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ID:40844283
大小:3.07 MB
页数:41页
时间:2019-08-08
《Fishing钻井打捞常用工具》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、FishingPracticesandFishingToolsFishingisthegeneraltermusedtodescribethespecialtechniquesthatareemployedtorecoveritemsorequipmentfromdownhole.Theseitemsorequipmentstuckintheholepreventnormaloperationfromcontinuing.Asaresult,theymustberemovedasrapidlyaspossi
2、ble.Thelongertheequipmentremainsinthehole,themoredifficultitistorecoverit.Detailsoftools,equipment,andproceduresareincludedinthissection.Causesoftroublerequiringfishingoperationsfatiguefailures,causedbyexcessivestressinthedrillstringfailureofdownholeequi
3、pmentonaccountofcorrosionorerosionbydrillingfluidspartingofdrillstringbecauseofexcessivepullwhenattemptingtofreeequipmentstuck.mechanicalfailureofpartsofdrillbitaccidentaldroppingoftoolsorotherundrillableobjectsintothehole.stickingofdrillpipeorcasingCa
4、tegoryofFishingToolsFishingToolsforTubularProducts*insidefishingtools*outsidefishingtools*hydraulicandimpacttools*others•MiscellaneousFishingEquipment*millingtools*junkbasket*magneticfishingtools*othersFishingtoolsselectionThetablebelowpresentsthetypesoffi
5、shingtoolsandtheirapplications.StandardFishingAssemblyOvershot-Fishingbumpersub-DC-fishingjar-DC's-Accelerator-HWDP.Thisconfigurationmaybemodifiedtosuitparticularconditions.Thenumberofdrillcollarsdependsonwhatisavailableandwhatmaybealreadydownhole.Toachiev
6、ethemaximumjarringeffect,theamountofdrillcollarsinthefishingassemblyshouldequaltheamountofthosealreadydownhole.StandardFishingAssemblyWithanacceleratorinthefishingassemblythenumberofdrillcollarsmaybesubstantiallyreduced.Anacceleratorisrecommendedforallfish
7、ing.Additionalinformationcanbefoundinthemanufacturersliterature.Asafetyjointshallnotberunwhilefishing,becausesafetyjointsarelikelytofreezewhenjarred.However,afullopeningsafetyjoint(drivejointmadeforjarring)maybeusedwhenawash-overstringisrun.Thisfullopening
8、safetyjointisrunbelowthestandardfishingassemblysothatinternalcuttersmayberunwhenthewash-overstringsticksandhastobebackedoff.StandardFishingAssemblyDetaileddrawingsofthefishingassemblyshallbemadeandkept,before
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