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Keywords: precipitation
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Journal Articles
SPE Production & Operations (2021)
Paper Number: SPE-200695-PA
Published: 24 March 2021
... injection may no longer be required when the barium concentrations in the produced water drop below a certain threshold. Such a trigger value could be estimated from the barium sulfate precipitation tendency. Relaxation of requirements for the sulfate reduction plant (SRP) can significantly reduce...
Journal Articles
SPE Production & Operations 36 (01): 216–223.
Paper Number: SPE-203845-PA
Published: 10 February 2021
...Catherine M. Kirkland; Randy Hiebert; Robert Hyatt; Jay McCloskey; Jim Kirksey; Abby Thane; Alfred B. Cunningham; Robin Gerlach; Lee Spangler; Adrienne J. Phillips Summary In this manuscript, we describe the second of two field demonstrations of microbially induced calcium carbonate precipitation...
Journal Articles
SPE Production & Operations 36 (01): 1–21.
Paper Number: SPE-199350-PA
Published: 10 February 2021
... concentration drilling fluid chemistry drilling fluids and materials precipitation drilling fluid selection and formulation drilling fluid formulation sandstone mud acid mineral formation damage analcime SPE Production oil field acid nh 4 core sample drilling fluid property Upstream Oil...
Journal Articles
SPE Production & Operations 35 (04): 952–978.
Paper Number: SPE-199291-PA
Published: 12 November 2020
... gluconate ion to chelate calcium-based precipitation. In terms of formation-failure response, organic acids are in lower risk of causing a failure compared with HCl, specifically at deep formation treatments. Organic acids have also been used in other applications. For instance, formic acid is used in HT...
Journal Articles
SPE Production & Operations 35 (01): 085–097.
Paper Number: SPE-193635-PA
Published: 17 February 2020
... lead to uncontrolled SI precipitation and induced formation damage. This work takes a systematic approach to understanding the retention mechanisms of SI in carbonate formations with respect to the detailed carbonate-formation mineralogy, type of SI, and reservoir conditions in the absence of oil...
Journal Articles
SPE Production & Operations 34 (02): 361–372.
Paper Number: SPE-189218-PA
Published: 31 December 2018
... concentration co 2 cumulative caco 3 precipitation caco 3 prediction wax remediation oilfield chemistry PVT measurement sulfide-scale prediction Scenario carbonate reservoir carbonate-and sulfide-scale prediction alkalinity equation remediation of hydrates separator base-case scenario...
Journal Articles
SPE Production & Operations 34 (02): 344–360.
Paper Number: SPE-189519-PA
Published: 09 November 2018
... been studied for initial solution pH values of 2, 4, and 6. The two carbonate minerals used, calcite and dolomite, are much more chemically reactive than sandstone minerals (such as quartz, feldspars, and clays), which have already been studied extensively. In nearly all cases, precipitates formed at...
Journal Articles
SPE Production & Operations 34 (02): 332–343.
Paper Number: SPE-185772-PA
Published: 17 October 2018
... because barite precipitation in the reservoir is thus restricted, caused by sulfate being the limiting ion. However, some sulfate stripping does occur in the cooler reservoir, despite the higher solubility of anhydrite. Furthermore, in all cases, magnesium is retarded, with some groupings exhibiting the...
Journal Articles
SPE Production & Operations 33 (02): 179–195.
Paper Number: SPE-185953-PA
Published: 14 May 2018
... system were also carried out. Results indicate the potential of untreated produced water to cause precipitates and, hence, formation damage. Precipitates were successfully prevented by diluting the produced water with fresh water. Divalent cations were found to be the main source of precipitation, and...
Journal Articles
SPE Production & Operations 33 (03): 498–508.
Paper Number: SPE-184514-PA
Published: 26 February 2018
... changes, and scale-precipitation trends from the reservoir to the wellhead-separation stage using commonly available surface field data, a full PVT software package, and scale-prediction software of the user's choice. A simplified version of the work flow was previously applied to high-CO 2 and -H 2 S gas...
Journal Articles
SPE Production & Operations 33 (03): 486–497.
Paper Number: SPE-181278-PA
Published: 15 January 2018
... inhibition deposition Abu Dhabi psig gas injection remediation of hydrates viscosity yonebayashi Symposium SPE Production Asphaltene Precipitation Exhibition Jamaluddin interpretation Engineering particle asphaltene deposition AOP asphaltene precipitation injection reservoir particle...
Journal Articles
SPE Production & Operations 32 (04): 449–468.
Paper Number: SPE-179911-PA
Published: 16 November 2017
... analysis of the produced-water data set. Anhydrite and barite precipitation are the two dominant mineral reactions taking place deep within the reservoir. Magnesium (Mg) stripping may be a result of multicomponent ion exchange (MIE), dolomite precipitation, or a combination of both. Reservoir temperature...
Journal Articles
SPE Production & Operations 33 (01): 85–101.
Paper Number: SPE-174235-PA
Published: 25 September 2017
... are presented to investigate possible geochemical reactions taking place within the reservoir. The 1D and 2D theoretical model has been developed to test the modeling of barium sulfate precipitation implemented in the streamline simulator FrontSim. A completely 3D streamline simulation study for the...
Journal Articles
SPE Production & Operations 33 (01): 154–163.
Paper Number: SPE-187940-PA
Published: 25 September 2017
... discharge precipitation Upstream Oil & Gas fresh water Demonstration concentration usd 0 treatment cost Barnett SPE Production hydraulic-fracture water transportation cost sludge reuse Clarification Process water management sodium hypochlorite geographic region magnetite operation...
Journal Articles
SPE Production & Operations 32 (04): 476–490.
Paper Number: SPE-178956-PA
Published: 11 April 2017
...R.. Ortiz; C.. Perez; O.. Sánchez; U.. Aybar; F.. Tellez; L.. Mujica; J.. Aguilar; A.. Andrade; T.. Resendiz; L.. Camarillo; M.. Thompson Summary Asphaltene precipitation is a common phenomenon in mature reservoirs that seriously impairs oil production. In high-temperature (HT) fractured carbonate...
Journal Articles
SPE Production & Operations 32 (01): 64–72.
Paper Number: SPE-179885-PA
Published: 08 December 2016
... that the VPT EOS performs better than the SRK and PR EOSs in VLE calculations for the analyzed data. The errors introduced in VLE calculations have been found to impact the calculation of the amount of CaCO 3 precipitated, with consequences for scale-inhibitor selection. Higher deviations were found in...
Journal Articles
SPE Production & Operations 32 (03): 343–350.
Paper Number: SPE-178977-PA
Published: 18 November 2016
...A.. Valiakhmetova; K. S. Sorbie; L. S. Boak; S. S. Shaw Summary Scale-inhibitor (SI) squeeze treatments are applied extensively for controlling scale formation during oil and gas production. The current research involves phosphonate/metal precipitate studies in the context of precipitation-squeeze...
Journal Articles
SPE Production & Operations 32 (01): 86–98.
Paper Number: SPE-177280-PA
Published: 15 November 2016
...A. A. Prakoso; A. D. Punase; B.. Hascakir Summary Asphaltenes precipitation within reservoir pores or production flowlines can severely hamper the petroleum-extraction process. Although the effect of temperature and pressure on asphaltene deposition is well-known, the manner in which the variations...
Journal Articles
SPE Production & Operations 31 (03): 258–269.
Paper Number: SPE-169792-PA
Published: 18 August 2016
...N. M. Farooqui; K. S. Sorbie Summary Phosphino polycarboxylic acid (PPCA) is an industry standard polymeric scale inhibitor (SI) that is often applied as a precipitation-squeeze treatment. In this phase-separated process, PPCA forms a sparingly soluble complex with calcium ions. We show that the...
Journal Articles
SPE Production & Operations 31 (03): 270–279.
Paper Number: SPE-169765-PA
Published: 18 August 2016
... toolkit (Ishkov et al. 2009 ) provides insights into the components that are involved in in-situ geochemical reactions as the brines are displaced through the reservoir, and how the precipitation and dissolution of minerals and the ion-exchange reactions occurring within the reservoir can be identified...

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