Managing Drilling Vibrations Through BHA Design Optimization
- Jeffrey R. Bailey (ExxonMobil Upstream Research Company) | Stephen M. Remmert (RasGas Company Limited)
- Document ID
- Society of Petroleum Engineers
- SPE Drilling & Completion
- Publication Date
- December 2010
- Document Type
- Journal Paper
- 458 - 471
- 2010. Society of Petroleum Engineers
- 1.6 Drilling Operations, 1.10.1 Drill string components and drilling tools (tubulars, jars, subs, stabilisers, reamers, etc), 1.6.1 Drilling Operation Management, 1.4.1 BHA Design, 1.10 Drilling Equipment
- drilling performance, dynamic modeling, drilling vibrations, BHA optimization, BHA vibrations
- 4 in the last 30 days
- 1,859 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
Significant performance improvement has been achieved by successfully managing drilling vibrations through bottomhole-assembly (BHA) redesign. This effort has resulted in increased footage per day and reduced tool damage. Prior literature has described improvements in operating practices to manage vibrations (Dupriest et al. 2005; Remmert et al. 2007) as a key component of this rate-of-penetration management process. In a parallel work activity, BHA redesign efforts have provided additional performance improvements of approximately 36% in one drilling application. Dynamic modeling of the BHA has identified the key design changes leading to these improvements. The redesigned BHA has lower calculated vibration indices than the standard BHA.
The BHA design evaluation process uses a frequency-domain lateral dynamic model in both predrill forecast and post drill hindcast modes. BHA lateral vibrations are characterized such that alternative BHA configurations may be developed and compared directly with a proposed baseline assembly. In the hindcast mode, the BHA model can be operated at the recorded weight on bit (WOB) and revolutions per minute (RPM) to generate corresponding model results in time or depth, and these values can be compared with the measured performance data.
In one case study, the redesign of a BHA with downhole motor and roller reamer is described, with corresponding field data for four original BHAs and four redesigned assemblies. In a second application, model and field drilling results for two rotary-steerable assemblies are compared to evaluate the predictive ability of the model in smaller hole size and with different BHA types. Finally, the utility of the model to identify preferred rotary-speed "sweet spots" is demonstrated in a motor BHA operating in larger hole.
|File Size||7 MB||Number of Pages||14|
Bailey, J.R., Biediger, E.A.O., Gupta, V., Ertas, D., Elks, W.C., andDupriest, F.E. 2008a. DrillingVibrations Modeling and Field Validation. Paper SPE 112650 presented at theIADC/SPE Drilling Conference, Orlando, Florida, USA, 4-6 March. doi:10.2118/112650-MS.
Bailey, J.R., Biediger, E.A.O., Sundararaman, S., Carson, A.D., Elks, W.C.,and Dupriest, F.E. 2008b. Development and Application of a BHAVibrations Model. Paper IPTC 12737 presented at the International PetroleumTechnology Conference, Kuala Lumpur, 3-5 December. doi: 10.2523/12737-MS.
Bailey, J.R., Wang, L., Tenny, M.J., Armstrong, N. Zook, J.R., and Elks,W.C. Jr. 2010. Design Tools andWorkflows to Mitigate Drilling Vibrations. Paper SPE 135439 presented atthe SPE Annual Technical Conference and Exhibition, Florence, Italy, 19-22September. doi: 10.2118/135439-MS.
Dupriest, F.E., Witt, J.W., and Remmert, S.M. 2005. Maximizing ROP with Real TimeAnalysis of Digital Data and MSE. Paper IPTC 10607 presented at theInternational Petroleum Technology Conference, Doha, Qatar, 21-23 November.doi: 10.2523/10607-MS.
Remmert, S.M., Witt, J.W., and Dupriest, F.E. 2007. Implementation of ROP ManagementProcess in Qatar North Field. Paper SPE 105521 presented at the SPE/IADCDrilling Conference, Amsterdam, 20-22 February. doi: 10.2118/105521-MS.
Spanos, P.D. and Payne, M.L. 1992. Advances in Dynamic BottomholeAssembly Modeling and Dynamic Response Determination. Paper SPE 23905presented at the SPE/IADC Drilling Conference, New Orleans, 18-21 February.doi: 10.2118/23905-MS.
Steidel, R.F. 1989. An Introduction to Mechanical Vibrations, thirdedition. New York: John Wiley & Sons.