Directional Core Drilling & Borehole Services

Doc no: 111433.1001 Revision: 6 Checked by: GV

Author: SL/RL Date: 30.09.2008

User Manual DeviFlex™

© Copyright Devico AS

All rights reserved. 1st Edition – 6th Revision – September, 2008 This work contains the confidential and proprietary information of Devico AS. Neither this document nor any information disclosed herein shall be reproduced in any form, or used, or disclosed to others for any purpose, including manufacturing, without the express written permission of Devico AS. THIS MANUAL IS PROVIDED FOR INFORMATIONAL AND ILLUSTRATION PURPOSES ONLY. ACTUAL FIELD CONDITIONS MAY VARY THE RESULTS OF DEVICO AS SERVICES AND PRODUCTS, AND NO INFORMATION, RESULT OR STATEMENT CONTAINED HEREIN SHALL BE CONSTRUED AS ANY TYPE OF REPRESENTATION, WARRANTY OR GUARANTEE BY DEVICO AS. THE OBLIGATIONS OF DEVICO AS FOR AND WITH RESPECT TO ITS SERVICES AND PRODUCTS ARE ENTIRELY SUBJECT TO INDEPENDENT, WRITTEN AGREEMENTS NEGOTIATED WITH INDIVIDUAL CLIENTS. CONSEQUENTLY, DEVICO AS SHALL HAVE NO LIABILITY FOR ANYTHING CONTAINED HEREIN. DeviFlex, DeviTool, DeviSoft, are trademarks of Devico AS. All other trademarks are the property of their respective owners. Revision history: 6/30.09.2008 5/06.11.2007 4/16.02.2006 3/02.06.2006 2/12.10.2005 1/17.09.2004 SL17092004/SFBG

I. Certification Devico AS certifies that this product met its published specifications at the time of shipment from workshop. Devico AS further certifies that its calibration measurements complies with and are traceable to the Company Standard, to the extend allowed by company's calibration facility, and to the calibration facilities accepted in the drilling branch to measure borehole inclination and azimuth as well as other related parameters.

II. Warranty This Devico AS product is warranted against defects in material and workmanship for a period of one year from the date of shipment. During the warranty period, Devico AS will, at its option, either repair or replace products which prove to be defective. For warranty service or repair, this product must be returned to a service facility at Devico’s workshop, Norway. Buyer shall prepay shipping charges to Devico AS and Devico AS shall prepay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to Devico AS from another country. Devico AS warrants that its software and hardware designated by Devico AS for use with an instrument will execute its programming instructions when properly installed on the instrument. Devico AS does not warrant that the operation of the instrument, or software, or hardware will be uninterrupted or error free.

III. Limitation on warranty The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by buyer; buyer supplied software or interfacing, unauthorized modification for the product, or improper site preparation or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. DEVICO AS SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The remedies provided herein are the Buyers sole and exclusive remedies. Devico AS shall not be liable for any direct, indirect, special, incidental, or consequential damages, whether based on contract, tort, or any other legal theory.

IV. Assistance You may have your DeviFlex™ repaired at Devico AS workshop at Melhus, Norway at anytime, whether it is under warranty or not. There is a charge for repairs after the one year warranty period. Product maintenance agreements and other customer assistance agreements are available for Devico AS products. For any assistance, contact your nearest Devico AS office, representative or dealer.

I.  Certification................................................................................................................... 3 II.  Warranty ....................................................................................................................... 3 III.  Limitation on warranty .................................................................................................. 3 IV.  Assistance .................................................................................................................... 3 PREFACE ........................................................................................................................... 5 INTRODUCTION ................................................................................................................. 6 HOW TO USE THIS MANUAL ............................................................................................ 7 SECTION ONE .................................................................................................................... 8 Mechanical Design .............................................................................................................. 8 1.  DeviFlex™ Mechanical Design ..................................................................................... 9 

1.1.  DeviFlex™ applications and specification ........................................................... 9 1.2.  DeviFlex™ components ....................................................................................... 9 

1.2.1.  Bull nose landing ring and shock absorber .................................................... 10 1.2.2.  Front extension body ..................................................................................... 10 1.2.3.  Centralizers .................................................................................................... 11 

1.3.  Rear extension body .......................................................................................... 11 1.3.1.  Direction sensor ............................................................................................. 11 1.3.2.  Electronics ..................................................................................................... 11 1.3.3.  Battery unit ..................................................................................................... 11 

1.4.  Rear centralizer with communication and charger connector ............................ 11 1.5.  Spearhead & pumping gasket ........................................................................... 12 

SECTION TWO ................................................................................................................. 13 Inspection, Assembling and Disassembling. ..................................................................... 13 2.  Inspection, assembling and disassembling ................................................................ 14 

2.1.  DeviFlex™ Inspection ........................................................................................ 15 2.1.1.  First time inspection ....................................................................................... 15 2.1.2.  Regular DeviFlex™ inspection ...................................................................... 15 

2.2.  DeviFlex™ Assembling ...................................................................................... 15 2.2.1.  Wheels ........................................................................................................... 16 2.2.2.  Changing spring loaded wheel ...................................................................... 16 2.2.3.  Changing fixed wheels ................................................................................... 16 

2.3.  Centralizer sleeves ............................................................................................ 17 2.4.  DeviFlex™ Disassembling ................................................................................. 17 

SECTION THREE ............................................................................................................. 18 Operation and Survey ....................................................................................................... 18 3.  DeviFlexTM operation and survey ................................................................................ 19 

3.1.  DeviFlex™ operation ......................................................................................... 19 3.2.  Running a DeviFlex™ survey ............................................................................ 19 

3.2.1.  Preparation .................................................................................................... 20 3.2.2.  Surface check ................................................................................................ 20 3.2.3.  DeviFlex™ assembly ..................................................................................... 20 3.2.4.  Starting the tool for the survey run ................................................................. 20 3.2.5.  Run in hole and positioning the tool at measurement stations ...................... 21 3.2.6.  Downloading survey data and data transfer to PC ........................................ 22 3.2.7.  Survey data manipulations ............................................................................ 22 

SECTION FOUR ............................................................................................................... 23 Support and Maintenance ................................................................................................. 23 4.  DeviFlex™ Support and Maintenance ........................................................................ 24 

4.1.  DeviFlex™ Part Numbers .................................................................................. 24 a.  DeviFlex™ handling, storage and shipping instructions .................................... 24 

Appendix ........................................................................................................................... 26 A.1. Wheels for DeviFlex™ ...................................................................................... 26 A.2. DeviSoft.Mobile ................................................................................................. 28 

PREFACE This manual is a guide to the successful operation of Devico’s DeviFlex™ non-magnetic surveying tool. It contains information which is necessary for understanding the operating principle, characteristics and application of the instrument. The manual consists of four sections: Section One – Mechanical Design Section Two – Inspection, Assembling, and Disassembling Section Three – Operation and Survey Section Four – Maintenance and Supporting Information For the effective application and optimum operation of DeviFlex™ multishot tool, it is recommended that the information contained in this manual is fully appreciated and understood.

INTRODUCTION Your DeviFlex™ is the non-magnetic multishot tool from the DeviTool™ family of surveying tools. It is based on Devico direction sensor technology. The tool is an easy to use electronically based multishot with programmable station spacing including virtually continuous reading and providing high accuracy. The borehole 3D trajectory coordinates, can be obtained by measuring borehole azimuth and inclination. This is done by surveying the borehole from surface to the bottom hole or depth of interest. The use of a suitable survey instrument to measure those values is of utmost importance. Measurements are performed at pre-determined depths/stations at which the azimuth and inclination angles are taken. By using this data, the borehole trajectory can be calculated and constructed. It can be presented graphically at 3 perpendicular planes (Elevation - North, Elevation - East and North - East). Moving a probe along the hole and sensing the movement of the probe relative to one or more frames of reference is accomplished in order to surveying a borehole. It may include the earth’s gravitational field, magnetic field or other inertial reference, and/or by sensing the distortion or bending of the housing of the probe itself. The surveying instruments are subdivided into two groups. The first major group consists of surveying instruments that use the earth’s magnetic field and are based on compass or magnetometers. Those instruments are known as magnetic instruments. The second major group consists of surveying instruments that use other reference system, but do not use the earth’s magnetic field. They are using gyro, laser beam or measuring distortion of sensitive beam. This group is called non-magnetic surveying instruments. DeviFlex™ does not use the earth’s magnetic field to determine the azimuth of the hole.

HOW TO USE THIS MANUAL This user manual has been designed for you to serve as a complete reference document for using your new DeviFlex™ survey tool. It covers mechanical and software parts as well as a section describing spare parts and tool maintenance that can be performed by end users. This manual is not aimed to discuss workshop testing, calibration and other specialized tool services. Please address Devico AS or a Devico representative for more detailed information in case you need that kind of services. Familiarize yourself with the DeviFlex™ tool by looking through this manual. The best way to feel at ease with the instrument is to sit down with this manual, the DeviFlex™ and your PDA and try to perform a surveying run. It will not take long time to become familiar with the instrument and the many features of the software. The PDA software is Windows™ based and used to control the instrument. The following sections will serve as a guide to direct you to the chapters in this manual. Familiarize yourself with the manual by reading through these descriptions. Section One – Mechanical Design This section contains a general information relating to DeviFlex™ construction, component design, component functioning and applications. Assembling and disassembling, specifications, performance and usage information are also given here. Section Two – Inspection, Assembling, and Disassembling Section Three – Operation and Survey Description of the surveying procedures, considerations and information supporting the usage of the DeviFlex™ and connected software are also discussed. Section Four – Maintenance and Supporting Information The last section includes topics related to the instrument maintenance, support and spare parts.

SECTION ONE Mechanical Design

1. DeviFlex™ Mechanical Design The DeviFlex™ is an electronically operated mechanical instrument, designed to survey boreholes. It is a PDA operated multishot that stores measured data in an internal memory. In this chapter the instruments applications, specification and design will be discussed. 1.1. DeviFlex™ applications and specification The DeviFlex™ surveying tool can only be used inside the drill rods. Environment where this is necessary is:

• Cased boreholes • Surveying boreholes adjacent to steel or other objects that locally alter the

direction of the earth's magnetic field. • Surveying boreholes in geo-magnetic disturbed field.

Table 1 DeviFlex™ Technical Specifications

Weight, kg: 20 Diameter, mm: 40 Length, mm: 4000 Battery capacity *: 80 hours Internal memory: 1984 stations Temperature, ºC: From – 15 to + 75 Pressure, bar: 300 Inclination range, deg: 0º - 180º Inclination, deg: ± 0.2º Direction, deg: ± 0.01º /station Tool Face (Gravity), deg: ± 0.2º

*5 sec survey logging interval 1.2. DeviFlex™ components The DeviFlex™ (Figure 1) instrument consists of two main units - Front and Rear unit. The main components of the front unit are:

• Bull nose • Landing ring • Shock absorber • Front centralizer • Front extension body

The rear unit consists of:

• Middle centralizer • Rear extension body, with direction sensor and battery unit • Rear centralizer with communication port • Spearhead and pumping gasket

Figure 1 DeviFlex™ main components.

All assembled for operation the DeviFlex™ length is 4.5m. 1.2.1. Bull nose landing ring and shock absorber The bull noose and the landing ring form the front part of the DeviFlex™. The bull nose leads the tool while running in hole. The landing ring sets the instrument to the landing shoulder of the wireline core barrel and avoids the instrument from entering the core barrel. The landing ring comes in various dimensions depending on the drill string design.

Figure 2 Bull nose landing ring and shock absorber

The shock absorber minimizes the landing shock and movement shocks during a survey run. It protects the tool from mechanical deformations and the electronics from high dynamic loads when the DeviFlex™ lands on the landing shoulder. The bull nose, the landing ring and shock absorber are forming a whole unit when mobilizing or demobilizing the surveying tool. 1.2.2. Front extension body The front extension body is part of the front unit and consists of a tube which is threaded in both ends. The front extension body connects the front centralizer with the middle centralizer.

1.2.3. Centralizers The DeviFlex™ has three sets of centralizers. Each centralizer consists of centralizer body, damper and three wheels. Two of the wheels are mounted directly on the centralizer body, whilst the third wheel is mounted on a damper body. The damper is fixed to the centralizer by two bolts and is spring loaded to keep the wheels pressed firmly towards the inside of the drill pipe or casing. Both the centralizers and the centralizer wheels are changeable in order to fit to different inside diameters (See appendix A.1.).

Figure 3 Rear centralizer

1.3. Rear extension body 1.3.1. Direction sensor The direction sensor is the heart of the surveying tool. During surveying the sensor measures the curvature of the hole at instrument location. Signals from the direction sensor, obtained during surveying, are sent to the electronics for storing and further processing. 1.3.2. Electronics The tool uses three accelerometers to measure the inclination and instrument tool face. The electronics is microprocessor controlled and collects the data obtained by the sensors during survey run. The electronics operates between 6 and 9 Volts. 1.3.3. Battery unit The battery unit consists of 6 NiMh rechargeable batteries. The batteries are charged by connecting the charger to the communication port on the rear centralizer of DeviFlex™. The charger will automatically sense when the batteries are fully charged and enter a trickle charge mode. Charge the batteries before surveying. 1.4. Rear centralizer with communication and charger connector The rear centralizer has a built in communication port for connection to the PDA and for charging the rechargeable battery pack of the DeviFlex™. During a survey the communication port is protected by a set of O-rings and a seal sleeve. The maximum outside water pressure should not exceed 300 bar.

Figure 4 Communication and charger connector located on rear centralizer

1.5. Spearhead & pumping gasket The pumping gasket and the spearhead are mounted at the rear centralizer of the survey tool. The pumping gasket gets the DeviFlex™ to the bottom of the hole by pumping the tool in the drill string. It contains a changeable rubber packing element.

Figure 5 Rear end with spear head and pumping gasket

The DeviFlex™ comes with a standard Longyear core barrel spearhead.

SECTION TWO

Inspection, Assembling and Disassembling.

2. Inspection, assembling and disassembling Your DeviFlex™ tool was engineered for ease of use, accuracy, and reliability. The instrument was carefully inspected and tested at Devico AS workshop before shipping and should be free of scratches and in proper working condition upon receipt. You should, however, inspect the instrument for any damage that might have occurred in transit. If the transport box or the cushioning material is damaged, it should be kept until the contents of the shipment have been checked and the instrument has been mechanically and electrically inspected. If there is any mechanical damage or the contents are incomplete, promptly notify the Devico office, representative or dealer. Please notify the carrier as well as the Devico offices, representatives or dealers in case of damage of shipping container. Save the shipping materials for the carrier. Figure 6 shows the break point between the front and rear unit. Further disassembling must never be performed since this may damage and cause malfunctioning of the tool. Only qualified Devico AS personnel can component check and make eventual replacements and repairs if required. In order to achieve long lasting and trouble free use of the DeviFlex™ tool special care must be taken. The information in this chapter covers the tool on-site inspection as well as assembling and disassembling before a survey run.

2.1. DeviFlex™ Inspection 2.1.1. First time inspection When you are unpacking the DeviFlex™ for the first time, make sure that the options that you ordered have been installed and/or included in your system. When you open the box, you will find the DeviFlex™ disassembled.

Figure 6 Break point is on the front side of the tool.

2.1.2. Regular DeviFlex™ inspection Before and after use, the DeviFlex™ tool should be subject to inspection. The inspection is aimed to locate any visible damages that might cause instrument malfunction. The following should be done:

• All visible components should be inspected. • Check the O-rings under seal sleeve (see figure 4). • Check pump seal and spear head (see figure 5). • Check that wheels are easily turned. If not, clean and grease. • Check that the spring-loaded wheel container can be moved.

2.2. DeviFlex™ Assembling When you open the transport box, you will find the tool demobilized. All you have to do before a survey is to fit together the front and rear DeviFlex™ units, and assemble the shock absorber and spear head assembly. Before assembling the units, threads should be cleaned and carefully inspected for damages. Make sure the threads are free from dirt and the O-rings are in place and not damaged. Thin film grease should be applied to the threads. Use the enclosed spanners to avoid damage on parts. Check the alignment of the spring loaded wheel on the front centralizer. After assembling, it should be on a line with the other two centralizers (See Figure 7).

Do not open tool in any other point than break point!

Aligned centralizers

Figure 7 Aligned centralizers

2.2.1. Wheels The DeviFlex™ is equipped with wheels that correspond with your drill rods. It is very important that you use wheels with the right dimension. There should be some resistance when you move the tool back and forth inside the rods. See attachment A.1. for detailed description of wheel sizes in various drill rods and casing.

Figure 8 Wheel container

2.2.2. Changing spring loaded wheel Unscrew the two Allen screws on the spring loaded wheel container. Remove the wheel shaft and replace the wheel. A thin layer of bearing grease should be added to the wheel shaft.

2.2.3. Changing fixed wheels Unscrew the Allen screw. Remove the wheel shaft using a 2mm alley key. Add some bearing grease on wheel shaft and assemble the wheel.

2.3. Centralizer sleeves For larger diameter holes, a centralizer sleeve has to be used. They come in 3 different dimensions: N-, H- and P-size. See attachment A.1. for which sleeves should be used in various drill rods and casing. The sleeves come with longer wheel shafts, different screw lengths and longer springs for the spring-loaded wheel. To add a centralizer sleeve, first remove the wheels and spring loaded wheel container on the original centralizer. Use the 6 setscrews to assemble the centralizer sleeve and add the wheels, new springs, new wheel shafts and screws. If the wheels are difficult to assemble, loosen the 6 setscrews and try again, re-tighten when the wheels are in place.

Figure 9 Centralizer sleeve

2.4. DeviFlex™ Disassembling Disassemble the tool at break point (Figure 6) using the open-end spanner and the special pipe-wrench. Remove the front shock absorber and the spear head assembly. Before placing the DeviFlex™ into its transport box, clean all parts, grease the wheels and put thread protection caps back on.

SECTION THREE

Operation and Survey

3. DeviFlexTM operation and survey This chapter covers the basic operation of the DeviFlex™ and describes how to effectively do a DeviFlex™ survey. 3.1. DeviFlex™ operation The DeviFlex™ survey tool uses digitized signals from state-of-the-art electronics, accelerometers, direction sensor and a microprocessor to sample and store data. Data from the accelerometers are used to determine the inclination of the tool with respect to vertical, whilst the direction sensor measures the curvature of the hole. This data is stored into the instruments internal memory and further dumped in the control device (PDA). After a measurement download, the curvature of the hole is transformed into a change in azimuth and a change in inclination. The sum of inclination changes obtained by the direction sensor may be compared to the accelerometer data recorded. This option allows to quality assurance data gathered during surveying. A second data security system is based on the inspection of the magnitude of the gravity vector. If the gravity vector deviates from the normal value at any point, the instrument has, most probably, not been stationary during the measurement at that survey station. In practice this allows sorting correct and unreliable data, if any. The DeviFlex™ survey tool is capable of taking 1984 shots in any orientation. The data from the tool is delivered to the operator in numerical form after ended survey. 3.2. Running a DeviFlex™ survey This chapter describes different methods of running a borehole survey using the DeviFlex™ surveying tool. In general, surveying with DeviFlex™ is very easy. There are certain procedures, which originate from the tool design and principles, however they are easy to understand and follow in order to achieve most favourable results. It is important to be aware of that borehole surveying using DeviFlex™ requires 1) correct start coordinates and 2) a continuous survey over the interval of interest. Those two points are dictated by the principle of the tool i.e. it measures the directions at each station relative to the previous station, thus the entire borehole/borehole interval. Borehole survey includes several steps. They are:

• Preparation • Surface check • DeviFlex™ assembly • Setting the tool for the survey run. • Run in hole and positioning the tool at measurement stations.

• Downloading raw data and data transfer to PC. • Survey data manipulations.

3.2.1. Preparation Charge DeviFlex™, Bluetooth modem and PDA before survey. 3.2.2. Surface check Check the following:

• Drill rig fastening, mast, hydraulic, mud pump, manifold, hose, swivel, ect. • Wire line winch and wire used for the survey job. • Borehole collar and rotation head/packer if any, water inflow, ect. • Availability and accuracy of depthometer/wire counter to measure correct

depth. • Drill rods inner diameter (ID). In case different sizes (drill rods with different

wall thickness in the drill string tally or external upset rods like for instance Boart Longyear composite wireline rod) make sure the DeviFlex™ passes through. Note! This will influence survey accuracy.

• Ask drill site personnel for drill rods wear, rust, scales, deformations and damages.

• Assure there is some water in the drill string. If not, fill it to reduce the DeviFlex™ landing impact or, if possible, use wireline to lower the DeviFlex™.

3.2.3. DeviFlex™ assembly Assemble the DeviFlex™ as instructed in chapter 6.2. Clean treads, remove scale or rust/sand carefully and apply grease. Remember that the DeviFlex™ wheels should be aligned after assembly. Check the following

• Check for damages and deformation on the tool. • Overshot type/size, make sure it fits the DeviFlex™ spearhead. • Size and wear of pumping seal. • Wheels size, wear and free rotation; grease if necessary. Make sure the

wheels and centralizers fit the drill rods used. • Landing (stop) ring size for the shock absorber. If Surveying in Hagby or Atlas

Copco drill rods, it’s possible to leave the inner tube inside to let the instrument land on the latching unit. In this case, the landing ring is not necessary.

• Do an online check. Battery status should be above 7.2V. When the DeviFlex™ is assembled, instruct drill site crew about the survey technology in order to avoid miss coordination, injuries, instrument damages, etc.

3.2.4. Starting the tool for the survey run Follow the instruction as described in appendix A.2. to start the DeviFlex™ before the survey run.

Make sure to set an appropriate Time interval to avoid the memory from filling up before the survey is completed. Normally a 15 or 20 sec Time interval is the optimal. See table 2 for DeviFlex™ operational time with different Time intervals. Start depth is calculated as Borehole depth – distance from hole bottom to landing ring. Depth interval should be set to 2, 3 or 4 meters. At normal conditions 4 m interval provides good quality survey data, while in boreholes with strong deviation (steered holes) 2 m interval is recommended. 3 m can be used when survey is done by pulling out the drill rods.

Table 2 Time interval and memory capacity Time Interval, sec

Operation Time, h : min

Time Interval, sec

Operation Time, h : min

5 02 : 40 35 18 : 40 10 05 : 20 40 21 : 40 15 08 : 00 45 24 : 40 20 10 : 40 50 26 : 40 25 13 : 20 55 29 : 20 30 16 : 00 60 32 : 00

3.2.5. Run in hole and positioning the tool at measurement stations When pumping down the instrument, slow down close to bottom to avoid hard landing and stuck DeviFlex™. There are several ways to run a DeviFlex™ survey. The recommended method is to run the instrument inside the drill string. The smooth and flat surface of the drill string allows for easy running the tool and performing the survey. The survey may be performed on the way down the hole or when the tool is pulled out of the hole. Out of the hole has proven to be most efficient and accurate. The survey may then be done while pulling the tool out with the wireline. With defined intervals of 4m or less the pulling is stopped, and a measurement is taken while the tool is standing still. If desired, the interval can be changed during the survey. Highest accuracy is achieved with short intervals (2m) in steered sections and long intervals (4m) in straighter sections. As an alternative, the survey can also be done by pulling out the drill string. A survey interval of 3 meter is then most convenient. Most accurate results are achieved if the drill string is rotated briefly between each station, i.e. between each measurement. If the borehole is close to vertical, i.e. inclination of -87º to -90º, rotation is not recommended.

3.2.6. Downloading survey data and data transfer to PC Follow the instruction as described in appendix A.2. to download, check, edit and transfer the survey data to a PDA. Check the quality of the results by comparing the inclination with the sum inclination. The difference should be less than about 2° per 300 surveyed meters. Another check is the gravity vector which should stay fairly constant at every survey station. Disassemble the DeviFlex™, clean carefully, put and store in the transport box. 3.2.7. Survey data manipulations Use DeviSoft or other software to manipulate the data and report the survey results. Contact the geologist to get the start coordinates of the surveyed borehole or use other method (total station, GPS etc.) to establish the start coordinates. The accuracy of the final results depends very much on the accuracy of the start coordinates and start direction.

SECTION FOUR

Support and Maintenance

4. DeviFlex™ Support and Maintenance The information in this chapter covers the handling, storage and shipping of the DeviFlex™. DeviFlex™. The chapter should be read carefully before the instrument is used. 4.1. DeviFlex™ Part Numbers Should you need to buy some spare parts, please contact your nearest authorized Devico distributor or Devico AS. For fast supply of the parts you need, please use the parts nr. in the list below.

Table 3 Parts for DeviFlex™ 40 Part Nr.

Item Part Nr.

Item

450137 Wheel 19.1mm 510037 O-ring 33x1.78 450070 Wheel 20.3mm 310421 O-ring 25x2 450103 Wheel 21.8mm 710010 Grease 450062 Wheel bolt Ø6x13.5mm 500030 Unbrako M4x6 450061 Wheel damper bolt Ø6x15mm 500002 Set screw M8x8 (N-size) 450048 Wheel damper 500024 Set screw M4x8 (N, H-size) 455004 Shock absorber Small 500056 Set screw M12x16 (N, H, P-size) 455015 Pumping unit Small 500053 Set screw M8x16 (H-size) 450115 N-Size Centralizer 500054 Set screw M8x25 (P-size) 450116 H-Size Centralizer 500055 Set screw M6x10 (P-size) 450133 P-Size Centralizer 450128 Wheel bolt Ø6x28.5mm 455005 Charger DeviFlex™ 450064 Wheel damper hex-screw (B-size) 455006 Com Adapter DeviFlex™ 450131 Wheel damper hex-screw (N-size) 445055 Bluetooth modem 450140 Wheel damper hex-screw (H-size) 445053 PDA, Dell 450146 Wheel damper hex-screw (P-size) 445054 PDA, Recon 450075 Wheel damper spring (B-size) 450138 Wheel damper spring (N-size) Tools 450144 Wheel damper spring (H-size) 450097 Wrench 34mm 450147 Wheel damper spring (P-size) 540051 Wrench adjustable 450136 Landing shoulder (BQ-Ø45) 450095 Wrench 50mm (N, H, P-size) 450074 Landing shoulder (NQ-Ø58) 440061 Allen key 3mm 450148 Landing shoulder (HQ-Ø76) 440063 Allen key 5mm 450149 Landing shoulder (PQ-Ø101.5) 440062 Allen key 4mm (N, H, P-size) 703609 Pumping seal (N-size) 541012 Allen key 6mm (N, H, P-size) 450163 Pumping seal (H-size) 541017 Allen key 2mm (N, H-size) 450162 Pumping seal (P-size) 541013 Allen key 8mm (N, H, P-size)

a. DeviFlex™ handling, storage and shipping instructions Your DeviFlex™ tool contains sensors that are sensitive to shock; the instrument should be handled with care. Also pay attention when handling a fully assembled tool to avoid high stress on the direction sensor located under the stainless steel tube at the middle of the instrument.

Store the instrument in a dry and shady place. Avoid excessive temperature, corrosive environment and mechanical stresses on the instrument. Should you need to ship your DeviFlex™, be sure it is packed in its transportation box to avoid transit damage. Such damage is not covered by the warranty. Attach a tag to the instrument identifying the owner and indicating the service or repair needed. Include the model number and full serial number of the DeviFlex™ tool. In any correspondence, identify the model and full serial number.

Appendix A.1. Wheels for DeviFlex™ DeviFlex™ 40 in drill rod

Manufacturer Drill Rod Size ID drillrod Wheel size OD Wheel partno. Centralizer-

Sleev partno. Longyear BQ 46mm 19,1mm 450137 No Longyear BRQHP 46,1mm 19,1mm 450137 No Longyear BQTK 48,4mm 21,8mm 450103 No Longyear NQ 60,3mm 19,1mm 450137 450115 Longyear NRQHP 60,3mm 19,1mm 450137 450115 Longyear HQ 77,8mm 19,1mm 450137 450116 Longyear PQ 103,2mm 19,1mm 450137 450133

Hagby 56/39 45,2mm 18,3mm 450063 No Hagby 56/42 47,5mm 20,3mm 450070 No Hagby 66 57mm 14,1mm 450156 450115 Hagby 76 64,4mm 23,2mm 450172 450115

Atlas Copco BK 46mm 19,1mm 450137 No Atlas Copco BGM 48,8mm 21,8mm 450103 No Atlas Copco NK 60,3mm 19,1mm 450137 450115 Atlas Copco NGM* 64,3mm 23,2mm 450172 450115 Atlas Copco HK 77,8mm 19,1mm 450137 450116 Atlas Copco PG 103,2mm 19,1mm 450137 450133

DeviFlex™ 60 in drill rod

Manufacturer Drill Rod Size ID drillrod Wheel size OD Wheel partno. Centralizer-

Sleev partno. Longyear NQ 60,3mm 25,1mm 450013 No

Hagby 66** 57mm 21,7mm 450014 No Hagby 76 64,4mm 29,15mm 450008 No

Atlas Copco NK 60,3mm 25,1mm 450013 No Atlas Copco NGM* 64,3mm 29,15mm 450008 No

* not pruduced any more, but may still be in use. ** centralizers must be machined.

DeviFlex™ 40 in casing

Manufacturer Casing Size ID Casing Wheel size OD Wheel partno. Centralizer-

Sleev partno. Longyear AW 48,4mm 21,7mm 450014 No Longyear BW 60,3mm 19,1mm 450137 450115 Longyear NW 76,2mm 17,5mm Special 450116 Longyear HW 101,6mm 17,5mm Special 450133 Longyear AX 50,8mm 23,8mm Special No Longyear BX 65,1mm 23,9mm Special 450115 Longyear NX 80,9mm 22,2mm Special 450116 Longyear HX 104,8mm 20,7mm Special 450133

Hagby 47mm 20,3mm 450070 No Hagby 57mm 14,1mm 450156 450115 Hagby 67mm 25,8mm Special 450115 Hagby 77mm 18,3mm 450063 450116 Hagby 88mm 29,15mm 450008 450116 Hagby 103mm 19,1mm 450137 450133

DeviFlex™ 60 in casing

Manufacturer Casing Size ID Casing Wheel size OD Wheel partno. Centralizer-

Sleev partno. Longyear BW 60,3mm 25,1mm 450013 No Longyear BX 65,1mm 29.15 450008 No

Hagby 57mm 21,7mm 450014 No

A.2. DeviSoft.Mobile For more detailed information about DeviSoft.Mobile operation procedures, see document “140200.1001 DeviSoft.Mobile User Manual.” To run a survey, follow these instructions carefully

Initial Menu

Create “Project” and “Hole” as described in the DeviSoft.Mobile user manual. Connect the Bluetooth or USB modem to the instrument, and establish connection between modem and PDA.

1. Tap “Online”

Online window Check that inclination and tool face updates, and corresponds to the instrument position. Battery status should higher than 7.2 V.

2. Tap “Back,” then “Survey”

Survey window Select start time, time interval and start depth. Start now, and an interval time of 15 sec to 1 min is normal. Start depth equals the depth of the landing ring.

3. Tap “Start”

When the modem has been disconnected and turned off, the DeviFlex™ is ready to be pumped down the drill string. Remember to close the seal sleeve first.

Survey Tap “Mark” to do a survey. Rotate the drill string between each measurement.

Tap “End” when the survey is finished and last mark had been taken

Insert depth Insert length of the last interval and tap “OK”.

4. Tap “Results”

Connect Bluetooth or USB modem to instrument and switch it on.

Load window Connection between the instrument and PDA is established when there is a green dot in the lower left corner and the “Load” button is highlighted.

5. Tap “Load”

Result window When data has downloaded check the results. Inaccurate results may be caused by instrument movement during survey.

6. Tap “Plot” to see borehole deviation

Plot Window Note borehole deviation in meters. Tap “Side View” and/or “Rotate” for further analysis.

Tap “Close” and “Back” to return to main menu

NOTES

Devico AS PBox 206

Varmboveien 2 7224 Melhus, NORWAY

tlf. + 47 7287 01 01 fax + 47 7287 01 11

e-mail: devico@devico.no

www.devico.no