建设史上的一座里程碑,全线共设置隧道60余座,隧道处的地质条件复杂为此,在西气东输二线隧道工程建设中,综合分析TSP203超前地质预报仪超前钻孔红外探水和地质素描等多种超前地质预报方法的优缺点,结合工程实际,形成了一套较完整的综合超前地质预报技术体系,为制订相应的施工方案加快施工进度和确保施工安全提供了重要的技术保障介绍了该技术系统的实施流程,其技术特色是将长短距离的地质预报与物探钻探等预报方法相结合,进行综合超前地质预报工程实例经济分析表明:该技术体系的实施,不仅缩短了工期,还大大节约了工程投资成本,具有较好的推广应用价值西气东输二线综合超前地质预报TSP203超前地质预报仪超前钻孔红外探水地质素描工期投资DOI:10.3787/j.issn.10000976.2010.05.0221,,,18,8000km,,,60,,,1.1,,,,[1],,,,,1.2,,;,,,2,2050,207087303:TSP203HY303[2]2.1,,,,,,,,,2.2,,,2.3,,,,,2~6m,,2.4,,,,,[34]2.5TSP203TSP203,TSP,150~300m,100m,1m;90%,85%;TSP203,,[5];2.6HY303,20~30m:30m,,,:!,35m;∀35m,;#∃%;&,,;∋;(33.1,,,,,,,,,,,,(53.85km),,[6]3.213.2.1开挖围岩研究,,88201051,,3.2.2地质素描,,,,,,3.2.3TSP203长距离宏观探测,,TSP203,100~150mTSP2032,30min,90min,,,2TSP2033.2.4红外探测,HY303,TSP,HY3033,,,,33.2.5判断TSP203,,;,3.2.6超前钻探验证预报,,14489303,,,,:!:1,;∀():(),35m,()5m;#:76mm;&(RQD),76mm;∋,,;(,,,3.2.7综合超前地质预报的成果20087,4TSP,1,3,,80m100m,,6K0+68m,TSP,K0+68~K0+103m,,,,,,,,EPC,),∗,,20089,220096,TSP8,,80%,6[78]20091012,K1+615~K1+612m,,,,,∗,TSP,EPC,K1+612~K1+577m1,,K1+612~K1+595m,,,,,);K1+595~K1+590m,,∗~),;K1+590~K1+577m,,∗,1#K0+260m,,,,,,,,HY303,K0+260~K0+295m,20m,,,4,,,1;,1[912]1,(CPESW),,866d,649.95,TSP,,1),,2),,3),90201051/d//d//d/1511.353.8107.53022.7129.11813.66649.82922.03727.84530.22115.92414.35138.5139.83828.76448.32821.23627.16146.13224.22921.95239.33022.72216.62317.496.81410.66347.63325.03022.62#1914.575.389.23#2922118.31813.71#2821.2107.61813.62#6045.32015.14030.25541.5139.84231.73627.2129.12418.18665.04332.54332.51#9471.05642.33828.75642.33526.52115.84836.32518.92317.45239.32418.22821.19168.75340.03828.7134101.25037.88463.46549.13123.43425.75340.02720.42619.67254.44332.52921.97657.43526.54130.98866.55037.83328.72518.91410.6118.316371233.0771583.1866649.9,,,[1],.[J].,2008,37(2):174176.[2].[J].,2007(7):7680.[3],,.[J].,2009,29(12):8789.[4],,.[J].,2008,37(4):353356.[5],.[M].:,2001.[6].[J].,1978(6):1425.[7][R].:,2008.[8]1#[R].:,2009.[9][R].:,2008.[10][R].:,2008.[11][R].:,2009.[12][R].:,2009.(20100324)91303GanJianhua,seniorengineer,wasbornin1971.HegraduatedindrillingfromChinaPetroleumUniversityin1995.Hehasbeenengagedintheworkofdrillingtechnology.Add:No.1,Tai'anStreet,Chengdu,Sichuan610051,P.R.ChinaTel:[phone]Mobile:[phone]Email:[e-mail]yforthewellsdrilledintheacturekarstcarbonatereservoirs:AcasestudyofthewellPu0052ineasternSichuanBasinZhuoYun1,ZengQingxu1,LiuDeping1,XieGongjian1,ZhaoXingquan1,LiGuanquan2,HuRende1(1.EasternSichuanDrillingCompany,ChuanqingDrillingEngineeringCo.,Ltd.,CNPC,Chongqing400021,China;2.No.5DrillingGroup,BohaiDrillingEngineeringCo.,Ltd.,CNPC,Hejian,Hebei062450,China)NATUR.GASIND.VOLUME30,ISSUE5,pp.8486,5/25/2010.(ISSN10000976;InChinese)Abstract:Inordertomeetbigdrillingchallengeslikelowcoefficientofstratapressure,longintervalinlostcirculation,aswellasthecoexistingofthiefzoneandwaterlayerattheTriassicJialingjiangFormationinthePubaoshanStructure,easternSichuanBasin,thispaperpresentsatechnicalideabyusingthegelcementtechnology:!Theslurryanddrillingfluidweremixedinacertainproportiontoformgelslurrytoreducetheslurrydensityandsettingstrengthsoastoimprovethepluggingsuccessrate.∀Thethickeningtimeofgelslurrywasadjustedbyaddingcalciumchlorideinthedrillingfluid.#Theformulationofgelslurrywasadjustedbeforeconstruction.&Thebentoniteslurrywasusedwithahighconcentrationtoreducethedilutionofsealingslurryduetotheformationwater.∋Atleast2/3gelslurrywasinjectedintothethiefzonetoplugtheopenholecompletely.(Thegelslurryformulawasachievedbyregulatingthedisplacementoftwocementtrucksoperatedtogetherinconstruction.+Afterthecompletionofoperation,thetimeofwaitingoncementwasreasonablyshortened,thestrengthofcementplugwasundercontrol,thus,newholeswereavoidedindrillingthroughthecementplug.ThesemeasureshavebeensuccessfullyappliedinthewellPu0052,providinganewwayforlostcirculationcontrolofwellsdrilledintheshallowacturekarstcarbonatereservoirsoftheeasternSichuanBasin.Keywords:EasternSichuanBasin,carbonaterock,plugging,gelslurry,lowdensity,lowstrengthDOI:10.3787/j.issn.10000976.2010.05.021ZhuoYun,engineer,wasbornin1974.HegraduatedfromDaqingPetroleumInstitutein1997,andisengagedinserviceofdrillingtechnology.Add:No.300,JiangbeiDistrict,Chongqing400021,P.R.ChinaTel:[phone]Mobile:[phone]Email:[e-mail]nsiveadvancedgeologicalforecastinthetunnelengineeringfortheLineTwoofWestEastNaturalGasTransmissionProjectHuWenjun1,Wangjin1,HuDaohua1,MaHong2(1.SouthwestSubCompany,ChinaPetroleumGroupEngineeringDesignCo.,Ltd.,Chengdu,Sichuan610017,China;2.ChinaUniversityofPetroleum,EastChina,Qingdao,Shandong266555,China)NATUR.GASIND.VOLUME30,ISSUE5,pp.8791,5/25/2010.(ISSN10000976;InChinese)Abstract:ThetotallengthoftheLineTwoofWestEastNaturalGasTransmissionProjectis8000kmstartingwestfromHorgos(westofXinjiang),easttoShanghai,southtoGuangzhouandHongKong.Itisamileston