scholarly journals The second offshore production of methane hydrate in the Nankai Trough and gas production behavior from a heterogeneous methane hydrate reservoir

RSC Advances ◽  
2019 ◽  
Vol 9 (45) ◽  
pp. 25987-26013 ◽  
Author(s):  
K. Yamamoto ◽  
X.-X. Wang ◽  
M. Tamaki ◽  
K. Suzuki
Keyword(s):  
Data Acquisition ◽  
Methane Hydrate ◽  
Nankai Trough ◽  
Gas Production ◽  
Hydrate Reservoir ◽  
Offshore Production ◽  
Production Behavior ◽  
Data Acquisition Program ◽  
Made In

The second gas production attempt from a methane hydrate (MH) deposit in the eastern Nankai Trough area was made in 2017 with the intensive data acquisition program, and it revealed effects of reservoir characters on the MH dissociation behaviors.

Integrated Facies Modeling Workflow for Methane Hydrate Reservoir along the eastern Nankai Trough, Japan

2011 ◽  
Author(s):  
Than Tin Aung ◽  
Satoshi Noguchi ◽  
Nobutaka Oikawa ◽  
Takayuki Kanno ◽  
Machiko Tamaki ◽  
...  
Keyword(s):  
Methane Hydrate ◽  
Nankai Trough ◽  
Facies Modeling ◽  
Hydrate Reservoir

Gas recovery enhancement from methane hydrate reservoir in the Nankai Trough using vertical wells

Energy ◽  
2019 ◽  
Vol 166 ◽  
pp. 834-844 ◽  
Author(s):  
Tao Yu ◽  
Guoqing Guan ◽  
Abuliti Abudula ◽  
Akihiro Yoshida ◽  
Dayong Wang ◽  
...  
Keyword(s):  
Methane Hydrate ◽  
Nankai Trough ◽  
Vertical Wells ◽  
Gas Recovery ◽  
Hydrate Reservoir

scholarly journals Construction of 3 dimensional methane hydrate reservoir model in Eastern Nankai Trough and prediction of production test performance

2010 ◽  
Vol 75 (1) ◽  
pp. 72-83 ◽  
Author(s):  
Hisanao Ouchi ◽  
Masanori Kurihara ◽  
Akihiko Sato ◽  
Yoshihiro Masuda ◽  
Hideo Narita ◽  
...  
Keyword(s):  
Test Performance ◽  
Methane Hydrate ◽  
Nankai Trough ◽  
Production Test ◽  
Reservoir Model ◽  
3 Dimensional ◽  
Hydrate Reservoir

Comparison of Simplistic and Geologically Descriptive Production Modeling for Natural-Gas Hydrate by Depressurization

SPE Journal ◽  
2019 ◽  
Vol 24 (02) ◽  
pp. 563-578 ◽  
Author(s):  
Yilong Yuan ◽  
Tianfu Xu ◽  
Yingli Xia ◽  
Xin Xin
Keyword(s):  
Gas Hydrate ◽  
History Matching ◽  
Nankai Trough ◽  
Flow Behavior ◽  
Test Site ◽  
Gas Production ◽  
Production Test ◽  
Hydrate Reservoir ◽  
Hydrate Saturation ◽  
Production Modeling

Summary Marine-gas-hydrate-drilling exploration at the Eastern Nankai Trough of Japan revealed the variable distribution of hydrate accumulations, which are composed of alternating beds of sand, silt, and clay in sediments, with vertically varying porosity, permeability, and hydrate saturation. The main purposes of this work are to evaluate gas productivity and identify the multiphase-flow behavior from the sedimentary-complex hydrate reservoir by depressurization through a conventional vertical well. We first established a history-matching model by incorporating the available geological data at the offshore-production test site in the Eastern Nankai Trough. The reservoir model was validated by matching the fluid-flow rates at a production well and temperature changes at a monitoring well during a field test. The modeling results indicate that the hydrate-dissociation zone is strongly affected by the reservoir heterogeneity and shows a unique dissociation front. The gas-production rate is expected to increase with time and reach the considerable value of 3.6 × 104 std m3/d as a result of the significant expansion of the dissociation zone. The numerical model, using a simplified description of porosity, permeability, and hydrate saturation, leads to significant underestimation of gas productivity from the sedimentary-complex hydrate reservoir. The results also suggest that the interbedded-hydrate-occurrence systems might be a better candidate for methane (CH4) gas extraction than the massive hydrate reservoirs.

Numerical study on gas production from methane hydrate reservoir by depressurization in a reactor

2020 ◽  
Vol 134 ◽  
pp. 110330
Author(s):  
Yazhou Shao ◽  
Longbin Yang ◽  
Qun Zhang ◽  
Shidong Wang ◽  
Kunfang Wang ◽  
...  
Keyword(s):  
Methane Hydrate ◽  
Numerical Study ◽  
Gas Production ◽  
Hydrate Reservoir
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