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1、摘要世界上低滲透油田資源豐富，分布廣泛。隨著世界范圍內(nèi)中高滲透、儲(chǔ)量大的油田進(jìn)入中后期開(kāi)發(fā)開(kāi)采階段，水油比上升速度快，復(fù)雜難采的低滲透油田所占的比例越來(lái)越大。而且國(guó)內(nèi)油田開(kāi)發(fā)的主要對(duì)象已經(jīng)轉(zhuǎn)向以“低孔、低滲、低豐度”為特征的“三低”油藏。此類(lèi)油藏非均質(zhì)性嚴(yán)重，開(kāi)發(fā)難度大。如何合理有效開(kāi)發(fā)低滲、特低滲油藏是一項(xiàng)重要的研究課題。白馬中南部工區(qū)油藏具有低滲、特低滲的共性，開(kāi)展對(duì)白馬中南部工區(qū)低滲油藏注水開(kāi)發(fā)技術(shù)對(duì)策研究，不僅可以為有效開(kāi)發(fā)白馬中南部工區(qū)提供技術(shù)支持，同時(shí)也可以為類(lèi)似的油藏開(kāi)發(fā)提供重要的借鑒
2、價(jià)值和指導(dǎo)意義。本文首先從低滲透油藏地質(zhì)特征，開(kāi)采方式，井網(wǎng)部署及滲流規(guī)律來(lái)闡述低滲透油藏特性，總結(jié)目前常用的剩余油分布研究方法并重點(diǎn)介紹運(yùn)用數(shù)值模擬技術(shù)對(duì)剩余油分布進(jìn)行研究。然后對(duì)白馬中南部工區(qū)的區(qū)域地質(zhì)背景進(jìn)行了簡(jiǎn)要介紹，分析了油藏早期生產(chǎn)特征；并對(duì)油田沉積特征、油藏流體性質(zhì)、儲(chǔ)層各種物性等進(jìn)行分析研究。在此基礎(chǔ)上，開(kāi)展油藏工程研究，對(duì)目前工區(qū)產(chǎn)能，滲流特征進(jìn)行簡(jiǎn)要的介紹，重點(diǎn)研究白馬中南部工區(qū)的注水開(kāi)發(fā)效果，井網(wǎng)適應(yīng)性及油藏壓力。通過(guò)數(shù)值模擬技術(shù)掌握白馬中南部工區(qū)目前剩余油分布情況，結(jié)合剩余油
3、研究成果，設(shè)計(jì)三類(lèi)調(diào)整措施，并展開(kāi)油藏合理開(kāi)發(fā)模式論證，從而得到最優(yōu)方案。對(duì)優(yōu)化方案與以現(xiàn)有生產(chǎn)模式進(jìn)行對(duì)比，進(jìn)一步闡明優(yōu)化方案的優(yōu)勢(shì)所在。關(guān)鍵詞：低滲透油藏；油藏工程；剩余油分布；井網(wǎng)系統(tǒng)；數(shù)值模擬AbstractLow-permeabilityoilfieldsintheworldarerichandwidelydistributed.Astheworldofhighpermeability,largereservesofoilintothelatestagesofexplorationdeve
4、lopment,water-oilratioincreasedspeed;theproportionoflow-permeabilityoilfieldsisgrowing.Andthemaintargetofnationaloilfielddevelopmenthasshiftedto"lowporosity,lowpermeability,lowabundance”,asthefeaturesofthe"threelows"reservoirs.Suchreservoirheterogeneit
5、y,thedevelopmentisdifficult.Howrationalandeffectivedevelopmentoflowpermeabilityandlowpermeabilityreservoirisanimportantresearchtopic.Thesouth-centralworkareaofBaiMaZhongreservoirhasthecommonoflowpermeability,carryingoutwaterinjectionandtechnologicalmea
6、suresinlowpermeabilityofthesouth-central,notonlyforeffectivedevelopmentworkareatoprovidetechnicalsupport,butalsoforasimilarreservoirdevelopmenttoprovideimportantreferencevalueandsignificance.Firstly,itdescribestheflowcharacteristicsoflowpermeabilityres
7、ervoirsfromthelowpermeabilityreservoirgeologicalcharacteristics,exploitationmethod,patternofwellandseepagelaw,summarizescurrentresearchmethodscommonlyusedintheremainingoilandfocusontheuseofnumericalsimulationtostudythedistributionofremainingoil,andsumm
8、arizescurrentresearchmethodscommonlyusedintheremainingoilandfocusesontheuseofnumericalsimulationtostudythedistributionofremainingoil.Thenitdescribestheregionalgeologicalenvironmentofsouth-central,andanalyzesthereservoirproductioncharact
