Field Data vs. Theoretical Model to Quantify Drilling Efficiency and Disruption - Archive ouverte HAL
Article Dans Une Revue SPE Drilling and Completion Année : 2000

Field Data vs. Theoretical Model to Quantify Drilling Efficiency and Disruption

Résumé

Mechanical and kinematics data at the bit have been collected during drilling operations and organized to identify optimal drilling efficiency. Transitional conditions towards abnormal behavior have been distinguished. Normal drilling is usually characterized by regular linear relationships between global control variables at the bit, which approximately correspond to an up scaling of a local Mohr Coulomb type failure mechanism of the rock. Most of our experimental data confirm this classical disposition. However, considerable departure from these relationships is noted, especially when there is BHA resonance or when there is partial balling at the bit. The field tests presented here allows us to verify classical theory and to draw up new guidelines for behavior in non- optimal or dangerous, evolving operating conditions, such as those that occur under poor cleaning conditions. The main features of a mechanical structuring model involving transition towards low efficiency conditions are presented, and it is shown how this model confirms our interpretation of field data. The model couples the drillability of rock and the general dynamics of the bit in an original and synthetic way. It makes it possible to understand and test the sensitivity of bit response to variables such as "weight on hook", torque on the drillstring and flow rate of the fluid.
Fichier principal
Vignette du fichier
putot1998.pdf (589.21 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00111303 , version 1 (04-09-2019)

Identifiants

Citer

Claude Putot, Philippe Perreau, Andrei Constantinescu. Field Data vs. Theoretical Model to Quantify Drilling Efficiency and Disruption. SPE Drilling and Completion, 2000, 15, pp.118-124. ⟨10.2118/50579-MS⟩. ⟨hal-00111303⟩
120 Consultations
116 Téléchargements

Altmetric

Partager

More