The world of today is powered by petroleum fuels. These fuels are mined from various places around the world. The Middle East is one of the regions that is well-known for its large deposits of oil resources. Several economies in this region rely on oil in large part. Other countries that have huge deposit of oil resources are the United States, Russia, and Africa. Here are facts regarding Paraffin Removal Oil Wells.
There many challenges involved in the process of removing oil from its deposits. Formation of organic deposits inside and around the wellbore is among one of the most occurring problems. The deposits can be grouped into two major groups. The two are asphaltenes and paraffin. These deposits occur in the tubing or pores of reservoir rocks.
Three main categories of compounds are found in crude oil. Tthese compounds include aromatic hydrocarbons, asphaltenes and resins, and saturated hydrocarbons also known as paraffin. Aromatic hydrocarbons and paraffin make the highest percentage whereas only a small percentage is made by asphaltenes and resins. On the contrary, more asphaltenes and resins than aromatic hydrocarbons and paraffin are contained in tars, bitumens, and many other degraded crude oils.
Paraffins are alkanes of high-molecular weight that build up in feed lines, wellbores and other components and spaces in boring setups. The deposits usually increase in thickness over time, and when they are grown to large sizes, they can lead to significant reduction in oil production. When this level is reached, it is important for some remedial steps to be taken to restore full production.
Usually, deposits range in toughness from very hard deposits to deposits that are brittle. These deposits normally get firmer and bigger as the molecular weight of the paraffin rises. In most instances, asphaltenes and paraffins occur separately although there are situations where they occur together. The loss of solubility of the crude oil is what causes the deposition. Several factors like change in temperature and pressure and changes in composition of the oils cause the loss of solubility.
There are various techniques used in removal of paraffins. To make the removal process of paraffins faster and easier, new techniques have been invented in the course of time. As such, today there exist many methods. These techniques can be grouped into 3 major groups. The three include use of heat for melting and removing the wax, use of chemical solvents, and mechanical removal.
Use of scrappers and knives to remove wax deposits in wellbores fall under mechanical methods. The efficiency level of mechanical methods varies a lot depending on factors surrounding the oil deposit. But, it is clear that mechanical methods are generally inexpensive to apply. As a result, most companies use them on their oil fields.
The use of solvents is also commonly employed. Here, crude oil is applied on the walls of the wellbore to remove deposits of paraffins. The crude oils used in this process are heated to a temperature of 300 degrees fareinheit. The hot oils is then injected or fed into the wellbore under gravity. The hot solvent dissolved the wax before being produced back to the surface.
There many challenges involved in the process of removing oil from its deposits. Formation of organic deposits inside and around the wellbore is among one of the most occurring problems. The deposits can be grouped into two major groups. The two are asphaltenes and paraffin. These deposits occur in the tubing or pores of reservoir rocks.
Three main categories of compounds are found in crude oil. Tthese compounds include aromatic hydrocarbons, asphaltenes and resins, and saturated hydrocarbons also known as paraffin. Aromatic hydrocarbons and paraffin make the highest percentage whereas only a small percentage is made by asphaltenes and resins. On the contrary, more asphaltenes and resins than aromatic hydrocarbons and paraffin are contained in tars, bitumens, and many other degraded crude oils.
Paraffins are alkanes of high-molecular weight that build up in feed lines, wellbores and other components and spaces in boring setups. The deposits usually increase in thickness over time, and when they are grown to large sizes, they can lead to significant reduction in oil production. When this level is reached, it is important for some remedial steps to be taken to restore full production.
Usually, deposits range in toughness from very hard deposits to deposits that are brittle. These deposits normally get firmer and bigger as the molecular weight of the paraffin rises. In most instances, asphaltenes and paraffins occur separately although there are situations where they occur together. The loss of solubility of the crude oil is what causes the deposition. Several factors like change in temperature and pressure and changes in composition of the oils cause the loss of solubility.
There are various techniques used in removal of paraffins. To make the removal process of paraffins faster and easier, new techniques have been invented in the course of time. As such, today there exist many methods. These techniques can be grouped into 3 major groups. The three include use of heat for melting and removing the wax, use of chemical solvents, and mechanical removal.
Use of scrappers and knives to remove wax deposits in wellbores fall under mechanical methods. The efficiency level of mechanical methods varies a lot depending on factors surrounding the oil deposit. But, it is clear that mechanical methods are generally inexpensive to apply. As a result, most companies use them on their oil fields.
The use of solvents is also commonly employed. Here, crude oil is applied on the walls of the wellbore to remove deposits of paraffins. The crude oils used in this process are heated to a temperature of 300 degrees fareinheit. The hot oils is then injected or fed into the wellbore under gravity. The hot solvent dissolved the wax before being produced back to the surface.
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