Production Techniques for Methane Hydrate Resources and Field Test Programs
Production Techniques for Methane Hydrate Resources and Field Test Programs
复制标题
甲烷水合物资源生产技术及现场试验方案
DOI：
10.5026/jgeography.118.913
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发表时间：
2009
影响因子：
3.1
通讯作者：
Koji Yamamoto
中科院分区：
文献类型：
--
作者：
Koji Yamamoto
甲烷笼形水合物作为一种非常规油气资源已逐渐被石油工业所接受。然而，对这些新自然资源的资源评估和投资决定需要对生产技术进行实地核查。在政府支持的日本甲烷水合物研发计划下，MH 21资源开发财团与国际合作，在加拿大北极地区的麦肯齐三角洲进行了两次陆上天然气水合物生产试验，并计划在日本沃茨进行海上生产试验。2004年在南海海槽东部的勘探钻井活动揭示了该地区水合物矿床的资源规模以及含水合物沉积物的物理性质。从2002年第一次陆上生产试验和南开海槽勘探数据中获得的有关地层特性（如压力、温度和渗透率）的信息，沿着实验室和数值研究结果表明，简单降压（一种与常规石油的一次开采相当的节能采气方法）比以前认为的更可行。因此，减压方法和技术的验证被确定为日本国家石油天然气金属矿物资源机构（JOGMEC）和加拿大自然资源部（NRCan）在2007年和2008年进行的第二次生产试验的目标。2008年，通过降压进行的为期6天的天然气生产从水合物储层中生产了13000米的天然气，并导致了MH21的第二阶段研究，其中第一次海上生产试验计划于2012年进行。
The oil industry has gradually accepted methane clathrate hydrate (MH) as an unconventional hydrocarbon resource. However, resource assessments and investment decisions for such new natural resources require field verifications of production technologies. Under the government-supported Japan's Methane Hydrate R&D Program, the MH21 consortium for MH resource development has carried out two onshore gas hydrate production tests in the Mackenzie Delta in the Canadian arctic with international collaboration, and plans offshore production tests in Japanese waters. The exploration drilling campaign in the Eastern Nankai Trough in 2004 revealed the resource size of hydrate deposits as well as the physical properties of hydratebearing sediments in this area. Information on formation properties such as pressure, temperature, and permeabilities taken from the first onshore production test in 2002 and the Nankai Trough exploration data, along with laboratory and numerical study results, suggest that simple depressurization, an energy efficient gas production method that is comparable to the primary recovery of conventional oil, is more feasible than previously considered. Thus, verification of the depressurization method and technologies were defined as objectives of the second production test undertaken by Japan Oil, Gas and Metals National Corporation (JOGMEC) and Natural Resources Canada (NRCan) in 2007 and 2008. Six-day gas production by depressurization produced 13000 m of gas from the hydrate reservoir in 2008, and led to the phase 2 study of MH21 in which the first offshore production test is planned for 2012.