Coupled Adsorption/Precipitation of Scale Inhibitors: Experimental Results and Modeling
- Mhamed Kahrwad (Heriot-Watt University) | Kenneth S. Sorbie (Heriot-Watt University) | Lorraine S. Boak (Heriot-Watt University)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- August 2009
- Document Type
- Journal Paper
- 481 - 491
- 2009. Society of Petroleum Engineers
- 4.3 Flow Assurance, 4.1.5 Processing Equipment, 4.1.2 Separation and Treating, 5.3.1 Flow in Porous Media, 5.3.2 Multiphase Flow, 1.8 Formation Damage, 5.6.5 Tracers, 4.3.4 Scale, 2.4.3 Sand/Solids Control
- 2 in the last 30 days
- 604 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 35.00|
In this paper, results are presented on the general mechanisms by which scale inhibitors (SIs) are retained within porous media. There is a generally accepted view that the main two mechanisms of SI retention are "adsorption" and "precipitation," and these are described by different but related modeling approaches in the literature. These approaches have been used quite successfully to model field squeeze treatments. To analyze in a detailed and unambiguous manner where a given retention mechanism (e.g., pure adsorption) or mechanisms (e.g., coupled adsorption and precipitation) are operating requires that we carry out careful laboratory experiments under "field relevant" conditions.
In this work, we study adsorption vs. adsorption/ precipitation by performing a series of experiments where we know that the system exhibits either (a) adsorption only or (b) coupled adsorption/precipitation. Experimentally, it is straightforward to determine which regime the system is in. We present the theory describing the coupled adsorption/precipitation process. In addition, an extensive series of experimental adsorption/precipitation measurements is presented for various mineral separates including sand, chlorite, siderite, muscovite, kaolinite, and feldspar. The coupled adsorption/precipitation model is in very good agreement with the experiment.
|File Size||923 KB||Number of Pages||11|
Børeng, R., Sorbie, K.S. and Yuan, M.D. 1994. The Underlying Theory andModelling of Scale Inhibitor Squeezes in Three Offshore Wells on the NorwegianContinental Shelf. Proc., Fifth International Oilfield ChemicalsSymposium, Geilo, Norway, 20-23 March.
Funkhouser, G.P. and Gdanski, R.D. 2001. Improved Adsorption-IsothermModelling for Phosphonate Scale Inhibitors. Proc., 12th InternationalOil Field Chemistry Symposium, Geilo, Norway, 1-4 April.
Gdanski, R.D. and Funkhouser, G.P. 2001. Successful Model of the KineticRelease of a Phosphonate Scale Inhibitor. Proc., 12th International OilField Chemistry Symposium, Geilo, Norway, 1-4 April.
Hong, S.A. and Shuler P.J. 1988. A Mathematical Model for the ScaleInhibitor Squeeze Process. SPE Prod Eng 3 (4): 597-607;Trans., AIME, 285. SPE-16263-PA. doi: 10.2118/16263-PA.
Kerver, J.K. and Heilhecker, J.K. 1969. Scale Inhibition by the SqueezeTechnique. J. Can. Pet. Tech. 8 (1): 15-23.
King, G.E. and Warden, S.L. 1989. Introductory Work in Scale InhibitorSqueeze Performance: Core Tests and Field Results. Paper SPE 18485presented at the SPE International Symposium on Oilfield Chemistry, Houston,8-10 February. doi: 10.2118/18485-MS.
Malandrino, A., Yuan, M.D., Sorbie, K.S., and Jordan, M.M. 1995. Mechanistic Study and Modelling ofPrecipitation Scale Inhibitor Squeeze Processes. Paper SPE 29001 presentedat the SPE International Symposium on Oilfield Chemistry, San Antonio, Texas,USA, 14-17 February. doi: 10.2118/29001-MS.
Meyers, K.O., Skillman, H.L., and Herring, G.D. 1985. Control of Formation Damage atPrudhoe Bay, Alaska, by Inhibitor Squeeze Treatment. J. Pet. Tech.37 (6): 1019-1034. SPE-12472-PA. doi: 10.2118/12472-PA.
Miles, L. 1970. New Well Treatment Inhibits Scale. Oil and GasJournal 68 (23): 96-99.
Sorbie, K.S. and Gdanski, R.D. 2005. A Complete Theory of Scale-InhibitorTransport and Adsorption/Desorption in Squeeze Treatments. Paper SPE 95088presented at the SPE International Symposium on Oilfield Scale, Aberdeen, 11-12May. doi: 10.2118/95088-MS.
Sorbie, K.S., Jiang, P., Yuan, M.D., Chen, P., Jordan, M.M., and Todd, A.C.1993a. The Effect of pH, Calciumand Temperature on the Adsorption of Phosphonate Inhibitor Onto Consolidatedand Crushed Sandstone. Paper SPE 26605 presented at the SPE AnnualTechnical Conference and Exhibition, Houston, 3-6 October. doi:10.2118/26605-MS.
Sorbie, K.S., Wat, R.M.S., and Todd, A.C. 1992. Interpretation and TheoreticalModeling of Scale Inhibitor/Tracer Corefloods. SPE Prod Eng7 (3): 307-312; Trans., AIME, 293. SPE-20687-PA.doi: 10.2118/20687-PA.
Sorbie, K.S., Wat, R.M.S., Todd, A.C. and McClosky, T. 1991. Derivation ofScale Inhibitor Adsorption Isotherms for Sandstone Reservoirs. In Chemicalsin the Oil Industry: Developments and Applications, ed. P.H. Ogden.Cambridge, UK: Royal Society of Chemistry.
Sorbie, K.S., Yuan, M.D., and Jordan, M.M. 1994. Application of a Scale InhibitorSqueeze Model to Improve Field Squeeze Treatment Design. Paper SPE 28885presented at the European Petroleum Conference, London, 25-27 October. doi:10.2118/28885-MS.
Sorbie, K.S., Yuan, M.D., Chen, P., Todd, A.C., and Wat, R.M.S. 1993b. The Effect of pH on the Adsorptionand Transport of Phosphonate Scale Inhibitor Through Porous Media. PaperSPE 25165 presented at the SPE International Symposium on Oilfield Chemistry,New Orleans, 2-5 March. doi: 10.2118/25165-MS.
Vazquez, O., Mackay, E.J., and Sorbie, K.S. 2006. Development of a NonaqueousScale-Inhbitor Squeeze Simulator. Paper SPE 100521 presented at the SPEInternational Oilfield Scale Symposium, Aberdeen, 31 May-1 June. doi:10.2118/100521-MS.
Vetter, O.J. 1973. The ChemicalSqueeze Process: Some New Information on Some Old Misconceptions. J. PetTech 25 (3): 339-353; Trans., AIME, 255.SPE-3544-PA. doi: 10.2118/3544-PA.
Yuan, M.D., Sorbie, K.S., Todd, A.C., Atkinson, L.M., Riley, H., and Gurden,S. 1993. The Modelling ofAdsorption and Precipitation Scale Inhibitor Squeeze Treatments in North SeaFields. Paper SPE 25163 presented at the SPE International Symposium onOilfield Chemistry, New Orleans, 2-5 March. doi: 10.2118/25163-MS.
Zhang, H., Mackay, E.J., Chen, P., and Sorbie, K.S. 2000. Non-Equilibrium Adsorption andPrecipitation of Scale Inhibitors: Corefloods and Mathematical Modelling.Paper SPE 64755 presented at the International Oil and Gas Conference andExhibition, Beijing, 7-10 November. doi: 10.2118/64755-MS.