Unlocking Marginal Field Potential via Fiber Optic Enabled Coiled Tubing Integrated Solutions
Notice bibliographique
Résumé
Abstract Abu field's production was declining due to the increasing water cut from its major producers. With water cut ranging from 50–90%, these wells needed gas lift to flow at their optimized conditions. The gas lift compressor (GLC) had been experiencing uptime problem since beginning of field production stage, which prevented it to be able to provide continuous support of gas lift supply for the field. Engine knocking problem and lube oil contamination are among the problems faced. This scenario had greatly impacted the gas lift optimization (GLOP) plan on high water cut (HWC) wells, hence affecting the field production. Due to lack of gas lift supply, it was proposed to convert Abu-X well from oil producer into gas producer by perforating the new C-Sand reservoir. This well would be used as gas source for well-to-well gas lift, in view of the rectification of the compressor issue will be prolonged. Abu-X was originally perforated at A-Sand and B-Sand, however it was able to produce only from A-Sand. It was then idle due HWC at 94% and required gas lift to flow. During the initial study, several identified wells would be utilizing this Abu-X gas, and the nodal analysis done showed an instantaneous incremental of 637 barrels of oil per day, which would help to boost Abu field's production. At required rate of 4 MMSCF/D and tubing head pressure (THP) of 1500 psia, this well would be able to sustain its supply for at least 1 year and recover 54% of the reserves i.e. almost 2.0 BSCF. Assuming the GLC will be able to back online and maintain its continuous operation; this well also can be used as future gas source for the GLC. The re-completion job of Abu-X to gas well was successfully conducted in April 2013. The intervention work, which utilized coiled tubing unit was deemed to be a challenging operation due to the massive scope of work and risk it imposed i.e. highly deviated well, top to bottom isolation-perforation target zone and thru-tubing gravel pack application. Nevertheless, a prudent and integrated approach involving all disciplines, had assisted in ensuring the viability of the project. The application of new technology like Double Ended Distributed Temperature Survey (DE-DTS) utilizing Real-Time Downhole Monitoring Coiled Tubing (1st such application in Asia) had helped to improve and optimize the well profiling. It eliminated the need for cementing job for B-Sand, hence the cost, and ensured a precision depth correlation in high deviation of Abu-X well. In addition, Thru Tubing Gravel Pack (TTGP) application would ensure the integrity of the wellbore from sand production, while at the same time contributed a huge cost saving of estimated RM 14 million, compared to conventional gravel pack done by the rigged operation. The well has been flowing the gas required for the gas lift for Abu field. With the current gas lift optimization is on-going, it is expected gas lifted well will boost and sustain Abu field production.
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 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,001 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,001 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,005 | 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 ».