页岩油在现场生产使用一种新的流热合方法
1National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China.
ACS omega
|February 26, 2024
概括
本研究介绍了环境温度气体现场加热 (ATGIH) 方法用于页岩开发. 通过创建气体屏障和优化水库条件,ATGIH减轻了地下水污染,并提高了能源效率.
科学领域:
- 能源资源 能源资源
- 地质化学 地质化学
- 储水库工程 储水库工程
背景情况:
- 页岩油开发带来了地下水污染的风险.
- 传统方法在防止热量和污染物迁移方面面临挑战.
研究的目的:
- 介绍和评估环境温度气体现场加热 (ATGIH) 方法.
- 评估ATGIH在缓解地下水污染方面的有效性.
- 提高页岩石油开采的能源效率.
主要方法:
- 热化学合储模拟.
- 在注入井和生产井之间实施低温气体屏障.
- 对气体注射对流体流动性和异质性控制的影响的分析.
主要成果:
- ATGIH有效地防止水的透,并减轻地下水的污染.
- 气体注入改善了油和气相流动性.
- 优化井间距和异质性 (相关长度) 影响能源效率和回收.
结论:
- ATGIH方法是可持续页岩开发的可行创新.
- ATGIH为地下水污染问题提供解决方案.
- 储模拟证实了ATGIH提高能源效率的潜力.
相关概念视频
01:12Heat Flow and Specific Heat
Heat is a type of energy transfer that is caused by a temperature difference, and it can change the temperature of an object. Since heat is a form of energy, its SI unit is the joule (J). Another common unit of energy often used for heat is the calorie (cal), which is defined as the energy needed to change the temperature of 1 g of water by 1 °C, specifically between 14.5 °C and 15.5 °C, since the energy needed shows a slight temperature dependence. Another commonly used unit is the kilocalorie...
01:14Mechanisms of Heat Transfer I
Just as interesting as the effects of heat transfer on a system are the methods by which the heat transfer occur. Whenever there is a temperature difference, heat transfer occurs. It may occur rapidly, such as through a cooking pan, or slowly, such as through the walls of a picnic ice box. So many processes involve heat transfer that it is hard to imagine a situation where no heat transfer occurs. Yet, every heat transfer takes place by only three methods: conduction, convection, and radiation.
01:20Mechanisms of Heat Transfer II
In convection, thermal energy is carried by the large-scale flow of matter. Ocean currents and large-scale atmospheric circulation, which result from the buoyancy of warm air and water, transfer hot air from the tropics toward the poles and cold air from the poles toward the tropics. The Earth’s rotation interacts with those flows, causing the observed eastward flow of air in the temperate zones. Convection dominates heat transfer by air, and the amount of available space for the airflow...
01:14Mechanisms of Heat Transfer
Heat transfer between the human body and its environment occurs through four main mechanisms: conduction, convection, radiation, and evaporation.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
Conduction, accounting for approximately 3% of body heat loss at rest, is the process of exchanging heat between molecules of two materials in direct contact. This can result in both heat loss and gain. For instance, when the body is submerged in water, which conducts heat 20 times more effectively than air, it can either lose or gain significant heat.
01:22Couette Flow
Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...
01:25Design Example: Flow of Oil Through Circular Pipes
Understanding fluid flow behavior through pipes is critical in fluid mechanics, especially in applications like oil transportation through pipelines. Hagen-Poiseuille's law provides an exact solution derived from the Navier-Stokes equations for steady, incompressible, and laminar flow within a circular pipe. Hagen-Poiseuille's law helps determine the necessary pressure drop across a pipeline section by determining parameters like pipe length, radius, oil viscosity, and the desired volumetric...