碎软低渗煤层顶板水平井分段压裂裂缝扩展规律及控制机制
巫修平，张群
Research on controlling mechanism of fracture propagation of multi-stage hydraulicfracturing horizontal well in roof of broken soft and low permeability coal seam
Wu Xiu-ping，Zhang Qun
天然气地球科学
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2018, (2): 268
-276
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DOI: 10.11764/j.issn.1672-1926.2017.11.019
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