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砾岩油藏后期挖潜分析以克拉玛依八4+5油藏为例邓绍强1,黄全华1,肖莉3,金萍2(1.;2.;3.)砾岩油藏的非均质特征决定了砾岩总体开发效果差,尤其在油藏开发进入含水较高的中后期往往出现:油水流动关系复杂,水驱控制程度低,以及井网井距的不适应性导致储量动用程度低,同时地层和油水井井况的问题给油藏的后期挖潜带来困难针对以上问题利用动态和静态相结合的办法搞清油藏剩余油分布,通过调整注采结构平剖面压力场井网井距以及油水井综合措施等方法来提高油藏的采收率砾岩油藏;挖潜;注采结构;综合措施;采收率,,[1],;!!,,,,,,,5304+5,,,15304+5-,,41,42,51,528.0Km2,14.1m,18%,0.186m2,1412∀104t197812,1980,1990,200412511.4∀104t,36.22%,61.67%,0.098%,11剩余油分布复杂,剩余地质储量调动困难,,,,,,,,,4+5():42.5%,51.6%,47.5%,12地层压力下降快,油藏平面压力分布不均匀,,,,,,[1]4+51980,,,,,,,,,,13平剖面水驱油效果差别大,水淹水窜严重,,,,,,4+5,,80-90%;,,,14局部区域井网密度偏大,水驱控制程度低,,,,200-500m,800-1100m,,77200511内蒙古石油化工15地层及油水井状况差,,,T88592003914.37MPa,1t51716t,13.4%,,,,,3572t88318815221利用动态静态相结合的方法,搞清楚剩余油分布,4+5,,,,,,,,4+5,,,,41,4222定量优化油藏注水,合理调控平剖面压力场4+5,,,,,,,,,,,,,4+5,,23以稳油控水!为方针[2],调整注方式和剖面注水结构4+5,,,,200434,68824m3,2,10,5881t,17275t4+5,,,,,2002-200311,200159.3%65.5%24调整注采结构,提高水驱控制程度,6,,62t/,,,,,,4+519994,,,6,3,,6,13507t(20034990t),,611.78MPa12.41MPa,0.63MPa25开展堵水调剖和油井综合措施,取得良好效果1996-2004,,,111,97,87.3%,62666t,52,,,15907t,1996-200418,5821t1996-20014465,59459t1996-2001,7,2002-20048,34519t3(1),(2)4+5,,,,,(3),,,(4),,,78内蒙古石油化工200511王53断块注水防膨工艺研究许新华()从王53断块的储层敏感性实验研究得出,储层存在着中等强度以上的水敏,所以对于油井转注井,一定要进行转注前的防膨预处理采用岩心流动试验仪模拟注水过程进行岩心流动试验,优选出了适合王53区块注水预处理使用的防膨和稳定性能均好的一种粘土稳定剂,确定了预处理半径粘土稳定剂的用量,并进行了注水防膨工艺研究注水防膨;牛庄油田;储层敏感性;粘土稳定剂53,3.8km2,488∀104t53,,,,19923199443,2001,,15353,:#;∃,;%,11,,#,53;∃,1(m)(10-3m2)(10-3m2)(10-3m2)W597131286.413#6.3826.132W598231402.371#2.1602.050W597231285.762∃4.2863.143W598331402.210∃1.7431.23522.1最佳处理半径的选择,,:#;∃K13m,,,,3m;X,,K/K0(K0)0.5%,1,(5),,,,,,,,[1]胡复唐.砂砾岩油藏开发模式[M].北京:石油工业出版社,1997.[2]李庆昌,吴虻,赵立春等.砾岩油田开发[M].北京:石油工业出版社,1997.[3]李臣,杨晓丽.砂砾岩油藏高含水期控水稳油技术对策[J].新疆石油学报,2004;16(3).[4]董科武.产液结构调整改善砂砾岩油藏特高含水期开发[J].西部探矿工程,2004;12.:2005年7月15日Abstract:DengShaoqiang,HuangQuanhua,(SouthwestPetroleumInstitute),Xiaoli(ExploratoryandDevelopmentacademyofDagangoilfield),Jinping(XinjiangOilfieldCompany)Theheterogeneitycharacteristicofconglomeratereservoirdecideit&sexploitationeffectivenessisnotwell.Especiallyinthelaterexploitation,theconglomeratewillfacingthefollowproblems:complexrelationshipofwaterandoil,thewatercontroldegreeislow,theunadaptedpatternwellspcingleadtoalowerreservesemploydegree,andthebadconditionofstrata,oilwellandinjectionwellbringmuchdifficultiestothelaterdugpotentialityofconglomerate.Usingdynamicandstaticwaytoconfirmthedistributionofremainingoil.Accordingtoadjustpourandpluckstructureandpatternwellspacing,andthecomprehensivemeasurestoimprovetherecoveryfactorofconglomerate.KeyWordS:conglomeratereservoir,dugpotentiality,pourandpluckstructure,comprehensivemeasure,recoverfactor79200511内蒙古石油化工