| bakerhughes.com CASE HISTORY GaugePro Echo Reamer and TesTrak Service Enable Drilling to Maximum Casing Depth in Exploratory Field Gulf of Mexico Results ■ Maintained balance and stayed within ECD limits ■ Saved valuable rig time ■ Provided real-time hole diameter updates ■ Extended section TD and maximized casing depth Background and challenges ■ Conventional deepwater exploratory well ■ Maximize casing depth in a well with unknown formation pressure gradients ■ Maintain a safe overbalance by measuring formation pressures in real time Baker Hughes solution ■ ■ ■ ■ ■ ■ When a major Gulf of Mexico deepwater operator wanted to maximize casing depth by eliminating as much rat hole as possible in an exploratory well, Baker Hughes initiated a one-run solution by integrating its GaugePro Echo™ on-command digital reamer with StaySharp™ cutter technology with the its AutoTrak™ G3 rotary steerable drilling system (RSS). The AutoTrak G3 RSS and GaugePro Echo reamer worked seamlessly with a sophisticated Baker Hughes logging-while-drilling (LWD) assembly capable of measuring formation pressures in real time. The LWD assembly included the TesTrak™ formation pressure-while-drilling service, which provides downhole formation pressure and mobility data. Using the TesTrak service’s SmartPad™ closedloop sealing and SmarTest™ intelligent testing systems, the operator was able to accurately measure formation pressures in real time to maintain pressure balance and prevent a kick. The assembly also included the ZoneTrak™ G near-bit gamma ray LWD service, which detected geological targets earlier while drilling. AutoTrak G3 RSS GaugePro Echo reamer LithoTrak service SoundTrak service TesTrak service ZoneTrak G service CASE HISTORY The TesTrak service’s SmarTest intelligent testing system helped measure formation pressures in real time to maintain pressure balance and prevent a kick. The LithoTrak™ advanced LWD porosity service delivered reliable neutron porosity and formation density logs at rapid sampling rates, while the SoundTrak™ acoustic LWD service employed proprietary acoustic technology to provide direct shear slowness measurements. This service integration provided the operator with the technologies needed—such as the GaugePro Echo reamer and the TesTrak service—to characterize formation pressure gradients in real time while safely maintaining circulation on the well. While equivalent circulating density (ECD) was still within acceptable limits, the operator maximized casing depth by activating the GaugePro Echo reamer to 14¾ in. via downlink. As a result, Baker Hughes helped the operator achieve its objectives at a much lower cost, saving an estimated 32 hours of rig time and USD 1.6 million. XXXX is a trademarks of Baker Hughes Incorporated. 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. © 2015 Baker Hughes Incorporated. All rights reserved. 42872 04/2015