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Keywords: hydrate
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35872-MS
... Abstract High porosity, high saturation natural gas hydrate-filled sands are of interest as potential natural gas reservoirs. We describe and compare the two most explored high saturation hydrate-bearing reservoir sands in the northern Gulf of Mexico, the Sigsbee sand in Green Canyon block 955...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35944-MS
... Abstract We performed uniaxial compression tests on specimens from a sandy silt reservoir with a hydrate saturation greater than 80% and on specimens of the same reservoir without hydrate present. During loading, the hydrate-bearing reservoir samples are stiffer than equivalent samples without...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35738-MS
... Abstract Gas hydrates and shallow gas are common hazards encountered during drilling. They also are important components of the global carbon cycle and a potential energy resource. Predicting the occurrence of free gas and hydrates, particularly highly concentrated accumulations, is therefore...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35912-MS
... Abstract Gas hydrates are increasingly acknowledged as a potential future natural gas resource, sparking extensive global research into their geological characteristics and the technology needed for production. This paper offers a comprehensive review of gas hydrate-related research initiatives...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35712-MS
... Abstract Deepwater natural gas hydrates have attracted widespread attention as a clean energy resource, but their decomposition process will significantly change the physical and mechanical properties of the formation, posing a threat to the stability of the casing during drilling. Deepwater...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2025
Paper Number: OTC-35825-MS
... Abstract In the process of extracting naturally-occurring oceanic gas hydrates, the dissociation of hydrates can cause a reduction in soil strength. This reduction has the potential to trigger slope failure and submarine landslides, which present a catastrophic threat to offshore facilities...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35185-MS
... Abstract Radial wells are recognized as a promising type of well for achieving the commercial development of natural gas hydrate (NGH). Previous research has confirmed the positive impact of radial wells on enhancing the efficiency of NGH exploitation. However, the impact of radial wells...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35173-MS
... of solidification such as dry ice and CO 2 hydrate via process simulation and lab scale experiments. The results indicated the risk of dry ice is affected from circumstance and phase of CO 2 . The CO 2 hydrate risk is assessed by conducting a matching experimental data of batch reactor with experimental data...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35138-MS
... In normal operation, a gas condensate field can be operated in pressure and temperature conditions where hydrates are stable. To mitigate the formation and deposition of hydrates, Mono Ethylene Glycol (MEG) is injected in the subsea flowline at high concentration (30 to 60% vol. versus water...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35134-MS
... Abstract Flow assurance problems usually impede fluid transfer across process facilities especially in low-temperature regions, where oil and gas produced contain more wax as fields mature, and hydrates form at certain temperatures and pressures in facilities transporting acidic gases produced...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35362-MS
... for a designated number of iterations (epochs) or until ℒ if minimized below some predetermined value. There has been demonstrated success in the application of DNNs to hydrate plugging. Qin et al. developed a DNN for this problem [6] trained on data from two laboratory-scale flowloops. The network showed...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35501-MS
... Abstract South China Sea hydrate reservoirs, mostly weakly cemented silty sandstones, are prone to landslides during extraction. Prior studies have inadequately considered factors such as dynamic decomposition of hydrates during depressurization, and the impacts on the reservoir's geomechanical...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35484-MS
... assurance aspects that are beyond the standard welltest playbook. Several failures and operational issues related to flow assurance such as the plugging of pipelines and/or tubing by wax or hydrates have hindered the interpretability of data, compromised well test objectives, significantly increased...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35246-MS
... Abstract Given the challenges posed by CO 2 's distinct thermophysical properties (i.e., its expansive behavior and attendant risks of causing hydrate, dry ice, and/or water ice formation), a dynamic multiphase flow simulator is employed to evaluate the effectiveness and suitability of using...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2024
Paper Number: OTC-35321-MS
... Abstract Hydrates are one of the most serious issues in deepwater production systems. Remediation operations are usually time-consuming and expensive, especially if the low-cost methods using the existing infrastructure e.g. injecting thermodynamic hydrate inhibitor (THI) at the vicinity...

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