Physical Modeling of Hydraulic Fracturing in Cross Boreholes in Nonuniform Stress Field

IF 0.7 4区工程技术 Q4 MINING & MINERAL PROCESSING

Journal of Mining Science Pub Date : 2024-07-02 DOI:10.1134/s106273912401006x

A. V. Patutin, L. A. Rybalkin, A. N. Drobchik, S. V. Serdyukov

引用次数: 0

Abstract

The article describes the lab-scale tests of hydraulic fracturing in the nonuniform stress field. Fractures were created in a system of two and three cross holes made in artificial cubic blocks with the edges 420 mm long. The stress raiser generated at the intersection of the holes facilitates fracturing in the neighborhood. In the tests the maximum compression was applied to a sample in perpendicular to the plane containing the axes of the holes. It is found that in such stress field, the system of three holes stabilizes a fracture in the mentioned plane better than the system of two holes.

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非均匀应力场跨孔水力压裂物理模型

摘要本文介绍了实验室规模的非均匀应力场水力压裂试验。在人造立方体块（边缘长 420 毫米）上制作的两孔和三孔交叉系统中产生了裂缝。孔洞交叉处产生的应力升高促进了附近区域的压裂。在试验中，对垂直于包含孔轴线的平面的试样施加了最大压缩。结果发现，在这种应力场中，三孔系统比两孔系统更能稳定上述平面上的断裂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Mining Science 工程技术-矿业与矿物加工

CiteScore

1.70

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： The Journal reflects the current trends of development in fundamental and applied mining sciences. It publishes original articles on geomechanics and geoinformation science, investigation of relationships between global geodynamic processes and man-induced disasters, physical and mathematical modeling of rheological and wave processes in multiphase structural geological media, rock failure, analysis and synthesis of mechanisms, automatic machines, and robots, science of mining machines, creation of resource-saving and ecologically safe technologies of mineral mining, mine aerology and mine thermal physics, coal seam degassing, mechanisms for origination of spontaneous fires and methods for their extinction, mineral dressing, and bowel exploitation.