页岩气集输过程水合物生成条件预测方法研究

Study on Prediction Methods of Hydrate Formation Conditions in Shale Gas Gathering and Transferring Process

页岩气与集输过程中携带或产生的游离水,在适当温度和压力条件下将会生成天然气水合物。水合物一旦生成,可能会堵塞集输管线或损坏生产设备,严重影响集输系统的安全运行。通过酸性气体图、平衡常数法、波诺马列夫法和回归公式法预测页岩I区块天然气水合物生成条件,为预防页岩气集输过程中生成水合物提供理论指导和技术支持。

Under the appropriate conditions of temperature and pressure, Shale gas will generate gas hydrate with free water carried or generated in gathering and transferring process. Once hydrate is generated, it may block the gathering line or damage to the equipments, which will seriously affect the safe operation of the gathering system. In this paper, acid gas figure, equilibrium constant method, Bono maleev method and regression formula method were used to predict gas hydrate formation conditions of Shale Block I,which could provide theoretical guidance and technical support for preventing hydrate generation in shale gas gathering and transferring process,.