| 000 | 03188nmc a2200325 4500 | ||
|---|---|---|---|
| 005 | 20260520005608.0 | ||
| 008 | 260224s2001 xxu ing | ||
| 041 | _aInglés | ||
| 245 | 0 | 0 |
_aPhysical and Numerical Simulation of an Extra-Heavy Crude Oil Downhole Upgrading Process Using Hydrogen Donors Under Cyclic Steam Injection Conditions _bSPE 69561 |
| 260 |
_aDallas, Texas _bSociety of Petroleum Engineers _c2001 |
||
| 270 | _a12/09/06 ; 17/07/01 | ||
| 520 | _aPhysical simulation experiments of a Downhole Upgrading Process showed that use of a hydrogen donor additive (tetralin) in the presence of methane (natural gas) and the mineral formation under steam injection conditions (280°C and residence times greater than 24 h) led to an increase of at least three degree in API gravity of the treated Extra-Heavy Crude Oil, three-fold viscosity reduction and, approximately, 8% decrease in the asphaltene content with respect to the original crude. In the present work, a continuous bench scale plant was used at different temperatures (280-315°C) and residence times (24-64 h) for carrying out kinetic studies. A reaction model involving four pseudo-components (light, medium, heavy and asphaltene fractions) was used and the kinetic parameters (pre-exponential factors and activation energies) were determined. Using these data, compositional-thermal numerical simulations were carried out and validated using the bench scale data. The results showed a good match between the calculated and experimental °API gravities of the upgraded crude oil (average relative error 4%) Using the previous model, the Downhole Upgrading Process was numerically simulated under cyclic steam injection conditions (injection of 2500 bbl/d of 1:1 steam/tetralin with 75% quality steam) for 20 days, followed by 10 days of soaking period) in a typical Orinoco Basin reservoir (9°API). The simulation runs showed the production of 12°API upgraded crude oil, accumulated over a 100 day-cycle. However, a reduction in the percentage of conversion of tetralin was observed (0.8%) in comparison with the bench scale experiments (3%), which was attributed to gravitational segregation of the steam coupled with low mixing efficiency of the hydrogen donor with the extra-heavy crude oil at reservoir conditions. | ||
| 942 | _cCONGTP | ||
| 100 | 1 |
_aOvalles, Cesar _96299 |
|
| 100 | 1 |
_aMartinis, Jorge _96300 |
|
| 100 | 1 |
_aPérez-Pérez, Alfredo _96301 |
|
| 100 | 1 |
_aCotte, Edgar _96302 |
|
| 100 | 1 |
_aCastellanos, Luis _96303 |
|
| 100 | 1 |
_aRodríguez, Héctor _9845 |
|
| 111 | 2 |
_aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) _95738 |
|
| 700 | 1 |
_aMartinis, Jorge _96300 |
|
| 700 | 1 |
_aPérez-Pérez, Alfredo _96301 |
|
| 700 | 1 |
_aCotte, Edgar _96302 |
|
| 700 | 1 |
_aCastellanos, Luis _96303 |
|
| 700 | 1 |
_aRodríguez, Héctor _9845 |
|
| 711 | 2 |
_aLatin American and Caribbean Petroleum Engineering Conference (7th : 2001 mar. 25-28 : Buenos Aires, Argentina) _95738 |
|
| 800 | 1 |
_aOvalles, Cesar _96299 |
|
| 999 |
_c131093 _d131093 |
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| 856 | _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/LACPEC2001/Spe69561.pdf | ||