• hydrate inhibition injection
    Natural Gas - English

    Hydrate inhibitor injection system

    Hydrate Inhibitors The use of inhibitors is a common practice adopted in gas fields. The reasons are that the well fluids are almost always water saturated and at a rather high pressure. Therefore the cooling due to the fluid throttling at the wellhead choke valves and along the pipeline up to the oil or gas center make it necessary to check if any risk of hydrate formation is to be considered. And, very often, measures to avoid hydrates are to be taken. Generally,   inhibitors are used and the most commonly used inhibitors are: ethylene glycol (EG), diethylene (DEG) and methanol (MeOH). These compounds are injected at the wellhead. At the end of the pipeline,…

  • gas dehydration
    Natural Gas - English

    teg dehydration operation problems and solutions

       Definition of Natural Gas Dehydration: Removal of water from natural gas by lowering the dew point temperature of the natural gas. Dew point ..is the temperature to which a gas must be cooled in order to become saturated with water. Note that the water content is directly proportional to the dew point … it is recommended to keep dew point as minimum as possible. Presence of Water in Natural Gas Natural gas contains water as: In liquid form (free water) In vapor form (dissolved) Water present At source from reservoir (associated water with gas) As a result of sweetening in aqueous solution. It is necessary to reduce and control…

  • natural gas storage
    Natural Gas - English

    Natural Gas Processing

        Necessary Conditions and Goals of Processing : The types of treatments carried out on gas streams usually are: separation; – heating; – inhibition. – dehydration; – liquid hydrocarbon recovery; – sweetening. Treatment needs and objectives: The first gas treatments are temporary. Their aim is to prevent the hydrates formation and they’re classified as follows: – separation of free water; – increase in the temperature of gas above that of hydrate formation; – inhibitors injection to prevent hydrate formation. Elimination of free water The elimination of free water in the gas is carried out through separators that are installed at the well-head and at the entrance of the treatment stations. This treatment…

  • hydrate
    Natural Gas - English

    what are Hydrates and what is Hydrate Prevention

        Hydrates Hydrates are crystallized, compact, porous and rather light mass, similar to compressed snow. They are made of water, hydrocarbons, H2S and CO2. Unlike ice, hydrates have an unusual characteristic: they form at a temperature that is above water freezing point . For instance, they can form at 20 °C at particular pressures. When they are exposed to air, they dissolve chugging and fizzing because of the gas that is more or less slowly freed according to the surrounding temperature. When they are lit in the air, they can slowly and completely burn, until they leave a small residue of water. This does not represent the quantity of water they actually contain, as part…

  • Gas Dehydration Books

    in this section you will find a collection of books about: – natural gas dehydration. – Tri Ethylene Glycol. – Hydrate and Hydrate Inhibition. – Acid Gas Treatment. Hydrate & Dehydration Download Link 1       Download Link 2 Process Gas Dehydration  from Total download Natural Gas Dehydration with TEG download Glycol Dehydration Units Download Link 1        Download Link 2 Gas Dehydration Field Manual Download Link Glycol-type gas dehydration and hydrate inhibition systems Download Link 1         Download Link 2 State of Art in Gas Treating Download Link 1      Download Link 2 Gas Dehydration Using Glycol Download Link 1         Download Link…

  • natural gas
    Natural Gas - English

    Natural Gas Industry

    Natural Gas Terminology: Reservoir: Porous & permeable underground formation containing an individual bank of H.C.s confined by impermeable rock or water barriers characterized by a single natural pressure system. read also What is Natural Gas Field: Area of one or more reservoirs related to same structural feature. Pool: Contains one or more reservoirs in isolated structures. Wells can be classified as gas wells, condensate wells, and oil wells. Gas wells: Wells with producing gas-oil ration (GOR)>100,000 scf/stb. Condensate wells: Producing GOR < 100,000 scf/stb but > 5,000 scf/stb. Oil wells: Wells with producing GOR < 5,000 scf/stb Because NG is petroleum in a gaseous state, it is always accompanied by oil…