Notice bibliographique
Résumé
Modelling a Double Piston Pump Oscar Becerra; Oscar Becerra PDVSA Intevep Search for other works by this author on: This Site Google Scholar Jose Gamboa; Jose Gamboa PDVSA Intevep Search for other works by this author on: This Site Google Scholar Frank Kenyery Frank Kenyery Universidad Simon Bolivar Search for other works by this author on: This Site Google Scholar Paper presented at the SPE International Thermal Operations and Heavy Oil Symposium and International Horizontal Well Technology Conference, Calgary, Alberta, Canada, November 2002. Paper Number: SPE-78997-MS https://doi.org/10.2118/78997-MS Published: November 04 2002 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Becerra, Oscar, Gamboa, Jose, and Frank Kenyery. "Modelling a Double Piston Pump." Paper presented at the SPE International Thermal Operations and Heavy Oil Symposium and International Horizontal Well Technology Conference, Calgary, Alberta, Canada, November 2002. doi: https://doi.org/10.2118/78997-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE International Thermal Operations and Heavy Oil Symposium Search Advanced Search AbstractThe idea of using serial arrangements of sucker rod pumps to efficiently produce heavy oil wells with high gas to oil ratio has been analyzed in Venezuela since 1996. However, models to calculate the dimensions of the required plungers have not been presented in previous literature. An analytical model is presented in this work, based on the geometry of the pumps and the properties of the fluids to be handled. This model was validated using experimental data acquired in a reduced scale test bench, where machine oil and air were used as pumped fluids. A good performance of the dynamic model predicting dina-graphic card was observed. It was also found that the static model was useful for determining the application window of any arrangement. At the same time, a poor performance of the flow model through valves was observed due to the simplifications assumed on the model of the process.IntroductionSucker rod pumping is the oldest and most common artificial lift method in the world. Due to its simplicity and robustness, it can be applied to almost any well that needs a lifting system. Nevertheless, there are some physical limits for its practical application, such as depth and flow rate.For conventional sucker rod pumps, the larger the gas void fraction at the pump intake, the larger the pump and surface components required to handle the large volumetric rates and pumping loads.In Venezuela 80 % of heavy oil wells are lifted through sucker rod pumping systems. In most of the cases, reservoir depletion has lead to extremely low downhole pressures, which combined with the low efficiency of downhole gas separation at high viscosity conditions causes an important negative effect on the volumetric efficiency of sucker rod pumps. One of the proposed solutions to improve the performance of the lift system consists on the use of a serial arrangement of two pumps with different capacities. The first higher capacity pump will compress the gas trough out a low pressure increment, then the second pump with lower volumetric capacity will increase the pressure to reach the discharge pressure. This arrangement can increase the flow capacity of the system without a significant load increase, as long as the corespondent pump volumetric capacities are correctly adapted to well conditions.Since no information about mechanistic models or experimental experiences were found in the literature, a formal study to develop a model to simulate and design this kind of systems was conducted.General Description of the systemA brief description of the main components of 2-stage pumps will be presented in this section. Keywords: valve, artificial intelligence, volumetric factor, arrangement, volumetric efficiency, deviation, chamber pressure, pressure drop, eseg, equation Subjects: Artificial Lift Systems, Beam and related pumping techniques This content is only available via PDF. 2002. SPE/PS-CIM/CHOA International Thermal Operations and Heavy Oil Symposium and International Horizontal Well Technology Conference You can access this article if you purchase or spend a download.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,001 |
| Méta-épidémiologie (sens large) | 0,001 | 0,002 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,001 | 0,001 |
| Communication savante | 0,003 | 0,002 |
| Science ouverte | 0,001 | 0,002 |
| Intégrité de la recherche | 0,003 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,012 | 0,001 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».