SHAHRAM SEDIGHI SHIRI - PhD Student Materials, Shiraz University,
MOHAMMAD SEDIGHI SHIRI - Master Mechanical, Master of National Iranian Drilling Company,

Damage or failure due to corrosion phenomena, one of the major causes of failure is the failure of drilling pipes. This phenomenon has occurred in most rigs. Any damage to the industry imposes enormous damage. In this regard, an extensive research in the field of corrosion in the oil well drilling industry. Research and analysis conducted in four papers have been collected. In this article the expression of research and analysis on issues such as Practical suggestions for reducing failures caused by hydrogen sulfide environment, Metallurgical and chemical properties of drilling pipes, flexibility, toughness, corrosion resistance the cloud, drill pipes used in dry environments, Categories drilling pipes, tubes, SS, SU tubes and the bacteria. In this paper, all the results were compared with experimental samples.

hydrogen sulfur, drilling pipes, flexibility, toughness, bacteria