CASE HISTORY | bakerhughes.com Integrated Drilling Solution of Talon PDC Bit and AutoTrak G3 RSS Result in Longest Single Run in Complex Deepwater Field Location: Troll Field, North Sea Shelf, Norway 6500 Results nn16,597 100 10500 Interval, ft 120 ft (5 059 m) drilled in one run 80 12500 60 14500 nnROP ROP, ft/hr 8500 Talon PDC bits Drilled total of 16,597 ft Competitor 6-bladed PDC bits with 19 mm cutters Drilled total of 15,856 ft 40 16500 20 18500 of 98.8 ft/hr (30.1 m/hr) Challenges nnComplete the long horizontal 8½-in. section and open-hole sidetrack to TD in one run nnSteerability 0 C-Class Calcite % Competitor Drilled TD606X Drilled ROP and wellbore collision issues nnSandstone An operator drilling horizontally in Troll Field on the North Sea shelf wanted to complete a lengthy 8½-in. section and planned open-hole sidetrack to total depth (TD) in one run. Previous runs in the Troll Field encountered numerous unpredictable zones of calcite cementation as well as several wellbores in close proximity of each other, so reservoirs in this field present significant directional challenges. Bit steerability, stability, and durability to endure the run are critical factors in reaching total depth. To optimize the integrated bottomhole assembly (BHA) design, new procedures were developed that enabled drilling to total depth (TD) in one run. In collaboration with the customer, the Baker Hughes DART design application review team and Drilling Services team worked together to develop a solution. Baker Hughes recommended the Talon™ high-efficiency polycrystalline diamond compact (PDC) drill bit integrated with the AutoTrak™ G3 rotary steerable system (RSS), and CoPilot™ measurement-while-drilling (MWD) system. In addition, the Baker Hughes Reservoir Navigation Services provided active geosteering with azimuthal logging while drilling (LWD) data. The Talon bit’s StaySharp™ cutters and EZCurve™ directional technology maintained steerability and reduced vibrations to mitigate BHA tool failure. The AutoTrak G3 RSS provided precise well control and trajectory. The CoPilot MWD system delivered real-time drilling optimization data to optimize drilling performance. LUBE-622 biodegradable esterbased lubricant reduced torque and drag in water-based muds to quickly achieved high rates of penetration. formation with hard interbedded calcite cemented stringers Baker Hughes solution nnCollaboration between Baker Hughes Drilling Services, DART drill bits evaluation group, and the customer nnTalon high-efficiency PDC bit with StaySharp cutter technology and EZCurve directional technology nnAutoTrak nnLUBE-622 The operator was able to drill a record distance for Troll Field of 16,598 ft (5 059 m) including an open-hole sidetrack in one single run. ROP averaged 98.8 ft/hr (30.1 m/hr), 27% faster than the planned benchmark of 72.2 ft/hr (22.0 m/hr). Disclaimer of Liability: This information is provided for general information purposes only and is believed to be accurate as of the date hereof; however, Baker Hughes Incorporated and its affiliates do not make any warranties or representations of any kind regarding the information and disclaim all express and implied warranties or representations to the fullest extent permissible by law, including those of merchantability, fitness for a particular purpose or use, title, non-infringement, accuracy, correctness or completeness of the information provided herein. All information is furnished “as is” and without any license to distribute. The user agrees to assume all liabilities related to the use of or reliance on such information. BAKER HUGHES INCORPORATED AND ITS AFFILIATES SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, EXEMPLARY OR CONSEQUENTIAL DAMAGES FROM ANY CAUSE WHATSOEVER INCLUDING BUT NOT LIMITED TO ITS NEGLIGENCE. © 2014 Baker Hughes Incorporated. All rights reserved. 42361 01/2015 G3 RSS biodegradable lubricant