![]() ![]() However, if in the context of water vapor dew point, a buyer says “I want 30-degree gas”, they aren’t talking about the physical temperature of the gas they are talking about the dew point. If that number is above 7, you need to adjust your temperature and/or pressure accordingly. Find your site’s operating pressure and temperature and identify the water content level where they intersect. This tool below can help you identify the temperature and pressure required to achieve that specific water saturation level. Either way, we’re talking about how saturated the gas is with water.įor example, a producer may say they want 7 pounds of water in their gas. One thing that can sometimes be confusing in our industry is that water vapor dew point is often communicated in terms of pounds of water or temperature. In the North American natural gas industry, water content is stated in terms of pounds of moisture per million standard cubic feet (MMSCF). Keeping the gas stream above the water vapor dew point prevents condensed water from forming, which may lead to corrosion or ice blocks in piping, valves, or vessels.ĭehydration refers to removing water vapor from a gas to lower the gas stream’s dew point.Ī common dehydration sales contract in the southern United States specifies 7 lb/MMSCFD in northern United States it's typically 2-4 lb/MMSCFD. It is used as a means of measuring the water vapor content of natural gas. The dew point is the temperature and pressure at which the first drop of water vapor condenses into a liquid. Both principles rely on temperature and pressure. While hydrocarbon dew point relates to when hydrocarbons condense, water vapor dew point relates to when water vapor in the gas mixture will condense. But another important data point is water vapor dew point. The term dew point often refers to hydrocarbon dew point. Hydrocarbon dew point vs water vapor dew point in natural gas: ![]() The dew point will be specified in contracts from producers through processing, transmission, and distribution companies to end users.Ī producer will apply this principle to pull out different elements of natural gas during processing.įor example, if a producer needs to pull out Benzene, which is used to make items like plastic cups and resins, they must get their operating temperature to 176.2° F to extract that component. It’s a term that is used as a quality parameter. ![]() In the gas industry, “hydrocarbon dew point” is often referred to as just “dew point”. Hydrocarbon Dew Point Importance to Oil & Gas Industry They may also need to be removed for safety reasons. Sometimes it’s worthwhile to isolate and sell these other hydrocarbons depending on how much there is and their value. The formed liquid, or condensate, exists as a liquid below the dew point temperature, but above the dew point the liquid is a gaseous component. Hydrocarbon dew point is the temperature at which hydrocarbon components of natural gas begin to change their state of matter, from the gas phase into the liquid phase or vice versa. These hydrocarbons, like other liquids, go back and forth between liquid and vapor, depending on pressures and temperatures. While it is primarily methane, it will often contain other hydrocarbons such as propane, butane, pentane, and hexane. Untreated natural gas is a mixture of many different hydrocarbon gases. In this blog we'll explain these two terms and their importance in natural gas production. Hydrocarbon dew point (HDP or HCDP) and water vapor dew point have significant effects on processes in the oil and gas industry. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |