A New Hydraulics Model for Slim Hole Drilling Applications

Hansen, Svein; Rommetveit, Rolv; Sterri, N.; Aas, B.; Merlo, Antonino

doi:10.2523/57579-ms

Cited by 8 publications

(8 citation statements)

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“…Hansen et al (1999) and Sterri et al (2000) observed that pressure drop increases with the increase in drill string rotation while the reverse behavior was reported by Hansen and Sterri (1995). In our case, we observed an increase in the pressure drop with the increase of drill string rotational speed, which is in accordance with most field observations.…”

Section: Momentum Balance Givessupporting

confidence: 91%

Hole-cleaning performance comparison of oil-based and water-based drilling fluids

Sayindla

Lund

Ytrehus

et al. 2017

Journal of Petroleum Science and Engineering

103

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Cuttings transport is a topic of great interest in the oil and gas drilling industry. Insufficient cuttings transport leads to several expensive problems. Knowledge and selection of the drilling fluids is one of the important factor for efficient hole cleaning. It has been observed, however, that the hole cleaning performance of drilling fluids can be different even if the fluid rheological properties are similar as measured in accordance with API specifications. The reasons for stated difference in the behavior of drilling fluids are not well understood. The main objective of present work is to evaluate hole cleaning efficiency of an oil-based drilling fluid (OBM) and a water-based drilling fluid (WBM) whose viscosity profiles are similar as per API specifications.Hole cleaning efficiency of an oil-based drilling fluid and a water-based drilling fluid whose rheological properties are similar was investigated. The fluids tested were industrial fluids used in the field and were sent to us after reconditioning. Experimental studies were performed on an advanced purpose-built flow-loop by varying flow velocities and drill string rotation rates. The flow loop had a 10 m long annulus section with 4" inner diameter wellbore and 2" outer diameter fully eccentric drill string. Pressure drop and sand holdup measurements were reported. Rheological investigations of the same fluids were used to understand the difference in the behavior of the drilling fluids tested. Higher pressure drop was observed for WBM compared to OBM, and for both fluids, the pressure drop increased with drill string rotation speed. In case of no drill string rotation, better hole cleaning performance was observed with the oil-based fluid compared to the water-based fluid. With the presence of drill string rotation, hole cleaning performance of both the fluids was nearly the same.

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Section: Momentum Balance Givessupporting

confidence: 91%

Hole-cleaning performance comparison of oil-based and water-based drilling fluids

Sayindla

Lund

Ytrehus

et al. 2017

Journal of Petroleum Science and Engineering

103

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show abstract

“…Subramanian and Azar (2000) have presented experimental data but with limited information on the fluid properties. Hansen et al (1999) provided experimental and modeling results for flow in annuli with and without rotation of the inner pipe for a series of non-Newtonian fluids. However, the tested Herschel-Bulkley fluids provided data only for laminar flow.…”

Section: Introductionmentioning

confidence: 99%

Experimental study and predictions of pressure losses of fluids modeled as Herschel–Bulkley in concentric and eccentric annuli in laminar, transitional and turbulent flows

Kelessidis

Dalamarinis

Maglione³

2011

Journal of Petroleum Science and Engineering

118

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“…In Figure 6, the comparison of predictions with experimental laminar flow results of Hansen et al (1999) is shown. Very good match is seen for the laminar flow data with slight underprediction for the points close to transitional flow.…”

Section: Resultsmentioning

confidence: 99%

“…More specifically, experimental data for laminar flow in concentric annulus, presented by Fordham et al (1991), Okafor and Evers (1992) and Hansen et al (1999) will be used for laminar flow. Similarly, controlled field data provided by Langlinais et al (1983) will be used to cover all three flow regime types, laminar, transitional and turbulent flows.…”

Section: Resultsmentioning

confidence: 99%

Laminar, transitional and turbulent flow of Herschel–Bulkley fluids in concentric annulus

Founargiotakis

Kelessidis

Maglione³

2008

Can J Chem Eng

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An integrated approach is presented for the flow of Herschel-Bulkley fluids in a concentric annulus, modelled as a slot, covering the full range of flow types, laminar, transitional, and turbulent flows. Prior analytical solutions for laminar flow are utilized. Turbulent flow solutions are developed using the Metzner-Reed Reynolds number after determining the local power law parameters as functions of flow geometry and the Herschel-Bulkley rheological parameters. The friction factor is estimated by modifying the pipe flow equation. Transitional flow is solved introducing transitional Reynolds numbers which are functions of the local power law index. Thus, an integrated, complete and consistent set, combining analytical, semi-analytical and empirical equations, is provided which describe fully the flow of Herschel-Bulkley fluids in concentric annuli, modelled as a slot. The comparison with experimental and simulator data from various sources shows very good agreement over the entire range of flow types.On présente une méthode intégrée pour l'écoulement des fluides d'Herschel-Bulkley dans un espace annulaire concentrique représenté par une fente, couvrant la gamme complète des types d'écoulement,à savoir laminaire, en transition et turbulent. Des solutions analytiques antérieures sont utilisées pour l'écoulement laminaire. Des solutions d'écoulement turbulent sontélaboréesà l'aide du nombre de Reynolds de Metzner-Reed après avoir déterminé les paramètres de loi de puissance locaux en fonction de la géométrie de l'écoulement et des paramètres rhéologiques d'Herschel-Bulkley. Le facteur de friction est estimé en modifiant l'équation d'écoulement dans un tube. L'écoulement en transition est résolu en introduisant les nombres de Reynolds exprimés en fonction de l'indice de loi de puissance local. Ainsi, un ensemble intégré, complet et consistant, combinant deséquations analytiques, semi-analytiques et empiriques, est fourni, qui décrit entièrement l'écoulement des fluides d'Herschel-Bulkley dans des espaces annulaires concentriques représentés par des fentes. La comparaison avec les données expérimentales et les données de simulateurs de diverses sources montre un très bon accord pour la gamme complète des types d'écoulement.

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A New Hydraulics Model for Slim Hole Drilling Applications

Cited by 8 publications

References 0 publications

Hole-cleaning performance comparison of oil-based and water-based drilling fluids

Hole-cleaning performance comparison of oil-based and water-based drilling fluids

Experimental study and predictions of pressure losses of fluids modeled as Herschel–Bulkley in concentric and eccentric annuli in laminar, transitional and turbulent flows

Laminar, transitional and turbulent flow of Herschel–Bulkley fluids in concentric annulus

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