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Keywords: molecule
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Journal Articles
SPE Prod & Oper 38 (04): 764–773.
Paper Number: SPE-215849-PA
Published: 08 November 2023
... will reach 73.8%. The microrheological test results of the friction reducer solution show that, at 0.2% concentration, there is no network structure between friction reducer molecules, which is consistent with Newtonian fluids possessing a certain viscosity. The elasticity index (EI) of the drag reducer...
Journal Articles
SPE Prod & Oper 38 (03): 471–477.
Paper Number: SPE-214332-PA
Published: 09 August 2023
... molecules remain liquid in this region, where they are near Na + and Cl − . From the independent gradient model (IGM) based on Hirshfeld partition (IGMH) analysis, Na + does not bond with any ions/molecules, which hinders the formation of water cages and thus inhibits hydrate growth; Cl − forms multiple H...
Includes: Supplementary Content
Journal Articles
SPE Prod & Oper 33 (02): 371–381.
Paper Number: SPE-187951-PA
Published: 14 May 2018
... by Kang et al. ( 2004 ) showed that the demulsifier molecules would replace the emulsifier molecules adsorbed onto the O/W interface, which resulted in a loose arrangement of the interfacial film, reducing its mechanical strength and promoting the demulsification and dehydration. Borges et al. ( 2009...
Journal Articles
SPE Prod & Oper 33 (04): 784–789.
Paper Number: SPE-189462-PA
Published: 04 January 2018
... national polytechnic school valve november 2018 assessment operation artificial lift system julian mechanism downhole completion molecule leak rate petroleum engineering rig Chemical seals are made using pressure-activated compounds (Romano and Roderi 2006 ). The sealant, which...
Journal Articles
SPE Prod & Oper 30 (03): 223–228.
Paper Number: SPE-172190-PA
Published: 18 August 2015
... coefficient to the reaction kinetics of adsorption of a known molecule(s) in produced water. Short-time kinetics of adsorption of different molecules vary on the basis of chemical nature and molecular size. Ultraviolet–visible (UV–Vis) spectroscopy is used to confirm the results. An estimate of residual...
Journal Articles
Journal Articles
SPE Prod & Oper 19 (03): 135–141.
Paper Number: SPE-80250-PA
Published: 01 August 2004
... pipeline corrosion rock/fluid interaction ppm subsurface corrosion remediation of hydrates wax inhibition water management fluid loss control august 2004 molecule downstream oil & gas produced water carboxylate enhanced recovery sga-hem The production of petroleum hydrocarbons...
Journal Articles
SPE Prod & Oper 19 (03): 142–151.
Paper Number: SPE-81506-PA
Published: 01 August 2004
... turbulence model was applied that described turbulence damping by the molecules of drag-reducing additives (DRAs) in the near-wall regions. The von Karman constant in the near-wall region was used as the model parameter. Extensive measurements of the DR effect for a rotating viscometer were performed...
Journal Articles
SPE Prod & Oper 15 (01): 58–65.
Paper Number: SPE-60842-PA
Published: 01 February 2000
... concentration reservoir fluid reversibility scale inhibition upstream oil & gas composition remediation of hydrates paraffin remediation asphaltene remediation fraction artificial intelligence liquid phase thermodynamic micellization model spe prod reservoir crude resin molecule production...
Journal Articles
SPE Prod & Oper 13 (03): 184–189.
Paper Number: SPE-50972-PA
Published: 01 August 1998
... concentrations to the water. Furthermore, the presence of these chemicals seems to affect the size of the forming hydrate particles. At favorable conditions of pressure and temperature, water in contact with natural gas crystallizes and physically entraps certain molecules of the hydrocarbon stream...
Journal Articles
SPE Prod & Oper 13 (02): 118–127.
Paper Number: SPE-36741-PA
Published: 01 May 1998
... contributions including the association between asphaltene molecules in the core, the deformation of asphaltene and resin molecules in the micelle, and the adsorption of resin molecules onto the micellar core. The Gibbs free energy ofthe petroleum liquid phase includes the contributions from the standard state...
Journal Articles
SPE Prod & Oper 13 (01): 15–20.
Paper Number: SPE-36665-PA
Published: 01 February 1998
... -solvent conditions. 16 The number of polymer molecules retained at time t is given by n ( t ), and Attractive interactions (Van der Waals, hydrogen bond, etc.), on the other hand, give rise to a thin polymer layer on the pore walls. The thickness of this layer, ε H , is nearly equal...
Journal Articles
SPE Prod & Oper 11 (04): 256–260.
Paper Number: SPE-30913-PA
Published: 01 November 1996
... Effects of methanol and ethylene glycol on hydrate formation conditions. Natural gas hydrates are clathrate compounds in which natural gas molecules are encased in cages of water molecules to form a solid ice-like substance. The molecules commonly found in natural gas that occupy the cages...
Journal Articles
SPE Prod & Oper 5 (01): 70–76.
Paper Number: SPE-17914-PA
Published: 01 February 1990
... drilling fluid property Production Chemistry asphaltene remediation scale inhibition polyelectrolyte asphaltene inhibition Effectiveness polyacrylate inhibitor molecule hydrophobic group ph 5 PAA pma2 crystal surface pH value Compound acid group interaction spe production engineering...
Journal Articles
SPE Prod & Oper 4 (02): 157–160.
Paper Number: SPE-15660-PA
Published: 01 May 1989
... these wells with paraffin solvents and acid systems have been unsuccessful. The in-situ heat process has yielded 10-fold production rate increases and payout times of less than 1 week. ha value upstream oil & gas solution ph reservoir surveillance wellbore paraffin solvent reaction rate molecule...
Journal Articles
SPE Prod & Oper 3 (04): 584–590.
Paper Number: SPE-14092-PA
Published: 01 November 1988
... integrity spectrum acid engineering inhibition corrosion rate mechanism pipeline corrosion adsorption acid solution flowline corrosion molecule hci subsurface corrosion inhibitor molecule compound spe production engineering Table 1 ELEMENTAL ANALYSES OF J55 (wt%) Lot C S...

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