Coiled Tubing Technology for Extending the Reach in Sand-Screen-Completed and Openhole Wells
- Authors
- Karim Elrashidi (Baker Hughes) | Silviu Livescu (Baker Hughes) | Tom Watkins (Baker Hughes) | Truong Phan (Baker Hughes)
- DOI
- https://doi.org/10.2118/182905-MS
- Document ID
- SPE-182905-MS
- Publisher
- Society of Petroleum Engineers
- Source
- Abu Dhabi International Petroleum Exhibition & Conference, 7-10 November, Abu Dhabi, UAE
- Publication Date
- 2016
- Document Type
- Conference Paper
- Language
- English
- ISBN
- 978-1-61399-503-7
- Copyright
- 2016. Society of Petroleum Engineers
- Disciplines
- 3 Production and Well Operations, 1.6 Drilling Operations, 2.7.1 Completion Fluids, 2.1.3 Completion Equipment, 1.10 Drilling Equipment, 1.6.1 Drill String Components and Drilling Tools (tubulars, jars, subs, stabilisers, reamers, etc), 2.5.2 Fracturing Materials (Fluids, Proppant), 2.4 Hydraulic Fracturing, 2 Well completion, 3 Production and Well Operations, 2.7 Completion Fluids, 1.6.6 Directional Drilling
- Keywords
- Extended-Reach, Lubricant, Sand Screen, Fluid Hammer Tool, Openhole
- Downloads
- 0 in the last 30 days
- 137 since 2007
- Show more detail
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Well intervention operations in extended-reach wells with sand, proppant, or other fill or in openhole wells are becoming important especially in the Middle East, where many exiting long openhole laterals need to be stimulated to maintain existing production. New laboratory and field results with a lubricant and a 2 ⅛-in. fluid hammer tool are shown to significantly increase the coiled tubing (CT) reach in laterals with sand. These results can be extended to openhole wells, as the coefficients of friction (CoF) between CT and metal casing completely covered with sand or an openhole are similar.
While theoretically increasing the CT diameter could extend the CT reach, in practice, this may not be always possible due to completion size limitations or logistical challenges with onshore road transport or offshore crane lifting/deck loading limitations. Hydraulic technologies such as fluid hammer tools and downhole tractors have extended the CT reach significantly in cased wells, but their successful application in long openhole laterals has not been reported in literature. In addition, metal-on-metal lubricants are used in cased wells with laterals longer than 10,000 ft, but their application in similarly long sand-screen-completed or long openhole laterals is much more limited due to the higher friction.
In this paper, laboratory and field results with a lubricant and a new 2 ⅛-in. fluid hammer tool are presented for sand-screen-completed wells. The lubricant was initially tested in laboratory for compatibility with representative formation rock samples. Given the fact that the lubricant itself contains a clay stabilizer component, it performs better than other commercial lubricants tested in low-, medium-, and high-permeability rock samples. The fluid pumped through the CT and 2 ⅛-in. fluid hammer tool creates pressure pulses with frequency of 8 Hz by opening and closing a valve inside the tool. These pressure pulses generate axial and radial forces that act simultaneously on counteracting the friction force between the CT and the formation: the axial force increases the bottom hole assembly (BHA) tensile load; and the radial force reduces the normal contact force, and thus the friction force. Combining the effects of the lubricant and the new 2 ⅛-in. fluid hammer tool in a pre-job CT modeling software results in CoFs reduced by 50-60%, from a default value of 0.36 without any friction reduction technology to 0.15-0.18 when both the lubricant and the tool are used. Laboratory testing with the lubricant alone showed that CoF between CT and a surface completely covered by sand decreases by 40-50%, from the default value of 0.36 to 0.18-0.22, for temperatures between 20 and 98°C. These CoFs were validated against field data from a sand-screen-completed well in the North Sea. Friction reduction of this magnitude is expected to significantly extend the CT reach in long openhole laterals.
In this paper, the lubricant and the new 2 ⅛-in. fluid hammer tool are briefly described and the data acquired during the laboratory testing and field operation is discussed. These results improve the current industry understanding of the CT friction in sand-filled cased wells and openhole wells and show great benefits in using the extended-reach CT technology consisting of the lubricant, the 2 ⅛-in. fluid hammer tool, and the CT modeling software for extending the CT reach in sand-filled cased and openhole laterals.
| File Size | 989 KB | Number of Pages | 14 |
Ahn, J. 2015. Achieving Economically Successful Coiled Tubing Composite Plug Drillouts in Extended Reach Wells. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 24-25 March. SPE-173665-MS. http://dx.doi.org/10.2118/173665-MS.
Barraez, R., Noland, J., Matheus, N.. 2014. Comprehensive Analysis of Metal-to-Metal Lubricants in Oil Shale Plays. Presented at SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition held in The Woodlands, TX, USA, 25-26 March. SPE-168280-MS. http://dx.doi.org/10.2118/168280-MS.
Castañeda, J.C., Castro, L., Craig, S.H.. 2010. Coiled-Tubing Fracturing: An Operational Review of a 43-Stage Barnett Shale Stimulation. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 23-24 March. SPE-130678-MS. http://dx.doi.org/10.2118/130678-MS.
Castro, L., Craig, S.H., Micheli, R.. 2015. Overcoming Extended-Reach Challenges for Annular Fracturing. SPE Productions & Operations. SPE-173683-PA. http://dx.doi.org/10.2118/173683-PA.
Craig, S.H. 2003. A Multi-Well Review of Coiled Tubing Force Matching. Presented at the SPE/ICoTA Coiled Tubing Conference, Houston, Texas, USA, 8-9 April. SPE-81715-MS. http://dx.doi.org/10.2118/81715-MS.
Cromer, C.M., Aviles, I., and Li, N. 2014. Composite: Is Multi-Plug Milling That Fast? Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 25-26 March. SPE-168301-MS. http://dx.doi.org/10.2118/168301-MS.
Griffin, J., and Nichols, C. 2012. Optimization of Coiled Tubing Extended Reach Practices in the Bakken Region: A Case Study. Presented at SPE Annual Technical Conference and Exhibition held in San Antonio, TX, USA, 8-10 October. SPE-159574-MS. http://dx.doi.org/10.2118/159574-MS.
Hilling, S., Ayling, G., and Yeung, J. 2012. Optimizing Coil Tubing Extended-Reach Capabilities Through Application of Downhole Friction Reduction Tools. Presented at SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition held in The Woodlands, TX, USA, 27-28 March. SPE-154290-MS. http://dx.doi.org/10.2118/154290-MS.
Kolle, J.J., Theimer, A.R., Fraser, A.W. 2016. Predicting the Extended Reach Capabilities of a Water-Hammer Tool with Variable Bypass Control. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 22-23 March. SPE-179067-MS. http://dx.doi.org/10.2118/179067-MS.
Livescu, S., and Watkins, T. 2014. Water Hammer Modeling in Extended Reach Wells. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 25-26 March. SPE-168297-MS. http://dx.doi.org/10.2118/168297-MS.
Livescu, S., and Wang, X. 2014. Analytical Downhole Temperature Model for Coiled Tubing Operations. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 25-26 March. SPE-168299-MS. http://dx.doi.org/10.2118/168299-MS.
Livescu, S., Craig, S.H., and Watkins, T. 2014a. Challenging the Industry's Understanding of the Mechanical Friction Reduction for Coiled Tubing Operations. Presented at the SPE Annual Technical Conference and Exhibition, Amsterdam, The Netherlands, 27-29 October. SPE-170635-MS. http://dx.doi.org/10.2118/170635-MS.
Livescu, S., Craig, S.H., and Watkins, T. 2014b. Smaller Coiled Tubing Diameter Achievable by the Use of Lubricants. Presented at the International Petroleum Technology Conference held in Kuala Lumpur, Malaysia, 10-12 December. IPTC-17815-MS. http://dx.doi.org/10.2523/17815-MS.
Livescu, S., and Craig, S.H. 2015. Increasing Lubricity of Downhole Fluids for Coiled-Tubing Operations. SPE Journal. SPE-168298-PA. http://dx.doi.org/10.2118/168298-PA.
Livescu, S., Craig, S.H., and Aitken, B. 2016. Fluid Hammer Effects on Coiled Tubing Friction in Extended-Reach Wells. SPE Journal. SPE-179100-PA. http://dx.doi.org/10.2118/179100-PA.
Macdonald, R., Vecseri, G., and Jennings, B. 2013. Investigation of Low-Frequency Water Hammer for Extended-Reach Applications. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 26-27 March. SPE-163883-MS. http://dx.doi.org/10.2118/163883-MS.
Misselbrook, J., Wilde, G., and Falk, K. 1991. The Development and Use of a Coiled-Tubing Simulation for Horizontal Applications. Presented at the SPE Annual Technical Conference and Exhibition, Dallas, Texas, USA, 6-9 October. SPE-22822-MS. http://dx.doi.org/10.2118/22822-MS.
Newman, K., Burnett, T.G., Pursell, J.C.. 2009. Modeling the Effect of a Downhole Vibrator. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 31 March-1 April. SPE-121752-MS. http://dx.doi.org/10.2118/121752-MS.
Newman, K., Kelleher, P.E., and Smalley, E. 2014. Extended Reach: Can We Reach Further? Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 25-26 March. SPE-168235-MS. http://dx.doi.org/10.2118/168235-MS.
Parra, D., Saada, T., Adeleke, J.. 2014. Fluid Hammer Tool Aided 1¾-in. Coiled Tubing Reach Total Depth in 6-in. Openhole Horizontal Well. Presented at the SPE Annual Caspian Technical Conference and Exhibition, Astana, Kazakhstan, 12-14 November. SPE-172286-MS. http://dx.doi.org/10.2118/172286-MS.
Pawlik, M., Champagne, J., Whitworth, J., . 2014. Optimizing Frac Mill Outs in Horizontal Wells using Coiled Tubing. Presented at the SPE/ICoTA Well Intervention and Coiled Tubing Conference and Exhibition, The Woodlands, Texas, USA, 25-26 March. SPE-168279-MS. http://dx.doi.org/10.2118/168279-MS.
Schneider, C.E., Craig, S., Castañeda, J.C.. 2011. The Effects of Water Hammer Tools on the Efficiencies of Coiled Tubing Plug Milling – A Comparative Best Practices Study. Presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 30 October – 2 November. SPE-147158-MS. http://dx.doi.org/10.2118/147158-MS.
Schneider, C.E., Castro, L., Craig, S.. 2012. The Effects of Fluid Hammer Tools and Lubricants on Plug Milling Efficiencies - A Comparative Study. Presented at the SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition, The Woodlands, Texas, USA, 27-28 March. SPE-154061-MS. http://dx.doi.org/10.2118/154061-MS.
