压力和温度对泡行为的影响,用于增强低平衡钻井操作
Ahmed Gowida1, Salaheldin Elkatatny1, Ahmed Farid Ibrahim1
1College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia.
ACS omega
|January 15, 2024
概括
这项研究探讨了在高pH条件下使用合成海水的泡钻井液. 增加的压力提高了泡的稳定性,而更高的温度加快了泡的衰变,这对于优化深度钻井操作至关重要.
科学领域:
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
背景情况:
- 泡是一种有前途的低平衡钻井液,可提高效率并最大限度地减少形成损伤.
- 关于在高pH钻井环境中泡的行为存在有限的研究.
- 合成海水作为泡系统的可持续液体基础的新型使用.
研究的目的:
- 使用合成海水,研究在高pH条件下的泡稳定性和特性.
- 评估压力和温度对泡特性的影响.
- 评估氨基醇硫酸盐 (AAES) 作为生物降解型发泡剂的性能.
主要方法:
- 使用高压,高温 (HPHT) 泡分析仪进行的实验.
- 系统地改变压力和温度以观察泡的行为.
- 使用合成海水作为液体基和AAES作为发泡剂.
主要成果:
- 增加的压力显著提高了泡的稳定性,并促进了均的泡大小,特别是在较低的温度下.
- 高温 (75-90°C) 由于液体粘度降低,加快了泡的衰变.
- 压力是AAES泡在高达50°C的稳定性的主要因素;在更高的温度下,温度占主导地位.
- 温度对泡度的影响很小,但对泡稳定性和泡尺寸分布有很大影响.
结论:
- 泡钻井液在高压条件下表现出强性.
- 温度是影响泡稳定性和衰变的关键因素,特别是在高温环境中.
- 由于其在较低温度下的稳定性,AAES泡适用于表面和中间钻井.
- 了解温度诱导的泡变化对于优化深度和高温钻井的性能至关重要.
相关概念视频
Turbulent Flow: Problem Solving
130
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
130
Excess Pressure Inside a Drop and a Bubble
1.7K
The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
1.7K
Vapor Pressure of Fluid
1.3K
The vapor pressure of a fluid is a crucial concept in fluid mechanics, influencing phenomena such as boiling and cavitation. Vapor pressure refers to the pressure exerted by a vapor at a state of thermodynamic equilibrium with its corresponding liquid phase at a specific temperature. It represents the tendency of molecules to escape from the fluid surface into the vapor phase.
When a liquid is placed in a closed container with a small air space, and the space is evacuated, vapor molecules will...
When a liquid is placed in a closed container with a small air space, and the space is evacuated, vapor molecules will...
1.3K
Buoyancy
10.0K
When an object is placed in a fluid, it either floats or sinks. All objects in a fluid experience a buoyant force. For example, a metal ball sinks, while a rubber ball floats. Similarly, a submarine can sink and float by adjusting its buoyancy. The concept of buoyancy raises several interesting questions. For instance, where does this buoyant force come from? How much buoyant force is required to make an object sink or float? Do objects that sink get any support at all from the...
10.0K
Pressure Variation in a Fluid at Rest
256
In a fluid at rest, the pressure at any point beneath the fluid surface depends solely on the depth, not on the container's shape or size. This principle, known as hydrostatic pressure, arises because, in stationary fluids, there is no acceleration, meaning the forces within the fluid balance out. Only vertical forces, caused by the weight of the fluid above, contribute to pressure changes with depth.
When measuring pressure at two different levels within the fluid, the difference in...
When measuring pressure at two different levels within the fluid, the difference in...
256
Pressure of Fluids
15.9K
There are many examples of pressure in fluids in everyday life, such as in relation to blood (high or low blood pressure) and in relation to weather (high- and low-pressure weather systems). A given force can have a significantly different effect, depending on the area over which the force is exerted. For instance, a force applied to an area of 1 mm2 has a pressure that is 100 times greater than the same force applied to an area of 1 cm2. That's why a sharp needle is able to poke through...
15.9K


