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1、中圖分類號：TE345單位代碼：11414學(xué)號：2013212141題目草104塊邊底水稠油油藏開發(fā)對策研究學(xué)科專業(yè)油氣田開發(fā)工程研究方向油氣滲流理論與應(yīng)用碩士生曹崇指導(dǎo)教師寧正福（教授）王慶（講師）二○一六年五月摘要摘要本文以草104塊邊底水稠油油藏主力含油層ES2和ES3為研究對象，針對草104塊油藏出現(xiàn)的注汽井筒熱利用率低、生產(chǎn)井含水率高和產(chǎn)油量低等問題進(jìn)行了研究，并提出了開發(fā)對策。針對注汽井筒熱利用率低的問題，建立了井筒傳熱綜合分析模型并且將模型計(jì)算結(jié)果與現(xiàn)場測試結(jié)果對比驗(yàn)證了模型的正確性，然后對井筒內(nèi)各注汽參數(shù)敏感性進(jìn)行
2、分析，提出了適合該區(qū)塊的最優(yōu)注汽參數(shù)。針對該區(qū)塊邊底水侵的問題，在該區(qū)塊典型模型的基礎(chǔ)上對影響稠油油藏水侵特點(diǎn)的因素進(jìn)行了研究，最后提出某些井高含水層位進(jìn)行機(jī)械堵孔、化學(xué)劑選擇性堵孔以及開發(fā)方式由蒸汽吞吐轉(zhuǎn)為蒸汽驅(qū)的解決方法。接著在區(qū)塊典型模型基礎(chǔ)上對比吞吐到底和吞吐后轉(zhuǎn)驅(qū)兩種開發(fā)方式，進(jìn)行開發(fā)方式的優(yōu)選。最后把提高井筒熱利用率和控制邊底水措施應(yīng)用在全區(qū)數(shù)值模擬過程后，對比了四種不同轉(zhuǎn)驅(qū)時間下油藏開發(fā)二十年后的采收率，得出結(jié)論是2018年轉(zhuǎn)蒸汽驅(qū)效果最優(yōu)，二十年后采收率約為14.95%。關(guān)鍵詞：邊底水；稠油油藏；熱利用率；開發(fā)策略
3、-II-ABSTRACTStudyofDevelopmentCountermeasuresinCao104HeavyOilReservoirwithEdge-bottomWaterABSTRACTMainoillayersES2andES3ofCao104heavyoilreservoirwithedge-bottomwateraretakenastheresearchobject.Thatheatutilizationrateofinjectionwellboredecrease,watercutofproductionwell
4、sincreasesharplyandoilproductiondecreaseareexistingproblemsintheoilfield.Thearticledoesresearchontheseproblemsandseveraldevelopmentcountermeasuresareputforward.Fortheproblemoflowwellboreheatutilizationrateofsteaminjection,comprehensiveanalysisofwellboreheattransfermod
5、elisestablishedandthemodelcalculationresultsarecomparedwiththetestresultsinoilfiledtoverifythevalidityofthemodel.Thenarticleanalysesparameterssensitivityofsteaminjection,andputforwardtheoptimalsteaminjectionparameterstothisoilfiled.ForEdge-bottomwaterinvasionproblem,b
6、asedonthetypicalmodeloftheoilfiled,effectfactorsofwaterinvasiontoheavyoilreservoirisresearched,andputforwardsomesolutionssuchasmechanicalblockingmethodandselectiveblockingmethodwithchemicalblockingagentandchangingdevelopmentmodefromsteamhuffandpufftosteamdriving.Thena
7、rticlebasedonthetypicalmodel,comparesteamhuffandpuffwithsteamflooding,anddooptimalselection.Finally,toimprovethewellboreheatutilizationrateandcontroledge-bottomwater,measuresareappliedinthenumericalsimulationprocess.Comparerecoveryafter20yearsoffourdifferentplanswithd
8、ifferenttimetoturntosteamflooding,andtheconclusionisthatoptimaltimetoturntosteamfloodingisin2018,and20yearslaterrecoveryisab
