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Keywords: determination
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Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173805-MS
... Abstract Microorganisms contribute to souring and corrosion in oil and gas field systems. Biocides and/or nitrate can be used to mitigate the negative effects associated with these microbial activities. In order to determine the success of or the need for these measures we use a number...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173712-MS
... Abstract Long-standing techniques for alkalinity determination in oilfield brines were derived from analysis of potable water as given in standard methods guidebooks (APHA, 1985). Such traditional potable water methods are unable discriminate the contribution from the naturally occurring...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173794-MS
... and at 250°F diffusion coefficient was found to be 3.03 × 10 −4 cm 2 /s. The acid diffusivity increased with increasing system temperature. Determination of the dissolution rate of MSA will increase the understanding of its performance as a stand-alone stimulation fluid. Its high acidity, high solubility...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164132-MS
... & Gas flow assurance oilfield chemistry scale inhibition paraffin remediation Hydrate Remediation hydrate inhibition gel degradation pressure wave asphaltene inhibition restart precipitation sensor Hydrate Inhibitor pipeline appearance temperature experiment determination wax...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121668-MS
... with a reactive oil. With a non-reactive oil, imbibition was moderate in the presence of alkali without surfactant. Formulations including a surfactant and an alkaline agent were evaluated and the results are discussed in relation with the InterFacial Tension. Moreover, the wettability index determined through...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-105048-MS
... the circulation rate was relatively low. Figure 3 displays the average wax content determined by the wax dissolver flash method during 12 hour monitoring periods. The graph shows that the wax content gradually increased with time, suggesting that restrictive wax deposits were being removed from the flowline...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 28–March 2, 2007
Paper Number: SPE-105765-MS
... different points and depths of the sludge in the tank interior. The samples were duly homogenized and submitted to tests to determine the percentages of water, oil and inorganic solids present in each sample. The fractions resulting from the tests were characterized through physical-chemical tests...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 5–7, 2003
Paper Number: SPE-80204-MS
... Abstract The paper demonstrates both converging and controversial laboratory results in potential application of silicone compounds (silanes, siloxanes and silicone oils and resins) to be used for restriction of water production in gas wells. The research program was extended to determination...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 5–7, 2003
Paper Number: SPE-80221-MS
... method determination concentration molecular weight fracturing fluid polysaccharide hydraulic fracturing lmw fluid flowback fluid proppant acetal linkage upstream oil & gas sugar fluid system weaver spe 80221 chemistry acid boron concentration breaker viscosity maintaining...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 13–16, 2001
Paper Number: SPE-65385-MS
... determination of relative permeability is the fact that most of commonly used models, do not take explicitly the interfacial properties. As a result, a correction must be done to the values calculated from the experiments when using such models. The Young equation is used for the experimental determination...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 13–16, 2001
Paper Number: SPE-64993-MS
... the detection limits and the reproducibility of this determination 8 . When field workovers made available solid deposits, expanded possibilities are then open through their analysis in order to get to understand the origin of the problem and, to improve the remedial and preventive actions to be taken...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 16–19, 1999
Paper Number: SPE-50720-MS
... This paper summarises the experimental and theoretical study conducted in ENI/Agip to investigate the effect of rock wettability on the dielectric response of water and oil saturated core samples. The aim of the study was to evaluate a dielectric technique not previously applied to wettability determination...
Proceedings Papers

Paper presented at the International Symposium on Oilfield Chemistry, February 18–21, 1997
Paper Number: SPE-37260-MS
.... Still, a certain amount of mercury might remain in the hydrocarbon condensate and the produced brine. Total mercury concentrations in condensate and brine were determined with a view to safety of field workers and restrictions imposed by refineries processing the condensates. Furthermore, the individual...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 14–17, 1995
Paper Number: SPE-28954-MS
... mobility inside the reservoir. Flow experiments have been performed by recirculating hydrolyzed polyacrylamide solutions through a small pack of sand particles. Polymer characteristics determined by viscometric and light scattering measurements have been analysed before and after injection at various flow...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 14–17, 1995
Paper Number: SPE-28969-MS
... Abstract A method for determinig crude oil polarity using inverse gas chromatography proved successful for classifying crudes as well as for assessing their ability to form stable emulsions with water. Polarity determinations have been applied to the formation test crude oil samples collected...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 14–17, 1995
Paper Number: SPE-29009-MS
... Abstract An automated method for the determination of acrylamide polymers by flow injection analysis (FIA) has been developed and optimized for routine use. The method has been extensively tested for interferences common in oilfield brines. Potential interferences were examined from Na + , Ca 2...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 20–22, 1991
Paper Number: SPE-21004-MS
... was evaluated by thermal gravimetry (TG), and differential thermal analysis (DTA). Elemental analysis of preserved and non preserved samples were carried out with a Carlo Erba 1106 elemental analyser. The sulfur content was also determined by two different ASTM methods. The presence of Nickel, Vanadium and Iron...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, February 20–22, 1991
Paper Number: SPE-21006-MS
... materials to orthophosphate. The orthophosphate material is extracted into a novel organic phase and measured. The process of extraction eliminates the common interferences to the orthophosphate measurement and allows the accurate determination of phosphonate materials at low levels. The method is suited...

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