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PDC bit design

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Proceedings Papers

Paper presented at the International Petroleum Technology Conference, January 13–15, 2020
Paper Number: IPTC-20030-MS
... the numerous PDC bit runs with one customized and reliable design that can overcome formation hardness and variations in compressive strength and maintain the same ROP to total depth (TD) with limited success, even though the idea of backup cutters has existed for decades. A new, durable PDC design...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 25–27, 2008
Paper Number: SPE-114673-MS
.... This paper presents new design features, guided by numerical predictions and the physical properties of actual PDC bit cuttings that reduce bit balling in PDC bits while drilling shales in water-based drilling muds. Validated by drilling simulator tests and field results, the new design criteria are shown...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175756-MS
...½-in PDC bits were developed that feature a central conical diamond element (CDE). The bit designs feature an abbreviated cutting structure profile at the bit center that generates a rock column that stabilizes the bit. The rock column is constantly being destroyed with axial force as opposed...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 10–13, 2014
Paper Number: SPE-171833-MS
... Abstract Almost all previous cutter force models assumed that cutting force was proportional to cutting area. Cutting-area-based single cutter force models have been extensively used in polycrystalline diamond compact (PDC) bit design optimization. This paper explains why cutting-area-based bit...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170465-MS
..., less blades in a PDC bit makes a more aggressive bit that is therefore harder to steer with. Historically Kuwait's 8.5″ sections are drilled with a 6 bladed bit design. While proving stable, such a medium-set bit design limits performance in these formations. The engineering process involved...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference and Exhibition, March 4–6, 2014
Paper Number: SPE-168006-MS
... concentric two-stage, dual-diameter PDC bit coupled with a low-speed, high-torque motor, providing an alternative solution for drilling a challenging section featuring a hard volcanic layer for a major international operator in a remote location West of Shetland. The paper reviews the design concepts...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 22–24, 2013
Paper Number: SPE-165817-MS
... technology was proposed to improve bit durability in the hard/abrasive volcanics and drill the entire 6" section in one run at a higher ROP. Recent bit and drilling data from offset wells was analyzed to assist in developing a new, cost effective PDC design to replace the expensive diamond-impregnated bits...
Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference & Exhibition, October 7–9, 2013
Paper Number: SPE-166750-MS
... technology was proposed to improve bit durability in the hard/abrasive volcanics and drill the entire 6" section in one run at a higher ROP. Recent bit and drilling data from offset wells was analyzed to assist in developing a new, cost effective PDC design to replace the expensive diamond-impregnated bits...
Proceedings Papers

Paper presented at the North Africa Technical Conference and Exhibition, April 15–17, 2013
Paper Number: SPE-164652-MS
... of existing PDC cutters to drill such formations. The findings led to the development of a new PDC bit design solution with high lateral and torsional stability capable of drilling with high drilling efficiency, the introduction of new cutter technology; along with optimised operating parameters...
Journal Articles
J Pet Technol 63 (12): 79–80.
Paper Number: SPE-1211-0079-JPT
Published: 01 December 2011
...Dennis Denney This article, written by Senior Technology Editor Dennis Denney, contains highlights of paper SPE 146561, ’Mitigation of Torsional Stick/Slip Vibrations in Oilwell Drilling Through PDC-Bit Design: Putting Theories to the Test,’ by Jayesh R. Jain, SPE, L.W. Ledgerwood III, SPE, Olivier...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 30–November 2, 2011
Paper Number: SPE-146561-MS
... of PDC bits were designed and manufactured. Each pair consisted of a bit with a standard design and a bit that embodied one of the theories. The bits were first tested in the laboratory to characterize their response. Full-scale wells were then drilled under controlled conditions using a research drill...
Proceedings Papers

Paper presented at the SPE/IADC Drilling Conference and Exhibition, March 1–3, 2011
Paper Number: SPE-139839-MS
... the moving cutter. Based on these experiments, a semi-empirical rate-dependent cutter-rock interaction model is developed, implemented in a bit design software and used to predict the velocity signature of various PDC bit designs. These predictions fit well with numerous experimental results obtained using...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-102640-MS
... rate, extended bit life and reduced bit trips. Advances in bit design and cutter technology are allowing PDC bits to be used repeatedly in this hard conglomerate interval in northern Mexico's Burgos basin. Previously the exclusive domain of IADC 417 to 537 insert rock bits, the heterogeneous formation...
Proceedings Papers

Paper presented at the International Oil Conference and Exhibition in Mexico, August 31–September 2, 2006
Paper Number: SPE-102232-MS
..., and introduction of new materials led to bit design adjustments based on hard rock drilling concepts. The resulting fixed cutter design, with high density cutters incorporating the latest-generation PDC cutter materials, achieved dramatic performance improvements. Where typical rock bit performance...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 22–26, 1985
Paper Number: SPE-14222-MS
..., the implications of that finding for PDC bit design and operation are examined. An abrasive wear model for cutters is developed and applied to rotary drilling applications to demonstrate the significance of thermally-accelerated wear on bit life. Under conditions where thermal effects are not important...
Journal Articles
J Pet Technol 41 (08): 797–849.
Paper Number: SPE-15619-PA
Published: 01 August 1989
... wear can have a significant effect on cutter and bit performances. 3 Abrasive wear is a strong function of the abrasiveness of the rock being cut and the stresses that develop at the cutter/rock interface. Designing and operating PDC bits to perform effectively within the constraints suggested...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206460-MS
...Abstract Abstract This article is a description of a comprehensive engineering approach to new designs of PDC (Polycrystalline Diamond Compact) Bits and bottomhole equipment for efficient horizontal wells drilling in the Yamal-Nenets Autonomous Okrug (YNAO) fields with Rotary Steerable Systems...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197359-MS
... a statistical approach that improves the reliability of the PDC bit design optimization process by ensuring that the expected directional behavior of the drill bit is robust over a well-defined range of drilling parameters. It is first examined how uncertainty propagates through an accurate bit/rock...
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 22–25, 2016
Paper Number: OTC-26776-MS
...OTC-26776-MS Optimized PDC Bit Designs for Percussion Performance Drilling System Deliver Higher Penetration Rates S Markandeya, D Merchant, and D Sha, National Oilwell Varco; S Zhoucheng and D Yonxian, CNPC Copyright 2016, Offshore Technology Conference This paper was prepared for presentation...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 22–24, 2013
Paper Number: SPE-165858-MS
... Application Specific 8 bladed, 16 mm cutter PDC Design for southern application Figure 10 New Application Specific 9 bladed, 16 mm cutter PDC Design for northern application Strategically positioned behind the primary cutting structure and in the critical wear areas of the bit are a second...

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