Shale Gas Geological Engineering Integrated Modeling and Numerical Simulation: Present Conditions, Challenges and Opportunities

doi:10.3969/j.issn.1002-302x.2018.05.005

Abstract

Abstract: The new model for key part of shale gas geological engineering integration organically unites the four main engineering systems of drilling, completion renovation, production and development. Based on the model shared by the cross-disciplinary departments, this paper summarizes engineering application of the four main systems from the angles of single well, platform and full gas field. It reviews the present conditions and developments of both domestic and foreign unconventional reservoir modeling and numerical simulation, focusing on 3D modeling, fracturing simulation and numerical simulation. The paper points out that China is an industrial leader in such areas as application of geophysical data, modeling in time, gas field size integration sharing model, full gas field numerical simulation, and various applications of the four main systems. The North America is more concentrated on mechanism study, basic mathematical modeling, research on modeling method and new numerical simulation technology, and fine parameters of size platform. This paper analyzes the current key realistic challenges in five areas -- quantitatively characterizing complicated natural fracture system, integrity of wellbore, plane (solid) infill well or solid well spacing, full shale gas field numerical simulation, and dynamic and gas states of wellbore. It also elaborates the main research orientation and mindset.

摘要： 页岩气地质工程一体化核心内涵新模型，将钻井、完井改造、生产和开发四大工程系统有机联系，在多学科、多部门一体化共享模型基础上，从单井、平台、全气田多尺度，概括了针对四大工程系统的主要工程应用。从三维建模、压裂模拟和数值模拟等方面，回顾了国内外非常规油气藏建模及数值模拟的现状及进展。指出我国在地球物理资料应用、适时建模、气田尺度一体化共享模型、全气田数值模拟、对四大工程系统各种应用的发掘和支持等领域走在前列；北美在机理研究、基础数学模型建立、建模方法及数模新技术探索、井或平台尺度的精细化参数研究等领域更加详细和深入。从复杂天然裂缝系统定量表征、井筒完整性、平面（立体）加密井或立体布井、页岩气田全气田数值模拟、井筒动态和气态动态耦合5 个领域分析了所面临的关键性现实挑战，探讨了主要研究方向和思路。

关键词: 页岩气, 地质工程一体化, 三维建模, 数值模拟, 钻井, 完井, 压裂, 裂缝系统定量表征, 井筒完整性

CLC Number:

Xian Chenggang. Shale Gas Geological Engineering Integrated Modeling and Numerical Simulation: Present Conditions, Challenges and Opportunities[J]. Petroleum Science and Technology Forum, 2018, 37(5): 24-34.

鲜成钢. 页岩气地质工程一体化建模及数值模拟：现状、挑战和机遇[J]. 石油科技论坛, 2018, 37(5): 24-34.

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