Table 4 Description of the last three pumps used in the candidate well.

From: Ensemble learning for prediction of inorganic scale formation: A case study in Oman

Reservoir

Run-life (days)

Reported failure

Root cause

Observations

Shuaiba

633

Downhole issue

Inorganic scale

Deposited solids and scale in sucker rod pumps

Shuaiba

150

Downhole issue

Inorganic scale

Inorganic scale in sucker rod pumps

Shuaiba

116

Downhole issue

Inorganic scale

A sucker rod pump fully covered with inorganic scale