CAJ | 학술논문

老油田二次开发技术核心之一是重构地下认识体系，地质建模是定量表征储层新的认识体系的唯一手段。复杂断块老油田具有开发年限长、构造复杂、储层横向变化大、剩余油局部富集等特点，针对二次开发要求，提出了相应地质建模对策与方法。结合复杂断块老油田断层数量多、相互切割关系复杂的构造特点，采取分步模拟-关键层控制-整体构造建模的思路，准确高效建立精细构造模型；为了逼近地质“真实”的微相模拟效果，应用垂向和平面双地质趋势约束法多次迭代微相建模技术，确保后续属性模型最大程度接近储层地质“真实”参数分布；同时，针对重点潜力油砂体，提出不同随机模拟方法嵌套使用、逐级模拟的构型精细建模技术对策，快速建立科学的地质模型。将以上技术对策与方法应用到港东油田二次开发中，取得了良好的效果，为老油田二次开发地质建模提供一个借鉴的思路。
로유전이차개발기술핵심지일시중구지하인식체계，지질건모시정량표정저층신적인식체계적유일수단。복잡단괴로유전구유개발년한장、구조복잡、저층횡향변화대、잉여유국부부집등특점，침대이차개발요구，제출료상응지질건모대책여방법。결합복잡단괴로유전단층수량다、상호절할관계복잡적구조특점，채취분보모의-관건층공제-정체구조건모적사로，준학고효건립정세구조모형；위료핍근지질“진실”적미상모의효과，응용수향화평면쌍지질추세약속법다차질대미상건모기술，학보후속속성모형최대정도접근저층지질“진실”삼수분포；동시，침대중점잠력유사체，제출불동수궤모의방법감투사용、축급모의적구형정세건모기술대책，쾌속건립과학적지질모형。장이상기술대책여방법응용도항동유전이차개발중，취득료량호적효과，위로유전이차개발지질건모제공일개차감적사로。
Re-understanding of underground geologic system is one of the key technologies for secondary development of old oilfields ,while geological modeling is the only way to quantitatively re-understand geologic system of reservoirs .Old and complex fault block oilfields are characterized by long history of exploitation ,complex structures,large lateral varia-tion of reservoirs ,and local enrichment of remaining oil .In viewing of these features ,we proposed corresponding strategies and methods of geologic modeling .According to the characteristics that many faults crosscut each other ,the idea of step-wise simulation-key horizon controlling-overall structural modeling was adopted to accurately and efficiently build fine structure models .In order to approximate the “real” microfacies simulation ,multiple iterations microfacies modeling tech-nology under dual vertical and lateral geological trend constraints is adopt to ensure the maximum approximation of subse -quent attribute models with the ‘real’ geological parameters distribution of reservoirs .Meanwhile,for the key potential oil-bearing sandbodies ,configuration fine modeling technology that use different stochastic simulation methods in a nested way and performs simulation step by step was used to rapidly build geologic models .This new geological modeling tech-nology was successfully applied to the secondary development of Gangdong oilfield .