Gas hydrates are a well-known problem in the oil and gas industry and cost millions of dollars in production and transmission pipelines. In the oil and gas industry, gas hydrates are a serious problem in production and gas-transmission pipelines because they plug pipelines and process equipment. By applying heat, insulating the pipelines, and using chemical additives as inhibitors, we can keep the operating conditions out of the hydrate-formation region.
To prevent this problem, it is important to predict the temperature and pressure under which gas hydrates will form.
1- Using the GPA graphs. One of the graphs is provided below
Figure 1: Water content of natural gas. Source: reproduction courtesy Gas Processors Association
2- Use the Aspen hysys, Olga, .. softwares to calculate the hydrate temperature: HYSYS has a utility for hydrate formation temperature prediction for the corresponding gas composition, pressure & temperature.
3- Use of developed correlations
a. The Hammerschmidt equation: it is a widely accepted equation for estimating hydrate inhibitior injection rates given the hydrate depresion temperature.
b. More equations are provided https://etd.tamu.edu/bitstream/handle/1969.1/4220/AMERIPOUR-THESIS.pdf?sequence=4
Please share with us any other methods.