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《鄂爾多斯盆地隴東地區(qū)延長(zhǎng)組低滲透儲(chǔ)層孔隙結(jié)構(gòu)分類研究.pdf》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫(kù)。
1、第2O卷第2期EarthScienceFron地tie學(xué)rs前(C緣hin(a中U國(guó)niv地ers質(zhì)ity大o學(xué)fG(e北osc京1en)c；es北(B京eij大ing學(xué))；)PekingUniversity)Vol_2ONo．22013年3月Mar．2O13鄂爾多斯盆地隴東地區(qū)延長(zhǎng)組低滲透儲(chǔ)層孑L隙結(jié)構(gòu)分類研究冉新權(quán)，吳勝和，付晶，魏新善，楚美娟1．巾國(guó)石油長(zhǎng)慶油田分公司，陜西兩安7100182．中國(guó)石油大學(xué)(JL京)地球科學(xué)學(xué)院，北京102249RANXinquan，WUShenghe。，F(xiàn)UJing，WEI
2、Xinshan，CHUMeijuan1．PetroCkinaChangqing(~ljieldCompany，Xi710018，China2．CollegeOfGeoseiences，ChinaUniversityf)fPetroleum(Beijing)，Beijing102249，ChinaRANXinquan，Ⅵr【JShenghe，F(xiàn)UJing，eta1．ResearchontheporestructureclassificationoflowpermeabilityreservioroftheYanch
3、angFormationinLongdongArea，OrdosBasin．EarthScienceFrontiers，2013，20(2)：077-085Abstract：Usingthedatasuchascastthinsection，scanningelectronmicroscopeandmercury-injection，thepresentpaperinvestigatestheporestructureclassificationstandardsoflowpermeabilityreservoi
4、roftheYanchangFormationinI．ongdongArea，()rdosBasin．Thecorrelationanalysisamongcharacteristicparametersofmicroscopicporestructureandmacroscopicphysicalpropertiesshowsthatthemaximumconnectedpore—throatradiushasthebestcorrelativitywithpermeabilityandactsasthefav
5、orableparameterforthroatgrading；usingmethodofdataconfiguration，thepaperdeterminesthethroatgradingboundariesandestablishesthegradingstandardsofreservoirporesandthroats．ThereservoirporestructureoftheYanchangFormationcouldbeclassifiedintosixtypesincludingbig—mid
6、porecoarsethroattype，midsmallporemidthroattype，mid—smallporefinethroattype，smallporemicro—finethroattype，fine-microporemicrofinethroattype，andfine-microporemicrothroattype．Reservoircouldhavedifferentphysicalpropertiesandliquidproductioncapacityaccordingtoitsp
7、orestructuretype．Keywords：lowpermeabilityreservoir；microscopicporestructure；classifiedevaluation；YanchangFormationofI．ongdongArea摘要：運(yùn)用鑄體薄片、掃描電鏡與常規(guī)壓汞等資料，對(duì)隴東地區(qū)延長(zhǎng)組低滲透儲(chǔ)層孔隙結(jié)構(gòu)分類標(biāo)準(zhǔn)進(jìn)行了研究。不同孔隙結(jié)構(gòu)特征參數(shù)與宏觀物性參數(shù)的相關(guān)分析表明，最大連通喉道半徑與滲透率的相關(guān)關(guān)系最好，為喉道分級(jí)的最優(yōu)參數(shù)；運(yùn)用數(shù)據(jù)構(gòu)形的方法確定出了喉道分級(jí)界限，建立了儲(chǔ)
8、層孔隙、喉道分級(jí)標(biāo)準(zhǔn)。綜合孔隙與喉道大小的組合及儲(chǔ)層孔喉的其他特征，將延長(zhǎng)組儲(chǔ)層砂巖的孔隙結(jié)構(gòu)劃分為六種類型：大一中孔粗喉型、中一小孔中喉型、中一小孔細(xì)喉型、小孔微細(xì)喉型、細(xì)一微孔微細(xì)喉型和細(xì)一微孔微喉型。不同孔隙結(jié)構(gòu)類型的儲(chǔ)層具有不同的物性特征及不同的產(chǎn)液能力。關(guān)鍵詞：低滲透砂巖儲(chǔ)層；微觀孔隙結(jié)構(gòu)；分類評(píng)價(jià)；隴東地區(qū)延長(zhǎng)組中圖分類號(hào)：TE122文獻(xiàn)標(biāo)志碼：A文章編號(hào)：1
