超高温钻井液技术研究.pptx

内容提纲Content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℃.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Drillingfluidtechnologyofresistinghightemperaturehasbecomeatechnologybottleneckforthedeeplayeroilandnaturalgasresourceexplorationanddevelopment.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.二、国内外技术现状—国外Overseasanddomestictechnologycurrentsituation-OverseasMagcobor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:①CombinedbytheCa(OH)2orKCL,organicpolymercoaterandhightemperatureresistantstabilizer②heatstability,hightemperaturetoleranceabove200℃,strongsalinitytolerance③Lessenvironmentalhazard三、研究思路StudyApproach三、研究思路StudyApproach2、抗高温钻井液处理剂研制、评价与优选Research,Evaluation&OptimizationonDrillingFluidAdditives2、抗高温钻井液处理剂研制、评价与优选GBH反应时间对转化率的影响GBHrespondingtimeviatransformationrate图特性粘数随引发剂加量的变化关系图GBH的热重曲线2、抗高温钻井液处理剂研制、评价与优选Research,EvaluationandOptimizationonDrillingFluidAdditiveswithHighTemperatureTolerance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%o