Clearly, everyone who works in oil and gas field knows that logging operations are very important to produce our oil and gas without any risks and undesirable incidents. There are many different purposes to use logging in our well. For instance, one of them is to find out our production point in oil and gas well. After the logging operation, the report paper of logging operation shows us where our resource is located. According to this, we can decide how many meters our well deep. Other reason using log is to determine curing time of cement. After running casing, immediately, cementing engineers come to the field to pump the cement to free space between the casings or casing and wellbore. These are different operations that’s why we use different kind of the log to analyze. Therefore, cement logging also is important. In this thesis, we are going to analyze and observe real cases and results of the logging operations in oil and gas fields. Mainly, in production zones logging operations should be done because undesirable incidents and risks are more than other zones. Currently, we use the most modern logging in our fields to ensure that everything is okay, and we can continue other operations. Production zone which is perforated is more dangerous zone because perforated zones may be banned, and it may cause well lost. As a result, production engineers lost their production zone, company is out of pocket and loss well structure. Learning about logs and logging operations and how to use with them helps to improve technical operations, also we don’t waste time with undesirable accidents, safety factor increases in the field. The most main thing in the oil and gas field is safety. Improving our capability and knowledge about using logs to maximize safety in the platform
