Technical Data S ummary 8¼-in. MagTrak The Baker Hughes MagTrak™ LWD Magnetic Resonance service provides industry standard T2 magnetic resonance logging data to accurately characterize the penetrated formations and to estimate reserves while drilling. A unique feature of MR data is to differentiate bound fluids from moveable fluids. When the moveable fluids are hydrocarbons (HC), the producible reserves can be directly calculated. The MagTrak system design is vibrationtolerant and allows for real-time LWD MR measurements under the toughest drilling conditions. This provides significant cost savings as no non-productive time (NPT) is encountered due to relogging operations. Our service delivers the industry's finest vertical resolution of any LWD MR tools. This enables easy integration of the various LWD measurements to better characterize the reservoir. It is especially useful in complex reservoirs, because the MR porosity measurement is lithology-independent. Features Industry-standard MR data while drilling Vibration-tolerant design High vertical resolution MagTrak capabilities include real-time (RT) T2 distributions for decisions while drilling. It can be used to identify fluid and rock property changes, pick points for TesTrak™ formation pressure testing, and helps placing the wellbore in the sweet spot of the reservoir. All raw data are stored and used for post-job processing. Deliverables are a standard MR log presentation including porosity, moveable and bound fluid fractions, pore space characterization, pore fluid saturations, and permeability estimation. Sufficient power is ensured by an integrated alternator even in high-conductive muds. For ease of operation, the MagTrak system has pre-programmed acquisition modes that cover a wide range of downhole formation and fluid properties. No complex pre-job planning is required. Benefits No NPT by avoiding measurement after drilling Formation evaluation in real-time Logging of highly inclined wells High quality T2 measurements while drilling Identify and quantify thin beds Net-to-Gross in laminated intervals Accurate lithology-independent porosity Accurate reserve estimates also in complex reservoirs Short inter-echo time spacing Accurate clay-bound and irreducible water Zone of investigation within the formation Data free of borehole effects Customer-defined measurements Tailored service for special applications Measurement without radioactive sources No hassle in handing and licensing sources MagTrak LWD MR real-time deliverables: Total and effective porosity Moveable, irreducible, clay-bound fluids Permeability index Pore space characterization Light HC indication RT T2 distribution (optional) Data quality indicator Quality and productivity of the reservoir Geosteering, geostopping, completion, etc. Faster decisions on side tracking Details about complex lithologies High confidence in the measured data 8¼-in. MagTrak ©2014-2014 Baker Hughes Incorporated. All rights reserved. MTK-70-01-003 Rev. A Technical Data S ummary 8¼-in. MagTrak Specifications and Limits for 12¼ General Tool Specifications Borehole size (dependent upon borehole conditions, requires near full stabilization) US Units 12¼ in. SI Units 311 mm Sensor OD (C) 10⅝ in. 270 mm Stabilization requirement ⅛ in. under gauge 3.2 m under gauge It is recommended to run a flex sub below MagTrak to reduce bending moment on MagTrak. However maximum DLS (Dogleg Severity) values are application-specific and a function of various parameters such as BHA configurations, well profiles and drilling modes (build, drop or hold). For optimum tool capabilities and limits, expert company advice is required (BHASYS PRO). Total length (A) 24.3 ft 7,407 mm Total weight 4,630 lb 2,100 kg Inner diameter 2.56 in. 65 mm Effective flow area1) 25% Power Source Drilling fluid-driven turbine Connections top/bottom BHI Mod. Box2) / BHI Mod. Pin2) 1) 2) Available area for mud flow To connect to Baker Hughes components only Sensor Specifications Sensor distance from bottom of tool (B) Sensor aperture3) (static vertical resolution) resolution4) Vertical @ ROP 50 ft/h Diameter of investigation5) Precision Inter-echo time Number of echoes Resonance frequency Effective magnetic gradient6) 3) 4) 5) 6) US Units SI Units 5.22 ft 1.593 m 4.6 in. 116 mm 5.8 in. 18 in. 147 mm 457 mm ±1 pu Standard: 0.6 ms / 0.4 ms Typically: 1,000 460 kHz nominal -2.4 Gs/cm Operating Specifications and Limits US Units SI Units Flow Rate Low flow 423–660 gpm 1.600–2,500 lpm Normal flow 476–872 gpm 1,800–3,300 lpm High flow 608–1,110 gpm 2,300–4,200 lpm Maximum WOB 528 klb 2,400 kN Maximum drilling torque 35 kft-lb 48 kNm Maximum torque to failure 75 kft-lb 102 kNm Overpull w/o rotation (continued operation) 1,125 klb 5,000 kN Maximum overpull to failure w/o rotation 1,500 klb 6,700 kN Operating Temperature Limits Maximum 302°F 150°C Minimum 32°F 0°C Maximum hydrostatic pressure 25,000 / 30,000 psi 1,725 / 2,068 bar Mud types No hematite, no iron sponge No restrictions for Rm = >0.1 ohm-m, for applications with Rm <0.1 ohm-m please Mud resistivity consult your BHI representative for proper pre-job planning. Ditch magnets required Cleaning every 12 circulation hours Refer to Supplemental Technical Maximum axial, lateral and torsional Specification Document vibration TDS-20-60-0000-00. Regarding rpm, sand content and LCM, please refer to the technical data sheets of the applicable MWD platforms (e.g. OnTrak™, NaviTrak™)" 4 GB, equivalent to max. Memory 1,800 hours logging time 95% signal pickup @ high resistive mud, 25°C, medium oil, 4 echo train running average, ±1 pu accuracy. Vertical Resolution depends on mud type, temperature, hydrocarbon type. Example: VR is 3.1 ft for 0.1 Ohm-m, 100°C, light oil Diameter of sensitive volume, measured at center of gravity With received MR signal amplitude weighted gradient Drilling Services 2001 Rankin Road Houston, Texas 77073 Phone: +1 713-625-4200 www.bakerhughes.com Although the information contained herein is believed to be accurate, no other representations are made concerning the information. Under no circumstances shall Baker Hughes be liable for any incorrect or incomplete information. All technical specifications and commercial information concerning the product and/or services described herein may be changed at any time without further notice. Refer to Supplemental Technical Specifications (TDS-20-60-0000-00) for further environmental specific specifications and information on the application, operation, and handling of Baker Hughes tools. Technical Data Summaries are controlled documents and can only be released through the BHOS – Global Ops/AMO Documentation Group. MTK-70-01-003