14576.低滲透油田儲(chǔ)層損害評(píng)價(jià)及保護(hù)措施

1、論文題目：低滲透油田儲(chǔ)層損害評(píng)價(jià)及保護(hù)措施專業(yè)：安全技術(shù)及工程碩士生：張莎（簽名）______________指導(dǎo)教師：張辛亥（簽名）______________摘要我國(guó)低滲油藏資源豐富，分布面廣。隨著勘探開(kāi)發(fā)的深入，低滲透油田產(chǎn)量的比例逐年上升，但因其儲(chǔ)層物性較差，容易在開(kāi)發(fā)過(guò)程中受到損害，而且損害后的恢復(fù)能力也很差，進(jìn)而致使儲(chǔ)層的產(chǎn)能及產(chǎn)量降低。因此，研究?jī)?chǔ)層產(chǎn)生不安全狀態(tài)的危險(xiǎn)源和相應(yīng)的儲(chǔ)層保護(hù)技術(shù)就顯得尤為重要。盡管對(duì)儲(chǔ)層損害的

2、因素已有深刻的認(rèn)識(shí)，但由于儲(chǔ)層傷害的特點(diǎn)是因地制宜，因此有必要對(duì)具體油田進(jìn)行具體研究。本論文以低滲透油田永寧油區(qū)延長(zhǎng)組長(zhǎng)6油層為研究目標(biāo)，通過(guò)對(duì)其地質(zhì)特征和物性分析，剖析了儲(chǔ)層潛在危險(xiǎn)源，并結(jié)合敏感性實(shí)驗(yàn)定性分析損害機(jī)理，又通過(guò)計(jì)算該研究區(qū)域真表皮系數(shù)、地層損害半徑等參數(shù)，定量地確定該區(qū)的損害程度，并根據(jù)定性分析與定量計(jì)算，制定出了永寧油區(qū)長(zhǎng)6儲(chǔ)層預(yù)防損害的具體措施，針對(duì)損害最嚴(yán)重的射孔制定出優(yōu)化方案，為提高研究區(qū)產(chǎn)能提供技術(shù)支持。論文

3、主要獲得了以下成果：（l）通過(guò)對(duì)油藏地質(zhì)特征及儲(chǔ)層物性的研究分析了造成儲(chǔ)層損害的潛在危險(xiǎn)源；（2）通過(guò)敏感性實(shí)驗(yàn)評(píng)價(jià)，得到了儲(chǔ)層的各種敏感性程度，并提出了相應(yīng)的儲(chǔ)層保護(hù)建議；（3）通過(guò)表皮系數(shù)礦場(chǎng)評(píng)價(jià)法，對(duì)表皮系數(shù)進(jìn)行分解，計(jì)算出各因素的損害程度，并有針對(duì)性的制定相應(yīng)的保護(hù)措施；（4）優(yōu)選出了適合研究區(qū)工程地質(zhì)特征的射孔工藝，并通過(guò)計(jì)算分析評(píng)價(jià)了該區(qū)壓裂措施的儲(chǔ)層改造效果，為永寧油區(qū)低滲透儲(chǔ)層的開(kāi)發(fā)提供了有益的安全對(duì)策及保護(hù)意見(jiàn)。關(guān)鍵詞

4、：低滲透儲(chǔ)層；儲(chǔ)層損害；敏感性預(yù)測(cè)；礦場(chǎng)評(píng)價(jià)；儲(chǔ)層保護(hù)研究類型：應(yīng)用研究Subject:EvaluationprotectionmeasuresoflowpermeabilityreservoirdamageSpecialty:SafetyTechnologyEngineeringName:ZhangSha(Signature)Instruct:ZhangXinhai(Signature)ABSTRACTOurcountryisrich

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11、esthepotentialhazardscausereservoirdamage(2)theexperimentalevaluationofthesensitivitythesensitivitydegreeofreservoirputsfwardcrespondingsuggestionsfreservoirprotection(3)throughtheevaluationoftheskinfact)fieldmethoddecom