Fluid Resource Energy and Environment    FREE LAB

Research

1、地质能源开发理论与模拟技术

Geo-energy reservoir modeling and simulation including oil/gas/thermal water

针对非常规油气储层渗流机理复杂，流体流动与岩石介质相互作用，平均采收率低，开采难度大等问题。团队近年来致力于“非常规储层流体渗流机理及开采模拟方法”的应用基础研究。搞清了特低渗透砂岩、页岩气和煤层气等非常规储层的流体非线性渗流规律，在此基础上建立了不同压裂开采条件下的油气藏模拟计算方法，提高油气储层数值模拟效率和预测精度，为非常规储层有效开发提供理论基础和技术支撑。

In view of the complex flow mechanism, the interfacial effects between fluid and rock, the low average recovery rate, and the difficulty of exploitation for the unconventional reservoir, etc. In recent years, our research team devoted to the basic research on the application of "unconventional reservoir fluid flow mechanism and production simulation method". First of all, the non-linear flow law of unconventional reservoir, such as ultra-low permeability sandstone, shale gas and coalbed methane, has been figured out. Based on that, the simulation calculation method of oil-gas reservoir under different fracturing conditions has been established, which can improve the numerical simulation efficiency and prediction accuracy. This study provides theoretical basis and technical support for effective development of unconventional reservoirs.

    2、能源与环境领域大数据分析及应用

    Big data analysis and application in area of energy and environment

随着能源和环境行业各种监测设备和智能传感器的普及，大量包括石油开发、大气污染、水污染等等的多源异构数据信息得以产生并被存储下来。本研究团队利用大数据分析技术对海量的油田开发和储层物性数据进行机器学习，获取不同类型数据之间的关联特征，实现目标参数的快速计算和准确预测，相对传统的理论分析和数值模拟方法，大数据分析技术操作简单，计算快速，准确率高。

With the popularization of various monitoring equipment and intelligent sensors in the energy and environment industry, a large number of heterogeneous data including oil development, air pollution, water pollution and so on are created and stored. Our research team uses the big data analysis technology and machine learn methods to study the massive oilfield development and reservoir physical data. And then, the correlation characteristics between different types of data can be acquired, which can achieve the fast calculation and accurate prediction of target parameters. Compared with traditional theoretical analysis and numerical simulation methods, the big data analysis technology is simple in operation, fast in calculation and high in accuracy.

　　　　　　　   　　 　图2 基于深度学习的储层关键参数智能预测

Figure 2 Intelligent prediction of key reservoir parameters based on deep learning

3、空间资源开发及原位利用

In situ resource utilization in space

随着空间科学的发展，太空资源开发利用成为未来资源利用和资源战略储备的发展方向。以月球资源开发为例。月球上存在水冰，水冰的原位利用不仅可以为人类在月球上的活动提供氧气，同时也能为未来的深空探测提供燃料。此外，由于太阳风的长期辐射，月壤中赋存大量的氦-3气体，氦-3是一种清洁的可控核聚变燃料。本研究从月壤的成分出发，通过实验和模拟搞清月球环境下水和氦-3的赋存状态以及热释放机理，为未来月球挥发分的原位利用提供理论基础。

With the development of space science, the development and utilization of space resources have become the new direction of resource utilization and strategic reserve in the future. Take the development of lunar resources as an example. Water ice exists on the moon. The in-situ utilization of water ice can not only provide oxygen for human activities on the moon, but also provide fuel for future deep space exploration. In addition, due to the long-term radiation of solar wind, there are a lot of helium-3 gas in lunar soil. Helium-3 is a clean and controllable fusion fuel. Based on the composition of lunar soil, the forms and thermal release mechanisms of water and helium-3 in lunar environment were clarified through experiments and simulations, which provided theoretical basis for in-situ utilization of lunar volatiles in the future.

　　　　　　　　　　图5 月球水冰资源原位利用

Figure 5 in-situ resource utilization about lunar water ice

4、海绵城市建设雨水入渗理论及产流控制

Rainfall infiltration and runoff control for Sponge City construction

随着城市化进程加快，城市雨洪控制管理成为了城市发展研究的重要课题，海绵城市建设是新一代城市雨洪控制管理概念。本研究团队通过室内试验、理论建模以及模拟计算相结合方法，研究了不同地层、不同雨强条件下雨水的入渗特征。结合海绵城市建设的工程实际经验，优化出了四类具体措施的工程参数，实现海绵城市建设的有效管控作用。

With the acceleration of urbanization, urban rainwater control and management has become an important topic of urban development research. Sponge city construction is a new concept of urban rainwater control and management. Through the combination of laboratory test, theoretical modeling and simulation calculation, our research team studied the rainfall infiltration characteristics of rain water in different strata and rain intensity conditions. Combining with the practical experience of sponge city construction, the engineering parameters of four types of specific measures are optimized, which can achieve the effective control of sponge city construction.

5、地下水资源利用与环境保护

Groundwater flow and Contaminant Transport

地下水的严重超采和严重污染，严重威胁到了人类生活质量和工业发展。针对煤矿开采严重缺水以及矿井水利用率低的问题，本研究团队提出了以“导、储、用”为特征的煤矿地下水库储用矿井水理念。本研究首次建立了有效应力影响水库储水系数的流固耦合数学模型，实现了对水库储水系数及库容的精确计算与合理分析。

The serious overexploitation and pollution of groundwater seriously threaten the quality of human life and industrial development. In view of the serious water shortage in coal mining and the low utilization rate of mine water, our research team proposed the concept of coal mine underground reservoir water storage characterized by "guiding, storing and using". In this research, the fluid-solid coupling mathematical model is established with the consideration of effect of effective stress on reservoir water storage coefficient, which realizes the accurate calculation and reasonable analysis of the reservoir water storage coefficient and storage capacity.