摘要：The production of shale oil and gas is increasingly recognized as being influenced by temperature fields. Hydraulic fracturing involves the injection of substantial amounts of fracturing fluid into the reservoir, which alters the temperature field distribution and, in turn, affects shale gas production. In this work, we study the shale formations of Longmaxi, analyzing the factors that affect the thermophysical properties of shale under normal pressures. Using Hot Disk equipment, thermophysical properties were measured and a thermal conductivity model for shale was formulated from such data. The results reveal that mineral composition, temperature, and bedding characteristics are the primary determinants of shale thermophysical properties, while no significant correlation was found for porosity, permeability, or water saturation. We also identified variations for two distinct temperature ranges, below and above 60 degrees C, as each exhibited different rates of change in thermophysical properties. Notably, pronounced bedding leads to less uniform heat transfer within the reservoir. This study offers theoretical insights into predicting temperature changes during hydraulic fracturing, which may aid oil and gas production.

关键字：shale reservoir; thermophysical properties; hydraulic fracturing; Wufeng-Longmaxi formation

ISSN号：1742-2132

卷、期、页：卷22期1: 60-73

发表日期：2025-01-07

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,SCIE（科学引文索引网络版）

发表期刊名称：JOURNAL OF GEOPHYSICS AND ENGINEERING

参与作者：刘小宇,Zhang, Wei,Liu, Zongxun

通讯作者：吴华

第一作者：王小琼

论文类型：期刊论文

论文概要：王小琼,刘小宇,Zhang, Wei,吴华,Liu, Zongxun，An experimental investigation of the thermophysical properties of shale reservoirs: a case study of the Wufeng-Longmaxi formation in the Jiaoshiba Area，JOURNAL OF GEOPHYSICS AND ENGINEERING，2025，卷22期1: 60-73

论文题目：An experimental investigation of the thermophysical properties of shale reservoirs: a case study of the Wufeng-Longmaxi formation in the Jiaoshiba Area