Five wells with a history of paraffin related problems were selected for treatment with a commercially available bacteria product∙
Wax deposition was so severe in these wells that production was often halted due to stuck rods. Wax deposition was controlled by hot oiling. Some wells required hot oiling as often as twice a week.
The produced oil from each of the wells was characterized for paraffin content. Produced water from each well was also characterized and closely monitored for potential adverse affects from the paraffin treating bacteria.
Paraffin related treating costs for the wells was reduced by the use of bacteria. Production down time due to hot oiling was also reduced. The application of the bacteria to control paraffin related problems can be beneficial; however, there are some potential limitations to bacteria applications.