AD250 USER MANUAL - Reservoir Engineering by Acoustic Data
Contents
1. ACOUSTIC DATA NI Real Time Well Technology AD250 USER MANUAL USAGE INSTRUCTIONS FOR THE AD250 SYSTEM Document Number AD250 MAN 0001 02 Date 09 Dec 2012 Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 REVISION HISTORY Revision Author Checked Date Notes 02 M Waters M Tolley 9 Dec 2012 Fix Typo and Pagination CONTENTS PROVISION FISTO e NER treet conan rcs E TOUT ES 2 t GENERALINFORMA TON EE 4 tl USS or MNS MUA ia E Seareisseesuendacddeant sue seceesteineiee 4 1 2 Validity Of d Manual E 4 F Usool FI CTO CU Et 4 Jr AS c M 4 2 IMPORTANT SAFETY INSTRUCTIONS enne trn nane k an nna ag oon nan sb rds cH an n sb n ccc Men ka Examen 4 EE e CGA E eceeaen amet oo E E E E 4 2 2 Warnings regarding use Of the Gaugde nennen nnne nnn nnn nnne nnne nis 5 2 3 Guarantee Specifications eessessesssessseessesese nennen nennen nnn nnn nnne rsen ne anser nnns 5 3 THE ie e e eet BEE 6 CX PEE Ce 3 aiu MEUM 7 3 1 1 Welded Gauge Mount 7 S2 NEE 7 9 1 9 Wireline Re e ie seins ern oct cctv acai reel cad ud mcs Due DUE UE 8 3 2 Gauge Operating Schedule s seessssssssesssesesseeeeseene sn nnnnnnnn n nsna nnne ars sa snas a nnns 8 Se EES 9 3 4 Retrieving the Gauge after deplovment nennen nnn nns 10 3 5 Battery Installation or Replacement nennen nennen nnns 112. e The bleed screw must be opened before the Gauge can be considered safe to transport This should only be performed by a person with adequate personal protective equipment This should include as a minimum a full face visor hand and arm protection e Make sure the gauge is opened in a well ventilated area e Open the bleed screw slowly until at least 5mm of thread are visible e f any gas or liquid is released the batteries should be considered damaged and handled in accordance with local ordinances regarding vented Lithium Metal batteries The manufacturer s websites have more information on this e In any instance a damaged Lithium Metal battery is forbidden to be shipped on aircraft of any type ZA Title AD250 User Manual ACOUSTIC DATA Documentno AD250 MAN 0001 02 KH Real Time Well T ML Date 09 Dec 2012 3 5 Battery Installation or Replacement The Downhole Gauges batteries may be replaced by the user if required It is preferable that the Gauge is sent back to Acoustic Data to perform this process as the Gauge may be functionally tested at the same time We understand however that where deployments are frequent the user may wish to perform this function themselves If a battery replacement is to be performed the following equipment will be required e Aclean and well lit workshop environment e A pipe vice or similar with shaped jaws that will allow the tubular section of the gauge containing the batteries to be held secure
3. Wellhead Sensor Zener Barrier Figure 4 1 Wellhead Sensor and Zener Barrier Physical Type Accelerometer Monitran MTN 1100IC Height Diameter 25 mm ATEX amp IECEx Certified Group Il Intrinsically Safe Accelerometer to Ex ia IIC T6 41 mm Hazardous Zone Rating Cabling Overbraided twin core screened ETFE cable 10 m Extensions may be made by use of junction box and cable glands Cable length available on request Mounting Metal Plate fixed to a wellhead bolt or optional Magnetic Mount MMO01 Environmental Temperature rating T6 55 C lt Ta lt 65 C IP rating IP67 Table 4 1 Wellhead Sensor Specifications 4 1 Sensor Wire Routing The sensor wire should be routed to the location of the Receiver Unit by which ever means is appropriate under local ordinances and appropriate to whichever hazardous zone the accelerometer is mounted in this varies around the world but is usually an ATEX Zone 1 environment Title AD250 User Manual A ACOUSTIC DATA Documentno AD250 MAN 0001 02 SZ Real Time Well Technology Date 09 Dec 2012 5 THE RECEIVER UNIT ACOUSTIC DATA Number Description OLED Display LED Indicators for Power Network Ethernet RS485 and Acoustic Data Menu Navigation Keypad Power Terminal Mains and DC RS485 Terminal Isolated Ethernet Network Connector SD Card Slot USB Connector Wellhead Sensor Terminal an O Din rail clips Figure 5 1 T
4. fire electric shock or injury to persons 4 The AD250 decoder is designed to be permanently connected to an AC and or DC electrical system Installation of and work on the AD250 system may be carried out only by a qualified authorised and trained technician or electrician in compliance with the locally applicable standards and regulations 5 Make sure all wiring is properly installed and in good electrical condition and that the wire size is large enough for the AC ampere rating of the AD250 decoder Check the wiring on a regular basis at least once a year Do not use the AD250 if the wiring is damaged 6 Do not operate the AD250 Receiver Unit if it has received a sharp blow been dropped or otherwise damaged in any way take it to a qualified serviceman 7 Except for the Downhole Gauge battery section the AD250 Gauge Wellhead Sensor or Receiver Unit may not be opened or disassembled There are no serviceable parts inside the housing Take it to a qualified authorized and trained serviceman when service or repair is required Incorrect reassembly risks damage to equipment or facilities Only qualified electricians are authorized to open the housing 8 To reduce the risk of electric shock disconnect the AD250 decoder from the AC DC and pickup electrical systems before attempting any maintenance or cleaning ACOUSTIC DATA Document No Date 9 The Zener Barrier must be provided with an appropriate equipment
5. of installations the user will simply start the application and wait for data to arrive With reference to Figur 5 4 when the logging application is first started the data light will illuminate for about 3 seconds The application status information will display Starting After starting the application status information will display Logging During the initial period the unit will adjust various internal settings to optimise the unit for the prevailing noise conditions During this time the unit will set the optimum detection threshold possible to retrieve low strength signals The system will wait for an acoustic data packet to be received and successfully decoded Once successfully decoded the system learns from the received data and will adjust its internal settings accordingly The application status information will change to Locked Internal settings are now optomized and set The system is capable of adjusting its internal settings in the locked state to cope with any changes in noise condition and or signal strength Once the system has decoded a pressure and temperature data packet the main screen will update from displaying No Data to display the information contained in the last received packet Previously received data may be reviewed by pressing the Left and Right Navigation Buttons The last 10 readings are available by scrolling Whilst the AD250 application is running the Navigation Buttons ha
6. the AD250 P amp T Logging menu Launch AD250 Log will appear Press OK or RIGHT keys again to run the AD250 P amp T logging application or press DOWN and OK or RIGHT keys to enter the application settings menu p For the most part changes to the application o settings should only be made by a qualified Acoustic Data Technician or by a qualified technician AD250 Settings Menu Description Default Values l Change display units for Pressure and Pressure bar absolute Display Units o Temperature Temperature C Allows detection threshold to be set Manual Mode manually Off Acoustic Data Technicians only Acoustic Data Technicians only Signal Settings Automatic Gain Control Settings Acoustic Data Technicians only Acoustic Data Technicians only Detection Settings Detection Threshold Settings Various Acoustic Data Technicians only Filter Settings Filter and Noise Reduction settings varois Acoustic Data Technicians only Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 Application Status Information Current Time Last P amp T Result Result Timestamp Gauge ID P amp T Result Figure 5 5 AD250 Application s Main Screen 5 4 2 1 Understanding the AD250 application flow The AD250 P amp T logging application is by default fully automatic and should cope with most background noise conditions including changeable conditions In the majority
7. your situation The following description of methods is not designed to be exhaustive Any installation method must allow the gauge to be firmly mounted to the production 3 1 1 WELDED GAUGE MOUNT The simplest mounting method is to use our welded gauge mount This allows the gauge to be mounted externally on the production tubular In this instance the internal diameter of the casing must be large enough to accommodate both the production tubular and the gauge SV A Figure 3 2 Welded Gauge Mount Consult drawings 1 and 2 for more information available form Acoustic Data upon request The Welded Gauge Mount is Suitable when e The Gauge can be run in hole on the tubing during a well completion or work over e When measurement of annular pressure is required e When the most economical solution must be sought e f Gauge retrieval is not required during life of deployment 3 1 2 INLINE COLLAR MOUNT Figure 3 3 Inline Collar Gauge Mount The Collar Mount is Suitable when e The Gauge can be run in hole on the tubing during a well completion or work over e When measurement of internal tubing pressure is required e If Gauge retrieval is not required during life of deployment Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 3 1 3 WIRELINE DEPLOYMENT The AD250 can be installed in a well via a wireline operation This method allows wells that are not scheduled for
8. 1 in 10 temp measurements In this instance the Gauge is initially setup to take and send a reading every 10 minutes This is useful during deployment so that signal integrity can be monitored as the tool is run in hole The second schedule starts after 1 day 24 hours At this point the gauge switches to a much lower data rate to provide the best battery life and only sends a temperature measurement once per week 24 7 6 The third schedule provides a period of faster data rate Pressure and Temperature are measured every 10 seconds and stored to memory whilst the gauge sends a pressure measurement every 60 samples 10 minutes and does not send Temperature data In this manner a prescheduled pressure build up test may be monitored and the entire pressure build up can be downloaded from the gauge when it is retrieved at some future well work over After 36 hours the fourth schedule puts the gauge back into long term monitoring mode for the rest of its life or if programmed until the next Schedule occurs 3 3 Turning the Gauge On Once the measurement schedule has been advised by the user and the downhole gauge units programmed accordingly by Acoustic Data activation of a gauge at wellsite is a simple process The bleed screw activation switch on the end of the gauge is turned clockwise using an 8mm spanner until tight The gauge is then installed onto its mount Title AD250 User Manual ACOUSTIC DATA Document No AD2
9. 50 MAN 0001 02 Date 09 Dec 2012 Tightening the bleed screw simultaneously seals the gauge and connects the gauge battery pack The gauge will then start working through the Gauge Schedule the first signal occurring after 1 minute WARNING The bleed screw is a critical safety device of the AD250 Downhole Gauge By necessity it opens a path from the Gauge internals to atmosphere to allow internal gasses or fluids to be released in the event of a battery failure or a body leak Failure to tighten the bleed screw before deployment will result in a failure of the pressure integrity of the Downhole Gauge i e it will leak immediately 3 4 Retrieving the Gauge after deployment WARNING Safe work procedures of the wellsite operator must be adhered to No instruction in this User Manual expressed or implied shall relieve the user of their responsibility to perform their own risk assessment in accordance with local standards When a Gauge is retrieved from the well it is important to ensure that the gauge is made safe for transport e Make sure the area that the Gauge is to be unloaded into is safe at the time of retrieval This is typically performed under a hot work permit or similar local standard e CHECK Was the Gauge known to be working when retrieved from the well are there any signs of damage to the gauge upon first inspection is there any reason to suspect that the Gauge may have leaked If so open the bleed screw with caution
10. Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 39 1 Suitable mici CS TEE E LOT TOO TOT 4 THE WELLHEAD SENSOR E Aids Sensor Wire ROUNDO essensen T TT wem 9 THE RECEIVER UNT eree E M UpUDU DU Ud de tpasuuN AU Du EM S MEE ice E e ET e me DRE ET erm 5 2 Electrical CGonnechons nnne Rnn enne nh enne remeresresessasessasessasessa sesso ena 5 22 RO 485 MODBUS HR RE 5 2 9 Ethernet MODBUS TOP E S MEN 5 2 5 Wellhead Sensor via Zener Baier 5 3 The COMMOA KMS ae irconcerea vines aowsievauturtdnnasinunrdiusvewstuscdsumddvencducemuenten dined anaE ENA SEENON EEEE Eaa 5 1 Receiver Unit QDERATIOM EE 5 4 1 Power up Re UE e 5 4 2 AD250 P amp T logging application Se Sana lvnS ru po cpu Dub yauuit loa pon Dc tuin Eius 5 4 3 Communications Menus NENNEN E AUNAN ege Le 5 45 Sel Date and Rtl EE Os FWANS VCC NET mm Eege Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 1 GENERAL INFORMATION 2 IMPORTANT SAFETY 1 1 Use of this Manual This manual contains important safety and operating instructions for the safe and effective operation maintenance and avoidance of causing minor malfunctions of the AD250 Every person who works on or with the AD250 must be completely familiar with the contents of this manual and he she must carefully follow the important operating and safety instructions contained her
11. e Endcap should turn relatively easily with no tight spots CAUTION Super Duplex and Inconel materials are both prone to galling If the Endcap tightens and becomes hard to turn stop immediately as any extra force Will likely only make matters worse The gauge should be sent back to Acoustic Data at this point for recovery Once removed clean the existing Threadlocker from the Battery Endcap thread This may be performed with a brass wire brush and IPA alcohol Inspect the thread and sealing areas for any signs of damage Damaged units should not be reassembled due to the probability of leakage Inspect the O ring seal and replace if necessary In any instance the Metal to Metal C seal must be replaced Remove the old batteries and Battery Location O rings and dispose of the batteries at an approved site Re install the first Battery Location O ring Insert the new batteries referring to Figure 3 5 The AD250 is capable of receiving batteries in either orientation but they must be installed in series positive to negative Lithium Batteries typically have a greater capacity when their positive connection is placed upright with respect to gravity e lf the Gauge is to be deployed Head down i e with the battery end closest to surface the Batteries should be placed into the device negative end first e If the Gauge is to be deployed Head up then batteries should be inserted positive end first Insert the second Batt
12. ein The English version has 26 pages 1 2 Validity of this Manual All of the specifications provisions and instructions contained in this manual apply solely to standard versions of the AD250 delivered by Acoustic Data User manuals are available in electronic form from our website www acousticdata com au 1 3 Use of Pictograms oafety instructions and warnings are marked in this manual by the following pictograms WARNING A WARNING refers to possible injury to the user or significant material damage to components of the AD250 system if the user does not carefully follow the procedures CAUTION Special data restrictions and rules with regard to preventing damage A procedure circumstance etc which deserves extra attention A A Cm Acoustic Data can accept no liability for e Consequential damage due to use of the AD250 e Possible errors in the manuals and the results thereof 09 12 2012 INSTRUCTIONS WARNING This chapter describes important safety and operating instructions for use of an AD250 system in an oilfield environment 2 1 General 1 Before using the AD250 read all instructions relating to the AD250 decoder pickup and gauge 2 To reduce the risk of electric shock do not expose AD250 Receiver Unit to rain snow spray moisture excessive pollution and condensing environments 3 Use of an attachment or spare part not recommended or sold by Acoustic may result in a risk of
13. elected item DOWN Decrease selected item LEFT Move cursor left HIGHT Move cursor right OK Set time and exit 5 4 6 FIRMWARE VERSION From the main menu select Firmware Version You may be asked to make a note of this by an Acoustic Data Technician Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 12 2012 6 REFERENCES The following documents are available from Acoustic Data upon request 1 Acoustic Data 7000 DGA 0037 01 Mounted Gauge Welded 2012 2 Acoustic Data 7000 DGA 00538 01 Mount Setup Welded 2012 3 Acoustic Data 8000 ST 0002 02 AD250 MODBUS Map amp Implementation Guide 2012
14. ery Location O ring Slip the Metal to Metal seal over the end cap ocrew the Battery Endcap into the battery tube with a small amount of Parker TL22 Threadlocker on the Endcap thread To apply the right amount place four lines of Threadlocker from the top of the thread to the bottom equispaced at 90 around the thread Tighten the Endcap until the Metal to Metal seal is crushed to 1 0mm 0 05mm Allow the Threadlocker to set for 24h before deployment Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 HEAD DOWN HEAD UP Figure 3 5 Battery Compartment Re assembly amp Battery Orientation 3 5 1 SUITABLE BATTERIES Table 3 4 contain a list of the batteries currently approved for use in the AD250 Downhole Gauge Battery Cell Size Mft Part No Chemistry Temperature Range C 3B3700 Sulfuryl Chloride 20 C to 150 C C 3B5100 Sulfuryl Chloride 20 C to 165 C Table 3 4 Suitable Batteries Electrochem PMX150 Electrochem PMX165 Title AD250 User Manual A ACOUSTIC DATA _ Document No AD250 MAN 0001 02 S Real Time Well Technology Date 09 Dec 2012 4 THE WELLHEAD SENSOR oignals from the Downhole Gauge are received at surface by the Wellhead Sensor This comprises an intrinsically safe ATEX certified accelerometer mounted vertically in most instances to the tubing hanger section of the wellhead via a mounting plate
15. grounding connection Grounding and all other wiring must comply with local codes and ordinances 10 In case of fire you must use the fire extinguisher that is appropriate for electrical equipment 11 If applied in a marine application in the United States external connections to the AD250 shall comply with the United States Coast Guard Electrical Regulations 33CFR183 Sub part 1 2 2 Warnings regarding use of the Gauge 1 The AD250 Downhole Gauge is not an intrinsically safe instrument During installation or for any period where the gauge will reside within a hazardous zone a suitable risk assessment or hot work permit should be used in accordance with local working practices 2 The AD250 gauge contains Lithium Sulfury Chloride or Lithium Thionyl Chloride batteries The maximum working temperature of these batteries should be observed at all times Do not place or leave the gauge near extreme sources of heat The gauge will be installed with either high temperature batteries or in some instances may be fitted with standard industrial temperature versions The maximum working temperatures are shown below Battery Max Temp Electrochem PMX150 150 C Electrochem PMX165 165 C Standard Lithium Thionyl Chloride e g Saft Tadiran 80 C 85 C etc 3 It is the operator s responsibility to observe the maximum safe working temperature of these batteries at all times 4 The AD250 gauge is designed t
16. he AD250 Receiver Unit and Key Physical Depth 535mm 4x20 line OLED None 4 GB SD Card as per 5 4 2 2 Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 Environmental Temperature rating 40 C to 80 C None Recommend installation into typical DIN rail IP65 enclosure with Zener IP rating barrier Outer enclosure with DIN rail mounting and cable gland entry optional 90 260Vac or 9 36Vdc Consumption 3W max Power Supply Table 5 1 Receiver Unit Specifications 5 1 Suitable Housings The AD250 Receiver Unit has been designed to be mounted in an industrial standard DIN rail housing This allows maximum compatibility with existing wellsite SCADA infrastructure If there are no existing housings then the Receiver Unit should be mounted in an enclosure with appropriate IP protection for the mounting position External Housings are available from Acoustic Data upon request 5 2 Electrical Connections 5 2 1 POWER The AD250 Receiver Unit may be powered from a range of power supplies Both Mains AC and DC supplies can be used It is recommended in any application that a low voltage DC supply 12 24V is used to reduce the risk of electric shock Mains AC Supply DC Supply Do not use AC 50 60Hz AC 50 conz DC 90 260 90 260 9 36 L NC t ppppE oO WARNING CAUTION When using mains inputs Damage may result from adequate protection wiri
17. ic Data Technicians Figure 5 8 AD250 Application File Names The data layout is designed to import easily into Excel or similar spreadsheet program Title AD250 User Manual Zw ACOUSTIC DATA _ Document No AD250 MAN 0001 02 ZF Real Time Well Technology Date 09 Dec 2012 5 4 3 COMMUNICATIONS MENUS The Comms Menu see Figure 5 3 allows MODBUS variables to be changed and saved To be saved the SD card must contain an appropriate Config txt file Changes will be made without an SD card inserted or without the appropriate file but they will not be saved Any loss of power in this instance will cause the unit to revert to default values Comms Menu Description Default Values Enable MODBUS Enable MODBUS communications on Off RS485 RS485 port MODBUS Address Set address 1 247 Baud Rate MODBUS baud rate 9600 or 19200 19200 5 4 4 AUXILIARY FUNCTIONS The Auxiliary Functions menu see Figure 5 3 contains further applications to assist in the diagnosis of background noise conditions and system function Auxiliary Functions MeSH Description Measure the background noise and stream the result to a data file on the SD Full Noise Survey Card This application will take a variety of Single Noise Records with varying settings and will override any settings in the Noise Settings menu Measure the background noise and stream the result to a data file on the SD Card This will perform a single record using setti
18. items the arrow will remain stationary and the text will cycle OK Execute highlighted item through the selections Figure 5 4 General Menu Navigation 5 4 1 POWER UP SEQUENCE When power is first applied to the unit the power LED will flash three times and the following screens will be displayed The unit is checking for the presence of an SD Card and for any new firmware present on that SD card Display time Approx 2 secs Missing LOADER CFG No firmware found on SD card this is the most likely option in a factory delivered state Firmware Unchanged Firmware present on SD Card but has already been loaded If new firmware has been found then the device will enter the firmware update application No user input is required simply wait for the operation to complete Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 The next phase indicates whether the device has found a Config txt file on the SD Card Configuration loaded from file File was found and default settings have been changed to match the file Missing Config file No Config file was found default application values will be used No SD Memory Card Skipping load config No SD card m inserted default application values will be used Default screen booting complete 0 4 2 AD250 P amp T LOGGING APPLICATION To run the AD250 s main application simply press OK or RIGHT keys to select
19. loaded upon a unit s power cycle i e at boot up The unit uses a Config txt file that contains a human readable interface to set default settings Use of this file means that default settings can be changed by an Acoustic Data engineer and simply transferred to the appropriate unit without the need to perform more complex menu functions at wellsite Before starting any installation check that the Config txt file is present on the SD card It is the operator s responsibility to assess the certifications provided for any equipment rated for use in a hazardous zone Please check that certification provided is suitable for local ordinances and applicable hazardous zone legislation Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 5 4 Receiver Unit Operation The following descriptions are provided when using the Receiver Units OLED screen and Navigations buttons For MODBUS functionality consult 3 The OLED Screen The Navigation Buttons Menu Display General Menu Navigation Three menu items are displayed at one time UP Menu Selection Up Increase selected The arrow on the left indicates the currently value selected option When pressing UP and DOWN DOWN Menu Selection Down Decrease keys selected value If there are only two options the arrow will LEFT Go back a Menu layer without executing move up and down RIGHT Execute highlighted item If there are three or more
20. ly without damage A standard vice is not suitable for this operation e AnAcoustic Data Battery Compartment tool that will allow the Battery Endcap to be removed Do not use Stilsons or similar for this operation as damage will result e An Acoustic Data seal replacement kit This comprises a replacement O ring Metal to Metal C seal and Parker TL22 Anaerobic Threadlocker and Battery Compartment Tool e Replacement Battery Kit comprising of two batteries sourced from Acoustic Data or from an authorised representative of the recommended battery company MIN A IHN H HAM Item Description Battery Tubular Section Lithium Metal Batteries Battery Location O ring Battery Endcap Battery Endcap O ring Seal Battery Endcap Metal to Metal C seal Battery Endcap Thread Gauge Mount Centralising O ring Bleed Screw Activation Switch Figure 3 4 The AD250 Battery Pack Assembly amp Key Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 The following procedure assumes that the tool had been safely retrieved from the well the bleed screw opened and no gas and or liquid released from the vent Secure the tubular section of the gauge containing the batteries in a pipe vice Using the Battery Compartment Tool unscrew the Battery Endcap in a counter clockwise direction Significant force may be required to break the existing Threadlocker in the endcap Once movement has started th
21. ng both an AC and a must be provided to prevent DC power supply operators contacting the live mains ternminals Input Isolation SKVAC Input Isolation 1 5kVDC NEN Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 5 2 f DC input isolation bypass In instances where the AD250 Receiver Unit is powered from a Solar Panel and backup battery arrangement it is useful to monitor the backup batteries voltage The AD250 unit is capable of doing this and reporting the information both on screen and via the MODBUSS interface To perform this function however the DC input isolation must be bypassed by jumpers located within the unit itself This must be performed at the factory and users must specify this requirement prior to delivery 5 2 2 RS 485 MODBUS RTU Electrical Connection to the AD250 Receiver Units isolated RS485 port should be made as described in Figure 5 2 4W Configuration 5 Wires 2W Configuration 3 Wires RS485 RS485 Io TI Rc RX OV Terminate Tx Tx Re Rx OV Terminate PPPPP Em PPPPP Da Wire Twisted Pair 2 Pair e g Belden 9842 Wire Twisted Pair 1 Pair e g Belden 9841 Size 24 AWG Size 24 AWG Characteristic Impedance 100 1200 Characteristic Impedance 100 1200 Figure 5 2 RS458 Electrical Connections For more information on the AD250 s MODBUS implementation including full port specifications and the associated MODBUS map plea
22. ngs taken from the Noise Settings menu This program can also be used to record the strength of received signals for later diagnosis by an Acoustic Data Technician Noise Settings Menu Contains settings for the Single Noise Record Allows the monitoring of Receiver internal system temperature and input voltage if the input isolation is bypassed This is a test program that is used in the factory to qualify units and is left enabled should logging of the internal temperature be required by the user Single Noise Record System Monitoring Application to stream Wellhead sensor data to the RS485 port Acoustic Data Technicians only Serial Streaming Do not select this option whilst the unit is connected to an RS485 MODBUS network Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 From the Auxiliary Functions menu select Full Noise Survey Whilst performing this function the AD250 Receiver Unit does not receive or decode incoming data from Downhole The Full Noise Survey simply runs a selection of Single Noise Records with defined parameters See 5 4 4 2 for more details From the Auxiliary Functions menu select Single Noise Record Whilst performing this function the AD250 i Receiver Unit does not receive or decode l Incoming data from Downhole Progress monitor File Name Figure 5 9 Noise Recording Screen A Noise Monitoring file will be produced
23. o operate in temperatures from 20 C to 125 C Operation of the equipment in temperatures lower or higher than this may cause the equipment to The maximum operating temperature of the gauge and its associated electronics is 125 C If a lower temperature is dictated by the type of batteries installed then this lower temperature limit must apply AD250 User Manual AD250 MAN 0001 02 09 Dec 2012 malfunction to fail to record or store data or to lose data previously obtained Prior to running into the wellbore store the gauge where it can be protected from extreme heat and cold 2 3 Guarantee Specifications 1 Acoustic guarantees that this unit has been built according to applicable standards and specifications Should work take place that is not in accordance with guidelines instructions and specifications contained in this user manual then damage may occur and or the unit may not fulfil its specifications All of these matters may mean that the guarantee becomes invalid 2 The guarantee is limited to the costs of repair and or replacement of the product Costs for unit recovery installation labour or shipping of the defective parts are not covered by this guarantee Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 12 2012 3 THE DOWNHOLE GAUGE The AD250 Downhole Gauge is a device designed to measure Pressure and Temperature P amp T in Oil and Ga
24. one for each noise record The filename will start with the date and time the file was started and will have the extension dat Progress is indicated by percentage indicator that increments in 10 steps LS Ag Noise Settings Menu The Noise Settings menu allows users to set the parameters used for a single noise record Noise Settings Menu Description Default Values Analog Gain The Analog input gain x1 to x64 x1 oet the sampling rate 2 000 SPS to Sample Rate 30 000 SPS 7500 SPS Record Duration Set the record time 1 Minute to 10 Hours Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 From the Auxiliary Functions menu select System Monitor Whilst performing this function the AD250 Receiver Unit does not receive or decode incoming data from Downhole If an SD card is inserted the core temperature and battery voltage will also be logged to a text file The Core temperature is typically 3 4 C above ambient Battery Voltage will only be displayed if the DC input isolation is bypassed This function may be of use if the units internal temperature is of interest or in diagnosing possible problems with Solar Panel and backup battery installations 5 4 5 SET DATE AND TIME From the main menu select Set Date and Time It is neccessary to set the date and time every time power to the unit is lost Set Date and Time Navigation Buttons UP Increase s
25. s wells These data are then sent to the surface acoustically using our proprietary signalling technique c A SS on 5 to e T Li rrt a e JN THREAD 15 16 10 UNS A A Figure 3 1 The AD250 Downhole Gauge Important Dimensions Physical Length 1199 0 mm Housing material Super Duplex UNS 832760 Deployment Tubing Mounted Collar or Weld on mount or Wireline Hanger Environmental Temperature rating 20 C to 125 C Battery life storage 3 loss in capacity per year at 25 C Temperature and data rate dependent Battery life downhole Predicted life at 125 C 2 years at 50 C gt 3 years See example battery life prediction Battery Type 2x C cell Lithium Sulfuryl Chloride or Lithium Thionyl Chloride Operational 2500m maximum for low noise observation well 2000m DES for average operational well 0 296 Full Scale Over full temperature and pressure range H 1 C Table 3 1 Downhole Gauge Specification Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Date 09 Dec 2012 3 1 Gauge Installation tubular This mounting must allow an acoustic signal to couple into the tubular successfully We currently offer three methods of deployment depending on the design and economics of the well s concerned The mounting method should be decided well in advance of gauge deployment Speak to members of the Acoustic Data team to make sure the selected mounting method is correct for
26. se consult 3 available from Acoustic Data on request 5 2 3 ETHERNET MODBUS TCP The Ethernet networking operation of the AD250 receiver unit is currently under development and is expected to be supported via a firmware update in the near future Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 5 2 4 USB The USB PC link function of the AD250 receiver unit is currently under development and is expected to be supported via a firmware update in the near future 5 2 5 WELLHEAD SENSOR VIA ZENER BARRIER Connection to the Wellhead Sensor is made via an MTL7728 or equivalent Zener Barrier The Zener Barrier and Wellhead Sensor form an intrinsically safe IS circuit that is suitable for installation into hazardous zones Wellhead Sensor Connection Via Zener Barrier SENSOR V COM COM Safe Haz P P P MTL7728 or equivalent Wellhead Sensor MTN1100 WARNING An adquate earth terminal must be provided within the AD250 Receiver Units external enclosure If this is not provided or is inadequate the protection afforded by the Zener Barrier will be invalidated If an adequate earth terminal is not available connection may be made using a Galvanic Barrier Please consult Acoustic Data Figure 5 3 Wellhead Sensor Connection Via Zener Barrier 5 3 The Config txt file The AD250 offers a flexible means of setting default values that will be
27. surement is sent whilst an interval of 10 means that every 10th measurement would be sent This allows the gauge to take many more readings than are transmitted and is useful in recording data during pressure build up tests The gauge holds separate measurement intervals for both pressure and temperature This means that energy efficiency may be maximised as not every temperature measurement is always needed Measurement Send Interval Table 3 2 Primary Schedule Options Real Time Well Technology Title AD250 User Manual ACOUSTIC DATA Document No Date AD250 MAN 0001 02 09 Dec 2012 To demonstrate what is possible with the Gauge Schedule consider the schedule outlined in Table 3 3 below Schedule Number 1 Initial Deployment 2 Long Term Monitoring 3 Scheduled Pressure Build up 4 Back to Long Term Monitoring Schedule Switch Time 0 schedule 1 must start immediately 1 Year 1 Day and 12 Hours Measurement Interval 10 minutes 6 hours 10 seconds 6 hours Pressure Send Interval 1 send every pressure measurement 1 send every pressure measurement 60 send a pressure measurement every 10 minutes 1 send every pressure measurement Table 3 3 Example Gauge Schedule Temperature Send Interval 1 send every temp measurement 28 send only 1 in 28 temp measurements 0 do not send temperature in this schedule 10 send only
28. ve the following functionality Title AD250 User Manual ACOUSTIC DATA Document No AD250 MAN 0001 02 Real Time Well Technology Date 09 Dec 2012 AD250 Application Navigation Buttons UP None DOWN Remove Threshold Lock Press twice to remove LEFT Cycle through last 10 received packets RIGHT Cycle through last 10 received packets OK Exit application Press twice to exit Figure 5 6 AD250 Application Navigation Buttons EE SD Card Data Storage SD Card Specification Description Size 4GB Class 10 or better Temperature 40 to 80 C Example SANDISK Extreme and Extreme Pro cards 4GB to 16GB Figure 5 7 Minimum SD Card Specification All data received and decoded by the AD250 Receiver Unit are logged to the SD Card Whilst the application is running the SD card must remain inserted The application can be stopped at any time and the SD card may be removed and read by any standard PC with an SD card slot or USB card reader Three files are created every time the AD250 application is run The file name will start with the date and time that the application was first run with the following names appended to each file File Name Description 2012 12 01 20 05 40 DAT txt Pressure and Temperature Data File Gauge Status Log File contains useful information received from 2012 12 01 20 05 40 STA txt the Downhole gauges status packet 2012 12 01 20 05 40 PAC txt Packet Log Useful for Acoust
29. workover to be retrofitted with an AD250 Gauge for example to replace a failed Permanent Downhole Gauge Wireline deployment is Suitable when e he Gauge must be retrofitted to a well e When measurement of internal tubing pressure is required e If Gauge retrieval s required during life of deployment 3 2 Gauge Operating Schedule The timing of Pressure and Temperature measurement is controlled by the Gauges on board Microcontroller This manages the internally programmed Gauge Schedule Presently this schedule must be programmed by Acoustic Data before deployment In due course tools and training will be available to dealers and users to program the gauge anywhere The Gauge Schedule may be reprogrammed by sending the unit back to Acoustic Data Up to 8 measurement schedules are currently programmable The primary options that may be programmed in each schedule are indicated in Table 3 2 below Function Description Schedule Switch The time at which the next schedule should start Time is expressed in Time days hours minutes and seconds The time between P amp T measurements expressed in days hours minutes Measurement and seconds All measured data are stored on the gauges on board Interval memory They are not necessarily transmitted acoustically to surface however This is the number of measurements that are taken before a Measurement is transmitted acoustically to surface For instance an interval of 1 indicates that every mea
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