超高温钻井液技术研究

会计学1超高温钻井液技术研究我国未探明石油储量约85×108t，其中石油73%、天然气52%埋藏在深层，迫切需要进行深部油气资源勘探开发

UnexploredreservesofouroilinChinaisabout85×108t,Oilaccountsfor73percent,naturalgas52percentburiedinthedeeplayertobeexploredurgently.大庆、南海、吉林、新疆、塔里木、大港等油田都在实施超深井钻井工程，许多井的井底温度均在200～250℃之间

Deepandultra-deepwelldrillingprojectsareundertheinDaqing,Nanhai,Jilinprovince,XinjiangAutonomousregion,TarimandDagangoilfields.Thetemperaturesofmostofwellsarebetween200to250℃.一、市场需求MarketingDemand第1页/共51页我国目前用于深井、超深井钻井液抗温能力一般在180℃以下

CurrentlythetemperatureofdeepandultradeepwellsinChinaisbelow180℃.

抗温在200～240℃水基钻井液，国内目前还是空白

Studyonthewaterbaseddrillingfluidisstillblankundertheresistingtemperaturesbetween200℃and240℃

抗高温钻井液技术已成为制约深部地层石油天然气资源勘探、开发的技术瓶颈

Drillingfluidtechnologyofresistinghightemperaturehasbecomeatechnologybottleneckforthe

deeplayeroilandnaturalgasresourceexplorationanddevelopment.

研制出一套适合我国国情、抗温达(220—240℃)钻井液技术，对满足我国深井超深井勘探开发的需要，具有重要意义。

ItisgreatlysignificantforChinatodevelopthedrillingfluidtechnologyresistingthetemperaturebetween220℃and240℃tomeetthedemandsofdeepandultradeepwellsexplorationanddevelopment.

一、市场需求MarketingDemand第2页/共51页二、国内外技术现状—国外

Overseasanddomestictechnologycurrentsituation-Overseas降粘剂CPD、SSMA

ThinnersuchasCPDandSSMA

降滤失剂Polydrill、COP—1、COP—2、VSVA

FiltrationReducersuchasPolydrill,COP—1,COP—2andVSVA

以上钻井液处理剂抗温能力都在200℃以上，抗盐抗钙性能好，现场

用，最高井底温度达到260℃

TheThinnerwhichmentionedabovewithcompatibilityofcalciumandheat(above200℃)andsalinitytolerancecanbeusedonthespot,andthehighesttemperatureinthewellcanreachto260℃.处理剂

DrillingFluidAdditives

第3页/共51页Magcobor公司的Durathermsystem、Baroid公司的Polynox体系、milpark公司的PYRO-DRILL体系、I.D.F的PolyTempy体系

DurathermSystemofMagcobar,PolynoxSystemofBaroid,Pyro-DrillsystemofMilpark,andPolyTempysystemofI.D.F.

特点：①由无机盐Ca(OH)2或KCL和有机聚合物包被剂及高温稳定剂组成；②热稳定性能好，抗温达200℃以上,抗盐抗钙能力强；③对环境污染小。

Features:①

CombinedbytheCa(OH)2orKCL,organicpolymercoaterandhightemperatureresistantstabilizer②heatstability,hightemperaturetoleranceabove200℃,strongsalinitytolerance③Lessenvironmentalhazard钻井液体系DrillingFluidSystems二、国内外技术现状—国外

Overseasanddomestictechnologycurrentsituation-Overseas第4页/共51页

20世纪70年代：研究开发了一系列磺化类抗高温处理剂，随后开发出磺化木质素、磺甲基酚醛树脂和一些特种树脂；90年代以后，聚物的问世和国产化，相继开发出多种耐温抗盐的降滤失剂和稀释剂

Inthe1970’sof20thcentury,theresearchersdevelopedaserialsofsulfonatedadditivesinhightemperature,followedbythedevelopmentoflignosulfonate,sulfomethyl-phenolicresinandsomespecializedresins.Afterthe1990’s,variousfiltrationreducersandthinnercameintodevelopmentonebyoneduetothecomingoutofthepolymerandintroductiontothedomestic.二、国内外技术现状—国内Overseasanddomestictechnologycurrentsituation-Domestic第5页/共51页抗高温降滤失剂SMC、SMP-1、SMP-2SPNH、SLSP、SHR、SPX、SCUR、G-SPNH、AMPS共聚物、CHSP－1、CAP、SFJ-1等

FiltrationreducerresistinghightemperaturesuchasSMC,SMP-1,SMP-2,SPNH,SLSP,SHR,SPX,SCUR,G-SPNH,AMPSCopolymer,CHSP－1,CAPandSFJ-1etc.抗高温稀释剂SMT、SMC、MGBM-1、XG-1、SSHMA、PNH、AMPS共聚物、THIN、SF260等HightemperatureresistantthinnerSMT,SMC,MGBM-1,

XG-1,SSHMA,PNH,AMPSCopolymer,

THINand

SF260etc.二、国内外技术现状—国内Overseasanddomestictechnologycurrentsituation-Domestic特点:品种齐全;但抗温能力180℃以下Features:abundanttypesbutonlyworkunderthetemperaturebelow180℃第6页/共51页三、研究思路StudyApproach抗高温钻井液研究思路研制抗温能力高的处理剂Researchandproducetheadditivesresistinghightemperature提高单个处理剂抗温能力Increasetheabilityofheattoleranceofsingleadditive提高整个体系的抗温性能

Improvethetemperatureresistingperformanceofthewholesystem利用处理剂间协同增效研制高温保护剂优选其他处理剂Developthehigh-temperatureprotectiveadditiveduethesynergisticeffectsamongadditives.优点：在较低温度下行之有效，解决了国内外大量的深井钻井液的技术难题。

Advantages:Effectiveunderlowtemperature.Solvethetechnical

difficultiesindeepwelldrilling.缺点：温度升高，性能变化大处理频繁，处理剂用量增多，成本增高。甚至无法达到所需钻井液性能要求。Disadvantages:Constantperformancechangescausedthecostincrease.Someevencannotreachtherequirementsofthedrillingfluid.第7页/共51页三、研究思路StudyApproach优点：成本低、成熟技术新应用、风险小Advantages:Lowcostandrisk,sophisticatedtechnologyusedinanewway.

缺点：高温保护剂研制困难Disadvantages:Difficulttoresearchanddevelopthehigh-temperatureprotectiveadditive.第8页/共51页高温水基钻井液作用原理高温对钻井液中粘土及钻井液性能影响Influenceontheclayinthedrillingfluid高温影响处理剂与粘土之间的相互作用theinteractionbetweenhigh

temperature

additiveandclay高温对处理剂作用效能影响Hightemperatureeffectontheadditive粘土高温分散ClayDispersioninhightemperature

粘土高温钝化ClayPassivation影响钻井液流变性且不可恢复AffectDrillingFluid

Rheologyandunrecoverable

淡水、分散钻井液粘土切力升高，

高矿化度钻井液粘度切力降低。

Shearingforceoffreshwaterand

disperseddrillingfluidincreases

anddecreasesofhighmineralizationdrillingfluid.钻井液粘土含量高，出现高温固化，反之出现高温减稠。ClaycontentincreasesOfdrillingfluidcomingoutwithHTsolidification,Onthecontrary,HTthinning.处理剂高温降解AdditiveHTdegradation

处理剂高温交联AdditiveHTCrossLinking处理剂在粘土表面高温解吸附Additivesaffiliatedtotheclaysurfaceunderthehightemperature高温去水化hightemperaturedehydration

1、钻井液抗高温机理研究

MechanismStudyofthedrillingfluidhightemperature(HT)tolerance四、技术研究TechnologyStudy粘土高温聚结粘土高温聚结ClayCoagulation

inHT第9页/共51页温度是影响钻井液性能的主要因素，并且温度越高，钻井液性能发生变化的程度越大，主要表现在以下几个方面：Temperatureisthemajorfactortoaffectthedrillingfluidpeformance.高温对深井水基钻井液性能的影响高温恶化钻井液性能Worsenthedrillingfluidperformance高温影响钻井液的热稳定性Affectthermalstabilityofdrillingfluid高温降低钻井液的pH值DecreasethePHvalueofthedrillingfluid高温增加处理剂的耗量Increasetheadditivesusingamount钻井液滤失量增大，粘度出现降低、升高或先降低后升高等多种现象。Drillingfluidfiltrationincreasesandviscositydecreasesorincreasesordecreaseatthebeginningand

thenincrease钻井液流变性发生变化(出现高温增稠、高温减稠或高温固化等情况)；钻井液滤失造壁性变差。

Rheologychangeswithbecomingthinner,thickerorsoli.1、钻井液抗高温机理研究MechanismStudyofthedrillingfluidhightemperaturetolerance四、技术研究TechnologyStudy第10页/共51页2、抗高温钻井液处理剂研制、评价与优选

Research,Evaluation&OptimizationonDrillingFluidAdditives基本要求BasicRequirement分子特征MolecularCharacteristics

热稳定性强，高温降解不明显，交联易控制

Heatstability,invisiblehightemperaturedegradationand

easilycontrolledcrosslinking.主链或亲水基与主链连接尽量采用C—C、C—N、C—S键而避免—O—键

TrytouseC—C,C—N,andC—S

boundsinMainchainorhydrophilicgroupandavoids—O—bound.对粘土表面有较强的吸附力，且受高温影响小

Strongadsorptiontotheclaysurfaceandrarelyaffectedbyhightemperature螯合吸附，氢键吸附chelationadsorptionandhydrogenbondadsorption抗高温保护剂研制与评价ResearchandEvaluation四、技术研究TechnologyStudy第11页/共51页2、抗高温钻井液处理剂研制、评价与优选基本要求BasicRequirement分子特征MolecularCharacteristics

亲水性强，受高温去水化作用较小Agreatdegreeofhydrophilcityandlowdehydrationinhightemperature选用离子基团如羧基、磺酸基作为亲水基Useionicgroup

suchassulfonicacidgroupcarboxylashydrophilicgroup

在pH较低时也能发挥作用

EffectiveevenunderthelowerPHvalue采用强酸性基团如—SO3Usetheultraacidgroupsuchas—SO3-不能引起钻井液严重增稠Forbidtocausetheseriousthickeningofdrillingfluid分子量不要过高（据实践经验最好不超过50万）molecularweight

notbove500,000basedonactualexperience.抗高温保护剂研制与评价四、技术研究结论:选取丙烯酰胺(AM)，2-丙烯酰胺基-2-甲基丙磺酸(AMPS)，苯乙烯磺酸钠（SSS）作为单体合成三元共聚物作为高温钻井液保护剂Conclusion:Chooseacrylamide(AM),2-acrylamide2-methylpropanesulfonicacid(AMPS),sodiumstyrenesulfonate(SSS)astheunittocombineintoterpolymerwhichcanbeusedasdrillingfluidprotectionagent.第12页/共51页GBH反应时间对转化率的影响GBHrespondingtimeviatransformationrate转化率在10~30min内迅速增加，50min达到95%，1h后反应接近完全

Thetransformationratedincreasesrapidlybetween10to30minutesandreachesthecompletionafteranhour.

2、抗高温钻井液处理剂研制、评价与优选Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高温保护剂研制与评价—合成

ResearchandEvaluationoftheprotectionagent-synthesis

四、技术研究TechnologyStudy第13页/共51页图

特性粘数随引发剂加量的变化关系2、抗高温钻井液处理剂研制、评价与优选Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高温保护剂研制与评价—合成ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation-synthesis

四、技术研究TechnologyStudy第14页/共51页图GBH的热重曲线结论：GBH的热稳定性达到300℃以上Conclusion:HeatstabilityofGBHcanreachabove300℃2、抗高温钻井液处理剂研制、评价与优选Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance

抗高温保护剂研制与评价—评价ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技术研究TechnologyStudy第15页/共51页2、抗高温钻井液处理剂研制、评价与优选Research,Evaluation

andOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高温保护剂研制与评价—评价ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技术研究TechnologyStudy第16页/共51页结果表明，配方中加入1%GBH就可显著地提高其褐煤树脂SPNH等降滤失剂的抗温性能，有效地降低钻井液的HTHP滤失量且流变性能基本保持不变，GBH在钻井液中具有协同增效作用，能大幅度地提高整个钻井液体系的抗温能力。Theresultsshowthatadding1%ofGBHincreasedthetemperaturetoleranceabilityofsuchfiltrationreducerasSPNHdramatically,effectivelylowertheHTHPfiltrationofdrillingfluidandatthesametimekepttherheologyunchanged.ThesynergisticeffectofGBHindrillingfluidcanincreasethetemperatureresistingabilityofthewholedrillingfluidsystemtoagreatextent.

2、抗高温钻井液处理剂研制、评价与优选Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高温保护剂研制与评价—评价ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技术研究TechnologyStudy配方1#：4%基浆+2%SF+8%SPNH；

2#：4%基浆+2%SF+8%SPNH+1.0%GBHComposition

1#:4%slurry,2%SFand8%SPNH.

2#:4%ofSlurry,2%ofSF,8%ofSPNHand1%ofGBH第17页/共51页在粘土表面上吸附

AdsorptiononClaySurface增大粘土表面负电位IncreasetheclaysurfacenegativeElectricitypotential

GBH分子结构中含有对粘土吸附作用强的酰胺基－CONH2和羟基－OH，并且GBH在粘土表面的吸附量高于SMP-1在粘土表面的吸附量。GBHstructureinclueds－CONH2and－OHwithstrongadsorptionAblity.GBHadsorptionperformanceishigherThanSMP-1intheclaysurface.AMPS单体含有负电性极高的－SO3-，增大了泥饼和粘土颗粒上的负电荷密度AMPSunitcontainshighnegativeelectricity

－SO3-andincreasethenegativeelectricitydensityofmudcakeandclayparticles.磺酸基水化能力强，可在很大程度上增大粘土颗粒的水化膜厚度，使泥浆中粘土颗粒高温前后的聚结稳定性增强，从而降低钻井液的滤失量。Althoughsulfonicacidgrouphasstronghydrationability,ingreatextent,itcanwidenhydrationmembraneofclayparticlestoenh-ancecoagulationstabilitytolowerdrillingfluidfiltration.GBH增大粘土表面水化膜厚度WidentheclaysurfaceHydrationmembrane2、抗高温钻井液处理剂研制、评价与优选Research,Evaluation

andOptimization

onDrillingFluidAdditiveswithHighTemperatureTolerance抗高温保护剂研制与评价—作用机理ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-FunctionMechanism四、技术研究TechnologyStudy第18页/共51页

根据深井超深井钻井液存在的问题，我们开展了超高温钻井液技术研究和评价工作，筛选出高温降滤失剂、高温防塌封堵剂和高温流型调节剂，优选出超高温(240℃)钻井液配方Accordingtothedifficultiesofdeepandultradeepwellsofthedrillingfluid,wehavecarriedoutthestudyandevaluationonthedrillingfluidtechundertheultratemperatureenvironmentandselectedouttheoptimizeddrillingfluidcompositionfromhigh-temperaturefiltrationreducer,formationstabilizer/sealant,anticavingandfluidregulator.四、技术研究3、抗高温（240℃）钻井液技术研究HighTemperatureToleranceDrillingFluidStudy(above240℃）

第19页/共51页

膨润土2~4％＋高温保护剂GBH1%＋高温降滤失剂GJL－Ⅰ4％+高温降滤失剂GJL－Ⅱ6％＋高温防塌封堵剂GFD－Ⅰ4％＋(高温防塌封堵剂GFD－Ⅱ3％＋高温流型调节剂GLJ2％＋重晶石)

2-4%ofBentonite,1%ofhightemperatureprotectionagent,4%offiltrationreducerGJL-Ⅰplus6%GJL－Ⅱ,4%ofanti-cavingagentandsealantGFD－Ⅰplus3%GFD－Ⅱ3,and2%offluidregulateagentGLJplusbarite.四、技术研究TechnologyStudy3、抗高温（240℃）钻井液技术研究HighTemperatureToleranceDrillingFluidStudy

(240℃)基本配方BasicComposition(240℃)第20页/共51页高温保护剂GBHHightemperatureprotectiveagentGBHGBH是三元共聚物，具有协同增效的作用，通过提高其他处理剂的抗温能力而提高钻井液体系的整体抗温性能30-50℃；GBHisaterpolymerwithsynergisticeffect,whichcanincreasethetemperatureresistanceperformanceofdrillingfluidsystemforanother30-50℃byimprovingthetemperatureresistanceabilityofotheradditives.高温降滤失剂GJL－Ⅰ、GJL－ⅡHighTemperatureFiltrationReducerGJL－ⅠandGJL－Ⅱ

GJL－Ⅰ、GJL－Ⅱ均为磺化树脂型改性降滤失剂

GJL－ⅠandGJL－Ⅱareallsulfonationresinmodifiedfiltrationreducers.

高温防塌封堵剂GFD－Ⅰ、GFD－Ⅱ

Anti-cavingagentandsealantGFD－ⅠandGFD－Ⅱ

GFD－Ⅰ为改性高软化点天然植物沥青衍生物，具有良好的抑制页岩水化膨胀的作用，封堵井壁地层裂缝，降低HTHP滤失量和改善泥饼质量

处理剂介绍AdditiveIntroduction四、技术研究第21页/共51页GFD－Ⅰismodifiedasphaltderivativesofsoftenednaturalplantswithgoodinhibitivebehaviorforhydrationofshale,sealingfracturedformation,

loweringHTHP

filtrationandimprovementforthequalityofmudcake.

GFD－Ⅱ为有机硅树脂，高温条件下具有良好的抑制性和封堵性，防止井壁坍塌、降低HTHP滤失量

GFD－Ⅱisakindoforganicsiliconresinwithgoodinhibitivebehaviorandsealingabilityunderhightemperature,preventingwellborecollapseanddecreasingHTHPfiltration.高温流型调节剂GLJHighTemperatureFluidRegulatingAgentGLJ

硅氟高温流型调节剂，在240℃超高温情况下，调节钻井液流变性，降低钻井液的粘度、切力

Siliconandfluorinehightemperaturefluidagentcanregulaterheologyofdrillingfluidandlowertheviscosityandshearforceundertheultratemperature240℃处理剂介绍AdditiveIntroduction四、技术研究第22页/共51页抗温性能评价StudyonTemperatureResistanceAbility温度T℃老化情况Aging（16h）AVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值Value25热滚前BeforeHotAging(HA)37.5316.51.5/70.569150热滚后afterHA312651.5/2.50.65.99180热滚后beforeHA382991.5/50.87.89200热滚后AfterHA362882/40.55.09220热滚后AfterHA38.5308.51.5/727.89240热滚后AfterHA39.52712.53/93.8159

密度为1.4g/cm3钻井液在不同温度下老化后性能

DrillingFluidwithdensity1.4g/cm3Performanceunderdifferenttemperatureafterhotaging四、技术研究TechnologyStudy第23页/共51页抗温性能评价StudyonTemperatureResistanceAbility

密度为1.4g/cm3钻井液在不同温度下老化后性能

DrillingFluidwithdensity1.4g/cm3Performanceunderdifferenttemperatureafteraging老化后流变性好，AV和PV随着老化温度升高而缓慢增加，一般不超过老化前数值

Rheologybecomesbetterafteraging.AVandPVincreaseslowlywiththetemperatureincreasingbutnormallywillnotexceedthevaluebeforeaging.YP随老化温度增加而增大，动塑比增大，携岩能力增强

YPincreaseswiththetemperatureincreasing,ratioofdynamicshearforceandcuttingscarryingcapacityincreases.

老化后，pH值稳定；HTHPFL能满足施工要求

Afteraging,PHvalueisstableandHTHPFLcanmeettheoperationrequirements.

四、技术研究TechnologyStudy第24页/共51页抗温性能评价StudyonTemperatureResistanceAbility不同密度钻井液在240℃温度下老化后性能DrillingFluidperformancewithdifferentdensityafteragingunder240℃密度Dg/cm3老化情况Aging（16h）AVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值(V)1.03热滚前Before241861.5/42.69热滚后After181191.5/5.54.61991.10热滚前Before31.524.572/52.09热滚后After292094/84.51591.15热滚前Before33.5249.52/61.89热滚后After31.5238.54.5/84.21591.40热滚前After37.5316.51.5/70.59热滚后After39.52712.53/93.81491.60热滚前Before4131102/80.49热滚后After4229134/9.53.2139四、技术研究TechnologyStudy第25页/共51页抗温性能评价StudyonTemperatureResistanceAbility不同密度钻井液在240℃温度下老化后性能DrillingFluidwithdifferentdensityperformanceafteragingunder240℃1)AV、YP和PV均随着密度增加而增加，没有超过热滚前数值1)AV,YPandPVincreasewiththedensitygoingupwithoutexceedingthevaluebeforehotaging.

2)HTHPFL随着密度增加而减小

2)HTHPFLdecreaseswiththedensitygoingup.四、技术研究TechnologyStudy第26页/共51页密度1.15g/cm3的钻井液在240℃下连续热滚112h

Continuallyhotrollingfor112hoursunderthe240℃.Density1.15gpercubiccentimeter

随着热滚时间的增加，表观粘度、塑性粘度、动切力、静切力都缓慢下降，变化幅度很小，钻井液没有出现稠化、胶凝等现象。说明抗高温钻井液具有优良的长时间抗温稳定性。Withhotaginglasts,apparentviscosity,plasticviscosity,yieldpoint,andstaticshearforcealldropslowly.Drillingfluidhasnotthickenorcomeoutwithgel.Thisexplainsthelong-timeheatstabilityofthehightemperaturedrillingfluid.

热稳定性能评价StudyontheHeatStability

四、技术研究TechnologyStudy第27页/共51页钻屑粉加量（ＤＣ）Ｄ密度

g/cm3老化情况（16h）AgingAVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值0％1.03热滚后(PostHotAging)141132/52.515.895％1.03热滚后12.593.51/2.5315.6910％1.03热滚后14.5104.51/35.216.8915％1.03热滚后17.5134.52/7614.890％1.4热滚后22.5157.53/83.213.895％1.4热滚后221573/97.217.2910％1.4热滚后231942/97.618915％1.4热滚后3122115/174.414.49水基钻井液的抗钻屑污染性能DrillingCuttings(DC)contamination

具有较强的抗钻屑污染能力，抗钻屑污染容限量达15%，老化后，钻井液流变性能与污染前相近，满足深井钻井工艺需要。Strongcontaminationresistanceabilitywithmaximum15%drillingcuttingscontent.Afteraging,rheologyisalmostsamewiththeonebeforepollutionandcanmeettherequirementofdeepwelldrilling.抗污染性能Anti-PollutionAbility

四、技术研究TechnologyStudy第28页/共51页抑制性能InhibitiveBehavior配方Composition回收率ReturnRate(％)清水FreshWater67.68复合离子钻井液MultifunctionalIonic

84.32抗高温水基钻井液waterbaseddrillingfluidwithhightemperaturetolerance87.91钻井液抑制性能实验结果（240℃滚动16h）

TestResultunder240℃,rolling16hours在240℃滚动条件下，钻井液的回收率比较高。说明钻井液具有抑制页岩水化膨胀能力较强。Undertheconditionof240℃,drillingfluidrecoveryisfairlyhigh,whichmeansthedrillingfluidcaninhibitthehydrationofshale.四、技术研究TechnologyStudy第29页/共51页钻井液润滑性能LubricationPropertiesofDrillingFluid密度Densityg/cm3摩阻系数FricationFactor热滚前

PreHotAging热滚后PostHotAging1.030.0400.0451.350.0430.049

热滚前后钻井液的润滑系数变化幅度不大，润滑系数都小于0.06，小于普通水基钻井液的摩阻系数0.2～0.35的范围。钻井液具有良好的润滑性能

Thechangesoflubricationofthedrillingfluidbeforehotagingandafterhotaging.Thelubricationisbelow0.06,evenlowerthanthenormalbasedwaterdrillingfluidfricationinrangeof0.2and0.35.四、技术研究TechnologyStudy第30页/共51页动滤失量与时间关系RelationshipbetweenDynamicFiltrationandtime渗透率恢复值ReturnPermeability

钻井液储层保护效果评价EffectivenessEvaluationofReservoirProtectionofDrillingFluid钻井液的具有良好的封堵性能，2h的动态滤失量仅为2.8ml。污染后岩心的渗透率恢复值达到84.6％。表明抗高温钻井液具有良好的储层保护性能

Drillingfluidhasgoodsealingandbridgingability.Thedynamicfiltrationwithin2hoursisonly2.8ml.Aftercontamination,thereturnpermeabilityrateofthecorereaches84.6percent.Thisshowsreservoirprotectionabilityofdrillingfluid.四、技术研究TechnologyStudy第31页/共51页水基钻井液压力一定，不同温度下流变曲线

RheologyCurveunderthesametemperatureanddifferentpressure

温度由30℃上升到60℃时，粘度AV都迅速下降，再随着温度的继续升高，表观粘度的下降变得缓慢，钻井液当温度达到210℃时，粘度将会随着温度升高有小幅上升的趋势。Whentemperaturereachesfrom30℃to60℃,theviscositywilldroprapidly.Withthecontinuingincreaseofthetemperature,theviscosityslowsdownthedropstill210℃,theviscosityexperiencestheslightincreasewiththetemperatureraising.抗高温（180-220℃）钻井液流变性研究HighTemperatureTolerance(180-220℃)RheologyStudyofDrillingFluid

四、技术研究TechnologyStudy第32页/共51页钻井液温度一定，不同压力下流变曲线

RheologyCurveunderthesametemperatureanddifferentpressure

结论：压力对水基钻井液流变性能的影响很小Conclusion:Pressurehasrarelyinfluencedthebasedwaterdrillingfluidrheology四、技术研究TechnologyStudy抗高温（180-220℃）钻井液流变性研究

HighTemperatureTolerance(180-220℃）RheologyStudyofDrillingFluid第33页/共51页莫深1井—概况Well

Moshen-1GeneralIntroduction

莫深1井位于准噶尔盆地中央坳陷莫索湾凸起背斜，是为了了解盆地深层石炭系及其以上地层、构造及含油气性而部署的一口超深预探井。该井设计井深7380m，实际完钻井深7500m。

Well

Moshen-1,whichislocatedinthehinterlandanticlinalfaultoftheJunggarBasinisaultradeepprospectedwellinordertoknowcarboniferoussystem,thelayersandoilgascharacteristics.Itiswithadesigneddepthof7,380m,andwascompletedatadepthof7,500m.

五、现场应用On-SiteApplication第34页/共51页莫深1井—概况WellMoshen-1

GeneralIntroduction

根据该井压力预测资料，井深5630m左右地层压力系数最大值达2.12；井深6371m左右压力系数为2.08。Theprospectedofwellpressureshowthatthehighestvaluerangeoftheformationis2.13inthedepthof5630,thepressurereaches2.08inthedepthof6,371m.根据邻井试油测试温度外推，得出井底温度为204℃。Basedontheoiltestingheldinthenearbywell,wehavedrawnaconclusionaboutthebottomwelltemperaturewith204℃五、现场应用On-SiteApplication第35页/共51页莫深1井—技术难题WellMoshen-1----TechnicalDifficulties井下温度高，抗温材料难以优选

Hightemperatureinthedownhole.Hardtochoosetheright

heat-resistantmaterials

井底温度高，抗温超过200℃的处理剂很少。

Additiveswhichcantakethetemperatureabout200℃ishardlyseenduetheultrahightemperatureinthedownhole.

地层压力系数高，高温高压下钻井液难调控

Difficulttocontrolthedrillingfluidpropertiesunderthehighpressureoftheformation

高温高压情况存在同一井段，钻井液流变性和高温稳定性难以控制。

Hightemperatureandpressureexistedinthesameformation,whichmakesitveryhardtocontroltherheologicalpropertiesandhightemperaturestabilityofthedrillingfluid.

五、现场应用On-SiteApplication第36页/共51页莫深1井—技术难题WellMoshen-1-TechnicalDifficulties存在井壁稳定问题BoreholeStabilityProblem

多个井段存在复杂的地质情况，维持井壁稳定的难度较大，要求钻井液在高温高压条件下有较强的抑制性和封堵性。

Afewwellsectionshaveexperiencedthecomplicatedgeophysicalconditions.Tomaintaintheboreholestabilityhastorequireagreaterinhibitiveandsealingabilitiesforthedrillingfluidunderahigh-temperaturecircumstance.

钻井液性能对地层污染敏感性强StrongSensibilityfortheformationcontaminationfromdrillingfluid三开后的钻井液密度大于2.0g/cm3，固相含量高，钻井液性能对外来物质的污染敏感性很强，要求钻井液要有较好的抗污染能力。

Drillingfluiddensityismorethan2.0g/cm3centimetersinthethirdopensectionwithhighsolidconcentration,easilypolluted.Thisrequiresthedrillingfluidwithabettercontaminationresistantability.五、现场应用On-SiteApplication第37页/共51页莫深1井—室内评价WellMoshen-1

EvaluationInside基本性能及抗温性能评价实验数据表

LabStatisticsforbasicfeaturesandheat-toleranceperformance实验条件Underthelabconditions

ρg/cm3FVsFL/KmL/mmGelPa/PapHAVmPa·sPVmPa·sYPPaHTHPmL150℃/16h2.30841.8/1.07/171079.5709.510/150℃150℃/48h2.30731.9/1.04.5/1297868109.3/150℃150℃/72h2.30742.3/1.07.5/1697969.59.59/150℃180℃/16h2.30951.8/1.07180℃180℃/48h2.30901.9/2.05/2298475910.6/180℃180℃/72h2.30962.1/2.06.5/25994821210.5/180℃220℃/16h2.30922.2/2.04/121075.5705.513/220℃220℃/48h2.301041.9/1.55/13.599486811.8/220℃220℃/72h2.30872.0/1.58/22989781112.4/220℃五、现场应用On-SiteApplication第38页/共51页莫深1井—室内评价WellMoshen-1-EvaluationInside基本性能及抗温性能评价实验数据表

LabStatisticsforbasicfeaturesandheat-toleranceperformance抗高温高密度钻井液体系在密度达到2.30g/cm3，经150℃、180℃、220℃72h老化后后钻井液的流变性、滤失造壁性较好，高温高压滤失量较低，表明钻井液体系具有较好的抗温性。

Withdensity2.30g/cm,72hoursagingunderthetemperatureof150℃,180℃,and220℃,therheologicalproperty,filtrationwellborebuildingpropertyaregoodandfiltrationislowunderthehightemperatureandpressurewhichmeansthisdrillingfluidhasenhancedheattolerance.

五、现场应用On-SiteApplication第39页/共51页莫深1井WellMoshen-1井段m

WellSection密度g/cm3

DensityFVsAPIFLmLHTHPFLmLAVmPa.sPVmPa.sYPPa静切力

StaticShearForce(SF)

初切InitialSF终切FinalSF转化1.95721.89.2777072.510.06406-64551.95-1.9475-642.4-2.09.6-9.482.5-5473-489.5-7.02-410.5-11-65001.94-1.9375-601.9-2.29.2-9.665-5453-4712-71.5-2.011-15-65601.92-1.9068-611.8-2.18.4-9.260-5349-4512.5-10.51.5-2.011-14.5-67101.89-1.8768-601.6-1.88.4-8.857.5-4845-3814.4-101.5-2.09-12-68291.87-1.8562-601.6-1.88.0-8.641-39.540-3210-71.5-2.09.0-12-69361.85-1.8362-601.8-2.08.2-8.643-39.537-3210-71.5-2.09-12-70251.83-1.8262-601.7-1.98.6-9.045.5-4236-339-71.5-2.08.0-10-71181.82-1.8062-601.7-2.08.8-9.243-3536-278-71.5-2.08.0-9.5-72091.9058-651.8-2.29.2-9.843-4934-438-131.5-3.08.0-10-73911.9558-781.8-2.58.8-9.843-6834-595-101.5-3.07-10-74601.9589-742.1-1.89.6-9.078-5771-506.5-121.5-3.07-8.5-74851.9574-641.8-1.68.0-7.676-7063-619-122.5-3.08-8.5-75001.95721.66.881.5729.537.5四开钻井液性能FourLargeOpenSectionDrillingFluidProperty五、现场应用On-SiteApplication第40页/共51页莫深1井WellMoshen-1现场应用效果表明：On-siteusingcameoutwiththebelowresults.

施工过程中井壁稳定、井眼畅通，深部裸眼井段经四次地层出水浸泡后，井眼仍能保持畅通。

Duringdevelopment,theholewasstableevenafterformationwaterwhichinthedeepbarefootintervalhademergedforfourtimes.

在井深6901.5m处理断钻具事故中，落井钻具在井下静止73h，未发生粘附或沉砂卡钻，说明钻井液的抑制性、失水造壁性、润滑性、沉降稳定性和高温稳定性优良。Inthefishingaccidenthappenedinthedepthof6,901.5meters,thefishhasbeenstillfor73hours,andthereisnoadherenceandpipestuck,whichdisplayedtheexcellentperformanceofthedrillingfluidinthe五、现场应用On-SiteApplication第41页/共51页莫深1井

WellMoshen-1inhibitiveability,wellbuildingproperty,lubrication,subsidingstabilityandhigh-temperaturestability.

体系流变性好，粘度与切力较低（漏斗粘度一直保持在60－70s范围），为深部井段保持大排量、高泵压（30-35MPa）钻进提高技术保证，创国内陆上油田连续钻进泵压最高水平。Goodrheologyofthesystemandlowviscosityandshearingforce,funnelviscositybetween60to70sallthewayhaveprovidedatechnologyguaranteeforthedrillingunderhighpumpingpressurebetween30to35MPaandflowrate.Thiscreatedthehighestlevelofcontinuousdrillingpumpingpressureintheinlandoilfields五、现场应用On-SiteApplication第42页/共51页长深5井是松辽盆地南部的一口风险探井，是吉林油田最深的一口井，设计井深5400米，实际完钻井深5321米。该井最大技术难题为井底温度高，预计井底温度达到220℃左右，本井下部井段（4357-5321）使用抗高温水基钻井液，密度为1.25-1.28g/cm3，共进尺964m，井底温度207℃,钻井95天,钻井液性能稳定。吉林油田长深5井Changshen5WellinJilinOilfield

五、现场应用On-SiteApplicationLocatedinsouthofSongliaoBasin,wellChangshen-5isthedeepestwellinJilinOilfield,whichiswith5,400metersdesignedwelldepth,5321metersincompletionofthewell.Thetechnicaldifficultiesforthiswellishightemperature,asestimatedabout220℃ofdownhole.Thesectionbetween4,357metersand5,321metersareusedthewaterbasedrillingfluidw