Fine Reservoir Description

1. Introduction of Fine Reservoir Description

1.1 Overview

1.2 Fine Reservoir Description of High Water-cut Oilfield

1.2.1 Key problems

1.2.2 Trend

1.3 Fine Reservoir Description of Low-permeability Oilfield

1.3.1 Current status

1.3.2 Core contents

1.3.3 Trend

1.4 Fine Reservoir Description of Complex Lithologic Reservoir

1.4.1 Current status and key problems

1.4.2 Core contents

1.4.3 Trend


2. Characteristics and Contents of Fine Reservoir Description

2.1 Fine Reservoir Description in the Early Development Stage

2.2 Fine Reservoir Description in the Middle–Late Development Stage

2.2.1 Fine description of small faults and microstructures

2.2.2 Fine stratigraphic classification and correlation based on high-resolution sequence stratigraphy

2.2.3 Reservoir architecture characterization based on sedimentary microfacies analysis

2.2.4 Quantitative evaluation of reservoir pore structure

2.2.5 Reservoir fluid heterogeneity analysis

2.2.6 Reservoir change analysis

2.2.7 Geological modeling methods (e.g. multi-point geostatistics)

2.2.8 Multi-information remaining oil description


3. Methodology of Fine Reservoir Description

3.1 Fine Stratigraphic Classification and Correlation based on High-resolution Sequence Stratigraphy

3.1.1 Geology of Yulou reservoir

3.1.2 Sedimentary genesis as guidance

3.1.3 Satisfaction to the production practice

3.1.4 Principles for bed classification and correlation

3.1.5 Establishment of large-scale isochronous stratigraphic framework with logging and seismic data

3.1.6 Combination of high-resolution sequence stratigraphy and traditional method for stratigraphic classification and correlation

3.1.7 High-resolution sequence stratigraphy analysis

3.2 Multi-information Fracture Characterization of Volcanic Reservoir

3.2.1 Geology of the volcanic gas reservoir in Ying 1 Member in Xudong area, the Songliao Basin

3.2.2 Approach of fracture characterization

3.2.3 Classification of fractures in the target interval

3.2.4 Multi-information fracture characterization of volcanic reservoir

3.2.5 Fracture genesis and influencing factors

3.3 Reservoir Architecture Characterization based on Sedimentary Microfacies Classification

3.3.1 Current status

3.3.2 Architectures of the Lower Karamay Formation alluvial fan reservoir in an area at the northwestern margin of the Junggar Basin

3.4 Genetic Classification and Quantitative Characterization of Reservoir Pore Structure

3.4.1 Studies on pore structure

3.4.2 Pore structure of Yulou reservoir in an area of Western Sag, the Liaohe Basin

3.5 Reservoir Heterogeneity Analysis

3.5.1 Current status

3.5.2 Heterogeneity of Yulou Reservoir in an area of Western Sag, the Liaohe Basin

3.6 Comprehensive Quantitative Reservoir Evaluation based on Geologic Genesis Analysis

3.6.1 Current status 170

3.6.2 Classification and evaluation of Yulou reservoir in an area of Western Sag, the Liaohe Basin

3.7 Reservoir Flow Unit Classification

3.7.1 Geology and development of the Yulou reservoir in an area of Western Sag, the Liaohe Basin

3.7.2 Research approach

3.7.3 Parameter determination for reservoir flow unit classification

3.7.4 Results of reservoir flow unit classification

3.8 Multi-point Geostatistical Modeling

3.8.1 Current status

3.8.2 Current status and principle of multi-point geostatistical modeling and comparison with traditional geological modeling methods

3.8.3 Examples

3.8.4 Problems and trend

3.9 Remaining Oil Characterization

3.9.1 Current status

3.9.2 Contents

3.9.3 Methods

3.9.4 Problems and trend


4. Challenges and Solutions of Fine Reservoir Characterization

4.1 Challenges of Fine Reservoir Characterization

4.2 Solutions of Fine Reservoir Characterization

4.2.1 Planning the basic data acquisition scientifically

4.2.2 Setting the study project properly

4.2.3 Stressing on key contents of study

4.2.4 Paying attention to the practical application of study results

4.2.5 Enhancing the level of informatization by constructing the digital reservoir

4.2.6. Enhancing the quality control of study process and result

4.2.7. Reducing the cost and improving the efficiency with new methods/techniques

4.2.8. Considering carefully the economic effectiveness