Drill string rotary speed influence on equivalent circulating density value

• Autorzy: Wiśniowski R. , Skrzypaszek K. , Kiebzak P.

Identyfikatory

DOI

10.7494/drill.2018.35.1.283

• Języki publikacji: EN

Abstrakty

EN

Presented article displays a debate about very complex and still not fully understood issue of drill string rotary speed (DSRS) impact on pressure losses in wellbore annulus, thus Equivalent Circulating Density (ECD) value. With the aim of exploring the topic, series of numerical simulations were conducted and presented in following paper. Real, field data from two already accomplished wells was used to recreate actual wellbores conditions in Halliburton Landmark Drilling Software and to calculate ECD values. Dedicated to check and confirm the program’s results accuracy, the outcomes were compared with pressure while drilling (PWD) equipment measurement results, collected during drilling operations. Collaterally, numerical simulations were made in order to analyze how drill string rotary speed shifts may affect overall ECD value, especially in deviated and horizontal wellbore sections. Simultaneously, both rate of penetration and flowrate were modeled to imitate poor and good cleaning conditions. Additionally with the object of confronting received results, in the article are included outcomes of other researchers conducted by T. Hemphill and K. Ravi (2011), I. Kjøsens, G. Løklingholm et al. (2003). Similarly to above mentioned papers, analysis and interpretation of collected data gave contrary conclusions. In other words DSRS can positively impact optimization of ECD value but in the same time cause growth of ECD parameter, depending on current wellbore conditions.

Słowa kluczowe

EN

ECD optimization; drill string rotary speed; equivalent circulating density; wellbore pressure management

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: AGH Drilling, Oil, Gas
• Rocznik: 2018
• Tom: Vol. 35, no. 1
• Strony: 283--294
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Wiśniowski R.

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, Krakow, Poland

autor

Skrzypaszek K.

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, Krakow, Poland

autor

Kiebzak P.

• AGH University of Science and Technology, Faculty of Drilling, Oil and Gas, Krakow, Poland

Bibliografia

• [1] https://www.bp.com/content/dam/bp/en/corporate/pdf/energy-economics/energyoutlook/bp-energy-outlook-2018.pdf [access: February 2018].
• [2] Kiebzak P.: Equivalent circulating density (ECD) value impact on optimization of drill string elements selection process in oil wells. Master Thesis, Wydział Wiertnictwa, Nafty i Gazu AGH, Kraków 2016.
• [3] http://www.iwcf.org/images/pdfs/formula_sheets/drilling/QA-RD7CE-V8_English_ Metric_0.0981_Formula_Sheet.pdf [access: February 2016].
• [4] http://www.drillingformulas.com/calcuate-annular-pressure-loss/ [February 2018]
• [5] Halliburton Landmark Software Manual, Faculty of Drilling, Oil and Gas at AGH UST License; Quotation no.: 22159269.
• [6] Charlez A., Easton M., Morrice G. et al.: Validation of Advanced Hydraulic Modeling using PWD Data. Paper OTC 8804, 1998.
• [7] Isambourg P., Brangetto M., Bertin D.L.: Field Hydraulic Tests Improve HPHT Drilling Safety and Performance. Paper SPE 59527, 1998.
• [8] Hemphill T., Ravi K.: Improved Prediction of ECD with Drill Pipe Rotation. International Petroleum Technology Conference, 2011.
• [9] Ahmed R., Miska S.: Experimental Study and Modeling of Yield Power-Law Fluid Flow in Annuli with Pipe Rotation. Paper IADC/SPE 112604, 2008.
• [10] Kjøsens G. Løklingholm et al.: Successful Water Based Drilling Fluid Design for Optimizing Hole Cleaning and Hole Stability. Paper SPE/IADC, 2003.
• [11] Thorbjorn Lejon Skjold: Drillpipe Rotation Effects on Pressure losses. Norwegian UST Department of Petroleum Engineering and Applied Geophysics, 2012.
• [12] K&M Technology Group. Training Materials, 2015.
• [13] Wiśniowski R.: Wybrane aspekty projektowania konstrukcji otworów kierunkowych z wykorzystaniem technik numerycznych. AGH, Kraków 2002.
• [14] Wójcikowski A.: Wykonywanie pomiarów płuczki wiertniczej i specjalnej 311[40].Z2.0. Instytut Technologii Eksploatacji – Państwowy Instytut Badawczy, Radom 2007.
• [15] Skalle P.: Drilling Fluid Engineering. Pål Skalle & Ventus Publishing ApS, 2010.

Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).