海洋天然气水合物降压开采地层井壁力学稳定性分析 <sup>1)</sup>

海洋天然气水合物降压开采地层井壁力学稳定性分析 ¹⁾

袁益龙^*^†,许天福^*^†,辛欣^*^†,夏盈莉^*^†,李冰^†^**²⁾(

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MECHANICAL STABILITY ANALYSIS OF STRATA AND WELLBORE ASSOCIATED WITH GAS PRODUCTION FROM OCEANIC HYDRATE-BEARING SEDIMENTS BY DEPRESSURIZATION ¹⁾

Yuan Yilong^*^†,Xu Tianfu^*^†,Xin Xin^*^†,Xia Yingli^*^†,Li Bing^†^**²⁾(

)

图6. 生产井产水速率$Q_{\rm W}$和气水体积比$R_{\rm GW}$随时间演化特征

Fig. 6. Evolution of water production rate ($Q_{\rm W})$ and gas to water ratio ($R_{\rm GW})$