Gas hydrate deposits are generally found in the shallow deepwater regions and permafrost regions. The presence of water, methane, and thermodynamic conditions (low temperature and high pressure) is critical for gas hydrate accumulation. Disturbing thermodynamic conditions such as depressurizing and thermal treatment are the primary processes for gas hydrate dissociation. In this study, we investigate the stability of a shallow depth gas hydrate layer in the conditions of conventional gas production from a newly discovered deep gas field, Sakarya gas field, Western Black Sea. The study focuses on thermal conduction generated by conventional gas production across the wellbore profile along the gas hydrate section. The study includes wellbore simulations using the academic version of PIPESIM to obtain temperature and pressure profiles across the wellbore and numerical simulations for thermal transition for various cases in the hydrate zone using TOUGH + HYDRATE v.1.5 (T + H). The temperature elevation in the hydrate zone was found to change between 19 K and 25 K. The critical temperature elevation for hydrate dissociation and hydrate dissociation front were determined using the simulations, which might cause wellbore stability problems in the long term. We increase the impact of the study by suggesting appropriate solutions to minimize the adverse effects of production from the hot and deep conventional gas on gas hydrate stability found at shallower depths.

天然气水合物矿床一般分布在浅层深水区和多年冻土区。水、甲烷和热力学条件（低温和高压）的存在是天然气水合物聚集的关键。诸如减压和热处理等扰乱的热力学条件是天然气水合物分解的主要过程。在这项研究中，我们研究了在新发现的深部气田——西黑海萨卡里亚气田的常规天然气生产条件下浅层天然气水合物层的稳定性。该研究的重点是传统天然气生产沿天然气水合物剖面沿井筒剖面产生的热传导。该研究包括使用 PIPESIM 的学术版本进行井筒模拟以获得整个井筒的温度和压力剖面，以及使用 TOUGH + HYDRATE v.1.5 (T + H) 对水合物带中各种情况的热转变进行数值模拟。发现水合物区的温度升高在 19 K 和 25 K 之间变化。使用模拟确定了水合物分解和水合物分解前沿的临界温度升高，这可能会导致长期井筒稳定性问题。我们通过提出适当的解决方案来增加研究的影响，以尽量减少热和深层常规天然气生产对较浅深度发现的天然气水合物稳定性的不利影响。