水力压裂提取水合物过程中井筒内的瞬态二维温度分布

IF 6.5 3区 工程技术 Q2 ENERGY & FUELS
Jinshun Wei , Jinghong Hu , YinQing Wang , Yidong Cai , Jun Lu
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引用次数: 0

摘要

现有文献对利用水力压裂法开采海洋环境中的天然气水合物的研究相对不足。本研究引入了一种新方法,采用全隐式积分法构建井筒二维温度分布模型。该模型考虑了压裂液时间、初始温度和压裂液位移等关键参数,以预测整个压裂过程中井筒及其周围环境的温度数据。调查显示,压裂液的初始温度和压裂过程的持续时间对井筒温度有很大影响,而压裂液位移的影响则很小。此外,通过对所建模型得出的结果与传统稳态公式得出的结果进行对比分析,证实了所建模型的准确性和有效性。这项研究极大地推动了我们对海洋环境下水力压裂作业期间井筒内温度动态的理解,从而为未来天然气水合物提取工作提供了宝贵的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Transient two-dimensional temperature distribution in wellbore during the process of hydraulic fracturing to extract hydrates

The utilization of hydraulic fracturing for the extraction of natural gas hydrates in maritime environments has been relatively underexplored in the existing literature. This study introduces a novel approach by employing a fully implicit integration method to construct a two-dimensional temperature distribution model of the wellbore. The model considers critical parameters such as fracturing fluid time, initial temperature, and fracturing fluid displacement to forecast the temperature data of the wellbore and its surrounding environments throughout the entire fracturing process. The investigation reveals that the initial temperature of the fracturing liquid and the duration of the fracturing process exert a substantial influence on the wellbore temperature, whereas the impact of fracturing fluid displacement is found to be minimal. Furthermore, a comparative analysis between the results derived from the proposed model and those obtained from traditional steady-state formulas substantiates the accuracy and efficacy of the developed model. This study significantly advances our comprehension of temperature dynamics within wellbores during hydraulic fracturing operations in maritime environments, thereby offering valuable insights for future endeavors in natural gas hydrate extraction.

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来源期刊
Natural Gas Industry B
Natural Gas Industry B Earth and Planetary Sciences-Geology
CiteScore
5.80
自引率
6.10%
发文量
46
审稿时长
79 days
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