Abstract:
Dun oil field is an important income source for the Indonesian government. In the oil
industry, built up of scale and corrosion of the production equipment can hamper distribution of
crude oil. This research aim at studying the factors that effect the formation of scale, specially
due to acid levels in relation to alkalinity. Analysis was done using the Stiff Davis method using
water media, to predict the probability level of scale formation. Samples were obtained from 4
different production wells, namely well A, B, C and D. Water from the production wells were
separated from the oil and dirt using flocculants. Water content was analyzed 1, 4, 21, and 28
hours after sampling. Research results showed that there was no significant difference for the
scale index value at these different times for production well A, with values between 0.67 to
0.69, and a difference of 0.02. For well B the values obtained were between 1.32 to 1.35, with a
difference of 0.03. For oil well C and D the values were 0.80-0.82 and 1.23-1.22 with difference
of 0.02 and 0.01 respectively.
