Determination of Oil and Grease in Produced Water and their Effects on Surrounding Soils

Abstract

This study was conducted to determine the concentrations of oil and grease in produced water from Sadqal oil
and gas field in Fateh Jang, Punjab, Pakistan and their impact on surrounding soil. Produced water samples were collected
from various locations including inlet of pond A, pond A, inlet of pond B, pond B, outlet of pond B and external stream.
Concentration of oil and grease from various locations showed that all values were higher than the permissible limit of
Pakistan Environmental Protection Agency (Pak-EPA). Soil samples were collected from the same location points of the
produced water. In soil samples oil and grease were found in high amounts due to continuous discharge of produced
water in that area. Therefore, produced water should be treated properly before being released into the surrounding
environment and Pak-EPA should have regular monitoring programs.