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Ion exchange

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Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28211-MS
... and the saponification process, if natural acids are present. The objective of this study is to extend the existing models of ion exchange and surfactant partitioning between phases to improve the quality of the model. Geochemistry and saponification affect the propagation of the injected chemicals. This in turn...
Journal Articles
OIJ 2016 (01): 68–72.
Paper Number: OIJ-2016-01-068-072-RU
Published: 01 January 2016
...V. V. Kadet; P. S. Chagirov The pdf file of this paper is in Russian. Analysis of ion exchange processes between injected agent and clay-containing rock has been carried out. The analysis allowed to obtain reservoir properties depending on ionic composition of the injected water and clay-content...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166447-MS
... and field applications of LSW. The focus is on a widely agreed mechanism that is the wettability alteration from preferential oil wetness to water wetness of formation rock surfaces. Ion exchange and geochemical reactions have been experimentally found to be important in oil mobilization due to enhanced...
Proceedings Papers

Paper presented at the SPE Improved Oil Recovery Symposium, April 14–18, 2012
Paper Number: SPE-154144-MS
... setting. It should be noted that the desorption of divalent ion can promote this mechanism since divalent ions promote clay flocculation. Divalent cations have been reported to play important roles in the cation exchange, ligand exchange and cation bridging mechanisms of adsorption of organic...
Proceedings Papers

Paper presented at the E&P Environmental and Safety Conference, March 5–7, 2007
Paper Number: SPE-106820-MS
... together to apply one of STS's technologies for the purification of this produced water. The Higgins Loop Continuous Ion Exchange (CIX) System utilizes cation resins in an efficient mode to remove sodium from the water and concentrate it into a very small brine stream for disposal. The process also reduces...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-101710-MS
... thermodynamic functions whereas the original system contains both thermodynamic SPE 101710 Analytical Modeling of Chemical Flooding: One-Dimensional Two-Phase Flow Accounting for Ion Exchange A.P. Pires, SPE, P.M. Ribeiro, SPE, and P.G. Bedrikovetsky, SPE, North Fluminense State U. 2 SPE 101710 functions...
Proceedings Papers

Paper presented at the SPE International Thermal Operations and Heavy Oil Symposium and International Horizontal Well Technology Conference, November 4–7, 2002
Paper Number: SPE-78941-MS
... produced water. The main disadvantage of the WAC process is that the resins require regeneration with hydrochloric acid followed by sodium hydroxide. This is expensive and necessitates the utilization of exotic, corrosion resistant alloys for construction. Strong acid cation (SAC) ion exchange processes...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, March 2–5, 1993
Paper Number: SPE-25203-MS
... in the injected fresh water brine are often sufficient to reduce permeability impairment. Other studies pointed out the effect of pH. It is reported that low pH minimizes clay dispersion whereas high pH causes permeability reduction. Recently, it has been recognized that ion exchange is responsible in some...
Journal Articles
SPE Prod & Oper 7 (04): 325–330.
Paper Number: SPE-19413-PA
Published: 01 November 1992
...R.N. Valdya; H.S. Fogler Summary This paper elucidates the influence of pH and ion exchange on formation damage caused by fines migration. The experimental results affect waterflooding, design of drilling muds, and alkaline flooding. In-situ release of naturally existing fines (generally clays...
Journal Articles
SPE Res Eng 6 (02): 233–238.
Paper Number: SPE-18464-PA
Published: 01 May 1991
...B. Bazin; J. Labrid Summary Ion exchange and dissolution/precipitation processes are of considerableconcern when aqueous fluids are injected into reservoir sandstones, as inwaterflooding or alkaline flooding or in well treatments. This paper describesa flow model that takes into account several ion...
Journal Articles
SPE Res Eng 1 (06): 607–610.
Paper Number: SPE-14708-PA
Published: 01 November 1986
...J.A. Jensen; J.V. Gillis; C.J. Radke Summary Chromatographic lag observed upon injection of dilute alkali into reservoir sands is now well explained in terms of sodium/hydrogen ion exchange. However, the spread of the eluting hydroxide is more extreme than that associated with axial dispersion. We...
Journal Articles
J Pet Technol 36 (06): 1027–1032.
Paper Number: SPE-11001-PA
Published: 01 June 1984
...J.B. Otto, Jr. Otto Jr., J.B., SPE, Mobil R and D Corp. Summary This paper discusses a laboratory study that shows the saturation ion-exchange loading of uranium from carbonate leachate can be doubled by lowering the pH of the leachate from 8 to 6.5. Small column and batch resin-loading tests using...
Journal Articles
SPE J. 24 (01): 49–52.
Paper Number: SPE-10605-PA
Published: 01 February 1984
... interaction can be characterized as either chemical or ion-exchange reaction, and the magnitude of alkalinity consumption and its type must be considered when alkaline floods are designed for specific reservoirs. This is because alkalinity propagation in porous media is directly affected by the type...
Journal Articles
SPE J. 23 (04): 657–668.
Paper Number: SPE-8995-PA
Published: 01 August 1983
...A.L. Bunge; C.J. Radke Exchange of hardness ions is important in EOR with chemical additives. In both micellar/polymer and caustic flooding processes, multivalent ions released from rock surfaces can interact with anionic surfactants, rendering them preferentially oil soluble and/or insoluble...
Proceedings Papers

Paper presented at the SPE California Regional Meeting, March 23–25, 1983
Paper Number: SPE-11706-MS
... such as a weak carboxylic acid-type ion exchange resin. Conventional softening with strong acid resins would not work under these conditions. This paper discusses the different processes in softening oilfield produced water. Data obtained in softening varieties of produced waters from different oilfields...
Journal Articles
SPE J. 22 (02): 181–192.
Paper Number: SPE-9279-PA
Published: 01 April 1982
... that a system in which the preflood, slug, and drive have the same sodium and calcium concentration can have a significant increase in the calcium concentration in the surfactant bank and a significant decrease in calcium concentration in the drive because of ion exchange. A process with a salinity gradient...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–24, 1980
Paper Number: SPE-9508-MS
... Introduction The use of ion exchange resins for the concentration and recovery of uranium from low grade solutions is a recognized process which has been practiced for many years. The method of application has generally been downflow through fixed beds. Such a system resembles a water filter...
Proceedings Papers

Paper presented at the SPE Annual Fall Technical Conference and Exhibition, October 1–3, 1978
Paper Number: SPE-7587-MS
... Introduction The ionic environment of a reservoir is important in micellar flooding and in any other process where ion sensitive agents, such as caustic process where ion sensitive agents, such as caustic or wettability alteration fluids, are flooded through a reservoir. Ton exchange can have...
Journal Articles
J Pet Technol 30 (06): 959–968.
Paper Number: SPE-6598-PA
Published: 01 June 1978
... ahead of a slug of micellar solution, the most favorable circumstances for effective performance of the chemicals may be established. This study examines the efficiency of preflushing in situations where ion-exchange phenomena are important. In particular, the replacement of divalent cations...
Proceedings Papers

Paper presented at the Fall Meeting of the Society of Petroleum Engineers of AIME, October 3–6, 1971
Paper Number: SPE-3456-MS
... copies of any discussion should be sent to the Society of Petroleum Engineers office. Such discussion may be presented at the above meeting and, with the paper, may be considered for publication in one of the two SPE magazines. Abstract Recent developments in ion exchange technology have made...

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