Study on Dynamic Adsorption for BaS04 Inorganic Scaling

The technology to prevent the deposition of barium sulphate is still becoming a major
challenge nowadays despite the modem equipment applied in the petroleum industry.
Barium sulphate is a common downhole scale type in oil and gas wells with sea water
that can reduce wells productivity. Scale inhibitor (SI) chemical treatment is the most
common technique which has been applied successfully in oilfields over many years in
order to prevent the formation of mineral scale. However, guidelines have been put in
place to restrict the use and discharge of potentially toxic chemicals into the sea.
The main objectives of this project are to analyze the two common scale inhibitors i.e.
phosphonate, DTPMPA and polyaspartate, PASP and to study PASP competitiveness as
a green scale inhibitor by observing samples morphology using Scanning Electron
Microscopy, SEM and its permeability using Benchtop Permeability System, BPS.
Several papers were referred, namely SPE 87453 and SPE 29002 as well as from
Journal of Petroleum Science 6 and Engineering by Amer Badr Bin Merdhah et al7
(2010). Based on experiments conducted, the two Sis are compared and discussed.