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首页> 外文会议>Proceedings of SUT International Conference on Subsea Technology and Deepwater Engineering >Gas Hydrate Problems during Deep Water Gas Well Test
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Gas Hydrate Problems during Deep Water Gas Well Test

机译：深水气井测试中的天然气水合物问题

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Gas hydrate is an essential problem which must be considered in deepwater well testing.Pressure and Temperature are two key factors of hydrate formation.Based on deepwater testing procedure, the flowing and heat transfer equations were established on flowing test and shut in conditions, and the flowing was also simulated at throttle position.Temperature and pressure distribution intesting pipes were obtained.On this basis, the hydrate formation sections in pipes were predicted.The results indicated that at the stage of circulating test, gas production is an important factor to hydrate formation, the less output, the larger hydrate generation region, yet near the throttle in pipes, hydrate is easily formed at large production due to the throttle effect.Another indication of the result is that serious hydrate forming problem may take place as the high pressure and low temperature at the stage of shut in.Based on the results, three inhibitor injection positions were put forwarded: mud line, 650 meters below mud line and choke positions.
机译：天然气水合物是深水井测试中必须考虑的一个基本问题。压力和温度是水合物形成的两个关键因素。在深水测试程序的基础上，建立了流动测试和在一定条件下关闭的流动和传热方程，在节流阀位置也模拟了流动，得到了温度和压力分布测试管。在此基础上，预测了管中的水合物形成截面。结果表明，在循环试验阶段，产气是影响水合物形成的重要因素。 ，输出越少，水合物的产生区域越大，但仍在管道中的节流阀附近，由于节流效应，水合物很容易在大批量生产时形成。另外一个结果表明，高压和高压会导致严重的水合物形成问题。在关闭状态下温度较低。根据结果，提出了三种抑制剂注入位置：泥浆e，在泥线和窒息位置下方650米处。

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