Oilfield Glossary
The differance between Differential sticking and Mechanical stucking
The difference between mechanical stuck and differential stuck This question was asked in one of the famous oil companies an : the answers were as follows Di…
Drilling problems
What is this? How can we prevent this from happening again?
Sometimes we need a lot of interview questions to be always ready for the interview This exam was in one of the personal interviews of one of the oil companies,and we collected many res…
Drilling Equipment
The Effect of Weighting Materials on Cement
Attapulgite Attapulgite belongs to a quite different family of the clay minerals Attapulgite-based muds have excellent viscosity and yield strength and retain these pr…
Drilling Equipment
The Effect of Weighting Materials on mud
Barite Barite (or barytes) is barium sulphate, BaSO4 and it is the most commonly used weighting material in the drilling industry. Barium sulphate has a specific gravity in the range of 4.20 - 4.60. The specific gra…
Drilling Equipment
WELL CONTROL SYSTEM
Blowout preventers (BOPs) Blowout preventers (BOPs), in conjunction with other equipment and techniques, are used to close the well in and allow the crew to control a kick before it becomes a blowout. Blowout preventer equipment sh…
Oilfield Glossary
Handling Tools for Drilling
Spinning Chain A relatively short length of chain attached to the tong pull chain on the manual tongs used to make up drill pipe. The spinning chain is attached to the pull chain so that a crew member can wrap the spinning cha…
Oilfield Glossary
Bottom hole assembly
Float Collars A float collar is a one way valve placed at one or two joints above the shoe. The float collar provides the same functions as a float shoe by preventing fluid back flow into the casing: mud backflow during running in…