稠油油藏蒸汽泡沫驅(qū)滲流機(jī)理

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1、第29卷第4期，遼寧石油化工大學(xué)學(xué)報(bào)V01．29No．42009年12月J()URNAI．OFLIAONINGUNIVERSITYOFPETROLEUM&CHEMICAl，TE('HNOI。OGYDec．2009文章編號(hào)：1672—6952I2009)04—0034—05稠油油藏蒸汽泡沫驅(qū)滲流機(jī)理齊寧1，李金發(fā)2，溫慶志1，曲占慶1，張貴才1(1．中國(guó)石油大學(xué)(華東)石油工程學(xué)院，山東東營(yíng)257061；2．中國(guó)石化勝利油田分公司濱南采油廠(chǎng)，山東濱州257600)摘要：針對(duì)吞吐開(kāi)采后期稠油油藏壓力大幅下降、

2、注汽汽竄等問(wèn)題，研究了集洗油、調(diào)剖、降粘三效舍一的高溫復(fù)合驅(qū)油體系。采用FCY泡沫劑作為三效舍一的高溫復(fù)合驅(qū)油體系的發(fā)泡劑，利用穩(wěn)態(tài)法測(cè)定了泡沫的封堵效果，通過(guò)滲流實(shí)驗(yàn)考察了滲流速度對(duì)封堵壓差的影響及泡沫作用下氣體滲流機(jī)理，并根據(jù)滲流機(jī)理實(shí)驗(yàn)結(jié)果，建立了阻力因子泡沫滲流模型。模型的計(jì)算結(jié)果與實(shí)驗(yàn)結(jié)果具有較好的一致性，模型在描述泡沫剪切變稀特性的同時(shí)，還考察了臨界含水飽和度、毛管教指數(shù)等各參數(shù)對(duì)氣體滲流的影響，為稠油油藏蒸汽泡沫驅(qū)提供了理論支持。關(guān)鍵詞：泡沫驅(qū)；注蒸汽；滲流機(jī)理；稠油油藏；阻力因子中圖分類(lèi)號(hào)

3、：TE357．46文獻(xiàn)標(biāo)識(shí)碼：Adoi：10．3696／j．issn．1672—6952．2009．04．010FoamFlowingMechanismsofSteam·—·——FoamFloodingforHeavy0ilReservoirsQINin91，LIJin—fa2，WENQing—zhil，QUZhan--qin91，ZHANGGui—cail(1．FacultyofPetroleumEngineering，ChinaUniversityofPetroleum(EastChina)，Dong

4、yingShandong257061，P．R．China；2．BinnanOilProductionPlantofShengli伍所eld，SinoPec，BinzhouShandong257600，P．R．China)Received6July2009；revised31August2009；accepted9September2009withAbstract：Hightemperaturecompositefloodingsystemsoil—washing，profile—controlling，v

5、iscosity—reductionfunctionsweredeveloped．ItisusedtOsolvethesevereproblemswhichwerefacedinthelatedevelopmentstagesuchasheavyoilreservoirspressuredeclininggreatlyandineffectivesteamchannelinginhighpermeabilityzones，etc．FCYhightemperaturemultifunctionalfoame

6、rwasresearchedasfoamingagentofhightemperaturecompositefloodingsystems。andpluggingcapacityoffoamwasmeasuredbystablemethod．Effectsofpercolationvelocityonpluggingpressuredifferentialandgaspercolationmechanismundertheexistenceoffoamwereresearchedbypercolation

7、experiments．Moreover，theresistancefactorfoampercolationmodelwasbuiltupbasedonexperimentresultsoffoampercolationmechanism．Goodconsistencybetweenresultsfrommodelandexperimentresultswasfound，andshear—thinningbehavioroffoamisdescribedpreferably．Effectofwholep

8、arameters，suchascriticalwatersaturation，capillarynumber，ongaspercolationwasalsoperformed，andtheorysupportisforsteam—foaminheavyoilreservoirs．providedfloodingKeywords：Foamflooding；Steaminjection；Percolationmechanism；