超高溫鉆井液技術(shù)研究

會計學(xué)1超高溫鉆井液技術(shù)研究我國未探明石油儲量約85×108t，其中石油73%、天然氣52%埋藏在深層，迫切需要進(jìn)行深部油氣資源勘探開發(fā)

UnexploredreservesofouroilinChinaisabout85×108t,Oilaccountsfor73percent,naturalgas52percentburiedinthedeeplayertobeexploredurgently.大慶、南海、吉林、新疆、塔里木、大港等油田都在實施超深井鉆井工程，許多井的井底溫度均在200～250℃之間

Deepandultra-deepwelldrillingprojectsareundertheinDaqing,Nanhai,Jilinprovince,XinjiangAutonomousregion,TarimandDagangoilfields.Thetemperaturesofmostofwellsarebetween200to250℃.一、市場需求MarketingDemand第1頁/共51頁我國目前用于深井、超深井鉆井液抗溫能力一般在180℃以下

CurrentlythetemperatureofdeepandultradeepwellsinChinaisbelow180℃.

抗溫在200～240℃水基鉆井液，國內(nèi)目前還是空白

Studyonthewaterbaseddrillingfluidisstillblankundertheresistingtemperaturesbetween200℃and240℃

抗高溫鉆井液技術(shù)已成為制約深部地層石油天然氣資源勘探、開發(fā)的技術(shù)瓶頸

Drillingfluidtechnologyofresistinghightemperaturehasbecomeatechnologybottleneckforthe

deeplayeroilandnaturalgasresourceexplorationanddevelopment.

研制出一套適合我國國情、抗溫達(dá)(220—240℃)鉆井液技術(shù)，對滿足我國深井超深井勘探開發(fā)的需要，具有重要意義。

ItisgreatlysignificantforChinatodevelopthedrillingfluidtechnologyresistingthetemperaturebetween220℃and240℃tomeetthedemandsofdeepandultradeepwellsexplorationanddevelopment.

一、市場需求MarketingDemand第2頁/共51頁二、國內(nèi)外技術(shù)現(xiàn)狀—國外

Overseasanddomestictechnologycurrentsituation-Overseas降粘劑CPD、SSMA

ThinnersuchasCPDandSSMA

降濾失劑Polydrill、COP—1、COP—2、VSVA

FiltrationReducersuchasPolydrill,COP—1,COP—2andVSVA

以上鉆井液處理劑抗溫能力都在200℃以上，抗鹽抗鈣性能好，現(xiàn)場

用，最高井底溫度達(dá)到260℃

TheThinnerwhichmentionedabovewithcompatibilityofcalciumandheat(above200℃)andsalinitytolerancecanbeusedonthespot,andthehighesttemperatureinthewellcanreachto260℃.處理劑

DrillingFluidAdditives

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

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

特點：①由無機鹽Ca(OH)2或KCL和有機聚合物包被劑及高溫穩(wěn)定劑組成；②熱穩(wěn)定性能好，抗溫達(dá)200℃以上,抗鹽抗鈣能力強；③對環(huán)境污染小。

Features:①

CombinedbytheCa(OH)2orKCL,organicpolymercoaterandhightemperatureresistantstabilizer②heatstability,hightemperaturetoleranceabove200℃,strongsalinitytolerance③Lessenvironmentalhazard鉆井液體系DrillingFluidSystems二、國內(nèi)外技術(shù)現(xiàn)狀—國外

Overseasanddomestictechnologycurrentsituation-Overseas第4頁/共51頁

20世紀(jì)70年代：研究開發(fā)了一系列磺化類抗高溫處理劑，隨后開發(fā)出磺化木質(zhì)素、磺甲基酚醛樹脂和一些特種樹脂；90年代以后，聚物的問世和國產(chǎn)化，相繼開發(fā)出多種耐溫抗鹽的降濾失劑和稀釋劑

Inthe1970’sof20thcentury,theresearchersdevelopedaserialsofsulfonatedadditivesinhightemperature,followedbythedevelopmentoflignosulfonate,sulfomethyl-phenolicresinandsomespecializedresins.Afterthe1990’s,variousfiltrationreducersandthinnercameintodevelopmentonebyoneduetothecomingoutofthepolymerandintroductiontothedomestic.二、國內(nèi)外技術(shù)現(xiàn)狀—國內(nèi)Overseasanddomestictechnologycurrentsituation-Domestic第5頁/共51頁抗高溫降濾失劑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.抗高溫稀釋劑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、國內(nèi)外技術(shù)現(xiàn)狀—國內(nèi)Overseasanddomestictechnologycurrentsituation-Domestic特點:品種齊全;但抗溫能力180℃以下Features:abundanttypesbutonlyworkunderthetemperaturebelow180℃第6頁/共51頁三、研究思路StudyApproach抗高溫鉆井液研究思路研制抗溫能力高的處理劑Researchandproducetheadditivesresistinghightemperature提高單個處理劑抗溫能力Increasetheabilityofheattoleranceofsingleadditive提高整個體系的抗溫性能

Improvethetemperatureresistingperformanceofthewholesystem利用處理劑間協(xié)同增效研制高溫保護(hù)劑優(yōu)選其他處理劑Developthehigh-temperatureprotectiveadditiveduethesynergisticeffectsamongadditives.優(yōu)點：在較低溫度下行之有效，解決了國內(nèi)外大量的深井鉆井液的技術(shù)難題。

Advantages:Effectiveunderlowtemperature.Solvethetechnical

difficultiesindeepwelldrilling.缺點：溫度升高，性能變化大處理頻繁，處理劑用量增多，成本增高。甚至無法達(dá)到所需鉆井液性能要求。Disadvantages:Constantperformancechangescausedthecostincrease.Someevencannotreachtherequirementsofthedrillingfluid.第7頁/共51頁三、研究思路StudyApproach優(yōu)點：成本低、成熟技術(shù)新應(yīng)用、風(fēng)險小Advantages:Lowcostandrisk,sophisticatedtechnologyusedinanewway.

缺點：高溫保護(hù)劑研制困難Disadvantages:Difficulttoresearchanddevelopthehigh-temperatureprotectiveadditive.第8頁/共51頁高溫水基鉆井液作用原理高溫對鉆井液中粘土及鉆井液性能影響Influenceontheclayinthedrillingfluid高溫影響處理劑與粘土之間的相互作用theinteractionbetweenhigh

temperature

additiveandclay高溫對處理劑作用效能影響Hightemperatureeffectontheadditive粘土高溫分散ClayDispersioninhightemperature

粘土高溫鈍化ClayPassivation影響鉆井液流變性且不可恢復(fù)AffectDrillingFluid

Rheologyandunrecoverable

淡水、分散鉆井液粘土切力升高，

高礦化度鉆井液粘度切力降低。

Shearingforceoffreshwaterand

disperseddrillingfluidincreases

anddecreasesofhighmineralizationdrillingfluid.鉆井液粘土含量高，出現(xiàn)高溫固化，反之出現(xiàn)高溫減稠。ClaycontentincreasesOfdrillingfluidcomingoutwithHTsolidification,Onthecontrary,HTthinning.處理劑高溫降解AdditiveHTdegradation

處理劑高溫交聯(lián)AdditiveHTCrossLinking處理劑在粘土表面高溫解吸附Additivesaffiliatedtotheclaysurfaceunderthehightemperature高溫去水化hightemperaturedehydration

1、鉆井液抗高溫機理研究

MechanismStudyofthedrillingfluidhightemperature(HT)tolerance四、技術(shù)研究TechnologyStudy粘土高溫聚結(jié)粘土高溫聚結(jié)ClayCoagulation

inHT第9頁/共51頁溫度是影響鉆井液性能的主要因素，并且溫度越高，鉆井液性能發(fā)生變化的程度越大，主要表現(xiàn)在以下幾個方面：Temperatureisthemajorfactortoaffectthedrillingfluidpeformance.高溫對深井水基鉆井液性能的影響高溫惡化鉆井液性能Worsenthedrillingfluidperformance高溫影響鉆井液的熱穩(wěn)定性Affectthermalstabilityofdrillingfluid高溫降低鉆井液的pH值DecreasethePHvalueofthedrillingfluid高溫增加處理劑的耗量Increasetheadditivesusingamount鉆井液濾失量增大，粘度出現(xiàn)降低、升高或先降低后升高等多種現(xiàn)象。Drillingfluidfiltrationincreasesandviscositydecreasesorincreasesordecreaseatthebeginningand

thenincrease鉆井液流變性發(fā)生變化(出現(xiàn)高溫增稠、高溫減稠或高溫固化等情況)；鉆井液濾失造壁性變差。

Rheologychangeswithbecomingthinner,thickerorsoli.1、鉆井液抗高溫機理研究MechanismStudyofthedrillingfluidhightemperaturetolerance四、技術(shù)研究TechnologyStudy第10頁/共51頁2、抗高溫鉆井液處理劑研制、評價與優(yōu)選

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

熱穩(wěn)定性強，高溫降解不明顯，交聯(lián)易控制

Heatstability,invisiblehightemperaturedegradationand

easilycontrolledcrosslinking.主鏈或親水基與主鏈連接盡量采用C—C、C—N、C—S鍵而避免—O—鍵

TrytouseC—C,C—N,andC—S

boundsinMainchainorhydrophilicgroupandavoids—O—bound.對粘土表面有較強的吸附力，且受高溫影響小

Strongadsorptiontotheclaysurfaceandrarelyaffectedbyhightemperature螯合吸附，氫鍵吸附chelationadsorptionandhydrogenbondadsorption抗高溫保護(hù)劑研制與評價ResearchandEvaluation四、技術(shù)研究TechnologyStudy第11頁/共51頁2、抗高溫鉆井液處理劑研制、評價與優(yōu)選基本要求BasicRequirement分子特征MolecularCharacteristics

親水性強，受高溫去水化作用較小Agreatdegreeofhydrophilcityandlowdehydrationinhightemperature選用離子基團(tuán)如羧基、磺酸基作為親水基Useionicgroup

suchassulfonicacidgroupcarboxylashydrophilicgroup

在pH較低時也能發(fā)揮作用

EffectiveevenunderthelowerPHvalue采用強酸性基團(tuán)如—SO3Usetheultraacidgroupsuchas—SO3-不能引起鉆井液嚴(yán)重增稠Forbidtocausetheseriousthickeningofdrillingfluid分子量不要過高（據(jù)實踐經(jīng)驗最好不超過50萬）molecularweight

notbove500,000basedonactualexperience.抗高溫保護(hù)劑研制與評價四、技術(shù)研究結(jié)論:選取丙烯酰胺(AM)，2-丙烯酰胺基-2-甲基丙磺酸(AMPS)，苯乙烯磺酸鈉（SSS）作為單體合成三元共聚物作為高溫鉆井液保護(hù)劑Conclusion:Chooseacrylamide(AM),2-acrylamide2-methylpropanesulfonicacid(AMPS),sodiumstyrenesulfonate(SSS)astheunittocombineintoterpolymerwhichcanbeusedasdrillingfluidprotectionagent.第12頁/共51頁GBH反應(yīng)時間對轉(zhuǎn)化率的影響GBHrespondingtimeviatransformationrate轉(zhuǎn)化率在10~30min內(nèi)迅速增加，50min達(dá)到95%，1h后反應(yīng)接近完全

Thetransformationratedincreasesrapidlybetween10to30minutesandreachesthecompletionafteranhour.

2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高溫保護(hù)劑研制與評價—合成

ResearchandEvaluationoftheprotectionagent-synthesis

四、技術(shù)研究TechnologyStudy第13頁/共51頁圖

特性粘數(shù)隨引發(fā)劑加量的變化關(guān)系2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高溫保護(hù)劑研制與評價—合成ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation-synthesis

四、技術(shù)研究TechnologyStudy第14頁/共51頁圖GBH的熱重曲線結(jié)論：GBH的熱穩(wěn)定性達(dá)到300℃以上Conclusion:HeatstabilityofGBHcanreachabove300℃2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance

抗高溫保護(hù)劑研制與評價—評價ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技術(shù)研究TechnologyStudy第15頁/共51頁2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,Evaluation

andOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高溫保護(hù)劑研制與評價—評價ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技術(shù)研究TechnologyStudy第16頁/共51頁結(jié)果表明，配方中加入1%GBH就可顯著地提高其褐煤樹脂SPNH等降濾失劑的抗溫性能，有效地降低鉆井液的HTHP濾失量且流變性能基本保持不變，GBH在鉆井液中具有協(xié)同增效作用，能大幅度地提高整個鉆井液體系的抗溫能力。Theresultsshowthatadding1%ofGBHincreasedthetemperaturetoleranceabilityofsuchfiltrationreducerasSPNHdramatically,effectivelylowertheHTHPfiltrationofdrillingfluidandatthesametimekepttherheologyunchanged.ThesynergisticeffectofGBHindrillingfluidcanincreasethetemperatureresistingabilityofthewholedrillingfluidsystemtoagreatextent.

2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance抗高溫保護(hù)劑研制與評價—評價ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-Evaluation四、技術(shù)研究TechnologyStudy配方1#：4%基漿+2%SF+8%SPNH；

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

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

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

AdsorptiononClaySurface增大粘土表面負(fù)電位IncreasetheclaysurfacenegativeElectricitypotential

GBH分子結(jié)構(gòu)中含有對粘土吸附作用強的酰胺基－CONH2和羥基－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單體含有負(fù)電性極高的－SO3-，增大了泥餅和粘土顆粒上的負(fù)電荷密度AMPSunitcontainshighnegativeelectricity

－SO3-andincreasethenegativeelectricitydensityofmudcakeandclayparticles.磺酸基水化能力強，可在很大程度上增大粘土顆粒的水化膜厚度，使泥漿中粘土顆粒高溫前后的聚結(jié)穩(wěn)定性增強，從而降低鉆井液的濾失量。Althoughsulfonicacidgrouphasstronghydrationability,ingreatextent,itcanwidenhydrationmembraneofclayparticlestoenh-ancecoagulationstabilitytolowerdrillingfluidfiltration.GBH增大粘土表面水化膜厚度WidentheclaysurfaceHydrationmembrane2、抗高溫鉆井液處理劑研制、評價與優(yōu)選Research,Evaluation

andOptimization

onDrillingFluidAdditiveswithHighTemperatureTolerance抗高溫保護(hù)劑研制與評價—作用機理ResearchandEvaluationonProtectionAgentwithhightemperaturetolerance-FunctionMechanism四、技術(shù)研究TechnologyStudy第18頁/共51頁

根據(jù)深井超深井鉆井液存在的問題，我們開展了超高溫鉆井液技術(shù)研究和評價工作，篩選出高溫降濾失劑、高溫防塌封堵劑和高溫流型調(diào)節(jié)劑，優(yōu)選出超高溫(240℃)鉆井液配方Accordingtothedifficultiesofdeepandultradeepwellsofthedrillingfluid,wehavecarriedoutthestudyandevaluationonthedrillingfluidtechundertheultratemperatureenvironmentandselectedouttheoptimizeddrillingfluidcompositionfromhigh-temperaturefiltrationreducer,formationstabilizer/sealant,anticavingandfluidregulator.四、技術(shù)研究3、抗高溫（240℃）鉆井液技術(shù)研究HighTemperatureToleranceDrillingFluidStudy(above240℃）

第19頁/共51頁

膨潤土2~4％＋高溫保護(hù)劑GBH1%＋高溫降濾失劑GJL－Ⅰ4％+高溫降濾失劑GJL－Ⅱ6％＋高溫防塌封堵劑GFD－Ⅰ4％＋(高溫防塌封堵劑GFD－Ⅱ3％＋高溫流型調(diào)節(jié)劑GLJ2％＋重晶石)

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

(240℃)基本配方BasicComposition(240℃)第20頁/共51頁高溫保護(hù)劑GBHHightemperatureprotectiveagentGBHGBH是三元共聚物，具有協(xié)同增效的作用，通過提高其他處理劑的抗溫能力而提高鉆井液體系的整體抗溫性能30-50℃；GBHisaterpolymerwithsynergisticeffect,whichcanincreasethetemperatureresistanceperformanceofdrillingfluidsystemforanother30-50℃byimprovingthetemperatureresistanceabilityofotheradditives.高溫降濾失劑GJL－Ⅰ、GJL－ⅡHighTemperatureFiltrationReducerGJL－ⅠandGJL－Ⅱ

GJL－Ⅰ、GJL－Ⅱ均為磺化樹脂型改性降濾失劑

GJL－ⅠandGJL－Ⅱareallsulfonationresinmodifiedfiltrationreducers.

高溫防塌封堵劑GFD－Ⅰ、GFD－Ⅱ

Anti-cavingagentandsealantGFD－ⅠandGFD－Ⅱ

GFD－Ⅰ為改性高軟化點天然植物瀝青衍生物，具有良好的抑制頁巖水化膨脹的作用，封堵井壁地層裂縫，降低HTHP濾失量和改善泥餅質(zhì)量

處理劑介紹AdditiveIntroduction四、技術(shù)研究第21頁/共51頁GFD－Ⅰismodifiedasphaltderivativesofsoftenednaturalplantswithgoodinhibitivebehaviorforhydrationofshale,sealingfracturedformation,

loweringHTHP

filtrationandimprovementforthequalityofmudcake.

GFD－Ⅱ為有機硅樹脂，高溫條件下具有良好的抑制性和封堵性，防止井壁坍塌、降低HTHP濾失量

GFD－Ⅱisakindoforganicsiliconresinwithgoodinhibitivebehaviorandsealingabilityunderhightemperature,preventingwellborecollapseanddecreasingHTHPfiltration.高溫流型調(diào)節(jié)劑GLJHighTemperatureFluidRegulatingAgentGLJ

硅氟高溫流型調(diào)節(jié)劑，在240℃超高溫情況下，調(diào)節(jié)鉆井液流變性，降低鉆井液的粘度、切力

Siliconandfluorinehightemperaturefluidagentcanregulaterheologyofdrillingfluidandlowertheviscosityandshearforceundertheultratemperature240℃處理劑介紹AdditiveIntroduction四、技術(shù)研究第22頁/共51頁抗溫性能評價StudyonTemperatureResistanceAbility溫度T℃老化情況Aging（16h）AVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值Value25熱滾前BeforeHotAging(HA)37.5316.51.5/70.569150熱滾后afterHA312651.5/2.50.65.99180熱滾后beforeHA382991.5/50.87.89200熱滾后AfterHA362882/40.55.09220熱滾后AfterHA38.5308.51.5/727.89240熱滾后AfterHA39.52712.53/93.8159

密度為1.4g/cm3鉆井液在不同溫度下老化后性能

DrillingFluidwithdensity1.4g/cm3Performanceunderdifferenttemperatureafterhotaging四、技術(shù)研究TechnologyStudy第23頁/共51頁抗溫性能評價StudyonTemperatureResistanceAbility

密度為1.4g/cm3鉆井液在不同溫度下老化后性能

DrillingFluidwithdensity1.4g/cm3Performanceunderdifferenttemperatureafteraging老化后流變性好，AV和PV隨著老化溫度升高而緩慢增加，一般不超過老化前數(shù)值

Rheologybecomesbetterafteraging.AVandPVincreaseslowlywiththetemperatureincreasingbutnormallywillnotexceedthevaluebeforeaging.YP隨老化溫度增加而增大，動塑比增大，攜巖能力增強

YPincreaseswiththetemperatureincreasing,ratioofdynamicshearforceandcuttingscarryingcapacityincreases.

老化后，pH值穩(wěn)定；HTHPFL能滿足施工要求

Afteraging,PHvalueisstableandHTHPFLcanmeettheoperationrequirements.

四、技術(shù)研究TechnologyStudy第24頁/共51頁抗溫性能評價StudyonTemperatureResistanceAbility不同密度鉆井液在240℃溫度下老化后性能DrillingFluidperformancewithdifferentdensityafteragingunder240℃密度Dg/cm3老化情況Aging（16h）AVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值(V)1.03熱滾前Before241861.5/42.69熱滾后After181191.5/5.54.61991.10熱滾前Before31.524.572/52.09熱滾后After292094/84.51591.15熱滾前Before33.5249.52/61.89熱滾后After31.5238.54.5/84.21591.40熱滾前After37.5316.51.5/70.59熱滾后After39.52712.53/93.81491.60熱滾前Before4131102/80.49熱滾后After4229134/9.53.2139四、技術(shù)研究TechnologyStudy第25頁/共51頁抗溫性能評價StudyonTemperatureResistanceAbility不同密度鉆井液在240℃溫度下老化后性能DrillingFluidwithdifferentdensityperformanceafteragingunder240℃1)AV、YP和PV均隨著密度增加而增加，沒有超過熱滾前數(shù)值1)AV,YPandPVincreasewiththedensitygoingupwithoutexceedingthevaluebeforehotaging.

2)HTHPFL隨著密度增加而減小

2)HTHPFLdecreaseswiththedensitygoingup.四、技術(shù)研究TechnologyStudy第26頁/共51頁密度1.15g/cm3的鉆井液在240℃下連續(xù)熱滾112h

Continuallyhotrollingfor112hoursunderthe240℃.Density1.15gpercubiccentimeter

隨著熱滾時間的增加，表觀粘度、塑性粘度、動切力、靜切力都緩慢下降，變化幅度很小，鉆井液沒有出現(xiàn)稠化、膠凝等現(xiàn)象。說明抗高溫鉆井液具有優(yōu)良的長時間抗溫穩(wěn)定性。Withhotaginglasts,apparentviscosity,plasticviscosity,yieldpoint,andstaticshearforcealldropslowly.Drillingfluidhasnotthickenorcomeoutwithgel.Thisexplainsthelong-timeheatstabilityofthehightemperaturedrillingfluid.

熱穩(wěn)定性能評價StudyontheHeatStability

四、技術(shù)研究TechnologyStudy第27頁/共51頁鉆屑粉加量（ＤＣ）Ｄ密度

g/cm3老化情況（16h）AgingAVmPa·sPVmPa·sYPPaG′/G″Pa/PaAPIFLmLHTHPFLmLpH值0％1.03熱滾后(PostHotAging)141132/52.515.895％1.03熱滾后12.593.51/2.5315.6910％1.03熱滾后14.5104.51/35.216.8915％1.03熱滾后17.5134.52/7614.890％1.4熱滾后22.5157.53/83.213.895％1.4熱滾后221573/97.217.2910％1.4熱滾后231942/97.618915％1.4熱滾后3122115/174.414.49水基鉆井液的抗鉆屑污染性能DrillingCuttings(DC)contamination

具有較強的抗鉆屑污染能力，抗鉆屑污染容限量達(dá)15%，老化后，鉆井液流變性能與污染前相近，滿足深井鉆井工藝需要。Strongcontaminationresistanceabilitywithmaximum15%drillingcuttingscontent.Afteraging,rheologyisalmostsamewiththeonebeforepollutionandcanmeettherequirementofdeepwelldrilling.抗污染性能Anti-PollutionAbility

四、技術(shù)研究TechnologyStudy第28頁/共51頁抑制性能InhibitiveBehavior配方Composition回收率ReturnRate(％)清水FreshWater67.68復(fù)合離子鉆井液MultifunctionalIonic

84.32抗高溫水基鉆井液waterbaseddrillingfluidwithhightemperaturetolerance87.91鉆井液抑制性能實驗結(jié)果（240℃滾動16h）

TestResultunder240℃,rolling16hours在240℃滾動條件下，鉆井液的回收率比較高。說明鉆井液具有抑制頁巖水化膨脹能力較強。Undertheconditionof240℃,drillingfluidrecoveryisfairlyhigh,whichmeansthedrillingfluidcaninhibitthehydrationofshale.四、技術(shù)研究TechnologyStudy第29頁/共51頁鉆井液潤滑性能LubricationPropertiesofDrillingFluid密度Densityg/cm3摩阻系數(shù)FricationFactor熱滾前

PreHotAging熱滾后PostHotAging1.030.0400.0451.350.0430.049

熱滾前后鉆井液的潤滑系數(shù)變化幅度不大，潤滑系數(shù)都小于0.06，小于普通水基鉆井液的摩阻系數(shù)0.2～0.35的范圍。鉆井液具有良好的潤滑性能

Thechangesoflubricationofthedrillingfluidbeforehotagingandafterhotaging.Thelubricationisbelow0.06,evenlowerthanthenormalbasedwaterdrillingfluidfricationinrangeof0.2and0.35.四、技術(shù)研究TechnologyStudy第30頁/共51頁動濾失量與時間關(guān)系RelationshipbetweenDynamicFiltrationandtime滲透率恢復(fù)值ReturnPermeability

鉆井液儲層保護(hù)效果評價EffectivenessEvaluationofReservoirProtectionofDrillingFluid鉆井液的具有良好的封堵性能，2h的動態(tài)濾失量僅為2.8ml。污染后巖心的滲透率恢復(fù)值達(dá)到84.6％。表明抗高溫鉆井液具有良好的儲層保護(hù)性能

Drillingfluidhasgoodsealingandbridgingability.Thedynamicfiltrationwithin2hoursisonly2.8ml.Aftercontamination,thereturnpermeabilityrateofthecorereaches84.6percent.Thisshowsreservoirprotectionabilityofdrillingfluid.四、技術(shù)研究TechnologyStudy第31頁/共51頁水基鉆井液壓力一定，不同溫度下流變曲線

RheologyCurveunderthesametemperatureanddifferentpressure

溫度由30℃上升到60℃時，粘度AV都迅速下降，再隨著溫度的繼續(xù)升高，表觀粘度的下降變得緩慢，鉆井液當(dāng)溫度達(dá)到210℃時，粘度將會隨著溫度升高有小幅上升的趨勢。Whentemperaturereachesfrom30℃to60℃,theviscositywilldroprapidly.Withthecontinuingincreaseofthetemperature,theviscosityslowsdownthedropstill210℃,theviscosityexperiencestheslightincreasewiththetemperatureraising.抗高溫（180-220℃）鉆井液流變性研究HighTemperatureTolerance(180-220℃)RheologyStudyofDrillingFluid

四、技術(shù)研究TechnologyStudy第32頁/共51頁鉆井液溫度一定，不同壓力下流變曲線

RheologyCurveunderthesametemperatureanddifferentpressure

結(jié)論：壓力對水基鉆井液流變性能的影響很小Conclusion:Pressurehasrarelyinfluencedthebasedwaterdrillingfluidrheology四、技術(shù)研究TechnologyStudy抗高溫（180-220℃）鉆井液流變性研究

HighTemperatureTolerance(180-220℃）RheologyStudyofDrillingFluid第33頁/共51頁莫深1井—概況Well

Moshen-1GeneralIntroduction

莫深1井位于準(zhǔn)噶爾盆地中央坳陷莫索灣凸起背斜，是為了了解盆地深層石炭系及其以上地層、構(gòu)造及含油氣性而部署的一口超深預(yù)探井。該井設(shè)計井深7380m，實際完鉆井深7500m。

Well

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

五、現(xiàn)場應(yīng)用On-SiteApplication第34頁/共51頁莫深1井—概況WellMoshen-1

GeneralIntroduction

根據(jù)該井壓力預(yù)測資料，井深5630m左右地層壓力系數(shù)最大值達(dá)2.12；井深6371m左右壓力系數(shù)為2.08。Theprospectedofwellpressureshowthatthehighestvaluerangeoftheformationis2.13inthedepthof5630,thepressurereaches2.08inthedepthof6,371m.根據(jù)鄰井試油測試溫度外推，得出井底溫度為204℃。Basedontheoiltestingheldinthenearbywell,wehavedrawnaconclusionaboutthebottomwelltemperaturewith204℃五、現(xiàn)場應(yīng)用On-SiteApplication第35頁/共51頁莫深1井—技術(shù)難題WellMoshen-1----TechnicalDifficulties井下溫度高，抗溫材料難以優(yōu)選

Hightemperatureinthedownhole.Hardtochoosetheright

heat-resistantmaterials

井底溫度高，抗溫超過200℃的處理劑很少。

Additiveswhichcantakethetemperatureabout200℃ishardlyseenduetheultrahightemperatureinthedownhole.

地層壓力系數(shù)高，高溫高壓下鉆井液難調(diào)控

Difficulttocontrolthedrillingfluidpropertiesunderthehighpressureoftheformation

高溫高壓情況存在同一井段，鉆井液流變性和高溫穩(wěn)定性難以控制。

Hightemperatureandpressureexistedinthesameformation,whichmakesitveryhardtocontroltherheologicalpropertiesandhightemperaturestabilityofthedrillingfluid.

五、現(xiàn)場應(yīng)用On-SiteApplication第36頁/共51頁莫深1井—技術(shù)難題WellMoshen-1-TechnicalDifficulties存在井壁穩(wěn)定問題BoreholeStabilityProblem

多個井段存在復(fù)雜的地質(zhì)情況，維持井壁穩(wěn)定的難度較大，要求鉆井液在高溫高壓條件下有較強的抑制性和封堵性。

Afewwellsectionshaveexperiencedthecomplicatedgeophysicalconditions.Tomaintaintheboreholestabilityhastorequireagreaterinhibitiveandsealingabilitiesforthedrillingfluidunderahigh-temperaturecircumstance.

鉆井液性能對地層污染敏感性強StrongSensibilityfortheformationcontaminationfromdrillingfluid三開后的鉆井液密度大于2.0g/cm3，固相含量高，鉆井液性能對外來物質(zhì)的污染敏感性很強，要求鉆井液要有較好的抗污染能力。

Drillingfluiddensityismorethan2.0g/cm3centimetersinthethirdopensectionwithhighsolidconcentration,easilypolluted.Thisrequiresthedrillingfluidwithabettercontaminationresistantability.五、現(xiàn)場應(yīng)用On-SiteApplication第37頁/共51頁莫深1井—室內(nèi)評價WellMoshen-1

EvaluationInside基本性能及抗溫性能評價實驗數(shù)據(jù)表

LabStatisticsforbasicfeaturesandheat-toleranceperformance實驗條件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、現(xiàn)場應(yīng)用On-SiteApplication第38頁/共51頁莫深1井—室內(nèi)評價WellMoshen-1-EvaluationInside基本性能及抗溫性能評價實驗數(shù)據(jù)表

LabStatisticsforbasicfeaturesandheat-toleranceperformance抗高溫高密度鉆井液體系在密度達(dá)到2.30g/cm3，經(jīng)150℃、180℃、220℃72h老化后后鉆井液的流變性、濾失造壁性較好，高溫高壓濾失量較低，表明鉆井液體系具有較好的抗溫性。

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

五、現(xiàn)場應(yīng)用On-SiteApplication第39頁/共51頁莫深1井WellMoshen-1井段m

WellSection密度g/cm3

DensityFVsAPIFLmLHTHPFLmLAVmPa.sPVmPa.sYPPa靜切力

StaticShearForce(SF)

初切InitialSF終切FinalSF轉(zhuǎn)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開鉆井液性能FourLargeOpenSectionDrillingFluidProperty五、現(xiàn)場應(yīng)用On-SiteApplication第40頁/共51頁莫深1井WellMoshen-1現(xiàn)場應(yīng)用效果表明：On-siteusingcameoutwiththebelowresults.

施工過程中井壁穩(wěn)定、井眼暢通，深部裸眼井段經(jīng)四次地層出水浸泡后，井眼仍能保持暢通。

Duringdevelopment,theholewasstableevenafterformationwaterwhichinthedeepbarefootintervalhademergedforfourtimes.

在井深6901.5m處理斷鉆具事故中，落井鉆具在井下靜止73h，未發(fā)生粘附或沉砂卡鉆，說明鉆井液的抑制性、失水造壁性、潤滑性、沉降穩(wěn)定性和高溫穩(wěn)定性優(yōu)良。Inthefishingaccidenthappenedinthedepthof6,901.5meters,thefishhasbeenstillfor73hours,andthereisnoadherenceandpipestuck,whichdisplayedtheexcellentperformanceofthedrillingfluidinthe五、現(xiàn)場應(yīng)用On-SiteApplication第41頁/共51頁莫深1井

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

體系流變性好，粘度與切力較低（漏斗粘度一直保持在60－70s范圍），為深部井段保持大排量、高泵壓（30-35MPa）鉆進(jìn)提高技術(shù)保證，創(chuàng)國內(nèi)陸上油田連續(xù)鉆進(jìn)泵壓最高水平。Goodrheologyofthesystemandlowviscosityandshearingforce,funnelviscositybetween60to70sallthewayhaveprovidedatechnologyguaranteeforthedrillingunderhighpumpingpressurebetween30to35MPaandflowrate.Thiscreatedthehighestlevelofcontinuousdrillingpumpingpressureintheinlandoilfields五、現(xiàn)場應(yīng)用On-SiteApplication第42頁/共51頁長深5井是松遼盆地南部的一口風(fēng)險探井，是吉林油田最深的一口井，設(shè)計井深5400米，實際完鉆井深5321米。該井最大技術(shù)難題為井底溫度高，預(yù)計井底溫度達(dá)到220℃左右，本井下部井段（4357-5321）使用抗高溫水基鉆井液，密度為1.25-1.28g/cm3，共進(jìn)尺964m，井底溫度207℃,鉆井95天,鉆井液性能穩(wěn)定。吉林油田長深5井Changshen5WellinJilinOilfield

五、現(xiàn)場應(yīng)用On-SiteApplicationLocatedinsouthofSongliaoBasin,wellChangshen-5isthedeepestwellinJilinOilfield,whichiswith5,400metersdesignedwelldepth,5321metersincompletionofthewell.Thetechnicaldifficultiesforthiswellishightemperature,asestimatedabout220℃ofdownhole.Thesectionbetween4,357metersand5,321metersareusedthewaterbasedrillingfluidw