700-410 - OFITE Spectral Gamma Ray Logger
Contents
1. OFITE Dependable Products From People You Trust OFITE Spectral Gamma Ray Logger Part No 700 410 Instruction Manual Updated 4 27 2015 Ver 1 12 OFI Testing Equipment Inc 11302 Steeplecrest Dr Houston Texas 77065 U S A Tele 832 320 7300 Fax 713 880 9886 www ofite com Copyright OFITE 2014 Table of Dt ee De de EE 2 DISS CHIDUION EEN 2 Con ten ts DDESCITICALL EE 2 COMPONENTS TEEN 2 UC Star GE 3 Klee 4 Data EXPO EE H Man a l e ad e EE 8 Calibratie 10 EE 10 Eeer 15 Software Setup DEE 16 Troubleshooting WE 20 ele 20 ele Ee TE 21 Eeer 21 PCIE SC CO eebe eege eege 22 IN AND vente ER 23 Warranty and Return Policy cccccsscsseeeeeeeeseeeseeeseneseneseeees 24 OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com Introduction Description Specifications Components OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com The natural gamma ray radiation emitted from rocks varies with the lithology The radiation comes from the radioactive decay of Potassium Uranium and Thorium which are present as trace elements Shale typically contains more of these elements than clean sandstone or limestone Generally formations with higher shale content release more radiation A gamma ray well log is a recording of the natural gamma radiation of the formation around the wel2. Set the belt speed to 3 8 ft min and start the motor see page 5 Record the time it takes the mark on the belt to travel one complete revolution Set the belt speed to 6 33 ft min and start the motor Record the time it takes the mark on the belt to travel one complete revolution Calculate the belt speed Speed time min belt length ft If the calculated speed is 5 over or under the set speed adjust the belt tension see page 20 and repeat steps 6 10 OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 22 7 1 Inspect the conveyor belt when the system is shut down and empty This Main tenance allows you the check for any damage to the belt or splice Check for the following a Pulley free from build up and trapped material b Pulley free from damage c No Skirting on the loading area d No Impact Bed or Impact Idler damage e Slider Bed clean and smooth f Idler free from damage g No frame damage h Return idlers are clean and turn freely Damage to return side frame due to mis training 2 Turn the conveyor belt on and run it empty Check for any tracking problems with the belt d 3 Before making any tracking adjustments run the system when loaded Empty belts and loaded belts may track differently Note 4 Turn the conveyor belt on and run it loaded Check for the following a Turning freely without bearing noise product buil
3. Enter 4 5 in the Standard 2 Height field and click the Measure 2 button 5 Click the Calculate button to save the calibration Setup 1 04 xs General Settings Height Sensor Calibration Waveform l Standard 1 Height Sensor Value 1 Current Sensor Value e EP glo Measure 1 18 79989 8 82428 Standard 2 Height Sensor Value 2 as Measure 2 1 91913 Core Height jon Factors Scale Offset Calculate 0 653997 5 75511 6 Place the 2 376 Calibration Gauge 700 410 069 under the scanner The height should be 2 00 2 75 If not repeat this procedure OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 17 The graph of the data can be customized to fit your needs Select Plot Setup from the Options menu Plot Setup 1 00 TG Scale TickExt Name Color 0 007 Total Gamma cps ca Grid Setup TGD Density Scale Left Width Top Height X Count X TickExt TickExt Border X Grid Y Grid Name Color 0 010 0 300 0 100 o ee0 10 4 000 o o10 ES Density E Grid Setup K K Scale Left Width Top Height X Count TickExt Y TickExt Border Grid Y Grid Name Color 0 430 0 180 0 100 0 880 9 4 000 oon J n Potassium E Grid Setup U U Scale Left width Top Height X Count X TickExt Y TickExt Border X Grid Y Grid Name Color 0 620 0 180 0 100 o se0 5 4 000 o oo0 jy Ff Uranium ppm E Grid Setup Th Th Scale Left wi
4. The unit will stop collecting data and the belt will stop moving the samples OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 6 At the end of a test the test data will automatically be saved in a file on the Da ta Exp ort computer hard drive This file can then be imported into the Log Plot software installed on the computer For more information refer to the Log Plot documentation 1 2 10 11 After the test is complete open the Log Plot software Select Open from the File menu In the Files of Type field select Log Design Idfx Find the file Gamma Plot ldfx and open it Select Open from the File menu again Find the file tom dat and open it Open Microsoft Excel and open the data file from the Gamma Ray Logger software The data file is located in the folder specified on the options screen See page 16 for details Select all of the data in the data file and copy it to the clipboard In the Log Plot software click the form tab and paste the test data into the form Z LopPlot 7 4 89 115 File Edit Data Log Tools Options Window Help C Documents and Settings dho Desk CH Design Gamma Pa k n BE 2 ANew Folder 6 Bii E ER Data dat Works DB A LogDesign P oz Gamma Plot dv af Logs T ot Compile Log Button Form Tab Click the Compile a Log button Enter the starting
5. Total Gamma TG Potassium K Uranium U and Thorium Th scales can be modified separately Name Enter the name of the graph Color Select a color for the graph AutoScale Settings The AutoScale Settings for the Depth Total Gamma TG Potassium K Uranium U and Thorium Th graphs can be changed separately Greatest Min The minimum value on the X axis will scale to the lowest data point on the graph or the Greatest Min value whichever is lower Enter NaN to set it to the lowest data point on the graph Least Max The maximum value on the X axis will scale to the highest data point on the graph or the Least Max value whichever is higher Enter NaN to set it to the highest data point on the graph Nom Num of Increments The number of increments on the Y axis OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 19 Troubleshooting Over time the belt may drift to one side of the conveyor rail Manual l adjustment knobs on the end of the belt can be used to adjust the alignment Belt Adjustment of the belt and move it back into place 1 Loosen the four 4 socket head cap screws 2 Center the conveyor belt by adjusting the two belt tensioner knobs a Ifthe belt needs to move towards the right tighten the belt tensioner knob on the left or loosen the knob on the right b Ifthe belt needs to move towards the left tighten the belt tensioner knob on the right or loos
6. depth in the Top of Interval field Enter the ending depth in the Bottom of Interval field Make sure the Positive Depths field is checked Click OK to compile the log OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com T Manual The Gamma Ray Logger can also be used to take manual measurements of a single core sample Control 8 1 Select DigiBASE Manual Control from the Options menu 2 Place the core under the shield 3 Click the Start button a DigiBASE Manual Control 100 lc LLC Ll DigiBASE Info DigiBASE Realtime 1000 Version Active FDBAS 001 True Time True Preset 00 01 13 00 05 00 Remaining Time High Voltage Setting 00 03 47 1000 CPS Gain Fine 5 7 S 1 043 CPS instant 100 Bias Supply Polarity 5 9 8 o Positive ES Negative du Ae High Voltage True Time A 1000 00 00 00 Set True Time Bias Supply Overload High Voltage Setting o d 1 047 995 12 01 10 10 l ee iii iii iii d L l 0 Set High Voltag Normal 1 043 995 12 28 10 0 500 600 700 800 1100 i hi Gain Fine High Voltage Enabled gt Hema a F f H _SetGanFine P sabed channel EIER Sam ow WW Cep Density SS o Enabled alare ES Get Version Enable HV Thorium Can Spectrum Cal 995 Disable HV Standards and CPS from 170 on J Density 152 169 Cear H start H stop D 1 i 1 1 H 1 D
7. n The belt calibration is performed at the factory however as the machine ages and the belt stretches it may be necessary to recalibrate the software Belt to account for the new length To do this the operator marks the belt and the conveyor rail The software advances the belt and then stops The operator then measures the distance the belt has traveled and records that value in the software The limit switch at the end of the conveyor belt is disabled during calibrations It will not stop the motor when a core reaches the end of the belt Before Important starting the calibration make sure nothing is on the belt 1 2 In the software select Calibrate Belt On the side of the belt opposite the limit switches place a piece of tape on the belt and place a piece of tape on the conveyor rail Both pieces should line up with each other Click the Accept button When the belt stops moving measure the distance between the two marks The belt will travel approximately 6 feet Enter the value in the software and click the Accept button E CalWizard 1 00 MOTOR CALIBRATION WIZARD Place a mark on the belt so you can know how far it has traveled ACCEPT CANCEL E CalWizard 1 00 MOTOR CALIBRATION WIZARD Please enter the distance traveled 0 000 tf OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 15 Software To change the software settings
8. select Setup from the Options menu Setup General Settings Height Sensor Calibration Waveform DAQmx Device Name Drive Port devi coms Archive Path C Gamma Logger Data Limit Switch v Enable DAQmx Device Name The communication port for the scanner Drive Port The communication port for the motor Distance Unit Choose Feet Archive Path Select a folder to save test data Limit Switch The limit switch at the end of the conveyor belt will stop the motor if a core passes through it during a test To disable the limit switch uncheck this box The limit switch is enabled by default The limit switch is disabled during both spectral and motor calibrations uN Before starting a motor calibration make sure nothing is on the belt Before starting a spectral calibration make sure only the three calibration standards are on the belt and that none of them are between the shield and the limit switch Important OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 16 Core Height Conversion The core height should be calibrated if the height sensor is replaced or the height reading is wrong 1 Click Options gt Setup Click the Height Sensor Calibration tab 2 With nothing on the belt enter 0 in the Standard 1 Height field and click the Measure 1 button 3 Place the 4 5 Calibration Gauge 700 410 068 under the scanner 4
9. 165 00 00 00 00 00 10 00 00 20 00 00 30 00 00 40 00 00 50 00 01 00 00 01 10 00 01 20 Time Ham K 56 Tim m T K A SE e fo ap o P Sampl o w e S Ee ET DK ERT PPM alaju S Density BAA 8 Der S CELAL ES IR Density alaj 17 87 Density Sum 80 55 DigiBASE Info This information comes from the DigiBASE scanner within the Gamma Ray Logger This information is for debugging purposes only DigiBASE Realtime This information shows the current runtime parameters for the DigiBASE scanner This information is for debugging purposes only True Time The scanner accumulates data over a specified period of time At the end of this interval the data is recorded as a single data point and the process starts over This is called True Time To set the True Time enter a value in this field and click the Set True Time button High Voltage Setting This is the amount of voltage being sent to the photo multiplier Gain Fine The amplifier gain Get Versions Populates the DigiBASE Info box OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 8 Enable HV Turns High Voltage mode on Disable HV Turns High Voltage mode off When High Voltage mode is off the scanner will not collect any data Clear Clears data from the graphs Start Starts logging data Logging will stop at the end of the True Time interval Stop Stop loggi
10. 2 in diameter the operator must remove it manually before it reaches the end of the belt 4 Check sensor operation a During normal operation a red light on the transmitter and green light on the receiver should both be on If one or both is not on the system must be serviced by an OFITE technician OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 21 b If both lights are on move your hand in front of the sensor A red light on the receiver should turn on when the sensor is blocked and turn off when the sensor is cleared If not the system must be serviced by an OFITE technician 5 Clean the sensor a If the green light on the receiver and the red light on the transmitter are bolt on and a red or orange light on the receiver is on the sensor is activated Check for dirt or debris on the sensor and clean it if necessary Ifthe light remains on the system must be serviced by an OFITE technician 6 Check the sensor alignment a The transmitter projects a visible red light When both sensors are in alignment loosen the mounting bracket on the transmitter and adjust its position Troubleshooting To confirm the speed of the belt Belt Speed 4 2 10 Measure the length of the belt Run the Belt Calibration See page 15 Add an evenly distributed load of 150 Ib to the conveyor belt Place a mark on the belt and another on the conveyor rail
11. 2 Calibration Standard Thorium 00 410 403 Calibration Standard Uranium 00 410 404 Calibration Standard Background 900 1908 Desktop Computer 900 2202 Computer Monitor Replacement Parts 00 400 017 Distance Sensor 700 400 021 Motor 00 410 001 Multi Channel Analyzer ech Always run a spectral calibration the night before running a Spectral Log test A spectral calibration is not necessary for the Total Gamma Log test Quick Start 2 Place the first core on the belt directly under the sensor Start with the most shallow core first Orient the core so that the shallow end goes under the shield first 3 Click the Start Test button on the Main Screen 4 Enter the well information This information will print on the well log at the end of the test 5 Enter the start and end depth 6 Enter a file name and click OK 7 Continue to load cores onto the belt 8 Remove cores as they emerge from the shield Be sure to replace the core in the proper box and in the correct orientation 9 When the last core sample has left the shield click the Stop button d If a core reaches the end of the conveyor an electronic eye will stop the belt is The software will continue to collect data and correct for the elapsed time ote OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 3 Opera tio n Always run a spectral calibration the night before running a Sp
12. 32 320 7300 Fax 713 880 9886 www ofite com 24
13. 7300 Fax 713 880 9886 www ofite com 4 API Well Number Country Start Depth End Depth m Sensor Values Drive Controls Plot Segment Settings Sample Height in Drive Mode Vel m min Offset Window Size 0 00 Velocity 9 0 D Current Depth m get Execute Pos rel m 0 1 100 1 Eng of Travel Trip 0 2 200 Data Scan Type 0 3 300 SS geen Scan Type 0 4 400 d l Custom Scan e Potassium e 0 5 500 0 00 Average Time Vel m min Uranium ppm 00 01 00 0 2 0 6 600 0 00 0 7 700 Thorium ppm 0 00 0 8 800 0 9 900 Pause Start Test 1 1000 r GammaLogger 1 04 Sr oE Seen nma Fie Options Utilities About Log Header Customer Latitude File Name 0 00 00 r Total Gamma cps Potassium rn Uranium ppm Thorium ppm NaN SES NaN NaN NaN NaN NaN NaN NaN Field Name Longitude Comments s 8 m S S z S 0 00 00 S AMEE S Well Name Township Well Number County State 22 Log Header This displays the information entered on the Start Test screen Drive Controls These options provide manual control of the belt Manual control is disabled as soon as a test is started Drive Mode Position Moves the belt a specified number of feet at maximum velocity Velocity Moves the belt at the specified velocity until stopped Vel ft min The velocity of the belt when Drive Mode is set to Velocity Pos rel ft The distance to mov
14. d up or carry back b C d Belt tracking correctly Carry Side Idler turning freely Head Pulley and or Drive Pulley running smoothly OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 23 Warranty and Return Policy Warranty OFI Testing Equipment Inc OFITE warrants that the products shall be free from liens and defects in title and shall conform in all respects to the terms of the sales order and the specifications applicable to the products All products shall be furnished subject to OFITE s standard manufacturing variations and practices Unless the warranty period is otherwise extended in writing the following warranty shall apply if at any time prior to twelve 12 months from the date of invoice the products or any part thereof do not conform to these warranties or to the specifications applicable thereto and OFITE is so notified in writing upon discovery OFITE shall promptly repair or replace the defective products Notwithstanding the foregoing OFITE s warranty obligations shall not extend to any use by the buyer of the products in conditions more severe than OFITE s recommendations nor to any defects which were visually observable by the buyer but which are not promptly brought to OFITE s attention In the event that the buyer has purchased installation and commissioning services on applicable products the above warranty shall extend for an ad
15. ditional period of twelve 12 months from the date of the original warranty expiration for such products In the event that OFITE is requested to provide customized research and development for the buyer OFITE shall use its best efforts but makes no guarantees to the buyer that any products will be provided OFITE makes no other warranties or guarantees to the buyer either express or implied and the warranties provided in this clause shall be exclusive of any other warranties including ANY IMPLIED OR STATUTORY WARRANTIES OF FITNESS FOR PURPOSE MERCHANTABILITY AND OTHER STATUTORY REMEDIES WHICH ARE WAIVED This limited warranty does not cover any losses or damages that occur as a result of e Improper installation or maintenance of the products e Misuse e Neglect e Adjustment by non authorized sources e Improper environment e Excessive or inadequate heating or air conditioning or electrical power failures surges or other irregularities e Equipment products or material not manufactured by OFITE e Firmware or hardware that have been modified or altered by a third party e Consumable parts bearings accessories etc Returns and Repairs Items being returned must be carefully packaged to prevent damage in shipment and insured against possible damage or loss OFITE will not be responsible for equipment damaged due to insufficient packaging Any non defective items returned to OFITE within ninety 90 days of invoice are subject t
16. dth Top Height X Count X TickExt Y TickExt Border X Grid Y Grid Name Color 0 810 0 180 0 100 0 860 8 4 000 0 000 J S Thorium ppm DI Depth AutoScale Settings TG AutoScale Settings Density AutoScale Settings K AutoScale Settings U AutoScale Settings Th AutoScale Settings Greatest Min Greatest Min Gre Greatest Min Greatest Min Greatest Min re atest Min NaN NaN al NaN NaN NaN Least Max Least Max x Least Max Least Max Least Max NaN NaN al NaN NaN NaN Nom Num of Increments Nom Num of Increments Nom Num of Increments Nom Num of Increments Nom Num of Increments Nom Num of Increments 10 10 10 10 10 10 Y TickExt The length of the tick marks on the Y axis Grid Setup The grids for Total Gamma TGD Potassium K Uranium U and Thorium Th can be modified separately Left Enter the distance in pixels from the left side of the screen Width Enter the width in pixels of the graph Top Enter the distance in pixels from the top of the screen Height Enter the height in pixels of the graph X Count Enter the number of tick marks you want on the X axis X TickExt The length of the tick marks on the X axis Y TickExt The length of the tick marks on the Y axis Border Select a border color X Grid Select a color for the X axis gridlines Y Grid Select a color for the Y axis gridlines OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 18 Scale The
17. e the belt when Drive Mode is set to Position Execute Check this box to begin moving the belt Uncheck it to stop the belt OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 5 Scan Type These options specify what type of test to run Total Gamma The belt will move at one foot per minute and the graph will only show total gamma Spectral Gamma The belt will move at one foot per five minutes and the graph will show both total and spectral gamma Custom Scan Allows you to specify a custom test Average Time The amount of time to accumulate data before recording a data point Vel ft min The speed of the belt during the test Sensor Values Sample Height Displays the height of the current core Current Depth Displays the calculated depth based on the start depth entered at the beginning of the test End of Travel Trip Indicates the sensor at the end of the belt has been triggered and the motor has stopped Data Total Gamma cps Total gamma measurement in Counts per Second Potassium Concentration of Potassium in the sample Uranium ppm Concentration of Uranium in the sample Thorium ppm Concentration of Thorium in the sample Plot Segment Settings Offset Move the slider to scroll to different points on the gamma log Window Size Move the slider to show more or less data points on the gamma log Pause Check this box to pause the test
18. ectral Log test A spectral calibration is not necessary for a Total Gamma Log test 1 Place the first core on the belt directly under the sensor Start with the most shallow core first Orient the core so that the shallow end goes under the shield first 2 Click the Start Test button on the Main Screen 3 Enter the well information This information will print on the well log at the end of the test 4 Enter the start and end depth 5 Enter a file name and click OK E x Start Test 1 04 i Log Header Customer Latitude File Ni test3 Field Name Longitude Comments Well Name Township Well Number County API Well Number State Country Start Depth End Depth 20 22 a OK Cancel 6 Continue to load cores onto the belt Make sure each core is properly aligned on the belt according to its depth kl in the log For example if six inches are missing from the bottom of a Tip core leave six inches of empty space on the belt between that core and the next 7 Remove cores as they emerge from the shield Be sure to replace the core in the proper box and in the correct orientation If a core reaches the end of the conveyor an electronic eye will stop the belt The software will continue to collect data and correct for the elapsed Note time 8 When the last core sample has left the shield click the Stop button OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320
19. en the knob on the left 3 Use a torque wrench to re tighten the four 4 Socket head cap screws to 18 ft lbs 4 Flat Coutersink Head Cap Screws Left Knob Belt Tensioner Right Knob vi Belt Tensioner 4 Socket Head Cap Screws OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 20 Troubleshooting If the belt Is centered on the drive and guide wheels but not in the middle of the belt it may be necessary to adjust the idlers Idler Adjustment 1 Loosen the four 4 flat countersink head cap screws 2 Move the front idler in direction A as shown The conveyor belt will shift in direction B Moving the idler in direction A will shift the conveyor belt the other direction 3 Use a torque wrench to re tighten the four 4 flat countersink head cap screws to 11 ft lbs Idler Front Idler Front Pulley Driven Pulley Driving Troubleshooting The limit switch at the end of the conveyor belt will stop the motor if a core E l passes through it during a test If the belt does not stop when a core reaches Limit Switch the end of the belt check the following 1 The limit switch is disabled during both spectral and motor calibrations Make sure the software is in Test mode and not Calibration mode 2 Turn the Limit Switch option on See page 16 3 Confirm the size of the core The limit switch will not detect cores smaller that 2 in diameter If the core is less than
20. g a one foot gap to the uranium standard 7 Remove the standards from the belt as they near the limit switch at the end of the belt If the limit switch is triggered the test will be suspended and will not resume until the standard is removed 8 When the test is complete open the data file located under C Gamma Logger Data Current Month V File Name 9 Record the reading for the Potassium Uranium and Thorium values These values should be near the 2 foot and 6 foot depth values respectively Acceptance Acceptance Standard CPS Criteria Spectral Criteria Pass Potassum 56 764 s2 ssn Uranium 26 26 28 12 _ 67 28 PPM To e8 PPM thorium me 1318 6485 rem 10039PPm _ OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 13 Manual Calibration On the DigiBASE Manual Control screen you can run a manual calibration on a single standard Refer to page 8 for more information on the Manual Control screen 1 Select DigiBASE Manual Control from the Options menu 2 From the drop down menu select the standard you want to calibrate Potassium Uranium Thorium or Gamma API 3 Enter a value for True Time and click the Set True Time button The standard calibration time is 10 000 seconds 2 hours 46 minutes 40 seconds per standard 4 Place the standard under the shield 5 Click the Start button to start logg
21. ing 6 When the True Time has elapsed logging will stop automatically Click the Export Standard button to save the calibration DigiBASE Manual Control 1 04 DIGIBASE Info DIgiBASE Realtime Version Active FDBAS 003 True Time STEA 00 05 00 00 05 00 Remaining Time High Voltage Setting 00 00 00 P 710 HS Ges Gain Fine 1780 4 0 442001 CPS instant ms Start Bias Supply Polarity 1792 0 Positive ee SS Negative SP jo S Stop o i 1 i i 1 i i i i q i i i 1 1 1 1 i i i D SO 100 150 20 250 30 350 400 450 SOO SSO 600 650 700 750 800 850 900 950 1000 1050 High Voltage Channel r 710 paa jo True Time set True Time asss Overbad channel alj EPAR u E 00 05 00 SE a S Overload Counts alwi Density MEE High Voltage Setting Setrigh voltage a Normal Em ARS Thocum i 70 ee High Voltage Enabled ante SetGanFne gebiet 0 442 Enabled EnableHv Get Version Disable HV 380 360 340 S ju os 200 8 280 260 240 220 1 D 1 1 1 1 g 1 17 15800 00 00 00 00 00 30 00 01 00 00 01 30 00 02 00 00 02 30 00 03 00 00 03 30 00 04 00 00 04 50 00 05 00 Time Le EL HAR k a comm k Th an LIP 351 2254 91 SS T HES rm ARA Vers Density Sum SS Density aa v Export Standard 16527 00 Density Ai 1597 24 Export Standard OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 14 Ca lib ra tio
22. l bore and is almost always run in conjunction with other well logs Because the gamma ray log does not change with well treat ment or production it can be used to correlate the depths of the other well logs and the core gamma ray log from the same hole The OFITE Gamma Ray Core Logger measures the energy level and quan tity of the radiation emitted from a core sample and calculates the quantity of each of the elements The amounts of each of these elements and the total gamma ray count are then plotted as a function of depth To begin a test the operator arranges the core samples onto the conveyor belt in order of depth The unit will record background radiation for 15 minutes in order to establish a base reading Then the conveyor belt pulls the samples through the machine while the computer shows the results on the screen At the end of the test the results are graphed and can be printed or exported The total gamma ray log is also available Maximum Core Diameter 4 5 11 4cm Maximum Belt Speed 7 fom 2 1 mpm System Dimensions 23 6 x 47 2 x 118 1 60 cm x 120 cm x 300 cm system Weight 992 Ibs 450 kg Gamma Ray Detector Type and Size Nal 3 x 3 7 6 cm x 7 6 cm 120 00 033 Pillow Block Bearings Qty 3 00 400 014 Conveyor Belt 700 400 018 Photo Sensor Qty 2 00 410 068 Calibration Gauge Sample Size 4 5 00 410 069 Calibration Gauge Sample Size 2 375 00 410 401 Calibration Standard Potassium 00 410 40
23. ng data Standard Choose a standard for a manual calibration Export Standard Save the current data as a calibration for the selected standard OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com Calibration Spectral d Note Important Important The Gamma Ray Logger should be calibrated with spectral standards once per month or after the Gamma Ray Logger has been moved Calibration can also be done more frequently at the user s discretion During a spectral calibration the software automatically advances the conveyor belt and scans each of three standards Potassium Uranium and Thorium for 10 000 seconds each The total time for the procedure is about nine hours We recommend starting the test at the end of the day so that it can run overnight Always store the Gamma Ray Standards in the horizontal position Do not stand them up vertically The limit switch at the end of the conveyor belt is disabled during calibrations It will not stop the motor when a core reaches the end of the belt Before starting the calibration make sure nothing is on the belt between the shield and the limit switch Important Notice Concerning Calibration Standards There is no globally accepted industry standard or calibration methodology for gamma ray standards for spectral gamma ray loggers The OFITE Spectral Gamma Ray standards are manufactured to the following concentrations 100
24. o a 15 restocking fee Items returned must be received by OFITE in original condition for it to be accepted Reagents and special order items will not be accepted for return or refund OFITE employs experienced personnel to service and repair equipment manufactured by us as well as other companies To help expedite the repair process please include a repair form with all equipment sent to OFITE for repair Be sure to include your name company name phone number email address detailed description of work to be done purchase order number and a shipping address for returning the equipment All repairs performed as repair as needed are subject to the ninety 90 day limited warranty All Certified Repairs are subject to the twelve 12 month limited warranty Returns and potential warranty repairs require a Return Material Authorization RMA number An RMA form is available from your sales or service representative Please ship all equipment with the RMA number for returns or warranty repairs to the following address OFI Testing Equipment Inc Attn Repair Department 11302 Steeplecrest Dr Houston TX 77065 USA OFITE also offers competitive service contracts for repairing and or maintaining your lab equipment including equipment from other manufacturers For more information about our technical support and repair services please contact techservice ofite com OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 8
25. ppm Uranium 100 ppm Thorium and 4 5 Potassium The standards are manufactured in molecular proportions to achieve these concentrations In the event that this calibration standard does not meet desired requirements or expectations please contact OFITE 1 Place the three standards on the belt with Potassium first then Uranium then Thorium Place the Potassium standard centered under the shield and leave 12 inches between the standards Shield Height Sensor OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 10 2 Inthe Gamma Ray Logger software select Calibrate Spectrum from the Utilities Menu 3 Click the Accept button The software will scan each standard for 10 000 seconds and the automatically advance the belt to the next standard 4 When the calibration is complete click the Save button Cal Standard 1 00 DigiBASE Realtime o Bias Supply Overload 1 t 1 1 U DU I 1 D 1 1 t Overload o so 100 150 200 250 300 350 100 450 500 550 Normal Channel Voltage Enabled mane E Ee j Disabled channel AIS ESPAR H O Enabled Countsjmin 4 Di Wi 1000 Place three standards on the belt with Potassium over the detector Uranium 2 0 feet back and Thorium 4 0 feet back ACCEPT CANCEL OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 11 Calibration Verification 1 Run
26. the Spectral Calibration See page 11 2 Inthe software select DigiBASE Manual Control from the Options menu 3 Place the Potassium standard 00 410 401 on the belt centered under the shield 4 Setthe True Time to 5 minutes and click the Set True Time button 5 Click the Clear button 6 Click the Start button 7 When the test is complete record the CPS and spectral value for the standard 8 Repeat steps 3 7 with the Uranium 700 410 403 and Thorium 700 410 403 standards 9 Refer to the chart below for acceptable results Standard CPS Min CPS Max Spectral Min Spectral Max 3 24 5 34 26 26 28 12 87 28 ppm 108 88 ppm 13 18 84 85 ppm_ _ 109 39 ppm OFITE 11302 Steeplecrest Dr Houston TX 77065 USA Tel 832 320 7300 Fax 713 880 9886 www ofite com 12 Live Log Spectral Test To test the repeatability of standard readings in a live logging scenario 1 Place the Potassium source one foot back from the center of the gamma detector 2 Place the Uranium source on the belt leaving a one foot gap to the Potassium source 3 Change the scan mode to Spectral Gamma 4 Start a new test Name the file Spectral Gamma Test Set the Start Depth at 0 and the End Depth at 10 feet 5 Wait for the 15 minute background scan to complete 6 As the belt starts moving wait until there is sufficient space on the belt to place the Thorium standard while allowin
Download Pdf Manuals
Related Search