Abstract
A series of static adsorption/precipitation tests has been carried out to examine the behaviour of Diethylenetriamine Penta Methylene Phosphonic (DETPMP), a commonly used commercial scale inhibitor (SI), when in contact with brine and calcium carbonate (CaCO3). These tests are carried out at pH 2 and pH 4 and at a range of DETPMP concentrations from 0ppm to 5000 ppm. In these tests, the addition of disaggregated CaCO3 to the brine/SI mixture was accompanied by a rise in the pH and a commensurate precipitation of a DETPMP-Ca complex. Apparent adsorption displayed a common 2:1 trend indicating that no adsorption took place, only precipitation. These results changed somewhat when selected divalents (Ca and Mg) were removed from the brine.
| Original language | English |
|---|---|
| Title of host publication | SPE International Conference and Exhibition on Oilfield Scale 2014 |
| Place of Publication | Richardson, Texas |
| Publisher | Society of Petroleum Engineers |
| Pages | 408-419 |
| Number of pages | 12 |
| ISBN (Electronic) | 9781613993255 |
| ISBN (Print) | 9781632665911 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | SPE International Oilfield Scale Conference and Exhibition 2014 - Aberdeen, United Kingdom Duration: 14 May 2014 → 15 May 2014 |
Conference
| Conference | SPE International Oilfield Scale Conference and Exhibition 2014 |
|---|---|
| Country/Territory | United Kingdom |
| City | Aberdeen |
| Period | 14/05/14 → 15/05/14 |