Research progress in natural gas hydrate reservoir stimulation

被引：0
|
作者：
Huang M. [1 ,2 ]
Wu L. [1 ,2 ]
Ning F. [1 ,2 ]
Wang J. [1 ,2 ]
Dou X. [1 ,2 ]
Zhang L. [1 ,2 ]
Liu T. [1 ,2 ]
Jiang G. [1 ,2 ]
机构：
[1] Faculty of Engineering, China University of Geosciences, Hubei, Wuhan
[2] National Center for International Research on Deep Earth Drilling and Resource Development, Hubei, Wuhan
来源：
Natural Gas Industry | 2022年 / 42卷 / 07期
关键词：
Chemical stimulation; Hydraulic fracture; Hydraulic fracturing; Natural gas hydrate; Near-well stimulation; Numerical model; Research progress; Reservoir stimulation;
D O I：
10.3787/j.issn.1000-0976.2022.07.016
中图分类号：
学科分类号：
摘要：
Natural gas hydrate is a kind of future energy with great potential. At present, the apparent factor hindering commercial hydrate development is the unqualified gas production rate, so it is necessary to research stimulation means from the perspective of hydrate exploitation method, and reservoir stimulation technology is particularly important. Reservoir stimulation is divided into three directions, namely, hydraulic fracturing, near-well stimulation, and chemical stimulation. Rapid progress has been made in the research of hydraulic fracturing and it results have verified the fracability of hydrate deposits. It is revealed that the fracturing mechanism of hydrate deposits is similar to the tensile failure of rocks. It is indicated that fractures can still make contribution to permeability improvement after they closed under confining pressure, which is beneficial to secondary opening. Also, the effects of in-situ stress and fracturing fluid on fracturing behaviors of hydrate deposits were analyzed, the numerical model of fracturing process was established, the mechanisms of hydraulic fractures to improve the depressurization and heat injection effects of hydrate reservoirs were analyzed, and the improvement effects of hydraulic fractures, as high-permeability channels on gas production rate and other key production indexes are discussed.
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页码：160 / 174
页数：14
相关论文
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