热力作用下石油流体运移的能量方程

邱楠生; 方家虎

热力作用下石油流体运移的能量方程

邱楠生^{1, 2,},
方家虎³

1.
石油大学石油与天然气成藏机理教育部重点实验室, 北京 102249
2.
石油大学盆地与油藏研究中心, 北京 102249
3.
中国矿业大学资源系, 北京 100083

基金项目:

CNPC中青年创新基金项目 CX2000-05

详细信息

作者简介:
邱楠生(1968-)，男，副教授，矿产普查与勘探专业．E-mail：qiunsh@bjpeu.edu.cn

中图分类号: P618.130
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出版历程
- 收稿日期: 2004-03-19
- 刊出日期: 2004-07-25

Energy Formula for Oil Migration in Thermodynamic System

QIU Nan-sheng^{1, 2
,},
FANG Jia-hu³

1.
Key Laboratory for Hydrocarbon Accumulation Mechanism, University ofPetroleum, Ministry ofEducation, Beijing 102249, China
2.
Basin and Reservoir Research Center, University ofPetroleum, Beijing 102249, China
3.
Department ofResources, China University of Mining & Technology, Beijing 100083, China

摘要

摘要: 为了探讨油气运移成藏机制, 从热力学角度论证了热可以作为油运移的动力, 并根据模拟实验结果首次建立热力系条件下热作为流体运移动力时流体流动的能量方程, 研究了流体在热力作用下焓的变化情况.在模拟实验中油运移的速度和距离取决于油(流体)从外界吸收的热量及焓.由此, 有可能对热作为石油流体输运动力进行半定量-定量研究.同时, 结合实际例子探讨了热力学系统中流体运动的热力学关系, 认为热作为流体输运的动力在实际盆地中比较复杂.如果从单一因素(热)来考虑流体运移动力, 则取决于热的大小和输导层的物性、产状等.
- 热力作用 /
- 石油运移 /
- 能量方程 /
- 焓
Abstract: This paper discusses that heat can act as the driven force of oil migration in the point of view of thermodynamics. The energy formula for oil migration, that heat acts as the driven force of fluid movement, was established in the thermodynamic system based on the experimental results. The variation of enthalpy in the fluid flow indicates that heat and its enthalpy control the migration velocity and distance of oil flow. The enthalpy decreases with the increase of migration distance. The paper also discusses the dynamics of oil movement in semi-quantitative to quantitatively.At the same time, thermodynamic relation of fluid flow within the thermodynamic system is applied to the practical carriers, the results indicate that heat regime taking as the driven force shows more complicated patterns in practical basins. The distance of oil migration depends on the amount of heat and physical characteristics of carriers.
- thermodynamics /
- oil migration /
- energy formula /
- enthalpy

HTML全文

图 1 输导体中油运移的系统能量变化示意图

图中P_in、T_in、V_in、e_in、P_out、T_out、V_out和e_out等为流体进出系统的基本状态参数, Z₁、Z₂代表高程

Fig. 1. Sketch of energy variation during oil migration system in the reservoir

下载: 全尺寸图片幻灯片

图 2 流体运移速度方程示意图

Fig. 2. Sketch of fluid flow coordinate

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图 3 根据模拟实验得到的运移距离-时间关系曲线

a.实验条件为: T₁= 50℃, T₂= 20℃(ΔT= 30℃), 干砂, d= 0. 15 mm; b.实验条件为: T₁= 70℃, T₂= 20℃(ΔT= 50℃), 饱和水, d= 0.15 mm

Fig. 3. Relationship between migration distance and time from modeling results

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图 4 根据方程(21)和(23)得到的运移速度和时间的关系

Fig. 4. Migration velocity obtained from experiment model Ⅰ and Ⅱ

下载: 全尺寸图片幻灯片

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