层间非均质大型平面模型水驱波及系数室内实验研究.pdf

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1、第35卷第6期石油褒劈沾届V01．35．No．62013年11月PETRoLEUMGEoLoGY&EXPERIMENTNOV．．2013文章编号：1001-6112(2013】06-0698—0h4doi：10．1l78l／sysydz201306698层间非均质大型平面模型水驱波及系数室内实验研究王明，杜利，国殿斌，李中超，聂法健(中国石化中原油田分公司石油勘探开发研究院，河南濮阳457001)摘要：为认清层间非均质性油藏注水开发动态波及过程．依据中原油田的非均质特征，制作了层间非均质大型平面物理模型。通过室内三维物理

2、模拟驱油实验，量化研究了正韵律高含水油藏地质模型不同注人体积及不同驱替压差下含油饱和度与波及系数的变化特征。结果表明，层间非均质模型三层的动用程度存在明显的差异；动用程度与储层渗透率正相关。当注入体积从0．10HCPV提高到1．15HCPV时，高渗层波及效率从36．73％变化到100％，中渗层从24．49％增大到76．60％，而低渗层仅从14．24％变化到44．90％。驱替压差提高时．对低渗层的采出程度提高幅度远大于高渗层。通过后期分层调整措施，可以提高中、低渗层的采出程度，层间调整是层间非均质油藏改善开发效果的有效措施

3、。关键词：层间非均质性；平面模型；波及系数；室内实验；中原油田中图分类号：TE3文献标识码：ALaboratoryexperimentalresearchonwaterfloodingsweepeficiencyoflarge-scaleandtwo-dimensionalinter-layerheterogeneousphysicalmodelWangMing，DuLi，GuoDianbin，LiZhongchao，NieFajian(ResearchInstituteofPetroleumExploration&Pr

4、oduction，SINOPECZhongyuanOieldCompany，Puyang，Henan457001，China)Abstract：Inordertorecognizethedynamicsweepprocessofheterogeneousreservoirinwaterinjectiondevelop—ment，alarge—scale，two—dimensionalheterogeneousphysicalmodelwasmadeforthefirsttimeonthebasisofZhongyuanO

5、ilField．Throughthethree—dimensionalphysicalsimulationexperimentinlaboratory，thequantita—tiveresearchonthevariationcharacteristicsofoilsaturationandsweepeficiencyofthegeologicalmodelofposi—tiverhythmandhighwater—cutreservoirunderdifferentinjectionvolumeanddisplace

6、mentpressurewasmade．Theresultsshowedthattherewereobviousdifferencesamongthethreelayers’producingdegreeoftheheteroge—neitymodelandtherewasapositivecorrelationbetweenproducingdegreeandreservoirpermeability．Whentheinjectionvolumewasraisedfrom0．10HCPVto1．15HCPV，thesw

7、eepeficiencyincreasedfrom36．73％to100％inhighpermeabilitylayer，from24．49％to76．60％inmiddlepermeabilitylayer，andfrom14．24％to44．90％inlowpermeabilitylayer．Whenthedisplacementpressuredifferencewasraised，therecoverypercentageoflowpermeabilitylayerwassignificantlyhigherth

8、anthatofhighpermeability．Throughhierarchicalorderingmeasures，therecoverypercentageofmiddlepermeabilitylayerandlowpermeabilitylayercanbeincreased，andtheinterlay