• Natural Gas - Arabic

    What are Hydrates – Arabic

    ما هي الهيدرات Hydrates وما هي طرق معالجتها؟ الهيدرات Hydrates  وهي أشبه بالثلج الوسخ ، حيث تتكون من مزيج من الماء مع بعض جزيئات الهيدروكاربونات الخفيفة (غالباً ما تكون الميثان والأيثان وثاني أوكسيد الكاربون) وهي بلورات غير محكمة وتسمى هذه المادة الكيمياوية (cathrates) . ويجب توافر ثلاثة شروط لتكون الهيدرات: 1. درجة الحرارة والضغط المناسبين ، حيث أنه يتكون في درجات الحرارة الواطئة + الضغوط العالية. حيث إن أنخفاض درجة حرارة الغاز الى أقل من درجة الندى Dew Point  فأن هذا يؤدي الى تكون (الماء الحر). أن درجة الحرارة المُثلى لتكوين الهيدرات تعتمد على مكونات الغاز. 2. يجب توافر 3 مواد أساسية لتكوين الهيدرات وهي (الميثان – الأيثان – ثاني أوكسيد…

  • Dehydration
    Natural Gas - English

    Natural Gas Dehydration Part.1

    Definition of Natural Gas Dehydration  the removal of water from natural gas by lowering the dew point temperature of the natural gas    Objective: To prepare natural gas for sale, its undesirable components (water, H2S and CO2) must be removed. Most natural gas contains substantial amounts of water vapor due to the presence of connate water in the reservoir rock. At reservoir pressure and temperature, gas is saturated with water vapor. Removal of this water is necessary for sales specifications or cryogenic gas processing. Primary concerns in surface facilities are determining the: – Water content of the gas. – Conditions under which hydrates will form. Liquid water can form hydrates,…

  • hydrate
    Natural Gas - English

    Natural Gas Hydrates

    what are Hydrates Introduction to Hydrate Natural gas hydrates are ice-like materials formed under low temperature and high pressure conditions. Natural gas hydrates consist of water molecules interconnected through hydrogen bonds which create an open structural lattice that has the ability to encage smaller hydrocarbons from natural gas or liquid hydrocarbons as guest molecules. Interest in natural gas hydrates as a potential energy resource has grown significantly in recent years as awareness of the volumes of recoverable gas becomes more focused. The size of this resource has significant implications for worldwide energy supplies should it become technically and economically viable to produce. Although great efforts are being made, there are…

  • dehydration
    Natural Gas - English

    Natural Gas Dehydration Part.2

    PROCESS DESCRIPTION OF GAS DEHYDRATION The principle of glycol dehydration is contacting a natural gas stream with a hygroscopic liquid which has a greater affinity for the water vapor than does the gas. Contactor pressure is subject to economic evaluation usually influenced by water removal duty, required water dewpoint, vessel diameter and wall thickness. After contacting the gas, the water-rich glycol is regenerated by heating at approximately atmospheric pressure to a temperature high enough to drive off virtually all the absorbed water. The regenerated glycol is then cooled and recirculated back to the contactor. Triethylene glycol (TEG) is the most commonly used dehydration liquid and is the assumed glycol type…