دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a method of rotary drilling that uses compressed air as the circulation medium. The conventional method of removing cuttings from the wellbore is to use a flow of water or drilling mud. Compressed air removes the cuttings with equal or greater efficiency. The rate of penetration is usually increased considerably when air drilling is used;however, a principal problem in air drilling is the penetration of formations containing water, since the entry of water into the system reduces the ability of the air to remove the cuttings.

n: A method of rotary drilling that uses compressed air as the circulating medium.

drilling with air instead of drilling mud (requires diverters at the surface to handle cuttings and formation fluids).

n: the discharge pipe from a wen being drilled by air drilling. The blooey line is used to conduct the air or gas used for circulation away from the rig to reduce the fire hazard as well as to transport the cuttings a suitable distance from the wen. See air drilling.

n: The appliance romoving cuttings carried by air in compressed air drilling.

n: a kind of drilling in which the air is used as the flushing medium without any liquid substance

n: there is no water coming from the layer during dry air drilling

n: the string is compose by concentric kelly and concentric pipe ,used to inverse circulation the fluid in air drilling

n: an equipment used to depart the bergmeal from the airflow during air drilling

n: the powered or dusty bergmeal returning togther with the airflow in air drilling

n: refer todry air drilling