Types of Storage Tanks

Every facility involved in the production of petroleum and related products reamers some type of storage. Technical Data used in the field explained in petroleum courses in Rawalpindi. This chapter discusses the types of storage commonly used and also provides general guidelines to aid selection of the proper type of storage for a particular application. References to various codes. standards. and recommended practices supplement the material provided in this chapter. Manufacturers also should be consulted for specific design information on a particular type of storage.

During the early day\ of oil production, the method of storing was almost exclusively white-pine wooden tanks. which were followed by cypress tanks. and then redwood tanks. However. because of the constant and steep rise in the cost of redwood lumber and the diminution of skilled erectors required, the installation of new wooden tanks is nearly nonexistent. The bolted-steel tank was developed next and virtually replaced the wooden tank. Some more details of petroleum courses in rawalpindi are as under.

Bolted tanks are designed and furnished as segmental elcmcntc assembled on location to provide complete vertical, cylindrical. aboveground. closed- and open-top steel storage tanks. Standard API bolted tanks are available in nominal capacities of 100 to 10,000 bbl, and are designed for approximately atmospheric internal pressures. Bolted tanks offer the advantage of being easily transported to desired locations and erected by hand. To meet changing requirements for capacity of storage, bolted tanks can be easily dismantled and re-erected at new locations.

If a tank develops a hole from corrosion or becomes damaged. a single sheet or more may be replaced. A complete tank bottom may bc replaced in the field without dismantling the tank. Also. a section may be removed from the tank. a new connection installed in the sheet. and the section replaced without danger. This is not true of any other type of steel construction. No special  (cranes. etc.) is required for the correction of bolted tanks. These tanks are erect& by no specialized crews using hand tools and usually an impact wrench. Bolted tanks are available with painted. galvanized. And special coatings. including factory-baked coatings. Painting on both sides of the sheets during fabrication gives the inside of the tank some corrosion protection. Galvanizing the sheets and all tank parts by the “hot-dip” process or applying a factory-baked coating affords high corrosion protection. The component parts of a typical bolted tank are shown in Fig. 1 I. I and partial API specifications. TSK Training for Skills and Knowledge is the best institute in Rawalpindi Islamabad for Pakistani Students who wants to join oil field after petroleum courses in Islamabad.