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Keywords: reamer
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Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, September 14–15, 2016
Paper Number: SPE-180342-MS
... the optimum performance. Seven wells, three drilled with PDC bits and four using hybrid bits were analyzed in Keathley Canyon and Garden Banks that drilled vertical intervals in salt using an 18⅛" pilot bit with 21" expandable reamer (except Run-1). All sections were drilled with a single BHA using...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, September 14–15, 2016
Paper Number: SPE-180287-MS
... and stability borders for dysfunctions like forward/backward whirl are in the focus of research of lateral vibrations, Bailey et al. 2010 . One of the main excitation sources of vibrations are cutting tools such as bits or reamers. For example, torsional vibrations such as stick-slip or high-frequency...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, June 20–21, 2012
Paper Number: SPE-151235-MS
... mysteries is the static and dynamic distribution of axial load between the bit and the reamer. This paper presents an approach using the explicit finite element method to model the static and dynamic interactions between the bit, the reamer and the formation of the BHA. The results for axial displacement...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, June 20–21, 2012
Paper Number: SPE-146501-MS
... pressure. Table 1 lists the various control features for the Integrated Under-Reamer compared to conventional tools. Table 1 Summary of the Integrated Under-Reamer tool control specifications compared to conventional underreamer designs. Requirement Conventional concentric reamer...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, October 5–6, 2010
Paper Number: SPE-137871-MS
... drilling performance. Matching of the bit and reamer to avoid these dysfunctions is not a simple process, and certainly is not resultant from simply having a similar cutter size in both cutting structures, or from compromising the rate of penetration potential of the bit. There are four indices...
Proceedings Papers

Paper presented at the SPE Deepwater Drilling and Completions Conference, October 5–6, 2010
Paper Number: SPE-137139-MS
... and overcome narrower operational mud window, well construction design typically accounts for multiple casing strings, thus the use of concentric under-reamers has become almost mandatory. In the last three years, much work has been done by service companies and operators to better understand bit and reamer...

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