Evaluation of a Casing Drilling Connection Subjected to Fatigue and Combined Load Testing
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
Abstract The initial requirements for casing drilling connections included fatigue resistance, high torque capacity, and economics. As casing drilling becomes more prevalent, the wells become more critical. These wells exhibit increasing depth, higher down-hole pressure, more load cycles and elevated temperature. The performance of connectors under these conditions must be verified. Fatigue life, pressure containment and combined axial and pressure capacity are of particular interest. To accomplish this, various tests are required.3 Included are:Fatigue testing to target cycles followed by high pressure capped end test.Fatigue testing to failure.Combined load testing.Fatigue testing to target cycles followed by ISO 13679 combined load test. This paper will detail the results to date of such a program. Current status of the 4 phases mentioned above included completion of Phase 1, partial completion of Phase 2, and a rehearsal sample for Phase 4. Significant conclusions from this effort thus far include:API modified thread compound out performedan anaerobic thread compounds.Teflon seal rings exhibited superior pressure containing performance compared to thread compounds.Static capacity can be affected by dynamic loading.Seal systems, both thread compound and seal rings, may exhibit cyclical failure before mechanical failure.SN data for 9 5/8 inch, .545-inch wall, 53.50 lb/ft, P- 110 exhibits sufficient fatigue life to drill wells under current conditions.ISO Configuration 1 resulted in the poorest fatigue performance thus far. Introduction The objective of this project has four distinct goals. The first was design selection. The design selection phase considered three designs:DWC/C connector using API Modified thread compound.DWC/C connector using Anaerobic thread Compound.DWC/C-SR connector using a Teflon Seal Ring (SR) and API Modified thread compound. The preferred design was filtered out through harmonic fatigue testing of connectors machined to nominal tolerances, with subsequent capped end testing. The designs were also ranked and a second best performer or secondary design was determined. The second goal was to generate an SN curve for the preferred design and compare it to a limited number of samples of the second best design. This was accomplished through harmonic fatigue testing of the preferred design with limited comparison to the secondary design. The third goal was to determine the static capacity of the preferred design. This will be accomplished through combined load testing per ISO 13679. The final goal was to determine if the static capacity of the connectors was affected by dynamic loading. This will be accomplished by fatigue testing to a percentage of the connectors expected life, followed by subsequent combinedload testing to ISO 13679. Statement of Theory and Definitions The designs were compared by fatigue testing with internal pressure to targeted cycles below failure with subsequent high-pressure hydrostatic test. Those that attained more cycles while maintaining their pressure integrity determined the preferred designs.
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.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
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 découle