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Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207543-MS
.... This is done by first passing the produced water through a resin bed, including bromine-specific ion exchange resin, where the bromide ions will adsorb/absorb onto the resin, as shown in Figure-1 . The second step involves regenerating the resin with regenerant having calcium cations and water to form calcium...
Publisher: Offshore Technology Conference
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: Neftyanoe khozyaystvo - Oil Industry
Publisher: Oil Industry Journal
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...
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...
Paper presented at the SPE Improved Oil Recovery Symposium, April 14–18, 2012
Paper Number: SPE-154144-MS
... describes how dissolution/precipitation of various carbonate minerals and multiple ion-exchange (MIE) will have an impact on the water-oil flow function. The model is formulated such that the total release of divalent cations from the rock surface will give rise to a change of the relative permeability...
Paper presented at the E&P Environmental and Safety Conference, March 5–7, 2007
Paper Number: SPE-106820-MS
... 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...
Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-101710-MS
... and then the original system could be solved. So, the solution of the problem of one-dimensional two-phase flow accounting for ion exchange was obtained. Mathematical Modeling of Chemical Flooding We consider linear displacement of oil by an aqueous solution of n components (polymer, salts), which can...
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
..., corrosion resistant alloys for construction. Strong acid cation (SAC) ion exchange processes employing only brine regeneration (i.e. no acid or caustic) are much simpler and less expensive, however the SAC process is normally restricted to low TDS (<3000 mg/L) waters. A new ion exchange softening flow...
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: SPE Production & Operations
SPE Prod & Oper 7 (04): 325–330.
Paper Number: SPE-19413-PA
Published: 01 November 1992
...R. N. Vaidya; 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: SPE Reservoir Engineering
SPE Res Eng 6 (02): 233–238.
Paper Number: SPE-18464-PA
Published: 01 May 1991
...Brigltte Bazln; Jean Labrld Summary Ion exchange and dissolution/precipitation processes are of considerable concern when aqueous fluids are injected into reservoir sandstones, as in waterflooding or alkaline flooding or in well treatments. This paper describes a flow model that takes into account...
Journal: SPE Reservoir Engineering
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...
Journal: Journal of Petroleum Technology
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...
SPE J. 24 (01): 49–52.
Paper Number: SPE-10605-PA
Published: 01 February 1984
... 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 of alkalinity loss. It has...
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...
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...
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...
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...
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: Journal of Petroleum Technology
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...
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