Abstract:
Oil and gas exploration activities always produce follow-up materials that is produced
water with the number of millions of barrels per day. Oil field produced water has a
chemical composition with different concentrations depending on the geographical
location, the depth of the formation, the method of oil lifting, and the age of oil production
wells. The abundant production of produced water by the oil and gas industry makes the
produced water into one of the potential water resources to be utilized by the community
for daily needs, but now the produced water is still considered as industrial waste that is
harmful to humans and can pollute the environment. To see the potential reuse of produced
water by the community, a laboratory testing was conducted to characterize chemical
composition of oil field produced water in Minas area, Siak Regency, Riau Province with
parameters set forth in Government Regulation No. 82 of 2001 on the Management of
Water Quality and Control of Water Pollution for water class 1 (drinking water). The
laboratory testing parameters performed are grouped by physical, inorganic chemistry,
radioactivity, and organic chemistry including pesticides. This study also includes
laboratory testing for samples from drinking water refill retail and water well located in
Minas community area to analyze the quality of drinking water source in community as
well as blank for quality of produced water.
The result of laboratory tests shows for samples from produced water have 17 of 46
parameters (37%) still not meet limit of standard water class 1. While the result for sample
from drinking water refill retail has 4 of 46 parameters (9%) not meet limit of standard
class 1 and sample from community well has 3 of 46 parameters (6%) not meet limit of
standard class 1.
