5 Questions
What is the objective of gas processing?
To separate all hydrocarbons and impurities from natural gas for transportation and use purposes
Where does associated gas come from?
It is found in association with crude oil reservoirs
What are the main impurities commonly found in raw natural gas?
Carbon dioxide, hydrogen sulfide, and helium
Why is water removal important in natural gas processing?
To prevent pipeline corrosion and hydrate formation
What is the impact of nitrogen removal on natural gas energy content and combustion?
It decreases the energy content and deteriorates combustion efficiency
Study Notes
- Natural gas processing is essential for separating impurities and hydrocarbons from raw natural gas for transportation and use.
- Natural gas can originate from oil wells (associated gas), gas wells (non-associated gas), or condensate wells (non-associated gas).
- Associated gas is found in association with crude oil reservoirs, often occurring in the same underground formations as oil deposits.
- Raw natural gas, obtained from wells, is impure and needs to be purified before transportation due to major pipeline restrictions.
- Impurities in raw natural gas include water, liquids, and nitrogen, which are removed through various methods like water removal, liquid removal, nitrogen removal, membranes, adsorption, and cryogenic processes.
- Water removal from natural gas is crucial to maintain natural gas quality standards and prevent corrosion. This is achieved through methods like dehydration, desiccant dehydration, or mechanical refrigeration.
- Nitrogen removal from natural gas is essential to boost energy content and improve combustion efficiency. This is typically achieved using pressure-swing adsorption (PSA) units.
- NGLs (natural gas liquids) are often extracted during the gas processing stage for further refining and commercial use.
- Natural gas processing plays a vital role in ensuring the cleanliness and safety of natural gas for various applications, such as heating, electricity generation, and industrial processes.
Test your knowledge of gas processing with this quiz covering topics such as gas streams from crude oil, natural gas, impurity removal methods, and gas quality standards. Learn about the need for gas processing, the composition of raw natural gas, natural gas liquids (NGLs), and common impurities.
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