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Keywords: gas hydrate
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-092
... ABSTRACT Natural gas hydrate is considered to be a huge, efficient and clean energy. Understanding the mechanism of fluid flow in hydrate-bearing sediments (HBS) plays an important role in guiding hydrate production. This paper constructs the 3D pore structure of HBS considering...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-097
... ABSTRACT With the gradual depletion of non-renewable energy sources such as coal and oil on the earth, natural gas hydrates, which are abundant in marine sediments, are considered to be a clean strategic replacement energy in the future. In this paper, a set of in-situ high-precision terrain...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-099
... have reference value for promoting hydrate commercial exploitation. INTRODUCTION Natural gas hydrate (NGH) is an alternative green energy attracting attentions all over the world (Makogon, 1982, 2007). When the ambient conditions are appropriate, especially within the high enough pressure...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1163
... Abstract The earthquake poses a potential hazard to the safety of deep-sea gas hydrate reservoir. The increase in temperature of ocean induced by global warming causes the decomposition of some deep-sea natural gas hydrates, which intensified the adverse effects on deep-sea reservoir...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1165
... Abstract The exploration and sampling efficiency of marine gas hydrate formation can be increased by using the wire-line retrieving drilling tools that includes both an advancing detection tool and a hydrate pressure core sampler. During drilling, formation resistivity is obtained using...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1114
... ABSTRACT Preventing secondary hydrate formation caused by low temperature and the high-pressure environment is one of the key factors for the success of offshore gas hydrate production test. In this paper, a dynamic Bayesian network and GO (DBN-GO) model are used to build a successful GO method...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-668
... for hydrate-based laboratory simulation, solving the safety issues during deepwater exploration and improving the operation efficiency in the future. INTRODUCTION Natural gas hydrate is a kind of ice-like hydrocarbon clathrate, widely distributed in polar tundra, continental slopes and ocean trenches...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-606
... ABSTRACT The paper established an optimization model to optimize 3D well trajectory of gas hydrate in deepwater considering wellbore stability and sand control. The sensitivity analysis of wellbore stability and critical production pressure related to inclination angle and azimuth angle...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-635
... ABSTRACT In-situ dissociation process of gas hydrate by partial-oxidation and heating through acid or oxidant injection into the reservoir has been proposed. However, it was only evaluated by simulator based on the calorific value of acid. In this study, we carried out gas hydrate dissociation...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-659
... that the asphaltene plays an important role in elucidating the phase stability of methane hydrate systems. INTRODUCTION Ever increasing energy demands have forced oil and gas exploration and production activities towards unconventional reserves (offshore oil and gas fields, gas hydrates, shale gas, etc...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-745
... ABSTRACT In this study, the influence of CO 2 injection into various gas hydrates (CH4 hydrate for sI, CH 4 + C 3 H 8 hydrate for sII, and CH 4 + methylcyclopentane (MCP) hydrate for sH) was investigated to reveal the replacement mechanism. The thermal properties were measured using HP μ...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-720
... ABSTRACT To determine the critical gas hydrate saturation for the field production test condition, a computational numerical model that reflects the conditions of a mini pressure cell decompression dissociation experiment according to gas hydrate saturation was constructed. The numerical model...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-737
... ABSTRACT Following the recent successful test extraction of gas hydrates in the South China Sea, fresh efforts are underway to develop equipment and facilities in a move towards commercial exploitation of this vast reserve of future energy source. Conventional subsea drilling and production...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-562
... concentration pipeline gas hydrate gas pipeline wax inhibition hydrate formation temperature wax remediation scale remediation shutdown gas field hydrate inhibitor prevention sm 3 upstream oil & gas pipeline zb meg paraffin remediation hydrate remediation zhang hydrate...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-438
... to 20°C (271.15°K∼293.00°K) and pressures from 6MPa to 11MPa (930∼1560PSI). Gas hydrate phase formation and decomposition circles were made in samples with water previously exposed to pressure of 50MPa and 10MPa. Also, a distinction of experiments data between the Kinetics (K) and Hydrate Stability Zone...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-491
... ABSTRACT It is known that the technology of developing gas hydrate fields with the usage of the replacement process is the most perspective from the point of view of process energy consumption (Xiao-Hui Wang, 2017, Oveckiy, 2016). The replacement process is extremely long. (Voronov, 2013...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-253
... plastic failure. Moreover, the undrained shear strength of clay sediment containing hydrate increases about 1∼7 times than that of clay sediment and decreases by 50% after hydrate dissociation. INTRODUCTION Gas hydrates, as a potential energy resource, are usually occurring as ice-like solids...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-697
... ABSTRACT Gas Hydrate is one of the most potential alternative energy resources in the 21st century. Exploration and exploitation of gas hydrate is facing huge environmental disaster risks, the seabed stability variation and environmental effects monitoring studies must be carried out before...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-285
... in the formation of the HHCDS are made, and hydraulic calculation of loading suspension into tankers are presented. The graphs describing the behavior of the system and its phase transformations are constructed. The second approach is use of a method for producing gas hydrate pellets and transporting them...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-852
... phenomena occurred in sediments that are coupled with velocity, mass and heat transfer, or the mechanical stress. experimental study upstream oil & gas hydrate gas hydrate dissociation Mesoscale Modeling of Methane Hydrate Dissociation in Homogeneous Porous Media Wu-Yang Sean Department...

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