L26491 PRELIMINARY REPORT GW192.docx

L26491 PRELIMINARY REPORT GW192.docx

《L26491 PRELIMINARY REPORT GW192.docx》由会员分享，可在线阅读，更多相关《L26491 PRELIMINARY REPORT GW192.docx（12页珍藏版）》请在冰点文库上搜索。

L26491PRELIMINARYREPORTGW192

PRELIMINARYREPORTOFSURVEY

LandRigGW192

Preparedfor

GreatWallDrilling

PanjinChina

By

MODUSPECINTERNATIONAL（L）LTD

Dates:

19th–23rdJuly2012

4.0LISTOFRECOMMENDATIONS

Therecommendationsinthisreportaredefinedasfollows:

Criticalrecommendations

Criticalrecommendationsarebasedonshortcomingswhichmayleadtolossoflife,aseriousinjuryorenvironmentaldamageasaresultofinadequateuseand/orfailureofequipment.

Majorrecommendations

Majorrecommendationsarebasedonshortcomingswhichmayleadtodamagetoessentialequipmentorhaveadetrimentaleffectonthedrillingoperationasaresultofinadequateuseand/orfailureofequipment.

Minorrecommendations

Minorrecommendationsarebasedonshortcomingswhichmayleadtoasituationthatcontributestoanincidentortocircumstancesinwhichtherequiredstandardsofoperationarenotmet

DrawworksRecommendations:

5.1.1.1MajorInstallalarmfornowaterflowandhighbrakewatertemperatureondrawworksdiscbrakes

5.1.1.2MajorEnsuretoinstall“Y”strainerinsuctionsideifthebrakewatercoolingpumps.Withoutstrainersthecavityofthediscbrakescouldbeblockedwithdebris.

5.1.1.3MajorProvidemaintenancereportforallworkcarriedoutonthedrawworksduringrefurbishment.

5.1.1.3MinorReplacethetwopressuregaugesonthegearboxes.

DiskBrake（Universal）Recommendations:

5.1.2.1.1CriticalDismantleallbrakecallipersandserviceaspermanufacturesspecification.Cleanbrakediscforallgreaseanddirt.Verifybrakediscisnotundersize（worn）

5.1.2.1.2CriticalVerifywithmanufacturermaximumdurationofserviceforthesafetycallipers.Thespringmayhavetobechangedafter6yearsinservice.Somemanufacturesrecommend12monthlychangeout

5.1.2.1.3CriticalVerifycorrectpre-chargeintheHPUaccumulatorbottles.

5.1.2.1.4MajorRepairallhydraulicleaksandreplaceoldhydraulichoses.

5.1.2.1.5MajorProvidemaintenancereportforthediscbrakes

SwivelRecommendations:

5.4.1.1CriticalVerifythatthethreadedconnectionoftheswivelhasbeeninspectedforcracksandthattherighasavalidinspectionreportavailable.APIRP8BTable1

5.4.1.2CriticalVerifythattheswivelyokehasundergonetherequiredNDTinspectionforcracksasperAPIRP8B.Validinspectionreportsmustbeonfileattherigsite.

TravellingBlockRecommendations:

5.8.1.1CriticalInstallsuitablepadeyeunderthecrownblockwithSWLcapableofhangingthetravellingblockandhook.Thisisforsafetyhangofflineduringslipandcutofdrillingline.

5.8.1.2MajorVerifythatthehighloadbearingareasofthetravellingblockareregularlyNDTinspectedasperAPIRP8B.（6-montlyand5-yearly）.APIRP8Bsection5Table1.

HookRecommendations:

5.9.1.1CriticalProvidefullNDTinspectionreportsforthehookandthatithasbeeninspectedasAPIRP8Bsection5table1.

DrillingInstrumentationRecommendations:

5.10.1.1MajorVerifyallinstrumentationiscalibratedsuchasRPMoftherotarytable,MDloadindicator,flowmeter,mudpumppressuregauges,etc.

DerrickRecommendations:

5.11.1.1CriticalInstallsuitablebumperblockunderthecrown.IfbumperblockismadeoftimberheavydutywiremeshmustbeinstalledaroundtheblockAPIRP54section9.2.16

TuggersandSheavesRecommendations:

5.13.1.1CriticalProvideengineeringcalculationforthetuggerfoundationverifyingSWLforthetwo5tondrillfloortuggerwinches.

5.13.1.2MajorMarkclearlythewinches"NOTFORMANRIDING"

MUDSYSTEM

MudAgitatorsRecommendations:

6.8.1.1CriticalNumberallagitatorsinaccordancewithoilfieldrecommendedpractices.Numberoneistheoneclosesttothedriller

6.8.1.2CriticalNumberallremotestart/stoponthemudtanksinaccordancewithagitatorandMCCpanel.

FlowLineSystemRecommendations:

6.9.2.1.1MajorEnsuretheworkingareaaroundthegumboboxissufficientforpersonnelsocleaningandmaintenancecanbedoneinasafemanner

BOP-HandlingEquipmentRecommendations:

7.6.1.1CriticalStripdownthetwotrolleybeamcranesforinspectionandreplaceworn,defectparsasrequired.

POWERPLANT

CaterpillarEnginesRecommendations:

9.1.2.1.1CriticalRepairemergencyairintakeshutoffvalvesongeneratorengines1and2

9.1.2.1.2MajorInstallremoteshutdowndeviseforallfourRiggenerators.Oneemergencyshutdownbuttoninthedrillerscabin.

AirReceiversRecommendations:

9.3.1.1.1CriticalHavepressurereliefvalveonairreceivernumber1re-tested

9.3.1.1.2CriticalHavereliefvalveventlineextendedtonearthefloorforsafetyreason

ELECTRICALEQUIPMENT

AuxiliaryBrakeRecommendations:

10.1.1.1CriticalCompleteoverhaulofResistorbankandtest

10.1.1.2MajorRoutingofcables[flatbar/cabletray]oftheresistorbankawayfromdeckplate

10.1.1.3MinorMechanicalcleanup&paint

MainGeneratorRecommendations:

10.2.1.1MajorReplacesingleholecablelugswithdoubleholeones

10.2.1.2MajorInstallaudio/visualalarmunit&commissionthesame.

10.2.1.3MajorMechanicalcleanupofGenerators3/4/5

10.2.1.4MinorProvidecableidforpowercablesatbothends.

10.2.1.5MinorProvidepropersizedearthcableforallgeneratorscleanearthboss&protectwithgrease.

10.2.1.6MinorProvideidtagsforcableatbothends.

MainTransformer（3-Phase）Recommendations:

10.3.1.1MajorInstallvisiblewarningsignpostingonmain&lightingtransformersenclosure

10.3.1.2MajorRoutecablestouchingdeckonaraisedflatbar/cabletray.

10.3.1.3MajorTheOEMhasprovidedoubleholearrangementonthemaintransformerbussoprovidedoubleholecablelugswithstdsizebolts&torquetoOEMspecifications.

10.3.1.4MajorReplaceearthcablewithpropersized,removerustonearthbossandapplycorrosionprotectiongrease.

10.3.1.5MinorMechanicalcleanup&painttouchupoftheinsideoftransformersenclosure

10.3.1.6MinorProvidelubricationonhinges&latchesofTransformerenclosuredoorforeasyquickopening.

10.3.1.7MinorCarryoutThermalinspectionofbusbars&connection&logthesame.

10.3.1.8MinorProvideIdtagsforallcables

Converters（SCRandVariable-FrequencyDrives）Recommendations:

10.4.1.1MajorGroundconnectioncrosssectiongreaterorequaltosupplyconnectionforsuppressionofradiointerferencenoise.OEMREQUIREMENTS

10.4.1.2MajorUsescreenedpower&controlcablesbetweenconverteroutput&motorThescreenmustbegroundedatbothend.OEMREQUIREMENTS

10.4.1.3MinorCarryoutTHERMALINSPECTIONofbusbars&connection&logresultsforfuturereference.

MainSwitchboardRecommendations:

10.5.1.1CriticalProvideCurrentinjectiontestreports

10.5.1.2MajorProvidegroundfaultdetectionsystem.

10.5.1.3MinorCarryoutthermalinspectionandlogforfuturereference

10.5.1.4MajorSupply&mountsafetyhook&Highvoltagerubberglovesinbothmainswitchboardcabins.

ACMotorsInsulationTestRecommendations:

10.8.1.1.1MinorProvideinsulationtestresultsofallmotors

MCCPanelsRecommendations:

10.9.1.1MajorRemoteoperationstarterstobeprovidedwithidtagswarningsignstobemountedinbothMainswitchboardcabins.

10.9.1.2MajorProvideloadanalysis;Shortcircuitcalculations&Tripco-ordinationstudyreport

10.9.1.3MinorCarryoutthermalinspection&logforfuturereference

LightingSystem（Main）Recommendations:

10.10.1.1MajorRectify&supportallcablesatthebottomofMainlightingDB

10.10.1.2MajorAddoneadditionalceilinglightfixturetobothmainswitchboardcabinsandgeneratorcabins.

10.10.1.3MajorAllpolelightsinstalledonthedrillfloor,shaleshaker&mudtankswillhavetobeprovidedwithadditionalsupporttomakethemrigid.

10.10.1.4MajorProvidelightfixtureoutsideallcabindoors.

10.10.1.5MajorMechanicalcleanup5noexlightsondrillfloor&replacePGwithexglands

10.10.1.5MinorIdtagthecompletelighting&smallpowersystem.

LightingSystem（Emergency）Recommendations:

10.11.1.1MajorProvideadditionalbatterybackuplightsinGenerator/Machineryroom

10.11.1.xMajorInstallallbatterybackuplightscorrectlyinrightlocation

10.11.1.xMinorProvideEsignonallemergencylights.

ElectricalOutletsandPortableEquipmentRecommendations:

10.12.1.1CriticalProvideResidualcurrentcircuitbreakerforallelectricaloutletmeantforhandtools.

Batteries,BatteryChargersandUPSRecommendations:

10.14.1.1CriticalProvidebatterychargerforgeneratorno5

10.14.1.2MajorProvidenew24v/30AUPSforGenerator1,3&4

EarthingandEarthBondingRecommendations:

10.18.1.1MajorProvidepropercolorcoded&sizedearthbondingcables

MiscellaneousItemsRecommendations:

10.20.1.1MajorOrganizeandprovidetechnicaldrawingsandmanualstocoverallrigequipmentsandfacilitatetrouble-shooting.

SAFETYEQUIPMENT

AutomaticFireDetectionSystemRecommendations:

11.1.1.1.1CriticalEnsureallbuildingsareinstalledwithsmokedetectors.Smokedetectorsshouldbehardwired.

PortableExtinguishersandFire-FightingEquipmentRecommendations:

11.1.4.1.1CriticalMachineryspacesanddieseltankstationsaretobeequippedwithextinguisherssuitableforoilfires.50%oftheseshouldbeofthefoamtype.

11.1.4.1.2CriticalInstallsignabovefireextinguishersclearlymarkingthelocationofeachfireextinguisher.

11.1.4.1.3MinorInworkingareasthereshouldalwaysbeanextinguisherathandwithin10metres,preferablymountedinabracket,notloosestanding,andprotectedfromtheweather

11.1.4.1.4MinorExtinguishersaretobenumberedandrecorded.Inspectthemonamonthlybasis.

11.1