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Keywords: equation
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Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 8–9, 2019
Paper Number: SPE-193542-MS
... using an equation derived from calibration data in the laboratory; the second uses the Bernoulli equation, and is theoretical. For the empirical approach, the laboratory-based pressure-drop/flowrate calibration data were fitted to an equation, with parameters that depended upon the nozzle dimensions...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184505-MS
... relative permeability water injection Modeling & Simulation Fluid Dynamics heterogeneity reaction enhanced recovery Upstream Oil & Gas concentration capillary pressure curve equation carbonate rock Chandrasekhar dissolution permeability reservoir Oil Recovery Nearly half...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184537-MS
.... Unlike conventional reservoirs, where chemical transport is dominated by pressure differentials from pumping, in ultra-low permeability systems imbibition and diffusion processes can be as important, if not more so. We report a model that numerically solves either the imbibition equation or Fick's second...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184547-MS
... equation barite mineral molecular weight In the oil and gas industry, scale formation is viewed as one of the largest water-related production problems ( Kelland 2014 ). It can cause well productivity loss through pipeline blockage, formation damage, or equipment malfunction. To control...
Proceedings Papers

Paper presented at the SPE International Conference on Oilfield Chemistry, April 3–5, 2017
Paper Number: SPE-184562-MS
... Monod kinetics equation. Then, we discuss the modeling of the competition between different types of substrates. Finally, we implement the model into a 3D finite difference non-isothermal reservoir simulator. The new model results are compared to previous model results and validated against...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173713-MS
... corrosion sour gas well scale formation iron sulfide scale alet al sour corrosion Subsurface Corrosion Upstream Oil & Gas Corrosion Inhibition gas well Sulfide iron sulfide Smith equation society of petroleum engineers This paper presents a review of existing knowledge on iron...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173710-MS
... that evolve as a result of mechanisms like precipitation, flocculation, adsorption and entrapment during pressure depletion and solvent injection tests in core samples. A fully coupled numerical scheme that bundles all nonlinear partial differential equations (PDEs) and pertinent relations is developed...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173786-MS
.... As the collection of the contaminant-attached MNPs by the application of magnetic field gradient is a critical step for the process, we developed a 1D mathematical model for the description of the dynamics of the MNP collection in the framework of the sedimentation theory. The conservation equation for MNPs...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 13–15, 2015
Paper Number: SPE-173784-MS
... will be presented and the mechanism will be explored to explain such observations. Semi-empirical equations will be proposed to predict the viscosity response of polymers in real-world produced water. Results generated in laboratory synthetic high-TDS water are then compared to those obtained in field produced...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164067-MS
... production monitoring Production Chemistry Corrosion Management oilfield system Carroll water ph water cut activity coefficient mole fraction spe 164067 equation The concentration of H 2 S in gas is especially important when when considering its toxicity. Table 1 summarizes the acceptable...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164119-MS
... Artificial Intelligence fracturing fluid viscosity suspension injection correlation proppant pack VTF equation fracturing materials proppant Civan resistance factor Permeability reduction reservoir characterization gel particle empirical correlation permeability impairment equation...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164099-MS
...-physical properties. Phase diagrams generated using ternary (C 1 , C 4 , and C 8 ) mixtures under reservoir conditions show a two-phase envelop shift due to pore size dependence. We show the importance of the results performing a shale gas in-place calculation using Ambrose's equation where the equation...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164127-MS
... in solution are removed as H 2 S, gas and each moles of sulfide is substituted by bicarbonate ( Eq. 8 ). Thus, sulfides will not be included in the curve fitting equation for determining the alkalinity and organic acid discussed below. Figure 2 Schematic diagram of the autotitration apparatus (1. CO2...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164100-MS
... was discussed. HLB value equal around 6-9 can be used for primary designing and screening of oil-displacement surfactants, which is very convenient. By using HLB empirical equation, the hydrophobic group carbon chain of some of surfactants such as alkylbenzene sulfonate and alkyl naphthalene sulfonate can...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 8–10, 2013
Paper Number: SPE-164111-MS
... solution compositions, final pH levels etc. The equilibrium equations for the sulphide system are presented and solved in a manner in which they are compared directly with the experimentally measured quantities. The actual Saturation Ratios (SRs) (e.g. SR = [Fe 2+ ][S 2- ]/K sp,FeS ) are calculated...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-140141-MS
... porous media upstream oil & gas composition fine migration reservoir waterflooding particle recovery factor injection concentration salinity saturation equation layer cake reservoir permeability Fines migration, and subsequent reduction in permeability, has been observed...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-141031-MS
... flow in porous media calculation solubility procedure primary species stoichiometric relation coefficient solution procedure activity coefficient concentration co 2 spe 141031 mineral equation equilibrium correlation aqueous phase aqueous species dissolution Underground...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 11–13, 2011
Paper Number: SPE-141166-MS
... of temperature and pressure on the rheology, filtration loss characteristics, and the stability of non- aqueous micro bubble based drilling fluids were investigated. PVT analysis was also conducted to develop an equation of state for non-aqueous micro bubble based drilling fluids. drilling fluid selection...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121681-MS
... fidelity even in extreme ranges of composition. Limiting equations will be developed that incorporate some kinetics into brine chemistry modeling for flow in porous media and for flow in pipes. scale remediation Production Chemistry Upstream Oil & Gas paraffin remediation wax inhibition...
Proceedings Papers

Paper presented at the SPE International Symposium on Oilfield Chemistry, April 20–22, 2009
Paper Number: SPE-121713-MS
... experiment acid breakthrough propagation visualization image wormhole equation SPE 121713 Propagation of Viscoelastic Surfactant-Based Acids in Carbonate Cores Abdulwahab H. Al-Ghamdi, SPE, Mohamed A. Mahmoud, SPE, A.D. Hill, SPE, and Hisham A. Nasr-El-Din, SPE, Texas A&M University Copyright 2009...

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