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Keywords: molecular weight
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205997-MS
... resources and GeoMark RFDBASE containing dew point pressure (the target variable), and the compositional data (mole percentage of each component), temperature, molecular weight ( MW ), MW and specific gravity ( SG ) of heptane plus as input variables. Using domain knowledge, before embarking the study, we...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201503-MS
... are proposed for cumulative moles produced and for molecular weight of the C7+ fraction of the equilibrium gas. A new method for setting a more stringent constraint on the density of the liquid phase is proposed. Surprisingly, the presence of a straight line on the Hoffman, Crump, Hocott plot does...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196014-MS
...: 347,000 ppm)) as following the ratio of 2 gal per 10 bbl. The HVFR is anionic polymer, and the molecular weight is 18 to 26 million (g/mole). Table 1 shows the molecular weight of the tested friction reducers. Abstract Viscoelastic property of high-viscosity friction reducers (HVFRs) was developed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196107-MS
... in the past two years. FR materials have extremely high molecular weight; consequently, breakers are recommended to reduce polymer size and to mitigate potential damage to fracture conductivity, microfractures or secondary fractures, and the formation. A better understanding of the breaking mechanism of FRs...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–26, 2018
Paper Number: SPE-191496-MS
... experiment crude oil reservoir co2 injection fraction society of petroleum engineers live oil system intermediate component oil system molecular weight psig MMP Introduction All over the world, and especially in Abu Dhabi, there has been a considerable rise in the domestic and commercial...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187170-MS
... class (P, N, and A) a constant ε parameter is used independent of molecular weight while the parameter m is assumed to increase linearly with molecular weight. The m and ε parameters of the individual component classes are combined into one value, representative of the whole carbon number fraction...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187453-MS
... simulator characterization reservoir fluid data quality accuracy black-oil simulator fluid property reservoir fluid characterization molecular weight equation Modeling & Simulation PVT property prediction eos Whitson compositional simulator Introduction Reservoir fluids...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–11, 2017
Paper Number: SPE-187255-MS
... by mixing three different grades of HPAM (molecular weights of 500,000; 8,000,000; and 20,000,000) at polymer concentrations 0.09%, 0.05% and 0.03% wt. The shear viscosity and elasticity characteristics of test fluids were determined by performing shear viscosity and frequency sweep oscillatory measurements...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 26–28, 2016
Paper Number: SPE-181272-MS
... control additives are high molecular weight sulfonated copolymers, generally comprising AMPS. The mechanism of action of these polymers has been studied recently and it was demonstrated that adsorption onto the cement surface is key to the achieve product performance. Unfortunately this adsorption yield...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175035-MS
... not show the effect of temperature and gas molecular weight on AP. The presented work aims to develop an analytical model for gas apparent permeability of nanopores which is valid for Knudsen number up to unity. Solutions to the Regularized 13 (R13)-moment equations (extension of Grad's 13-moments...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175085-MS
... where μ is the chemical potential, h stands for depth, M for molecular weight, g for gravitational acceleration and h° is a reference depth. The chemical potential is related to the fugacity through the following relation (2) d μ i = R T d ln f i = R T d ln ( φ i...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 28–30, 2015
Paper Number: SPE-175152-MS
... pressure PVT measurement Phase Behavior composition Upstream Oil & Gas calculation shale nanoporous reservoir system 2 system 1 membrane efficiency fraction nc 4 liquid phase membrane property pressure depletion hydrocarbon viscosity vapor phase molecular weight reservoir psia...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170817-MS
... asphaltene thermal method steam-assisted gravity drainage viscosity simulation study heavy oil viscosity molecular weight molecule Introduction Exploitation of heavy oil (with viscosity on the order of 1000 cP and higher) is gaining momentum in light of increased scarcity of conventional oil...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166097-MS
... and phase behavior effects. upstream oil & gas concentration nitrogen compressibility saturation pressure mpa spe 166097 asphaltene precipitation nitrogen concentration pvt measurement molecular weight reservoir fluid liquid phase composition oil viscosity oil recovery gas...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166246-MS
..., C1-(C2)-C3/5-C6+ weight percents, GOR and downhole density are provided by the different techniques. Then, the model can predict the other fluid properties (such as molecular weight, FVF, API…) and propagate them along the well section thanks to the quantitative mud gas data alone. The quantitative...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-166414-MS
... fractions of methane through heptanes-plus and nonhydrocarbon impurities, along with molecular weight and specific gravity of the heptanes-plus fraction. The database was restricted to fluids with heptanes-plus content between 1 and 25 mole %, and with relatively low non-hydrocarbon impurities content (less...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2013
Paper Number: SPE-167620-STU
... temperature, composition of the mixture, molecular weight and specific gravity of the heptane plus fraction. The proposed model has an ARD of 0.44%, average absolute deviation (AAD) of 7.68% in comparison to other methods. In the same year, Hummoud and Marhoun (A.A. Humoud, 2001) also presented...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-159396-MS
... to polymer specificity and thermal stability. A novel type of breaker system, derived from biological sources and displaying catalytic, polymer degrading activity similar to that of enzymes, was obtained and tested for its ability to reduce the viscosity and molecular weight of polymers used in hydraulic...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-160314-MS
... were correlated to component molecular weight and therefore a gas chromatographic assay is the only required input apart from the temperature and pressure. The methodology was developed from a Western Canadian dataset of two bitumens, one heavy oil, and one condensate, and then tested...

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