中国石油大学学报（自然科学版）2025，Vol.49Issue(2)：167-174,8.DOI:10.3969/j.issn.1673-5005.2025.02.015
考虑温压效应的裂缝扩展模型及其在分布式光纤测温中的应用
A thermal-pressure coupling fracture propagation model and its application in DTS
摘要
Abstract
This study proposed a coupled modeling framework integrating flow and heat transfer processes in the wellbore,fractures and reservoir which was capable of calculation for fracture parameters and wellbore temperature distribution.The model explicitly accounted for thermal-pressure coupling effects on fluid properties(density and compressibility).Simulation results demonstrate that under a leak-off coefficient of 0.21×10-5 m/s0.5,the maximum discrepancy in fracture half-length between models with and without thermal-pressure coupling reaches 46.64 m during the initial 150 min of pumping.Further-more,the sensitivity analysis reveals that the positioning of distributed optical fiber temperature sensor(DTS)significantly affects measurement accuracy.By correlating simulated temperature profiles with field DTS data,the relative installation po-sition of DTS sensors can be quantitatively determined.关键词
裂缝扩展模型/裂缝温度场模型/温压效应/分布式光纤测温Key words
fracture propagation model/fracture thermal model/thermal effects/DTS分类
能源科技引用本文复制引用
沈安琪,王亮皓,魏建光,刘义坤,李玮,梁爽,王凤娇,姜亮亮..考虑温压效应的裂缝扩展模型及其在分布式光纤测温中的应用[J].中国石油大学学报（自然科学版）,2025,49(2):167-174,8.基金项目
国家自然科学基金项目(52074087) （52074087）
