Tosum up, as a consequence of corrosion, oil and gas facilities are lost togetherwith materials, resources, time, and reputation of company when problem is notsolved in time. If all necessary procedures are realized properly, the rate andfrequency of corrosion will be decreased.
It is clear that risk always exists,however, through realizing some operations it is possible to reduce or minimizethe risk so in order to obtain considerable results all necessary steps shouldbe carefully taken. As discussed earlier corrosion is caused by many reasons suchas environmental, mechanical factors, erosion, fluid flow regime and corrosivesubstances and elements in fluid content which are inexorable in petroleumindustry. With analyzing all factors, these suggestions below can be given toreduce corrosion rate or detect in time:· Engineering design, checking and testingfacilities from time to time are standing above any other responsibility.
Asmentioned through discussion, the location of pipeline should be considered interms of physical and chemical characteristics then suitable material andcoating should be selected. · Fluidcontent, temperature and pressure should be kept in the control on a day to daybasis. In order to decrease the corrosion rate due to cavitation caused byturbulent regime pipe fittings should be designed so that minimum elbows areused and in long pipeline the direction angle of the line should be small thatdue to high speeds cavitation and coating erosion can be reduced in the suddenbending sides.· In Bibiheybet oil field almost no acidwash had been realized through production period and finally all productionstring pulled and pipes are replaced. The author can suggest that afterformation of siderite the thickness of scale should be kept in balance throughacid wash and not allowing mechanical operations. In this way pitting andscratching will be avoided which deteriorates pipe, at the same time scaleformation, also helps to prevent corrosion, for example, siderite formation onsurface of pipeline decreases corrosion rate.
· To reduce erosion corrosion due to sandproduction sand screens with suitable mesh size should be chosen to preventsand production together with desander and desilters during drilling andtransportation of fluid operation. · As cathodic protection is the cheapestoption it is more preferable to apply this for protection of oil tankers orstorage tanks.