【作者】 吴永平；

【导师】 王允诚；

【作者基本信息】 成都理工大学 ， 油气田开发工程， 2008， 博士

【摘要】 复杂断块油藏具有构造、储层、流体等因素的异常复杂性。本论文综合地质、测井、取心、试油及开发动态等资料,以开发地质、测井、沉积、地质建模、油藏工程、油藏数值模拟、地球物理学等学科理论为指导,对研究区分精细地层对比、沉积微相研究、构造精细解释、储层参数模型的建立、动态流动单元划分、储层地质建模、油藏工程研究、油藏数值模拟及剩余油综合评价方法研究8个专题做深入研究,通过应用相干体分析法、FZI约束下的测井物性解释、神经网络模式判识沉积微相等油藏表征新方法,细化单元逐层逐段精细研究,实现了剩余油分布的综合预测,并提出了油田开发调整部署建议。取得主要成果如下:1.在研究区采用了相干体分析方法精细解释本区的断层,明显提高了断层和构造解释的成图精度,对该区断块油藏构造有了突破性的认识。经三维精细构造解释后,新解释断层数由原来的11条增至14条,主断层f1、f2较原解释发生了较大的变化。2.利用神经网络模式识别法对该地区ES₃SH～ES₃X各段进行测井微相识别,将识别后的结果与岩心微相划分结果相对比,测井相的识别完全满足研究的需要。通过研究区沉积微相的划分指出ES₃XⅡ-1小层、ES₃XⅠ-1小层和ES₃SH-1小层辫状水道和水下分流河道微相发育,为研究区好的储集层。3.针对研究区储层泥质含量高,岩石分异较差,岩电关系不明确等特点,提出分流动分层指数FZI约束下的测井物性参数分段解释的研究新思路,与常规测井解释对比,较好的增加了储层物性参数（孔、渗、饱）的精度,为建立精确的地质模型打下了坚实的基础。4.运用毛管压力、相渗曲线中能反映储层渗透性随开发动态变化的参数作为动态流动单元的划分指标,然后根据本区资料的实际情况优选本次划分动态流动单元的参数指标,分别建立扇三角洲及浊积扇储集层的动态流动单元模型,为剩余油的评价打下了坚实的基础。通过该论文的研究,提出了以断块油田开发中后期剩余油预测为目的,利用储层动态流动单元与油藏数值模拟方法的有机的结合,探索出一条新的适用于断块油田开发中后期剩余油综合预测方法,对剩余油的挖潜具有重要的作用和意义。更多还原

【Abstract】 Complicated fault-block reservoir have being particular complex structure and reservoir and fluid feature. This dissertation combination geology, log, boring with sampling, testing for oil, development performance datum atc. Take development geology, log , sediment, geology model, reservoir engineering, reservoir numerical analogue, geophysics direction as to guide. We will separate into 8 special topic launch thorough study in region of interest. Including with the fine correlation of strata, precipitation facie research, fine structure elucidation, reservoir parameter interpretation model, Dynamic flow unit divide, build the reservoir geologic model, reservoir engineering , reservoir numerical analogue and oil remaining comprehensive evaluation approach. Pass by used the new reservoir characterizations, consist of the cohere analysis method , FZI restrict log interpretation method, neural network model distinguish sedimentary facies atc. Carefully divide unit to pursue the layer gradually fine analysis. Realization oil remaining distribute synthesize forecast. At the same time put forward oil field development adjusts and deployment suggestion.Through the research, the following results are achieved:1. Study the area adopted the technique of the Coherence to fine interpretation fault, through interpretation diagram accuracy be obviously raised. This region structure cognition have major changed. By this fine structure interpretation, the new interpretation structure from original 11 faults change into now 14 faults. The central faults have major changed.2. By use of the neural network model distinguish sedimentary facies, compare with the core sedimentary facies, electrofacies identify accuracy content to the demand of research. Through divide sedimentary facies, we have point out ES₃XⅡ-1 sublayer,ES₃XⅠ-1 sublayer, ES₃SH-1 are main distribute to the sublayer plant braided channel and under water channel facies, this facies are superlative reservoir in study the area.3. Aim at to the reservoir shale content high, rock differentiate is worse, rock and electric nature relationship ambiguous characteristics in this region, we have propose a new interpretation physical property parameter clue by the divide the different flow units interpretation. This clue versus the classic method will best raised interpretation accuracy, The method will provide a substantial base for the best create fine geologic model.4. By reflection capillary pressure and phase permeability curve characteristic parameters, we obtain divide Dynamic flow unit parameter index, according to the the actual situation optimization divide Dynamic flow unit parameter index in this area. Respectively established the fan delta and turbidite fan Dynamic flow unit models, These provide a substantial base for oil remaining evaluate.This dissertation put forward a new means for fit the remaining oil prediction in the development Medium-High period. Through the Dynamic flow unit and reservoir simulation method combine organically. This text investigate a new method of Comprehensive estimate remaining oil in the development Medium-High period reservoir. These methods will have the important sense to the oil remaining mapped out.更多还原