Gas Production from Methane Hydrate Reservoirs in Different Well Configurations: A Case Study in the Conditions of the Black Sea

Ubeyd, İbrahim Muhammed; Merey, Şükrü

doi:10.1021/acs.energyfuels.0c03522

Cited by 16 publications

(19 citation statements)

References 56 publications

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“…The average daily gas production in a single production well for commercial production level is ∼300 × 10 3 m 3 /day. 106 Until now, the maximum daily gas production rate is 35 000 m 3 from the Shenhu area in 2017's test production, which is below the average commercial level-gas production rate for a single well. Therefore, new production techniques are essential and wellbore configurations might increase gas production rates.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

“…In field test production aspect, it is important to increase daily gas production, extend long-term production and reduce production cost. The average daily gas production in a single production well for commercial production level is ∼300 × 10 3 m 3 /day . Until now, the maximum daily gas production rate is 35 000 m 3 from the Shenhu area in 2017’s test production, which is below the average commercial level-gas production rate for a single well.…”

Section: Challenges and Perspectivesmentioning

confidence: 99%

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A Review of the Resource and Test Production of Natural Gas Hydrates in China

et al. 2021

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China has been attaching great importance to research on natural gas hydrate resources. Since the mid-1990s, China has experienced three stages of resource prediction, investigation, and test production. Until now, five hydrate accumulations have been discovered by drilling and sampling in the Shenhu, Dongsha, Qiongdongnan Basins, and offshore Taiwan of the South China Sea and in the Muli area of Qilian Mountain, and seven hydrates have been inferred by various indicators, including geology, geophysics and geochemistry in the South China Sea, the East China Sea, and the Qinghai–Tibet Plateau. According to the hydrate stability zone, the natural gas hydrate resources in the South China Sea are estimated to be 64.6 × 1012 m3, those in the East China Sea are ∼28.5 × 1012 m3, and those in the terrestrial permafrost are ∼38 × 1012 m3. The total amount of the natural gas hydrates in China reaches up to 131.1 × 1012 m3, which is twice the amount of China’s conventional natural gas resources. China has successfully conducted the five field test production of gas hydrates in the Muli permafrost region of Qilian Mountain and in Shenhu area of the South China Sea since 2011, in particular first using horizontal well technologies to exploit hydrates that occurred in the fine-grained reservoirs. It is expected that commercial production from the hydrate reservoir will come true in the 2030s.

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Section: Challenges and Perspectivesmentioning

confidence: 99%

Section: Challenges and Perspectivesmentioning

confidence: 99%

A Review of the Resource and Test Production of Natural Gas Hydrates in China

et al. 2021

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“…These simulations showed significant effect of formation water seepage on the migration behavior of sand. , Appropriate selection of sand control tools and techniques can play a vital role in restoring and enhancing production from gas hydrate reservoirs. In this context, study of rheological properties of gas hydrate slurry system can provide an extra edge to understand its flow behavior and its apparent impact on the mechanical behavior of hydrate bearing sediments influencing production and subsidence. , Sand can severely affect artificial lift system installed in the well especially ESP (most preferred choice for gas hydrate reservoirs), which includes (but are not limited to) severe wear and tear of vanes, bearing and seal failure due to vibration, shaft breakage, and poor pump efficiency . Active preventive techniques like gravel packing, use of standalone screens, frac pack and chemical consolidation, and passive techniques like drawdown control, directional or selective drilling, and use of ESPs or jet pumps are commonly used for conventional deep-water gas wells and can be used for gas hydrate wells too .…”

Section: Well Completion For Gas Hydrate Reservoirsmentioning

confidence: 99%

“…95,96 Sand can severely affect artificial lift system installed in the well especially ESP (most preferred choice for gas hydrate reservoirs), which includes (but are not limited to) severe wear and tear of vanes, bearing and seal failure due to vibration, shaft breakage, and poor pump efficiency. 97 Active preventive techniques like gravel packing, use of standalone screens, frac pack and chemical consolidation, and passive techniques like drawdown control, directional or selective drilling, and use of ESPs or jet pumps are commonly used for conventional deep-water gas wells and can be used for gas hydrate wells too. 98 These techniques have been extensively tried and tested in successive pilot scale trials in Mallik field (Canada), Ignik Sikumi field (Alaska), Nankai Trough field (Japan), and Shenhu area (China), respectively.…”

Section: Rock Properties Permeabilitymentioning

confidence: 99%

A Comprehensive Review on Well Completion Operations and Artificial Lift Techniques for Methane Gas Production from Natural Gas Hydrate Reservoirs

2021

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The world's modernistic energy mix necessitates a clean and low carbon energy fuel. In this regard, the hydrocarbon sector is recognizing the ultimate potential of natural gas hydrates as a midterm solution for a resilient and sustainable future. Exploitation of natural gas hydrate will not only help us cut down carbon dioxide emissions but will also alter the geopolitics of energy. Like any unconventional resources, successful well completion and artificial lift installation are the prerequisites for optimizing production from gas hydrate reservoirs. Completing a gas hydrate reservoir was thought to be exorbitant and precarious but with advancement in technology and appropriate characterization of gas hydrate reservoirs, it is possible to complete and install artificial lift with no difficulty. This paper presents a holistic review of the completion design procedures and artificial lift techniques available for gas hydrate reservoirs focusing on the downhole equipment's and the method by which the well will be brought into production. It also highlights the completion designs, which could be followed in gas hydrate reservoirs worldwide. Furthermore, this article draws attention to the liquid loading problems in gas hydrate wells and discusses its effects on production rate, gas velocity, and liquid hold up. Compatibility of different artificial lift systems for various types of gas hydrate reservoirs has also been discussed. Finally, it also proposes a unique well completion design for controlled production along with efficient handling of sand and dissociated water. This article will help the reader to set the scene for future research activities on well completion design and artificial lift selection techniques for gas hydrate reservoirs.

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“…Currently, there is a growing interest in the development of natural deposits of gas hydrates, which represent signifi cant energy reserves, all over the world [1]. Promising off shore deposits of gas hydrates are located, for example, in the waters of the Black Sea [2] and The South China Sea [3].…”

Section: Introductionmentioning

confidence: 99%

Numerical study of microwave impact on gas hydrate plugs in a pipeline

Dreus¹,

Gubin²,

Bondarenko³

et al. 2022

Nauk. visn. nat. hirn. univ.

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Purpose. Development of a technique for the numerical study on the decomposition of gas hydrate plugs in deep-water pipelines under microwave radiation using a coaxial source. Theoretical efficiency evaluation of using such an impact to unblock the pipelines. Methodology. Mathematical modeling and computational experiment. Findings. An original mathematical model is proposed to describe heat transfer processes during the decomposition of gas hydrates in a pipeline under the action of heat sources distributed over the volume. The non-stationary problem of heat transfer was considered in a one-dimensional formulation. An algorithm for numerical computation is proposed. A mathematical expression is obtained for distributed heat sources generated by the microwave radiation from a coaxially located SHF antenna. Parametric numerical studies on temperature fields and decomposition dynamics of a gas hydrate plug are performed for specified parameters of pipe and microwave radiation power. The boundaries of the decomposition area and the dynamics of change in this area are determined. The decomposition time of a gas hydrate plug with a diameter of 0.3 m was determined using a 300 W microwave source. The complete decomposition took approximately 40 hours. Originality. The task of thermal decomposition of a cylindrical gas hydrate plug in a pipeline due to microwave heating using a coaxial microwave power source has been considered for the first time. The process is viewed as a sequence of several stages: heating, heating and decomposition, decomposition after complete heating of the gas hydrate layer. To model the volumetric dissociation of gas hydrate, it was proposed to use special functions that characterize the amount of decomposed gas hydrate. The introduction of such functions makes it possible to construct an efficient computational algorithm taking into account the action of volumetric sources in the decomposition area. The known models mainly consider only surface thermal effect or microwave impact on gas hydrate in porous mediums. The presented model allows describing the decomposition during volumetric heating of a solid hydrate adequately. Practical value. Blocking plugs may occur due to hydrate formation when transporting gas through deep-water pipelines or through pipelines in cold environments. The elimination of such complications is a complex technical task. In particular, a special source of microwave radiation, which was proposed by the authors in previous works, can be used to unblock the pipeline. The device that makes the microwave radiation is located along the pipe axis. The results of this work allow us to evaluate the effectiveness of the microwave method for eliminating the gas hydrate plug. The mathematical model and computational method can be used in the development of appropriate technologies using a coaxial microwave heating source.

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Gas Production from Methane Hydrate Reservoirs in Different Well Configurations: A Case Study in the Conditions of the Black Sea

Cited by 16 publications

References 56 publications

A Review of the Resource and Test Production of Natural Gas Hydrates in China

A Review of the Resource and Test Production of Natural Gas Hydrates in China

A Comprehensive Review on Well Completion Operations and Artificial Lift Techniques for Methane Gas Production from Natural Gas Hydrate Reservoirs

Numerical study of microwave impact on gas hydrate plugs in a pipeline

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