Error analysis and discussion of determining the maximum horizontal principal stress by hydraulic fracturing based on the compliance analysis of testing system

被引：0
作者：
Yang Y. [1 ,2 ]
Sun D. [1 ,2 ]
Qin X. [1 ,2 ]
Li A. [1 ,2 ]
Sun W. [1 ,2 ]
Zhang C. [1 ,2 ]
Li R. [1 ,2 ]
Meng W. [1 ,2 ]
Chen Q. [1 ,2 ]
机构：
[1] Institute of Geomechanics, Chinese Academy of Geological Science, Beijing
[2] Engineering Technology Innovation Center of In-situ Stress, Ministry of Natural Resources, Beijing
来源：
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2024年 / 43卷
基金：
中国国家自然科学基金;
关键词：
error analysis; hydraulic fracturing method; re-opening pressure; rock mechanics; test system compliance; the maximum horizontal principal stress;
D O I：
10.13722/j.cnki.jrme.2022.1273
中图分类号：
学科分类号：
摘要：
The large error in the results of the maximum horizontal principal stress is a prominent problem in the in-situ stress measurement by hydraulic fracturing method. In this paper，the differences and applicability of several main formulas used to calculate the maximum horizontal principal stress are compared and analyzed on the basis of the domestic and foreign hydraulic fracturing in-situ stress measurements regulations or suggested methods. Taking the test system compliance as the main influencing factor，the error sources and physical mechanism that affect the calculation accuracy of the maximum horizontal principal stress are analyzed in detail and depth. On this basis，taking the measured hydraulic fracturing data of the deep-hole obtained from the granite borehole in Beishan，Gansu as an example，the fracture reopening process is numerically analyzed based on the KGD theoretical model, and the influence of system compliance on the calculation result of the maximum horizontal principal stress is quantitatively studied. Taking the theoretical calculation value of eliminating the influence factors of compliance as correction value，the measured data and heoretical correction valueof 6 testing intervals in the hole depth range of 18–930 m are given. The results show that the error of the maximum horizontal principal stress measurement results increases gradually with the increase of test depth due to the influence of the test system compliance. When the test depth is 930 m，the relative error of the measurement results is 24.55%. The research results can provide a reference for the error problem of the maximum horizontal principal stress measurement results in relevant engineering applications，also provide a new idea and technical approach for the error analysis and further improvement of the reliability of the hydraulic fracturing in-situ stress measurements. © 2024 Academia Sinica. All rights reserved.
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页码：3385 / 3396
页数：11
相关论文
共 54 条
[1]  
HAIMSON B C, FAIRHURST C., Initiation and extension of hydraulic fractures in rocks[J], Journal of Petroleum Science and Engineering, 7, 3, pp. 310-318, (1967)
[2]  
HAIMSON B C., Hydraulic fracturing in porous and nonporous rock and its potential for determining in situ stress at great depth, pp. 1-233, (1968)
[3]  
ZOBACK M L，, ZOBACK M., State of stress in the conterminous United States[J], Journal of Geophysical Research, 85, B11, pp. 6113-6156, (1980)
[4]  
CORNET F H，, VALETTE B., In situ stress determination from hydraulic injection test data[J], Journal of Geophysical Research, 89, B13, pp. 11527-11537, (1984)
[5]  
HAIMSON B C., The hydraulic fracturing method of stress measurement：theory and practice[M], pp. 395-412, (1993)
[6]  
SCHEIDEGGER A E., On the connection between tectonic stresses and well fracturing data[J], Pure and Applied Geophysics, 46, 1, pp. 66-76, (1960)
[7]  
HAYASHI K，, SAKURAI I., Interpretation of hydraulic fracturing shut-in curves for tectonic stress measurements[J], International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 26, 6, pp. 477-482, (1989)
[8]  
HAYASHI K, HAIMSON B C., Characteristics of shut-in curves in hydraulic fracturing stress measurements and determination of in situ minimum compressive stress[J], Journal of Geophysical Research, 96, B11, pp. 311-321, (1991)
[9]  
HAIMSON B C, CORNET F H., ISRM suggested methods for rock stress estimation—part 3：hydraulic fracturing(HF) and/or hydraulic testing of pre-existing fractures(HTPF)[J], International Journal of Rock Mechanics and Mining Sciences, 40, pp. 1011-1020, (2003)
[10]  
LI Fangquan, ZHAI Qingshan, BI Shangxu, Et al., In-situ stress measurement by hydraulic fracturing and preliminary results[J], Acta Seismologica Sinica, 8, 4, pp. 431-438, (1986)
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