The Right Approach Can Counter The Effects of Near-Wellbore Damage
(Jeremy Viscomi, The American Oil and Gas Reporter, November, 2015)

“Just about every well, at one time or another, is going to suffer the effects of wellbore damage. Near-wellbore damage generally is defined as any restriction to flow capacity.

These restrictions often are caused by a reduction in near-wellbore permeability, most often from perforating debris or mud filtrate caused by the drilling process.

Not surprisingly, this damage can dramatically impact a well’s overall production.

How an operator or service company chooses to address this issue can dictate over-all performance over the life of the well.”

George King Comments on Near-wellbore damage
(Jeremy Viscomi, The American Oil and Gas Reporter, November, 2015)

“The effect of the damage, the type of damage, severity of plugging, the depth, and the  ability to prevent, remove, or even bypass the damage are all key factors in an operator’s strategy to address near-wellbore damage.

King asserts that shallow damage is the most common and that it takes a significant amount of damage to reduce production drastically.

He says the problem is that generally, the highest permeability zones are the easiest to damage and also are the ones that will cause the greatest reduction in production.

How one approaches cleanup can be a most useful tool in addressing the issue of near-wellbore damage.”