Drilling Controls Viking

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Drilling Control System PLC BASED CONTROL SYSTEM FOR THE OPERATIONS OF DW, MP AND RT VERSION 2.0 1

description

This manual is written in the English language. Only personnel who fully understand Englishwill be allowed to operate the equipment (including normal operation, maintenance andservice).

Transcript of Drilling Controls Viking

Page 1: Drilling Controls Viking

Drilling ControlSystem

PLC BASED CONTROL SYSTEM FOR THE OPERATIONS OF DW, MP ANDRT

VERSION 2.0

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DePeuter Electrical Solutions, LLC14814 Park Almeda Dr.Houston, TX 77047

Read this entire manual before operating this equipment. Practice all rig and safetyinstructions and precautions. Failure to follow instructions can cause personal injuryand/or property damage.

Any unauthorized modifications to or use of this equipment outside its specifiedmechanical, electrical, or other operating limits may cause personal injury and/orproperty damage, including damage to the equipment. Any such unauthorizedmodifications: (i) constitute “misuse” and/or “negligence” within the meaning of theproduct warranty thereby excluding warranty coverage for any resulting damage, and (ii)invalidate product certifications or listings.

This manual is intended to be an assistance in operating the PLC based control system, asinstalled on this drilling rig.It is the rig owners responsibility to make sure that all equipment operators andmaintenance personnel are properly trained and instructed in operating and maintainingthis equipment.The system is outfitted with many operational safeties, but at all times the equipmentoperator is responsible for verification of correct operation of the safeties andequipment, prior to and during off the operation of the equipment.As a minimum the IADC standards for checking safeties, as well as checking andmaintaining electrical and mechanical installations should be followed.

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Disclaimer

• This manual is written in the English language. Only personnel who fully understand Englishwill be allowed to operate the equipment (including normal operation, maintenance andservice).

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Contents

Introduction…………………………………………………………………………………………………………………………………5Installation…………………………………………………………………………………………………………………………………..6Operations…Start Up……………………………………………………………………………………………………………………7…………………..Set Up……………………………………………………………………………………………………………………10…………………..Rotary Table………………………………………………………………………………………………………….12…………………...Tongs……………………………………………………………………………………………………………………13…………………..Mud Pumps…………………………………………………………………………………………………………..14…………………..Circulation………………………………………………………………………………………………………….…15…………………..Pit Levels………………………………………………………………………………………………………….…..16…………………..Draw Works……………………………………………………………………………………………….………….17…………………..Block Calibration……………………………………………………………………….……………………….…18…………………..Crown and Block Saver………………………………………………………………………………………….19…………………..Reaming…………………………………………………………………………………………………………….…20…………………..Slip and Cut……………………………………………………………………………………………….………….20…………………..Auto Driller………………………………………………………………………………………………….………..21…………………..A2B………….………………………………………………………………………………………………….………..23Alarms………………………………………………………………………………………………………………………….……………24Need to know………………………………………………………………………………………………………………………….…25Maintenance……………………………………………………………………………………………………………………………..26

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Introduction

• The information in this manual covers the installation and setup of the DPES PLC baseddrilling control system. This unit should be installed by a qualified technician usingapproved materials in accordance with national, state and local codes. Read theseinstructions through completely before attempting installation.

• The DPES PLC based drilling control system provides controls for the MP, RT and DW on thisland rig.

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InstallationAll provided hardware needs to be used for the installation of the enclosures otherwiseNEMA / IP ratings cannot be guaranteed.

All local and international laws applicable for the installation and termination of theelectrical power supplies need to be taken in consideration when hooking up the electricalpower supply.

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OperationsStart Up

After the engine generators are startedand the 480V breaker is closed, the PLCsystem will start up. The complete PLCcontrol system is powered by an UPS,installed in the main PLC cabinet insidethe VFD house. In case of a loss ofpower the PLC control system willremain on-line and running for up to 30minutes.

When the 600V and 480V is availableyou can close the breakers to power upthe rectifier sections of the VFD drivesystem.

There are 2 rectifier sections, and thesecan be powered up simultaneously.

In case of failure of one of the rectifiersections the DC buss isolation switchcan be closed, and the system can berun with one rectifier (overall availablepower capacity to the VFD’s will bereduced).

Auxiliary switch on rectifier cabinet inthis position.

Main switch on Inverter Sections to bein this position.

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For dual rectifier operation use thecontrols as shown on the picture. Holdthe switch pictured bottom left untilboth breakers are closed and charged.

In case of single rectifier operations, put the switch in the middle (picture above) in “single”,and use the “single main breaker control” switch on the designated rectifier to close thebreaker of this particular rectifier section.

In dual rectifier operation the OETL DC buss isolation switch needs to be in the position asshown below. When changing over to the single rectifier mode, than the switch needs to bechanged into the closed position, so the single rectifier will feed both sides of the VFD lineup.

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When the rectifier breaker is closed, there will be D voltage supplied to each inverter sectionthat has the main switch closed.

The rectifiers on this rig will supply approximately 820VDC to each inverter. You can check thisfrom the HMI inside the VFD house or drillers cabin.

See below for MP.

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Set Up

Before you will be able to run any of the equipment, the system will need to be set up.This is done though the set up page.

The set up page is only available from the VFD house by means of entering apassword. The accuracy of all the data entered is the responsibility of the operator.

Entering incorrect data can cause equipment malfunction and may cause personalinjury and/or property damage, including damage to the equipment.

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Please contact DPES for any questions regarding these setpoints.

Diameter of the drum can be found by measuring the circumference of the empty drum,and dividing this value by 3.14.

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After entering all the setpoints you can calibrate the joystick.

Enter this page by pushing the yellow button at the bottom of the set up page.

To calibrate the Joystick:

1 Enter values of 20000 in the calibration value of both the joystick and joystick down.2 Look at the joystick output value and see if this is close to 0.3 If not close to zero than adjust either the calibration up or down calibration value to

achieve as close as to 0 as possible. The calibration value cannot be lower than20000.

4 Pull trigger and move joystick all the way towards you. Look at the joystick outputand make sure it is positive and 20000.

5 Move joystick back to neutral position, and check that joystick value is again close to0.

6 Pull trigger and move joystick all the way from you. Look at the joystick output andmake sure it is negative and -20000.

7 Move joystick back to neutral position, and check that joystick value is again close to0.

8 Please contact DPES if there are any questions during this calibration sequence.

Once finished, press the home button.

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The operator needs to check the accuracy of all pressure sensors, hookloadreadings etc, prior to running any equipment, and as required during operations.

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Rotary Table

The Rotary table is an independent driven Rotary table, by an AC traction motor.The RT has a separate airblower for cooling, and a lube pump for lubrication of the gearbox.

The RT brake is air actuated.

The motor starters for the auxiliary motors are located inside the VFD house.

The rpm and rotation of the RT is controlled through the HMI inside the drillers cabin. It canrotate CW and CCW. Also the torque limit is set via the HMI.The brake release is independent and the brake should be released (via HMI) prior to rotating.The RT does not have to be ion for the operator to set or release the brake.

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RT operating screen onthe left.RT VFD is ready foroperation when the REDREADY light shows on theHMI.With the START/STOPbutton the VFD will bestarted/stopped. Startingthe RT will cause the RTblower and lube pumpalso to start.If both auxilaries start upcorrectly, as verified bythe PLC control system,than the RT will bereleased for operation.(GREEN RUN light will beon)

For the RT to turn, there will need to be entered a Torque setpoint (Limit), in thedesignated box on the RT HMI page. This value will need to be higher than the requiredtorque needed to turn the table, otherwise the table will be in torque limit and will notrotate.

The brake can be released with the Brake Set/Release button. Under this button a greenlight will show when the brake is released. Air pressure needs to be present for thebrake to be able to operate.

Required RPM by touching the blue box next to rpm. A positive value entered here willresult in rotating to the right, a negative value will result in the table to rotate to the

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left.Speed can also be controlled with the up and down arrows. The one arrow box is forincreasing/decreasing rpm slowly. The double arrow keys are for faster increasing or decreasingof the rpm.Push to ‘zero rpm’ key, and the speed demand will reset to zero.

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Tongs

The tongs get controlled via the same HMI page as the Rotary table.

A torque setpoint needs to be set for the tongs to be able to move.

Tong CCW is the cathead on the off drillers side of the floor.

Tong CW is the cathead on the drillers side of the floor..

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Mud Pumps

The rig has three MP’s installed, all driven by a 1600hp AC traction motor.

Each pump is outfitted with a blower and a liner wash pump. Additionally stroke sensors areinstalled as well as a pressure transducer on the output of the liner wash pump.

The MP’s are controlled through the HMI’s inside the drillers cabin.

The MP’s can be controlled from either one of the below screens. The main MP screen (left)shows more detail regarding the VFD system as well. The circulation screen (right) shows all theinformation regarding flows, pressure and volumes of the mud system in addition to the pumpcontrols.

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To start a MP, you will push the start/stop button on the HMI. This will cause the MP blowerand liner wash pump to start.

When the auxiliaries are running and no faults are detected by the PLC control system, thanthe system will release the VFD, and the run indication on the HMI for the MP will turngreen. The charge pump will not start at this time. It will start as soon as the pump isrunning at a minimum of 1 spm.

To run the MP you can set the require SPM by either “entering” this into the blue box nextto the blue SPM indication, or use the up and down arrow keys.The single arrow key is for adding or subtracting 1 spm to the pump speed. The doublearrow will add 5-10 spm per key stroke.

Pushing the “zero SPM” butto will result in the MP set speed to be reduced to 0SPM.

Pushing the “suspend pumping” button will result in the MP spm to go to 0. But the SPMsetpoint will remain at the previously set value. Pushing the “suspend pumping” key againwill result in the pump to accelerate back to the SPM setpoint.

Pushing the “pressure Limit” button will activate the pressure limiti function in the controlsystem.

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When active, the pumps will not be able to have a pump output, as measured at the standpipethan the limit as set in the box below the button.When you run the pumps with this setting active, and the pressure exceeds the limit setpoint,than the pumps will automatically reduce their setpoint, to lower the pressure output.

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Circulation

On the circulation screen you canstart/stop the MP’s, control the speedof the MP’s.All this is done in the same manner asdescribed in the MP section of themanual.

On this screen you can also start/stopthe trip tanks pumps. This is done viathe “RUN” keys located in the middleof the HMI screen. If the requestedpump is running them the runindication on the HMI will turn green.

The circulation screen, also shows the level of the trip tank pumps and active mud volume.Also shown are stand pipe pressure, gains and losses in mudvolume as well as flow out in %.

To set the gain/loss alarm, you will need to add a value to the gain loss setpoint. You can dothis by touching the setpoint box and entering the required volume for alarm in BBL.

To now activate the start point of the gain/loss alarm you will have to zero the logic. You willhave to push the “zero gain loss”., and after that the PLC control system will alarm the drillerat any time the gain or loss is more than the setpoint.

To set the flow alarm, you will need to add a value to the flow setpoint. You can do this bytouching setpoint box and entering the require volume alarm point in %.

To than set the zer / start point of the flow measurement you will have to push the “zeroflow” button located right below the measured value.

In case of either gain/loss or flow alarm, a yellow indicator will show on the alarm windowon the top right of the screen.

In addition alarm will show like any other alarm on the alarm page.

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Pit Levels

On the Pit level screen you will be able to monitor all pits, and the status of the mainpumps of the mud pit system.

On this page you also select which pits are the active pits. The active pit volume isused for your gain and loss function (see circulation).

You activate a pit by pushing a pit button under each pit on the HMI. Green meansactive, red means inactive.

The screen also shows the status of the main mud pit pumps. These pumps caneither be started locally on the pit, or directly from their starters in the MCC house.All the starters for these pumps are located inside the MCC house in front of engine#1.

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Draw Works

The Drawworks consists of 2 independently driven AC traction motors. The DW will undernormal operations always run with both motors powered. In case of emergency, or otherissues, you can select to run the DW by either DWA, or DWB. When running on 1 motorthe DW lift capacity has been limited to 375klbs. With 2 motors the lift capacity is900klbs.

Full speed of the DW with the TD and block connected is about 3.3ft/sec. Maximumspeed is reduced automatically vy the control system based on hookload, or on theposition of the travelling assembly in relationship to the settings of the crown and or floorsaver.

For maintenance functions, a slip and cut function is available. When activated the DWmaximum speed is reduced to 0.25ft/sec. All system safeties are still active.

Air pressure and hydraulic pressure are required to operate the DW. Bot the rigaircompressor as well the drill floor HPU need to be on-line prior to starting the DW.

The Dw is ready to be started when the ready indication on the HMI shows red. Allthe alarms need to be acknowledged and the DW park brake button on the chairneeds to be released. Additionally prior to starting the DW the DW operation modeneeds to be assigned (DWAB, DWA, DWB).When the DW is ready and the start button is pushed, the DW motor blower, lubepump and the DB resistor blower will start.

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The DW brakes will not release at any time during the start up sequence.

To release the DW brake, the assigned motor or motor combination will need to show agreen light on the HMI. If this is the case and the hydraulic pressure is >1000psi and theairpressure is >95psi, than the driller can release the brake.He will need to hold the DW joystick trigger button and move the joystick either in the upor down direction.Either way he moves the joystick, the PLC control logic will send a signal to the VFD drivesthat will result in the motors trying to move the block up. Because the brake is set thiswill result into positive torque being developed in both motors, and once this torquevalue passed the pre-set required torque, than the brakes will be released.After the brakes are released the block can be moved either up or down depending onblock position and setpoint of crown and floor saver.

The control system will monitor that both motors are equally share the load. If adiscrepancy is noted during or after the brake release process than the brake will set anda loadshare alarm will be shown on the HMI.

The control system will monitor the encoders on both motors as well as the drumencoder. If a fault is detected during or after the brake is being released, than alarm willsound, the brake will set and a alarm will show on the HMI.

Block calibration

Now that the brake has been released, this first thing to do is to calibrate the blockposition.

Block calibration should be checked at any time before running the DW, after slip andcut, after a loss of power, or at any time a height verification is required.

For this the block calibration screen needs to be accessed. The instructions on thisscreen need to be followed, and after that the calibrate button needs to be pushed.

At all times the driller needs to verify the reading for accuracy, prior to operating theDW.

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Crown and Floor Saver

Once the block position is calibrated, you will need to set the crown and floor saver. Thisis done on the DW control page on the HMI inside the drillers cabin. The minimum heightfor the floor saver is 0’, and maximum height for the crown saver is the mast height.

The crown saver position is based on the height of the elevator plus the length of thetravelling assembly.The operator needs to verify that in the set up page the correct length of the travellingassembly has been entered. Failure to do so, can cause personal injury and or equipmentdamage.

The floor saver position is based on the height of the elevator from the floor.

When either the crown or floor saver is activated the DW park brake will set. The DW canstill be moved in the opposite direction (floor saver active you can go up, crown saveractive you can go down). If you still require to move past the saver stop point, than youcan hold the bypass button on the HMI screen. This will allow you to travel past the stoppoint to your required stop.

NOTE THAT IN BYPASS GREAT CARE NEEDS TO BE TAKEN ON POSITION OF TRAVELLINGASSEMBLY AS ALL SYSTEM SAFETIES ARE BYPASSED.

Based on the settings of the crown and floor saver and location of the travelling assemblyin the mast, the control system will automatically reduce the maximum speed toassembly is moving. This is required to ensure the DW stops moving right when thetravelling assembly is at the pre set stopping point.

When the mechanical crown-o-matic on the drum is activated than you will not be able tomove further up in the mast, even when utilizing the bypass button on the HMI.

You will be able to move down (at reduced speed) by pressing the override button on theleft arm rest of the drillers’ chair.

Pressing this button will result in the crow-o-matic air valve being by-passed, so that thebrake can be released. Pressing this button while running the DW bypasses all systemsafeties.

Once the DW has lowered enough the override button should be released and the crown-o-matic on the drum needs to be reset.

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Reaming

An automatic reaming function is available. When in operation the travelling assemblywill move up and down the mast at a pre set speed between a pre set high and lowstopping point.

To activate this function, the DW needs to be on and running and the brake needs to bereleased.

You also need to enter the following information in their appropiate box (all located onthe DW HMI screen)1 Minimum Hookload (if HL measurement goes below this setpoint the reaming

function will stop)2 Maximum Hookload (if HL measurement goes above this setpoint the reaming

function will stop)3 Elevator stopping point (low stopping point of the reaming)4 Travel distance (distance up measured from the low stopping point)

After entering the above data the start button can be pushed. Once the reaming functionis active you can add the requested maximum speed in ft/hr. maximum speed is1000ft/hr.

You can stop the reaming function by pressing the stop button, or by pulling the trigger onthe DW joystick.

Slip and Cut

The “slip and cut” function are available formaintenance modes and raising/lowering of themast.

The system can only be put into slip and cut mode,or taken out of slip and cut mode, when both DWdrives have been switched off and the brake is set.

In this situation a slip and cut button will appear andthe DW screen to activate or deactivate the slip andcut mode.

When slip and cut mode is active, and indication canbe seen on the DW control screen indicating that theslip and cut mode is active.

In slip and cut mode your maximum speed is.25ft/sec, and you have full range of control with theDW joystick

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Auto Driller

The autodriller is available for precise drilling operations in either ROP, WOB and DPmodes.

For the autodriller to be able to run the DW drives need to be running anf the brakesneed to be released.

If above permissives are met than the autodriller can be started by pushing the“autodriller on” button the autodriller page on the HMI.

For the autodriller to run you will always require a setpoint in the ft/hr window of theROP

The setpoint entered here will be the maximum speed the autodriller will drill, regardlessof the mode of operations.

When choosing WOB, than you will need to enter a setpoint in the WOB area of thescreen (above the arrows). You can do this by entering a value of by moving the arrows upor down. During operations of the autodriller you can always change this value.You will also need to enter the limit. If the WOB exceeds the limit than the autodriller willshut down.Also the gain needs to be set. The gain values can be between 24.999 and 0.001. Theslower the drilling process the higher the gain. The gain controls the response of thesystem and a properly set gain will result in an operation where the autodriller keeps themeasured value of the WOB very close to the setpoint.

Prior to starting the autodriller you will need to zero the WOB, and select WOBoperations.

When choosing DP, than you will need to enter a setpoint in the DP area of the screen(above the arrows). You can do this by entering a value of by moving the arrows up ordown. During operations of the autodriller you can always change this value.You will also need to enter the limit. If the DP exceeds the limit than the autodriller willshut down.Also the gain needs to be set. The gain values can be between 24.999 and 0.001. Theslower the drilling process the higher the gain. The gain controls the response of thesystem and a properly set gain will result in an operation where the autodriller keeps themeasured value of the DP very close to the setpoint.

Prior to starting the autodriller you will need to zero the DP, and select DP operations.

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When choosing DP, than you will need to enter a setpoint in the DP area of the screen(above the arrows). You can do this by entering a value of by moving the arrows up ordown. During operations of the autodriller you can always change this value.You will also need to enter the limit. If the DP exceeds the limit than the autodriller willshut down.Also the gain needs to be set. The gain values can be between 24.999 and 0.001. Theslower the drilling process the higher the gain. The gain controls the response of thesystem and a properly set gain will result in an operation where the autodriller keeps themeasured value of the DP very close to the setpoint.

Prior to starting the autodriller you will need to zero the DP, and select DP operations.

In autodrilling the regular floor saver is not active. On the autodrill HMI screen anotherfloorsaver setting is shown. The “autodrill down” floorsaver. This floorsaver can be set toa negative value, meaning that if no great care is being taken by the operator, theelevators can hit the floor, and may cause personal injury and/or property damage,including damage to the equipment.

To shutdown the autodriller the operaotr can push the start/stop button on the autodrillscreen or pull the trigger on the DW joystick.

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A2B (crown saver function)

Introduction:

• The L25 Radio Anti-Two-Block System provides a high reliability wireless link, from thecrown to the drillers’ cabin

• The L25 system has a battery, with an estimated life span of 5 years.

READ AND FOLLOW THE INSTRUCTIONS OF THE LIFTEK L25 MANUAL WITH REGARDS TOINSTALLATION, MAINTENANCE AND TESTING. FOLLOW THESE INSTRUCTIONS AT ALLTIMES.

The L25 is linked to the rig plc control system by means of a relays that is directlyconnected to the output of the A2B control unit that is mounted inside the drillers' cabin.When the system is in operation and not activated than the output will be high, meaningthe relays will be picked up and an input will be send to the rig PLC.

This means that in case of an activation of the switch in the crown, power failure,equipment failure, or any other issue pertaining this the A2B, the DW brake will set.

When the brake is set, and alarm will show on the Drillers HMI. The driller will be able tolower the block by following the same instructions as when the electronic crown saverhas been activated.

There is no option to raise the block further by means of the crown saver bypass buttonon the HMI. The only way you can continue to raise is by pushing the bypass button onthe control unit inside the drillers cabin.

PRESSING THIS BYPASS BUTTON BYPASSES ALL SYSTEM SAFETIES AND EXTREME CARESHOULD BE TAKEN BY THE OPERATOR, AS DOING THIS MAY CAUSE PERSONAL INJURYAND/OR PROPERTY DAMAGE, INCLUDING DAMAGE TO THE EQUIPMENT.

Drillers cabin Crown

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Alarms

All active alarms are displayed on the Alarm page. Most alarms do require and‘acknowledgement’ before they be reset.

Other alarms are self reset, like for example “power limit”

In all cases an acoustic alarm will sound.

Also from each operations screen the last active alarm can be seen. It is recommendedthat the operator writes down the alarm number and time of the alarm prior to pressingacknowledge. This will help in tracking alarms that have occurred and assist withtroubleshooting in case of problems.

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Need to Know

Please read the below to find some additional tips that will help with the operating of theequipment.

• To run any application, the red indicator needs to be shown. If this indicator is notshown on the HMI than the application will not run.

• After a “Low DC Voltage” alarm the VFD controllers will require a hard reset for theVFD to work again. This is done by tripping the small control breaker that feeds thepower to each controller inside the VFD cubicle. Trip this little breaker for each VFD,and set back after 30 seconds.

• During lowering of the mast and substructure, the driller needs to keep a close eye onthe DC voltage for the DW drives. A voltage at 1000VDC will mean that the speed ofthe lowering is too fast and the lowering speed will need to be reduced to preventdamage of the dynamic brake resistors.

• In case of RT and Tong controls, make sure torque limit is set, otherwise the applicationwill not move.

• The Dw can lift with on motor maximum 375klbs, with 2 motors the limit is set for900klbs.

• DW max speed is automatically adjusted when getting closer to the crown saver andfloor saver setpoints. Dw max speed is also adjusted based on hook load.

• Power limit setpoints of the engine generators is set at 85% of engine capacity.• Parameters like Tq limits, speed reference for RT and MP, various setpoints etc, can be

edited through the HMI. To do this, tap on the box representing this item, and a keypadwill appear on the HMI. You can now set the new setpoint by punching in the rightdigits, and pressing enter. After you press enter the keypad window will close and theupdated value will be shown in the box.

• The HMI inside the VFD, shows all applications and movements the drillers is doing. Innormal operatiosn no changes can be made from the screen. This screen is also theonly screen that will allow you to access the set up screen. To do this you will have toaccess the commissioning pages. On the home screen press the “commissioning”button. You will be requested to put in a password. Password is available though DPES.Enter this information and press the commissioning button again. This will bring up anew home page where “for commissioning only” will be flashing on the HMI. Now youcan access the set up screen and other screens that require change.

• For any of the DW functions to work (autodriller, reaming) the brake will have to beremoved from its parked position. The only way to do this is to move the DW joystickand the control system will go though its load proving logic, and if correct it will releasethe brake. After the brake is released you can utilize any of the DW functions.

• The DW brake will automatically set after 2 minues if the DW drum has not beenmoved within this time frame.

• There are 2 shutdowns on the right hand side of the drillers chair. The VFD e-stop shutsdown all VFD’s. The All Kill shuts down the engine generator and kills all the power onthe rig.

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MaintenancePRIOR TO THE START OF ANY MAINTENANCE ON THE SYSTEM THE OPERATOR AND TECHNCIAINNEED TO SWITCH OFF AND ISOLATE ALL ELECTRICAL POWER CIRCUITS TO THE CONTROLSYSTEM.

IN ADDITION ALL AIR AND HYDRAULIC SUPPLIES NEED TO BE SWITCH OFF AND ISOLATED ASWELL.

LOCK AND TAG OUR PROCEDURES SHOULD BE IN PLACE AND THESE PROCEDURES NEED TO BEFOLLOWED.

ONLY QUALIFIED AND WELL TRAINED TECHNICIANS SHOULD ACCESS AND MAINTAIN THISSYSTEM.

Every 6 months:

1 All electrical connections need to be checked for tightness, cleanliness and corrosion.2 All airlines need to be checked for tightness and cleanliness.3 All hydraulic lines need to be checked for tightness and cleanliness4 All wiring to be checked for cracks and other damage.5 All airlines to be checked for cracks and other damage.6 All hydraulic lines need to be checked for cracks and other damage.7 All filters inside VFD house to be checked for cleanliness.8 Check all pressure transducer for operation and accuracy of read outs.9 Check pressure gauge and verify correct reading.10 Complete system to be checked for operations and malfunctions.

Incase of doubt in reliability of a inspected part, replace with spare or contact manufacturer.Do not operate equipment of not 100% sure about proper functionality of system.

Support:

24/7DPES14814 Park Almeda Dr.Houston, TX 77047+1 [email protected]

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