資源描述:
《蘇里格氣田氣井生產(chǎn)動(dòng)態(tài)跟蹤分析研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、西安石油大學(xué)碩士學(xué)位論文蘇里格氣田氣井生產(chǎn)動(dòng)態(tài)跟蹤分析研究姓名:魏克穎申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):石油與天然氣工程指導(dǎo)教師:李天太20061025中文摘要論文題目:專業(yè):碩士生:指導(dǎo)教師:蘇里格氣田氣井生產(chǎn)動(dòng)態(tài)跟蹤分析研究天然氣開(kāi)發(fā)魏克穎(簽名)李天太(簽名)摘要蘇里格氣田蘇6井區(qū)氣井自從2002年投入評(píng)價(jià)開(kāi)采后,動(dòng)態(tài)上表現(xiàn)為壓力下降快,穩(wěn)產(chǎn)能力差。因此根據(jù)氣井的儲(chǔ)層特征和生產(chǎn)動(dòng)態(tài)特征,建立適合氣井的工作制度,是提高蘇里格氣田氣井單井產(chǎn)量和穩(wěn)產(chǎn)能力開(kāi)發(fā)的有效途徑。本文以氣井生產(chǎn)動(dòng)態(tài)分析的理論為基礎(chǔ),結(jié)合大量生產(chǎn)動(dòng)態(tài)數(shù)據(jù),系統(tǒng)地分析了氣井在低產(chǎn)、低壓生產(chǎn)階段的生產(chǎn)規(guī)律和產(chǎn)量遞減規(guī)律,指出蘇里格氣
2、田氣井的定壓和定產(chǎn)穩(wěn)產(chǎn)能力均較差,氣井產(chǎn)量遞減符合指數(shù)遞減特征,氣井在低壓和較低產(chǎn)量下生產(chǎn)能力較好;在此基礎(chǔ)上,對(duì)氣井進(jìn)行了動(dòng)態(tài)分類,并對(duì)氣井今后生產(chǎn)走勢(shì)進(jìn)行初步評(píng)估;其次系統(tǒng)分析了氣井產(chǎn)水的機(jī)理和規(guī)律,指出氣井產(chǎn)出水為天然氣中的凝析水和處于封閉環(huán)境下儲(chǔ)層內(nèi)的滯留水,并且主要是儲(chǔ)層的滯留水;接著對(duì)氣并的控制儲(chǔ)量進(jìn)行了預(yù)測(cè),計(jì)算出了不同氣井的儲(chǔ)量范圍;隨后分析了氣井壓裂施工參數(shù)對(duì)生產(chǎn)動(dòng)態(tài)的影響,并確定了氣井的壓裂規(guī)模;最后,根據(jù)目前氣井的生產(chǎn)動(dòng)態(tài),確定了正常生產(chǎn)和間歇生產(chǎn)氣井合理的生產(chǎn)制度。關(guān)鍵詞:生產(chǎn)動(dòng)態(tài),產(chǎn)量遞減,滯留水,壓裂參數(shù),儲(chǔ)量,生產(chǎn)制度論文類型:應(yīng)用基礎(chǔ)英文摘要Subject:
3、Studyofproductionperformanceofgas-wellintheSuligeGasfieldSpeciality:NaturalGasEngineeringName:WeiKeyingInstructor:LiTiantai(Theproductionperformanceofgas-wellintheSuligegasfieldshowsthatpressuredropsfastfairlyandrate-maintenancecapabilityispOorsincegaswellswereputintoappraisaltrialproductionfrom20
4、02.Inordertoestablishthesuitableproductionsystemsofgas-well,theproductiondynamicdatamustbeusedinaccordancewiththefeaturesofgeologyandexploitation.Itisthebasisofimprovingproductivityandrate-maintenancecapability.Onthebasisofthetheoryofgas-wellproductionperformance;theregularpatternsofproductionandi
5、tsdeclineofgas-wellinlowproduedvityandlowpressurestagearestudiedinthethesissystematically,combiningwiththeanalysesofmanyproductionsdynamicdatacomprehensively.Itcanbeconcludedthattherate-maintenancecapabilityofgaswellinconstantpressureandproductivityispoorrelatively;theproductiondeclinemodelisincon
6、formitywiththeexponentialtapcr.Therate-maintenancecapabilityinlowproductivityandpressureisfairlywell.Gaswellsareclassifiedbytheproductionperformanceandthetrendsofproductionofthemareescin妊Iled.ThemechanismandmodelofproducingwaterinwellsareaIlalyzlcd'itcanbeconcludedthattheproduced-wateristhemixture
7、ofcondensatewateringasandresidentwaterinconfinedreservoir,andthedominantin掣edientistheresidentwatt.Therecoverablereservesofdifferentwellsarecalcllla鋤.Theinflu,mceoffracturingparameterstogas-wellproductionperforma