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1、摘要低渗透油田是指油层储层渗透率低、丰度低、单井产能低的油田。随着建设时间的延长,低渗透油田普遍出现原油产量下降,综合含水上升,地面系统布局不合理、负荷不平衡、设施腐蚀老化等问题,需更新的站、所、设备设施、管线数量日益增多,导致生产运行费用、维修维护费用和管理费用逐年增高,不仅影响了油田的安全生产,同时影响了油田开发的经济效益。在我国各大油田进入开发中后期、能源紧缺的情况下,加紧低渗透油气的勘探开发具有很重要的现实作用和战略意义。中国低渗透油气资源丰富,具有很大的勘探开发潜力。近二十年来,在低渗透砂岩、海相碳酸盐岩、火山岩勘探方面取得了很大的发现,形成了国际一流的开发配套技术。低渗
2、透油气田开发成熟技术有注水、压裂、注气等。多分支井技术、地震裂缝成像和裂缝诊断技术、注气提高采收率等新技术快速发展,发达国家低渗透油气田开发技术日趋成熟。本文主要介绍了当前低渗透油藏的开发技术。关键词:低渗透油藏;油藏表征;油气藏保护;欠平衡钻井;井网部署.AbstacctReferstothelowpermeabilityoilfieldreservoirreservoir,lowpermeability,lowabundanceandlowsinglewellproductioncapacityoftheoilfield.Astheextensionofconstruction
3、time,lowpermeabilityoilfieldoilproductiondeclinegenerally,comprehensivewatercutrise,groundsystemlayoutisunreasonable,unbalancedload,facilitiescorrosionproblemssuchasaging,needtoupdatethenumberofstand,facility,equipment,pipeline,ledtotheproductionoperationcost,maintenancemaintenancecostsandmana
4、gementfeesincreasedyearbyyear,notonlyaffecttheoilfieldproductionsafety,atthesametimeaffectedtheeconomicbenefitsofoilfielddevelopment.Inourcountryeachbigoilfieldinmidandlateintothedevelopment,energyshortagesituation,tighteningoflowpermeabilityoilandgasexplorationanddevelopmenthaveveryimportantr
5、ealisticandstrategicsignificance.Chinaisrichinlowpermeabilityoilandgasresources,Hasagreatpotentialforexplorationanddevelopment.Overthepasttwentyyears,Inlowpermeabilitysandstone,Marinecarbonaterock,volcanicrockexplorationhasmadegreatdiscovery,Formedtheinternationalfirst-classsupportingtechnolog
6、ydevelopment.Lowpermeabilityoilandgasfielddevelopmentmaturetechnologywithwaterinjection,fracturing,gasinjection.Multi-branchWells,seismicimagingandcracksdiagnosistechnology,iorbygasinjection,etc.Newtechnologyrapiddevelopment,Lowpermeabilityoilandgasfielddevelopmenttechnologyinthedevelopedcount
7、rieshasbecomeincreasinglymature.Thispapermainlyintroducesthedevelopmentoflowpermeabilityreservoirs.Keywords:Lowpermeabilityreservoirs;Reservoircharacterization;Hydrocarbonreservoirprotection;Underbalanceddrilling;Wellpatterndeployment.目